GENERAL MEASURE GMT-H2 Weigh Transmitter Instruction Manual

Connect the analog sensor scale interface to the load cells as per the provided guidelines. Utilize the RS485 and RS232 interfaces based on your requirements.

Display and Operation

Use the LED nixie tube display to view weight measurements. Utilize the keys on the panel for operations like zero clearing, data input, and menu function selection.

Calibration

Calibrate the meter as necessary using the preset point function. Follow the calibration information interface instructions for accurate calibration.

FAQ

Q: Can I use an AC220V power supply with this product?
- A: No, using AC220V power will permanently damage the meter. Only use DC24V power supply as specified.

Q: What are the certification standards for this product?
- A: The product conforms to GB/T 7724-2008 and JJG 669-2016 standards. It has CMC accuracy level 3 and holds safety certification CE.

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General Description

1.1 Functions and Characteristics

Shell type Hanging, stainless steel waterproof case

Sensor interface

1 way 6-wire analog sensor scale interface for up to 8 350 sensors

Display 2 “6-bit LED nixie tube

2 way RS485 interface, 1 way RS232 interface

4 In and 6 out transistor input/output interfaces

Interface 1 analog output interface (current/voltage optional)

Optional interface

Single network port communication port Profinet bus interface Ethernet/IP bus interface

Preset point function

Four preset points are provided, which can be set as required

1.2 Technical Specifications

Power supply
Dimension
Product weight
Certified working environment
Working environment
Storage environment
Power
Platform excitation voltage
Load cell requirements
Sensitivity/Certified sensitivity

24VDC (18 to 36VDC) 175*150*75mm 2165g – 1 0 4 0 9 0 %R . H without dew
– 2 0 6 0 9 0 %R . H without dew
– 4 0 6 0 9 0 %R . H without dew
10W 5V 200mA(MAX) 1 analog scale table interface ,connect up to 8 350 sensors with 1mV/V, 2mV/V, and 3mV/V sensitivity 0.01 uV/uV/d d / 0.5

Non-linerarity
A/D conversion speed
Display Precision
Keyboard
Decimal point position

0.01 % F.S Default: 480 t i m e s / s e c o n d ( p a r a m e t e r optional) 1/1000000 5-key sounding mechanical keys
0, 0.0, 0.00, 0.000,0.0000; 5 optional

1.3 Panel Diagram

Status indicator:
POWER: Power indicator, lights up when indicator is power on. ZERO: Zero, Light on when present weight is within 0±1/4d. STAB: Steady indicator light; When the weight of the material on the scale or hopper changes within the stability range, that is, the weight is stable, the indicator lights up. NET: Net weight indicator, can be defined as serial port 1/ serial port 2/ serial port 3/ network port/net weight, can be selected through the system
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parameters SYS– t5–t5.2. The default net weight indicator, display weight for net weight, the indicator light; If it is defined as a serial port or network port, it blinks during communication. COM1: Serial port/network port communication indicator, can be defined as serial port 1/ serial port 2/ serial port 3/ network port, can be selected by system parameter SYS– t5–t5.3, the default serial port 1, RS485_1 communication, the indicator blinks. COM2: Serial port/network port communication indicator, can be defined as serial port 1/ serial port 2/ serial port 3/ network port, can be selected by the system parameter SYS– t5–t5.4, the default network port, network port communication, the indicator blinks. Key description:
:Zero/ESC, exit the current operation or return to the previous menu
key; In the state of net weight, perform skin clearing; Under the state of gross weight, execute zero clearing; Calibration information interface, long press to clear the calibration information.
: Parameter selection key,data input operation, when the main
display blinks, press this key to add 1 flashing bit, if the blinking position is 9, press this key to add 0 data; Peeling is performed in the state of gross weight, and the net weight is displayed;
: Menu function select key, when input the data , the main display
blinking bit flashes, press this key, the blinking bit moves to the right one, if the current blinking is the last bit, press this key, then the blinking bit moves to the leftmost bit.
: Confirm key, confirm to enter the current option when CAL or
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parameter setting; Data input operation confirms the data and end the operation; Under the main display interface, short press to switch the display weight and analog quantity; Long press to enter the interface of viewing version information, in this interface, short press to switch software version and software time; On the interface of software time, long press again to enter the interface of viewing calibration information, and on this interface, short press to switch calibration times and calibration verification code.
: Long press to print/short press to walk the paper; In the parameter input state, press this key, flicker bit data reset to 0; Under the zero millivolt interface, press this key to clear millivolts.

1.4 Interface Diagram

Installation and Wiring

2.1 Connection of Power Supply
MT-H2 Stainless steel converter controller uses DC 24V power supply. The correct wiring of the power terminal is shown below:

PLEASE PAY ATTENTION TO THE POSITIVE AND NEGATIVE POLARITY OF THE POWER SUPPLY AND DO NOT CONNECT IT BACKWARDS.

2.2 Sensor Connection

GMT-H2 module needs to be connected with external resistance strain bridge sensor, and the sensor is connected to the module in the six-wire system as shown in the following figure. When a four-wire sensor is selected, SN+ and EX+ o f t h e m o d u l e m u s t b e short-connected, and SN- and EXm u s t b e short-connected. Each port of the sensor connection terminal is assigned as:

Ports EX+ SN+

EX-

SN- SIG+ SIG- SHLD

Power Induction Negative Inductive Positive Signal Shielded 6-wire positive positive power negative signal negative wire
supply

Power positive 4-wire

Negative power Positive Signal Shielded signal negative wire

What to watch for: 1. As the output signal of the load cell is an analog signal sensitive to electronic noise,
shielded cables should be used for load cell wiring and laid separately from other cables, especially away from AC power supply.
2. For short transmission distance and little temperature changes in the occasion or

accuracy requirements are not high occasions can choose the four-wire sensor; But for far transmission distance or high accuracy requirements of the application should choose the sixwire system sensor;
3. For applications where multiple sensors are connected in parallel, make sure the sensitivity (mV/V) of each sensor is consistent.
2.3 Switch quantity interface
GMT-H2 stainless steel transmitter includes 10 way input and output controls (4 in /6 out). Photoelectric isolation mode is adopted, and the instrument is driven by internal power supply. The switching input of the instrument is low and effective; Output transistor collector open output mode, each drive current up to 500mA, full load current up to 3A. The terminal wiring is shown in the figure below:
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Input interface diagram

Output interface diagram

GMT-H2 stainless steel transmitter IO can be customized for the convenience

of the user wiring and some special applications,IO contents refer to Chapter

9.1. When the product leaves the factory, the default definition is as follows:

Output

Input

OUT1

Undefined

IN1

Undefined

OUT2

Undefined

IN2

Undefined

OUT3

Undefined

IN3

Undefined

OUT4

Undefined

IN4

Undefined

OUT5

Undefined

OUT6

Undefined

2.4 Analog interface

The instrument has 1 analog output function, interface I+, I-, V+, V-.

The output mode current/voltage can be selected in the analog parameters list

and the analog calibration method, please refer to Chapter 6 for details. Under

the normal display state, you can view the analog output by pressing the

button

. The format is A x.xxxx.

The analog output interface is defined as shown on the left: V+: positive end of the voltage output; V-: negative end of voltage output I+: positive end of current output; I-: negative end of current output
2.5 Serial Port Connection
GMT-H2 are equipped with three serial ports: two RS485 serial ports and one RS232 serial port. Support a variety of protocols: ModbusRTU protocol, command mode, continuous mode, printing, etc.
RS485_1(Serial Port1), RS485_2(Serial Port2), RS232(Serial Port3) ports are shown as follows:

RS232 connection mode:

RS485 connection mode:

In RS485 mode, the interface must be connected to wires A and B, GND is the signal ground. In the case of serious interference, low-resistance wires are used to connect the signal ground, so that the ground potential of each node is equal, which can significantly improve the communication quality. Under RS232 mode, all three wires must be connected, including Rx, Tx and GND.
2.6 Network Port Connection
GMT-H2 supports common network port communication, PN, and EIP bus communication (select 1 of 3 network port communication functions, order need to declare). Support TCP protocol (Modbus/TCPGM-Cont TCP) and PN, EIP bus protocol.
Single network port matching, support Modbus-TCP protocol, GMCont continuous mode.
With a dual-network port option, it is used to cascade multiple devices.
Internal communication light: The hardware connection is normal, and the internal communication light of the instrument is steady on.
Connection light: The network cable is connected properly and the connection light blinks.
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Menu overview

3.1 Setting Flowchart

1. Between items of the same level, you

can press

to select the required

item. Take analog quantity as an example,

when A1 is displayed, press this key to

switch to A2.

2. Press

,enter the minor item

under the current major item, that is,

when A1 is displayed, press this key to

enter the A1.1 item and modify the

related parameters.

3.2 Parameter setting method

There are two types of GMT-H2 parameter Settings: option

class and numerical class. Option class parameters are in the

parameter value screen, select with the key

. Numeric

class parameters Under the parameter interface, select numeric

bits with keys

and numeric values with keys

For example: Numerical classes:

Enter the parameter item blinking bit from the first 0 to the second adjust

the value to 2

confirm the modification

Option class:

Enter the parameter item adjust OFF to ON confirm the modification

Basic Parameters

Basic Parameters (Setup)

4.1 Parameter List

Number F1 F1.1
F1.2
F1.3 F1.4 F1.5 F1.6 F1.7 F1.8
F1.9

Initial value There is no
0
0
20
1 4 0 480 OFF
1000ms

Description
PWR-On Zero Range (0 to 101% optional). 0: Disables automatic zero clearing during power-on. 1-100: Performs automatic zero clearing within the maximum range 1-100% during power-on. 101: Restores the last zero before turn off TrZero Range (0 to 99d optional). This parameter is used to automatically calibrate slight drift of zero due to a small amount of material remaining on the scale body. When this parameter is 0, the zero tracking function is turned off. Zero Range (00%~99% of maximum range). If the current weight is greater than the maximum range* Zero range, the display displays “Error2” alarm; If the scale is not stable for zeroing, the monitor will display “Error3” alarm. STAB Range (0 to 99d optional). If the weight continues to change within the stability range, the weight value is considered stable. Digital filter level 0: no filter; 9: strongest filter (0~9 optional) Steady-state filter level (0 to 99d optional) 0: Turns off the steady-state filter. Non-0: Starts the steadystate filter if the weight changes within the range AD sampling rate: 30, 60, 120, 240, 480, 960 times /s optional Tare record function switch OFF: turn off tare memory function; ON: After power off and restart, the instrument still retains the previous tare weight.
TrZero Time (1-5000ms optional )
during the tracking time, if the weight change is less than the tracking range, the system will automatically track the zero position

F1.10 F1.11 F1.12 F1.13

1000ms 1 3
OFF

STAB Timer (1-5000ms optional) Range1-5000 Milliseconds.If the weight range does not exceed the STAB range during that time, the weight is stable
Force Zero Threshold(1-999999 optional) Set the Force zero threshold value,If the current weight is less than or equal to this set value and not 0, one of the force zero return conditions is met.
Force Zero Timer(1-20s optional) Set the Force zero time,The weight remains stable within the reset threshold and within this set time, meeting the force zero reset condition.
Force Zero Switch OFF:Turn off the force zero function, ON:After being turn on, the current weight is less than or equal to this set value and not 0 and remains stable within this set time.After force zero Time, the Force Zero operation is excuted.

Calibration

Calibration (CAL)

5.1 Calibration Instructions

(1) When GMT-H2 weight display or any part of the weighing system is changed for the first time and the current device calibration parameters cannot meet user requirements, the display should be calibrated. The calibration can determine the system zero position and gain of the weighing system. (2) The user changes a parameter, after completing the setting, the key saves the current setting, the key returns to the normal working state.

(3) Refer to Chapter 14 for the error alarm information in the calibration process.

5.2 Calibration parameters

Number C1 C1.1 C1.2 C1.3
C1.4
C2
C3 C4

Initial value

Instructions

Unit, range: t; kg; g; lb

Decimal point, range: 0; 0.0; 0.00; 0.000; 0.0000

Division, the instrument indicates the minimum

change in value

Range: 1,2,5,10,20,50
Maximum range, the maximum display value of 10000 the meter, generally take the sensor range. Range:
0~999999 can be set
Zero calibration, carry out zero calibration and weightless zero calibration, refer to Chapter 5.3.2 zero calibration.
Weight calibration, carry out weight gain calibration or theoretical value calibration, refer to Chapter 5.3.3 weight calibration.

C4.1

1.00000

Calibration correction coefficient, after
calibration, if the zero point is correct, there is a
deviation of weight, can be used to correct the
weight value. How this value is calculated: If the meter shows weight A, but the weight is B after weighing, the correction factor is calculated by :(actual weight B* current correction factor)/ displayed weight A

5.3 Calibration process

Description of CAL steps:

a) Under the normal display, enter the CAL calibration interface and input the correct calibration password.
b) Select the required unit, decimal point, minimum indexing and maximum range in C1 parameter. Refer to Chapter 5.3.1 Parameter selection for details.
c) For zero point calibration, refer to the Zero Calibration flowchart in Chapter 5.3.2.
d) For weight gain calibration, refer to Gain calibration flow chart in Chapter 5.3.3. Note: If it is not convenient to load weights on site for system calibration, manual input zero calibration (refer to manual input in Chapter 5.3.2) and theoretical value calibration (refer to Chapter 5.4) can be used for weightless calibration.

5.3.1 Parameter selection

1. In this state, press

(twice) to display

CAL. Press to

the password input

interface.

2. Enter the password correctly and enter the C1

parameter selection interface automatically one

second after SUCC is displayed. Combine

and

select the corresponding

unit, decimal point, indexing value and

maximum range according to the demand.

5.3.2 Zero Calibration Zero calibration means zero calibration of the scale platform. There are two ways to do zero calibration: automatic acquisition and
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manual input. When the new equipment or weighing structure is adjusted, the “automatic acquisition” method must be used for zero calibration. Automatic acquisition method:

1. Millivolt display interface, the display value is similar to the value obtained by users using a multimeter to measure the SIG+ and SIGend of the sensor, the specific function and application description refer to Section 5.5.

2. Zero calibration interface, clear the scale,

wait for stable display (STAB indicator light),

press

, display SUCC complete zero

calibration.

If zero is not calibrated, press

return C2.

Manual input: 18

Generally used for no weight calibration, the weight calibration recorded data recorded value for manual input.

Zero calibration interface, press

enter the zero millivolt value of the historical

record, press

, display SUCC to

complete the zero calibration.

If zero is not calibrated, press

return C2.

5.3.3 Weights Calibration

Use standard weights for weight calibration. Calibration steps:

1Enter the gain calibration interface C3, the display OFF means enter the

weight gain calibration; 2This instrument supports 5 calibration points, take the CAL Point1

calibration as an example, display Load1, add weights to the weighing

platform, when the stable output is effective, press the button

;

3Display 000000 interface, input weight corresponding weight value;

4 Press

key to complete the standard point1 weight calibration,

single point calibration, after the completion of the calibration of the first

weight point,press

and exit.

Using multi-point calibration should note: 1 Users can choose the number of calibration points, such as single point
calibration, after the completion of the calibration of the first weight point can exit. 2 Cross-point calibration is not allowed, and gain points are calibrated in sequence. For example, when 3-point calibration is adopted, it is necessary to calibrate point 1, point 2 and point 3, but it is not possible to calibrate point 3 and point 4 after completing point 1 by crossing point 2.
3 For multi-point calibration, the weight should be increased. For example,
the weight of standard point 2 must be greater than the weight of standard point 1, otherwise the alarm of “Error” will appear.
5.4 Theoretical value calibration

Theory CAL refers to weight calibration operation by connecting sensor

sensitivity and sensor range value through input.

Theory CAL needs 3 steps: 1 Enter the gain calibration interface C3, display ON, it means open the ”

Use T-CAL ” switch, enter the theoretical value calibration interface; If

OFF is displayed, it will enter the weight gain calibration interface.

2 Prompt SE, set sensor sensitivity (such as connecting multiple sensors,

enter the average sensitivity)

3 Prompt CP, set the total sensor range (e.g. connect multiple sensors,

enter total sensor range and)

4 Press

the button to display SUCC, and the theoretical value

calibration is completed

5.5 millivolt display application
This function is mainly used for system detection, four Angle error detection of force transmission mechanism, sensor linearity detection. 1. System detection
1) When the millivolt number changes with the loading weight, it indicates that the sensor connection is correct and the force transfer mechanism works normally;
2) When the millivolt number is OFL(or -OFL), it indicates that the pressure under the sensor is too large (or too small), and the unloading weight (or loading weight) should be processed. If it is still OFL(or -OFL) after processing, it may be caused by the following reasons:
a) The force transmission mechanism is faulty. Please check and
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remove it b) Sensor wiring error, please check and remove c) The sensor is damaged, please replace the sensor
2. Detect the four Angle error of the force transmission mechanism Load and record the corresponding millivolts at the four corners of the
weighing platform (or weighing bucket) respectively. If there is an obvious error, please adjust the force transmission mechanism. 3. Sensor linearity detection
In the range of the weight transmitter, carry out multiple equal weight loading, before each loading with the zero key to clear millivolts, record the millivolt value after loading; After the completion of all weight loading, if one or more millivolts recorded differ greatly, it indicates that the linearity of the sensor is not good, please replace the sensor or adjust the force transmission mechanism.
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Analog Parameters

6.1 Analog parameters

Number A1
A1.1
A1.2

Initial value
4-20mA
XXXXXX

Instructions
Analog Type, range: 4-20mA, 0-10V, i_User(user current), u_User(user voltage) Note: The analog output mode is user current/user voltage only with A1.2~A1.5 parameters Minimum current/voltage

A1.3 XXXXXX Zone Zero current/voltage

A1.4 A1.5 A2
A3

XXXXXX Range current/voltage
XXXXXX Maximum current/voltage Analog current calibration, specific operations refer to Chapter 6.2 Analog calibration Analog voltage calibration, specific operations refer to Chapter 6.2 Analog calibration

6.2 Analog calibration

The output of analog quantity has been calibrated when the instrument leaves the factory, so the user does not need to calibrate the output of analog quantity. If the analog output of the instrument is abnormal, the user can calibrate the analog output by himself. The calibration method of current and voltage is the same. The calibration method here takes current calibration as an example (it is recommended to calibrate under the guidance of professional personnel).

1) The multimeter is connected to the I-

and I+ output outlets of the meter.

2) Combine the

and

key to modify the DA code and view

the current value of the multimeter.

3)Input the multimeter to read the value

3) Press

key, complete the

analog current calibration.

5) Current calibration supports 5 points calibration, other points calibration reference point 1.

Communication Parameters

7.1 Communication Parameters

Number N1 N1.1 N1.2
N1.3 N1.4 N1.5 N1.6
N1.7
N2 N2.1 ~ N2.7
N3

Parameter item

Instructions

RS485_1 Serial port parameters

Slave ID, range: 01-99

38400

Baud rate, range: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200

Modbus-RTU

Communication protocol: Modbus RTU, r-Cont, r-SP1, tt(continuous transmission), CB920, rE-Cont, rERead, PT650D, YH(protocol), Print, WI-125

8-E-1

Data Format, range: 8-N-1, 8-E-1, 8O-1, 7-E-1, 7-O-1

AB-CD

Modbus High and low words, range: AB-CD (high words first), CD-AB (low words first)

20ms

Continuous send interval, the time interval between frames under the continuous send protocol. Range: 01000ms

OFF

Whether to send checksums under the tt(Toledo continuous Mode) protocol. OFF: No verification is sent. ON: sends the verification. YH (continuous mode) OFF: Does not judge if it is stable;

(send live weight) ON: Judge if it is stable (send realtime weight when stable, send 0 when unstable)

RS485_2 Serial port parameters

Refer to RS485_1 serial port parameters

RS232 Serial port parameters

N3.1 ~ N3.7 N4 N4.1 N4.2 N4.3 N4.4
N4.5 ~ N4.8
N4.9
N4.10

Refer to RS485_1 serial port parameters

Network port communication parameters

Mb-TCP

Communication mode: If a common network port is selected, the following protocols are available: Mb-TCP (Modbus-TCP), GM-Cont (GMCont/TCP)

AB-CD

Double word mode, range: AB-CD (high word first), CD-AB (low word first)

Send interval, used to control the time

20ms

interval between frames. Range: 0-

1000ms

502 192.168.000.001

Port, range: 1-65535
Local IP address segment ranging from 0.0.0.0 to 255.255.255.255.
Remote setting switch(This

parameter is visible when selecting

PN/EIP attach board)

Range: OFF, ON;

OFF

ON: During PN/EIP communication, working parameters and some

calibration parameters can be

Flo wt

modified through the master station.
OFF: During PN/EIP communication, the modification of parameters at the master station does not take effect.
Data type, PLC Display type selector switch. Range: Int: integer weight display, Flo wt(Float) : floating point weight display

Print parameters

N5.1

Chinese

Scope: Chinese (Chn), English (En)

Print content, range: 0- Show weight,

1- gross weight, 2- net weight, 3- Net

N5.2

weight + Tare (two lines), 4, Gross

weight + net weight + Tare (three

lines).

N5.3

Print interval, number of lines spaced between each print, range: 0-99

7.2 Print Format

Communication parameter Com– N1– N1.3 When the protocol is

selected as “Print”, long press

under the main interface to print the

instrument data, or set the input to I11 print, and print out through the switch

quantity; Short press

the paper.

Examples of print formatting applications:

Parameter Settings

Print bill contents (in Chinese)

Printing language

Chn Ticket No. Xxxxxxxx1

Print the contents Print spacing

Display weight
2

Show weight Net weight X.XXXX kg

—————- (second print)

Presetting Point Parameters

Press the key

five times under the main display interface,

SPoint will be displayed. Under this interface, press the button

, if

the parameter password switch t6.2 is ON, then the parameter password needs

to be input; if it is OFF, then the set point parameter can be set P1 without

entering the password; press the button

to enter the P1.1, set the

relevant set point parameters according to the parameter table, and press

save after modification. Then press

to exit to item P1, and

press

to set the next parameter. The same can be used for parameter

Settings of other parameter items.

Note: There are four major items in the set point. Set point X represents “set

point 1 to 4”, which can be set by the user as required.

No.

Initial value

Instructions

P1-P4 PX.1

/ OFF

Parameter first major item
Whether the state change needs to be stable; OFF: No; ON: yes.

PX.2

0.2

Minimum duration;0 to 99.9 can be set

PX.3

P1.3 = 1 P2.3 = 5 P3.3 = 0 P4.3 = 0

Valid condition: 0: prohibited; 1: < less than; That is, if the weight is less than PX.4, the output is valid, but it is not. 2: <= less than or equal to; That is, if the weight is less than or equal to PX.4, the output is valid, but it is invalid. 3: == equals; That is, when the weight is equal to

PX.4 PX.5

PX.4, the output is valid, but it is not.

4: >= greater than or equal to; That is, if the weight is

greater than PX.4, the output is valid, but it is not.

5: > greater than; That is, if the weight is greater than

PX.4, the output is valid, but it is not.

6:! = does not equal; That is, if the weight is not equal

to PX.4, the output is valid, but it is not.

7: _<>_ outside the interval, that is, when the weight

is less than PX.4 or greater than PX.5, the output is

valid, but it is invalid anyway.

8: =<__>= within the interval, that is, when the weight

is greater than or equal to PX.4 and less than or equal

to PX.5, the output is valid, but invalid anyway. ;

9: external trigger. If it is IO, the trigger does one state

transition at a time. If it is a command, it is judged by

accepting valid or invalid commands.

Set value 1; 0 to 999999 can be set

Set value 2; 0 to 999999 can be set

IO Definition

9.1 IO Definition

Under the main display interface, press the key

6 times and the

meter will display io dEF. Under this interface, press the key

to enter

the interface of custom setting of switch quantity. If the t6.2 item of the

parameter password switch is ON, you need to enter the parameter password

before entering the custom setting of the switch quantity.

IO Definition operation: Follow the steps to set the definition content of

each switch quantity. For example, define IN1 as the reset input and OUT1

as the output of set point 1. The Settings are as shown in the figure, and the

other input-output Settings are the same.

Function meaning of switching quantity: Output quantity

Code Definition

Instructions

If the port number is defined as O0, this output port

None

is undefined.

SP1

Set point 1 status output, this signal is valid.

SP2

Set point 2 status output, this signal is valid.

SP3

Set point 3 status output, this signal is valid.

SP4

Set point 4 status output, this signal is valid.

This signal is effective when the meter is in steady

Stable

state.

This signal is effective when the meter weight

Overflow

shows an overflow.

Input quantity

Code Definition

Instructions

None

If the port number is defined as I0, this input port is undefined.

The effective set point 1 state of the signal will be

SP1

set to invalid and will need to be valid again after

the comparison condition becomes invalid before

the effective state can be output.

The valid set point 2 state of the signal will be set to

SP2

invalid and will need to be valid again after the

comparison condition becomes invalid before the

valid state can be output.

The effective set point 3 state of the signal will be

SP3

set to invalid and will need to be valid again after

the comparison condition becomes invalid before

the effective state can be output.

The signal’s valid set point 4 state will be set to

SP4

invalid, and will need to be valid again after the

comparison condition becomes invalid before the

valid state can be output.

Clear zero

If the signal is effective, the instrument will realize zero clearing. This input is the pulse input signal.

Parameter reset

Reset all parameter values when the signal is valid.

Tare/Clear The signal works once peeling and again

Tare

effectively peeling

Tare

The signal effectively performs the peeling operation

Clear Tare

The signal effectively performs the peeling operation

After defining the function, if the signal is valid

(level signal), it can enter the state of password input

I10

Calibration in the first item of the calibration step, otherwise it

lock

cannot enter, and prompt the alarm Error7.

If this function is defined, MODBUS cannot

calibrate serial ports.

I11

When this signal input is valid, the print function is performed.

I12

Gross/ Net When the signal input is valid, the gross net weight weigt switch is switched.

9.2 IO test

The instrument switching quantity test function is used to test whether the

instrument IO switching quantity is correctly connected to the device. It is

divided into input port test i-test and output outlet test o-test.

In the weighing state, press the button (

7 times) to display

ioTEST. Press

to enter the interface of switching quantity test.

When the external IN1 input is

When output test, the state of outlet O1

effective, the input port IN1 switches is OFF. When press

switch to

from OFF to ON, as shown in the figure above. Indicates that input port 1 is properly connected. Test other input ports in the same way.

ON, the external output 1 is valid, which

means that the connection of output 1 is

correct. Press

to switch other

output test.

System Maintenance

Parameter Items
t1 Version information t2 Display test
t3 Parameter reset
t4 Remote Edit

Instructions

Check the compile date and time, corresponding version

information, calibration times, and calibration verification

code in front and background. For details, see Chapter 1.3

Button Description.

This screen test, ENTER this screen, screen display 888888, all indicators are on, press Enter, 888888 and indicator flashing to prove that the screen display is normal.

t3.1 All parameters are reset

Show yes and hit ENTER to restore all parameters to their factory Settings.

t3.2 Reset the calibration parameters

Show yes and hit ENTER to restore the calibration parameters to their factory

Settings.

t3.3 Reset application parameters (except for calibration parameters)
t4.1 Calibrate parameter remote editing switch
t4.2 Remote Edit switch of Application parameters (except for calibration parameters)
t5.1 Backlight level

Show yes and hit ENTER to
restore parameters other than
calibration to factory Settings.
ON and OFF are optional. If ON is selected, the calibration parameters can be set through the communication port. Otherwise, the communication port is read-only to the calibration parameters.
ON and OFF are optional. If ON is selected, application parameters can be set through the communication port. Otherwise, the communication port is read-only to application parameters.
Set the display brightness level. Initial value: mid;

Range: low (low brightness),

· t5 Indicator

mid (medium brightness), high (high brightness)

customization
t5.2 NET Indicator Definition

Initial value: 4; Range: 0-4, respectively 0- serial port 1,1 serial port 2,2 – serial port 3,3 – network port, 4- net

weight.

Initial value: 0; Range: 0-3,

t5.3 Communication

which are 0- serial port 1,1 –

Indicators 1 Definition serial port 2,2 – serial port

3,3- network port.

Initial value: 3; Range: 0-3,

t5.4 Communication

which are 0- serial port 1,1 –

Indicator 2 Definition

serial port 2,2 – serial port 3,3

– network port.

To set the password for

t6.1 Calibrate and reset password Settings

entering the calibration parameters and resetting the parameters, enter the same

password twice.

ON and OFF are optional. If

you select ON, you need to

t6.2 Parameter password enter the password when you

t6 Password Settings

protection switch

enter the option to change the parameter value after it is enabled.

This parameter is valid if the

parameter password is set to

ON. Used to set the password

t6.3 Parameter Password for entering other parameters

Settings

besides the calibration

parameter and parameter reset.

Enter the same password twice

to change.

t7 MAC Settings

The MAC address of the instrument can be queried but cannot be modified. Initial value: BC.66.41.90.35.56

Display meter model number,

t8 Meter Info t8.1 Meter Model

default GMT-H2, model

number can be customized,

t8.2 Meter ID t8.3 Attach Board 1 Info

refer to Chapter 15 for details.
Display meter ID, default: 0000, modifiable.
Display add-on board information. 100: No attachment board; 101:TCP network port; 102:PN; 103:EIP; 104:EtherCAT.

Serial Communication

GMT-H2 is equipped with three serial ports, two RS485 channels and one RS232 channels to realize communication with the upper computer.
The serial port supports r-Cont protocol, r-SP1 protocol ,tt Torrido protocol, Cb920 protocol, rECont protocol, rErEAD protocol, PT650D protocol, Yh protocol, WI-125 protocol (large screen protocol) and Modbus protocol (bus).
See Section 2.5 for serial port terminals. The baudrate, communication protocol Settings and communication format are set to communication parameters N1.2, N1.3 and N1.4. 11.1 r-Cont protocol

Com– N1– N1.3 Select r-Cont protocol. In this mode, there is no need

to send any command to the weight transmitter. The monitor automatically

sends the collected data to the supreme computer.

Its data frame format:

STX

Scale number

Channel number

Status

Weight value

CRC CR LF

Among them:

STX — 1 bit, start character, 02H

Scale number — 2 bits, range 01 to 99

Channel number —– is fixed at 31

Status — 2 bits, high byte: Fixed to 40H; Low byte the individual bits are

defined below

D3 D2 D1

Gross Undefined Undefined Undefined net
weight

Plus /minus

Zero Overflow Stabilization

Fixed :0 Fixed :1 Fixed :0 0: gross 0: positive 0: 0: Normal 0: unstable

weight 1: net weight

1: negative

non- 1: zero Overflow 1: zero

1: Stable

Weight value — 6 digit unsigned number; Return “space space OFL

space” when weight positive (negative) overflows

CRC — 2-bit, checksum

CR — 1 bit, 0DH

LF — 1 bit, 0AH

For example:

Current meter automatically returns data: 02 30 31 31 40 41 20 20 20 37 30

30 (take display weight) 32 34 0D 0A

The current status of the meter is stable, the weight is positive, and the current

weight is 700.

11.2 r-SP1 protocol

Communication parameters Com–N1–N1.3 Select r-SP1 protocol. In

this mode, the weighing display will send the current data to the supreme

computer only when it receives the command.

Code: ASCII

Supported opcodes: W: write operation; R: read operation; C,

calibration; O, zero.

11.2.1 Parameter code description table

Operations

Parameter code

Parameter name

Read current status with weight

Have weights to mark the zero

Zero point without weights

Have weight gain calibrated

Absolute

Number of characters 8
6 6 7 characters:

millivolts

Millivolts relative

to zero

Clear zero

operation

command

11.2.2 Error Code Description Sheet

D6D5D4D3D2D1D0; D6:+; D5-D0: ASCII code corresponding to 6 millivolts with a fixed
decimal point of 4
7 characters: D6D5D4D3D2D1D0 D6: +/-; D5-D0: ASCII code corresponding to 6 millivolts, fixed with 4 decimal points

In the communication mode, if the weight transmitter receives a data

frame error, there will be an error code in the data frame sent to the upper computer. The error code is described as follows:

1: CRC check error 2: Operation code error 3: Parameter code error

4: Error writing data 5: The operation cannot be performed 6: The channel number is incorrect

Note: The default channel number for this monitor is: 1 (31H)

11.2.3 Example Commands

11.2.3.1 Upper computer reads the current status of weight transmitter

Format of send command: STX Scale numberChannel number R WT CRC CR LF
Meter response format after correct reception: STX Scale number Channel number R WT state Display valueCRC CR LF

Meter error after receiving response format: STX Scale number Channel number R WT E Error code CRC CR LF

Among them:

STX — 1 bit, start character, 02H

R — 1 bit, 52H

WT — 2 bits, 57H 54H

E — 1 bit, 45H

Status — 2 bits, high byte: Fixed at 40H; Low byte the individual bits are

defined below

Gross

Undefined Undefined Undefined net Plus/minus Zero Overflow Stabilization

weight

Fixed :0

Fixed :1

0: gross

non-

weight 0: positive

0: Normal

Fixed :0

zero

1: net 1: negative

1: overflow

weight

zero

0: unstable 1: Stable

Display value – 6-digit unsigned number, returned as “space space OFL

space” when weight positive (negative) overflows

Error codes — see Section 11.2.2 (Error Code description table)

Example instructions:

The upper computer sends command: 02 30 31 31 52 57 54 30 31 0D 0A

Correct response format: 02 30 31 31 52 57 54 40 41 30 30 33 37 35 33 33 36

0D 0A (Steady state, current main value is 3753)

Incorrect response format: 02 30 31 31 52 57 54 45 31 31 39 0D 0A (CRC

check error)

11.2.3.2 Calibrating zero

1) Calibrate zero with current weight (calibrated with weights)

Send command format:

STX Scale number Channel number C ZY CRC CR LF

Meter response format after correct reception:

STX Scale number

Channel number

C ZY O K CRC CR LF

Meter error after receiving response format: STX Scale Channel C ZY E number number

Error code

CRC CR LF

Among them:

Z — 1 bit, 5AH

Y — 1 bit, 59H

For example:

The upper computer sends the command: 02 30 31 31 43 5A 59 39 34 0D 0A

Correct response format: 02 30 31 31 43 5A 59 4F 4B 34 38 0D 0A

Error response format: 02 30 31 34 43 5A 59 45 36 32 30 0D 0A (channel

number error)

2) Enter the millivolt calibration zero in the schedule (no weight calibration)

Send command format: STX Scale Channel number number

C ZN Zero millivolts

CRC CR LF

Meter response format after correct reception:

STX Scale number

Channel number

C ZN O K CRC CR LF

Meter error after receiving response format:

STX Scale Channel C ZN E Error CRC CR LF

number number

code

Among them:

ZN – 2 places, 5AH 4EH

Zero millivolts – 6 digits, zero millivolts entered (4 decimal places fixed) Examples to illustrate: The upper computer sends the command: 02 30 31 31 43 5A 4E 30 30 32 36 31 30 38 30 0D 0A Correct response format: 02 30 31 31 43 5A 4E 4F 4B 33 37 0D 0A Incorrect response format: 02 30 31 31 43 5A 4E 45 34 30 34 0D 0A (Error writing data)

11.2.3.3 Gain calibration

1) Calibration with weights

Load a standard weight close to 80% of the maximum range on the scale

table (such as standard weight weight: 200) and by this method write the

weight of the standard weight to complete the gain calibration.

Format of send command:

STX Scale

Channel

number number

C GY Weight value

CRC CR LF

Meter response format after correct reception:

STX Scale number

Channel number

C GY O K CRC CR LF

Meter error after receiving response format: STX Scale Channel C GY E Error code
number number

CRC CR LF

Among them:

GY – 2 bits, 47H 59H

Weight weight value — 6 digits: The weight value of the standard weight

written

For example:

The upper computer sends the following command: 02 30 31 3143 47 59 30

30 30 32 30 30 36 35 0D 0A (Write the value: weight: 200)

Correct response format: 02 30 31 31 43 47 59 4F 4B 32 39 0D 0A

Incorrect response format: 02 30 31 35 43 47 59 45 36 30 32 0D 0A (channel number error)

11.2.3.4 ZeroClearing operation

Format of send command:

STX Scale number Channel number O CZ CRC CR LF

Meter response format after correct reception:

STX Scale number

Channel number

O CZ O K CRC CR LF

Meter error after receiving response format:

STX Scale Channel O CZ E Error CRC CR LF

number number

code

For example:

The upper computer sends the command: 02 30 31 31 4F 43 5A 38 34 0D 0A

Correct response format: 02 30 31 31 4F 43 5A 4F 4B 33 38 0D 0A

Incorrect response format: 02 30 31 31 4F 43 5A 45 35 30 36 0D 0A

(Operation cannot be performed)

11.2.3.5 CRC calculation

All the values preceding the check bit are added and converted to decimal data, then the last two bits are converted to ASCII (tens place first, ones place second). Illustrative, If you have the following frame of data:
02 30 31 31 4F 43 5A 38 34 0D 0A Add the sum from 02 to 5A: 180 (Hex), converted to decimal 384. From this, it can be calculated that the check codes for this data frame are 38 and 34. 11.3 tt Toledo protocol

Communication parameters Com– N1– N1.3 If tt protocol is selected,

the meter will send data in Toledo protocol continuous mode.

The format of Toledo continuous transmission is as follows:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

STX A B C Show weight 6 Six 30H checksums 0D
bits

Where: The starter is the standard ASII starter 02(STX)

The status word A is defined as follows:

01 0 1 0

11 0 0 1

00 1 1 1

Decimal point position x .x .xx .xxx .xxxx

Where: D3 D4 D6 is 0(unchanged)D5 is 1(unchanged)

The status word B is defined as follows:

D5 D4

Meter

Steady Overflow Symbols Gross/net weight

status

state

status

1 1: Stability 1: Overflow 1: negative 0: gross weight

fixed fixed fixed 0: unstable 0: Normal 0: positive 1: net weight

State C is standby state, temporarily useless, fixed output 20H.

11.4 Cb920 Protocol

Com–N1–N1.3 Select Cb920. In this mode, no command needs to be

sent to the meter. The meter will send data in Cb920 continuous mode.

The format of the data frame is as follows:

Status , Gross 0/1 Symbols Display Units CR LF

weight

values

Among them:

Status — 2 bits, OL(overflow) : 4FH 4CH; ST(stable) : 53H 54H;

US(unstable) : 55H 53H , — 1 bit, delimiter 2CH Gross weight — 2 bits, GS(gross weight): 47H 53H; NT(net weight):4EH 54H 0/1 — 1 bit, (30H/31H) alternately send. Symbols — 1 bit, 2BH (+), 2DH (–) Display value — 7 digits, including decimal point: Take the meter display
value Unit — 2 digits, kg:6B 67; g:20 67 ; t:20 74; lb:6C 62 ; CR – 1 bit, 0DH LF — 1 bit, 0AH Example: When the meter automatically sends the following frame of data
53 54 2C 47 53 31 2B 20 20 31 39 30 2E 31 20 67 0D 0A The current meter status is stable, gross weight, data value is positive, and current weight value is 190.1g.

11.5 rECont protocol

In this mode, there is no need to send any command to the weighing

display, and the display automatically sends the collected data to the supreme

machine.

Return data frame format description:

Status ,

GS/NT

Display

, +/-

Units CR LF

value

2 bits 2C 47 53/4E 54 2C 2B/2D 7 bits 6B 67 0D 0A

Where:

Status — 2 bits, OL(overflow):4FH 4CH; ST(stable):53H 54H;

US(unstable):55H 53H

Display value – 7 digits, including the decimal point, no decimal point for

the high space

For example: When the weighing display automatically sends the following frame of data:
53 54 2C 47 53 2C 2B 30 31 31 2E 31 32 30 6B 67 0D 0A You can see that the current status is stable, the data value is positive, and
the display value is 11.120kg

11.6 rEREAD protocol

The weighing display in this mode will only send the current data to the

supreme machine when it receives the command. Format of data frame sent

by the upper computer to the monitor:

Data

R E A D CR LF

Instructions 52H 45H 41H 44H 0DH 0AH

Upper computer sends command: 52 45 41 44 0D 0A

The data frame returned by instrument response is consistent with the

data frame returned by rECont protocol, refer to rECont return data frame

description.

Send clear command format: ZERO ON<CR><LF>

The upper computer sends the command 5A 45 52 4F 20 4F 4E 0D 0A

Return YES<CR><LF> or NO? <CR><LF>

Send marked zero command format: TARE ON<CR><LF>

The upper computer sends command: 54 41 52 45 20 4F 4E 0D 0A

Return YES<CR><LF> or NO? <CR><LF>

Send read ID number command format: GET ID<CR><LF>

The upper computer sends the command: 47 45 54 20 49 44 0D 0A

Return the ASCII code as a 6-digit ID number

11.7 PT650D Protocol

Communication parameters Com–N1– N1.3 When PT650D protocol is selected, the data frame format (N1.4) is automatically adjusted to 7-E-1

and the baud rate (N1.2) is automatically adjusted to 9600 (and only 2400, 4800, 9600 and 19200 are optional).
In this protocol mode, the data is output in ASCII code, and the data format is as follows: Return the data frame format description: No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
0 L , N T , Sign 1 2 3 4 . 5 7 k g CR LF Among them: No. 1,2 — State 1: OL(overflow):4F 4C; ST(stable display):53 54;
US(unstable display): 55 53 No.3 — “, “2C (HEX) No. 4,5 — State 2: GS(gross weight) : 47 53; NT(net weight) : 4E 54 No.6 — “, “2C (HEX) 7 — symbol: “+” (positive) : 2B; “-” (negative) : 2D No.8-14 — Weighing value: If there is No decimal point, output a space at
No.8; The overflow state reads 999999 No.15-16 — Unit: kg:6B 67; g:20 67 ; t:20 74; lb:6C 62 ; No.17-18 — Control code: CR: 0D; LF: 0A
11.8 Yh protocol
Communication parameters Com–N1–N1.3 When Yh protocol is selected, the data frame format (M1.4) is automatically adjusted to 8-n-1 and the baud rate (M1.2) is automatically adjusted to 1200. The communication interval time (M2.6) is automatically adjusted to 50ms.
Under this protocol, data is output in ASCII code, and each frame data is composed of 9 groups (including the decimal point). Data transmission first low and then high, each frame data between a group is the separator “=”, send data for the gross weight, such as the current gross weight 70.15, continuously
48

send 51.0700=51.0700…

For example: 123.9

Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8

Where:

The high digit is insufficient to fill 0, the decimal point is 1 byte, and

Bit8 is a negative sign “-” when it is negative.

That is, return: 3D 39 2E 33 32 31 30 30.

11.9 WI-125 Protocol

Communication parameters Com– N1– N1.3 When WI-125 is selected, the baud rate (N1.2) is automatically set to 9600 (and only 2400, 4800, 9600, and 19200 are optional). Mode, you do not need to send any command to the meter. The meter will send data in the following format.

Data frame format:

Starting State
character

Display weight value

Space Units Spaces CR LF

Among them:

Start character — 0x20

Status — 1 bit, G (gross weight): 47H; N (net weight):4EH

Display weight value – 8 digits, including plus or minus sign and decimal

point, the first sign is plus or minus sign, plus sign is not

displayed, positive number is 20H; — : 2DH;

Space — 0x20

Units — 2 digits, kg:6B 67; g:67 20; t: 74 20; lb:6C 62;

CR – 1 bit, 0DH

LF — 1 bit, 0AH

11.10 Modbus Protocol

11.10.1 MODBUS Function Code and Exception Code

Function code supported by instrument:

Function code 03 06
16
01 05

Name

Instructions

Read register Write a single
register
Write multiple registers
Read coil Write coil

Up to 125 registers can be read at a time Use this function code to write a single hold register. This meter this command only supports writing to double registers, the address must be aligned when writing, only part of the double register is not allowed to be written, and read only part is allowed when reading.
Note that this length is in bits

Note: This meter only supports the above MODBUS function codes, the

meter will not respond when doing other function codes to the meter.

MODBUS Exception code responds

Code 02 03 04
07

Name Illegal data address
Illegal data values
Slave machine failure
Unsuccessful programmin g request

Meaning For the purposes of this meter, this error code means that the received data address is not allowed.
The portion of data written and the allowable range.
An unrecoverable error occurs when the meter is attempting to perform the requested operation.
For the meter, the command received cannot be executed under the current conditions.

11.10.2 MODBUS Communication Address

Functional address

PLC address

Meaning

Instructions

The following is readable (read function code 0x03)

0000-0001.

40001-40002.

Weight status

Weight currently displayed, signed, integer type

0002

40003

Weight

bit

Instructions

0003

40004

0004

40005

Status flag D4-15 bit 1
D3
D2
D1
D0 Reserved
D15

D14 D13

Error code D12

Flag 1

(Alarm 2s

clears automatic-

D11

ally)

D10

D9 D8

Reserve, return 0
Overflow state, (abnormal weight or sensor)
Show weight minus sign, (show weight as negative
Zero point (weight in the range of 0±1/4 d)
Stable (sign of stability for weight judgment)
Calibration error (prompt for calibration when unstable and overflow)
AD fault (clear fault alarm as needed)
Reserved
Remote calibration was performed when forbidden
Calibration in the switch input calibration lock is effective, under protection
The previous weight point is not calibrated
Exceeding minimum resolution (less than 0.01uV per fraction)
Weight input exceeds maximum

0005

40006

D7 D6

D4 D3 D2

D12D15

D11

Error

Code Flag 2 (Alarm

D10

2s clears

automatic- D9

ally)

range
The weight input cannot be zero
The weight is calibrated to be less than zero or the previous standard point
Weight calibration sensor positive overflow
Negative sensor overflow during weight calibration
Weight calibration is unstable
Positive sensor overflow at zero calibration
Sensor negative overflow during zero calibration
Zero point calibration is unstable
Reserved
The net weight status does not allow peeling
Weight negative when peeling
Sensor is overflowing when peeling
Negative sensor overflow when peeling
Unstable when

0006

40007

0007-0009. 0010-0011. 0012-0013. 0014-0015.
0016-0017.

40008-40010 40011-40012 40013-40014 40015-40016
40017-40018

0018-0019. 40019-40020

0020-0021.
0022-0023. 0024-0029.

40021-40022
40023-40024 40025-40030

0030-0031. 40031-40032

peeling

The net weight

status cannot be

cleared to zero

Sensor is

overflowing when

zeroing

Sensor negative

overflow when

zeroing

Unstable when zeroing

Clear out of range

Unstable on poweron reset

Power on clear zero out of range

D4-15 Reserve, return 0

Process D3

status flag D1

bit 1

Preset point 4 state Preset point 3 state Preset point 2 state

Preset point 1 state

Reserved

Gross weight value (4-byte signed integer)

Net weight value (4 bytes signed integer)

Tare value (4 bytes signed integer

Display weight value (signed floating-point type)

Gross weight value (4-byte signed floatingpoint )

Net weight value (4 bytes signed floating point)

Tare value (4-byte signed floating point)

Reserved

Analog output millivolts (not including millivolts for analog calibration state), 3 decimal points

0032-0033.

40033-40034

Sensor absolute voltage value, integer, 4 decimal points

0034-0035.

40035-40036

Relative zero voltage value, integer type, 4 decimal points

0036-0037.

40037-40038

The filtered AD code is an integer ranging from 0 to 16777215

0038-0049. 40039-40050 Reserved

Basic parameter area, the following is readable and writable (read

function code 0x03, write function code 0x06)

Initial value: 0

Range: 0 to 100% (full

scale percentage)

0: disables the power-on

0050-0051.

40051-40052

PWR-On Zero Range

reset function 1-100: indicates that the system is powered on and

zeroed out based on the

maximum range of 1-100%

101: Restore the last zero
point before turn off.

0052-0053.

40053-40054

TrZero Range

Initial value: 0; Range: 0 to 99d

0054-0055. 40056-40057 Zero Range

Initial value: 20; Range: 0 to 99% (full scale percentage)

Initial value: 1; Range: 0 to

0056-0057. 40058-40059 STAB Range 99d, 0 indicates constant

stability

0058-0059.

40060-40061.

Digital filter level

Initial value: 4; Range: 0 to 9

0060-0061.

40062-40063

Steady-state filtering

Initial value: 0; Range: 0 to 99d

Initial value: 4; Range: 0 to

Corresponding to

0062-0063.

40064-40065

AD Sampling 0:30 seconds/time,

rate

1:60 seconds/time,

2:120 seconds/time,

3:240 seconds/time,

4:480 seconds/time,

5:960 seconds/time,

0064-0065.

40066-40067

Tare record function switch

Initial value: 0; Range: 0: OFF; 1: ON

0066-0067

40067-40068 TrZero Time

Initial value:1000 Range1~5000ms

0068-0069

40069-40070

STAB Timer

Initial value:1000 Range1~5000ms

0070-0071

40071-40072

Force Zero Threshold

Initial value:1Range 1~999999

0072-0073

40073-40074

Force Zero Timer

Initial value:3 Range1~20s

0074-0075

40075-40076

Force Zero Switch

Initial value:0Range0 OFF1ON

0076-0099 40077-40100 Reserved

Demarcate parameter area, the following is readable and writable (read function code 0x03, write function code 0x06)

0100-0101 40101-40102 Units

Initial value: 1; Range: 0:t, 1: kg, 2 g, 3: lb

0102-0103

40103-40104

Decimal point

Initial value: 0:0; Range: 0:0; 1:0.0; 2:0.00; And 3:0 000

0104-0105 40105-40106 Division,

Initial value: 1; Range: 1/2/5/10/20/50d

0106-0107

40107-40108

Maximum range

Initial value: 10000; The value ranges from 1 to 999999

0108-0109

40109-40110

Automatic zero calibration

Write: 1 for zero calibration, automatically obtain sensor voltage calibration zero; Read: is the current sensor voltage value

0110-0111

40112-40113

Manual zero calibration

0-150000(4 decimal points), Write: Write voltage value as zero voltage; Read: for the mV number of the current zero)

0112-0113 0114-0115 0116-0117 0118-0119 0120-0121 0122-0123 0124-0125

40114-40115 40116-40117 40118-40119 40120-40121 40121-40122 40123-40124 40125-40126

CAL Point1
CAL Point 2
CAL Point 3
CAL Point 4
CAL Point 5 Sensor sensitivity Total Capacity range

Write: write the weight value to the calibration weight point 1 calibration; Read: Get relative voltage value 1 when reading (sensor input – zero voltage)
Write: write the weight value to the calibration weight point 2 calibration; Read: get the relative voltage value 2 when reading (sensor input voltage at standard point 1)
Write: write the weight value to the calibration weight point 3 calibration; Read: get the relative voltage value 2 when reading (sensor input voltage at mark point 2)
Write: write weight value to the calibration weight point 4 calibration; Read: get relative voltage value 2 when reading (sensor input – voltage at standard point 3)
Write: Write the weight value to the calibration weight point 5 calibration, Read: get the relative voltage value 2 when reading (sensor input voltage at point 4)
Write: Use the sensitivity value of the sensor; Read: Sensitivity value set last time (4 decimal places)
Enter the sum of all sensor ranges

0126-0127

40127-40128 Use T-CAL

0: Turn off the theoretical weight function and use the calibration data 1: Enable weight calculation using theoretical value

0128-0129

40129-40130

Calibration correction coefficient

Write coefficient to correct the calibration, fixed 5 decimal places

0130-0149. 40131-40150. Reserved

Apply parameter area, the following is readable and writable (read function code 0x03, write function code 0x06)

0150-0151 0152-0153 0154-0155

40151-40152 40153-40154 40155-40156

Input1 function Input 2 Function Input 3 Function

Parameters range: 0-11, 0- None, 1SP1; 2- SP 2; 3SP3; 4- SP4; 5Clear zero; 6Parameter reset; 7Tare/Clear Tare; 8Tare; 9- Clear Tare;

0156-0157 40157-40158 Input 4 Function

10- Calibration lock; 11- Print; 12Gross/ Net weight switch;

Initial value: 0

0157-0169 40158-40170 Reserved

0170-0171 0172-0173 0174-0175 0176-0177 0178-0179
0180-0181

40171-40172 40173-40174 40175-40176 40177-40178 40179-40180
40181-40182

Output 1 Function Output 2 Function Output 3 Function Output 4 Function Output 5 Function
Output 6 Function

Parameters range: 06, corresponding to: 0- None; 1- SP1; 2SP 2; 3- SP3; 4- SP4; 5- Stable; 6Overflow;
Initial value: 0

0182-0189 40183-4090 Reserved

Whether to judge

0190-0191

40191-40192

SP1 Whether to call the weight stability,

steady

parameter range:

0:OFF, no need to

0192-0193 0194-0195 0196-0177 0198-0199 0200-0209

40193-40194

SP1 Minimum duration

40195-40196 SP1 Valid condition

40197-40198 SP1 Set value 1
40199-40200 SP1 sets the value 2 40201-40219 Reserved
58

judge the stability;

1:ON, need to judge

the stability; Initial

value: 0:OFF

Parameter range: 0-

999 (unit 0.1s);

Initial value: 0.2s

Parameters range: 09, 0- off, 1- weight

less than, 2- weight less than or equal to, 3- weight equal to, 4- weight greater

than or equal to, 5weight greater than, 6- weight not equal to, 7- weight not

between, 8- weight between, 9- external trigger; Initial value: 1

Compare value 1,

signed number,

range

-99999-

999999;

Initial

value: 0

Compare value 2,

signed number,

range

-99999-

999999,

initial

value: 0; Used when

two comparison

values are needed,

this value is greater

than the comparison

value of 1

0210-0211
0212-0213
0214-0215 0216-0217 0218-0219 0220-0229
0230-0231
0232-0233
0234-0235 0236-0237 0238-0239 0240-0249
0250-0251
0252-0253
0254-0255 0256-0257 0258-0259 0260-0299

40211-40212
40213-40214
40215-40216 40217-40218 40219-40220 40221-40230
40231-40232
40233-40234
40235-40236 40237-40238 40239-40240 40241-40250
40251-40252
40253-40254
40255-40256 40257-40258 40259-40260 40261-40300

SP2 Whether to call steady
SP2 Minimum duration
SP2 Valid condition SP2 Set value 1 SP2 Set value 2 Reserved
SP3 Whether to call steady
SP3 minimum duration
SP3 Valid condition SP3 Set value 1 SP3 Set value 2 Reserved
SP4 Whether to call steady
SP 4 minimum duration
SP4 Valid condition SP4 Set value 1 SP4 Set value 2 Reserved

Refer to the PLC address 4019140200 Preset point 1 function description
Refer to the PLC address 4019140200 Preset point 1 function description
Refer to the PLC address 4019140200 Preset Point 1 function description

Communication parameter setting area, the following contents are

readable and writable (read function code 0x03, write function code 0x06)

0300-0301. 40301-40302 RS485_1 Slave ID 0302-0303. 40303-40304 RS485_1 baud rate

Slave number of serial port 0; Range: 01-99
Initial value: 538400, range: 0-7; Corresponding to: 0-1200, 1-2400, 24800, 3-9600, 419200, 5-38400, 657600, 7-115200;

0304-0305. 40305-40306 RS485_1

Initial value: 0-

0306-0307.
0308-0309. 0310-0311.
0312-0313. 0314-0319. 0320-0321. 0322-0323. 0324-0325. 0326-0327. 0328-0329. 0330-0331.

40307-40308
40309-40310 40311-40312
40313-40314 40315-40320 40321-40322 40323-40324 40325-40326 40327-40328 40329-40330 40331-40332

Communication Protocol
RS485_1 data format
RS485_1 double word mode RS485_1 Continuous send interval Tollido Protocol whether to send checksums Reservations RS485_2 Slave ID RS485_2 baud rate RS485_2 Communication Protocol RS485_2 data format RS485_2 double word mode RS485_2 Continuous Send interval

Modbus RTU, range: 0-Modbus RTU, 1-rCont, 2-r-SP1, 3-tt, 4Cb920, 5-rE-Cont, 6rE-rEAd, 7-Pt650D, 8-YH, 9-Print(print), 10-WI-125 Initial value: 1 (8E1); Range: 0-8N1, 18E1, 2-8O1, 3-7E1, 4-7O1 Initial value :0 (ABCD) Range :0 :ABCD, 1:CD-AB.
Initial value: 20ms, range: 0-1000ms
Initial value: 0, range: 0:OFF, do not send, 1:ON, send
Refer to RS485_1 parameters

0332-0333. 0334-0339. 0340-0341. 0342-0343. 0344-0345. 0346-0347. 0348-0349. 0350-0351.
0352-0353. 0354-0359. 0360-0361.
0362-0363.

40333-40334 40335-40340 40341-40342 40343-40344 40345-40346 40347-40348 40349-40350 40351-40352
40353-40354 40355-40360 40361-40362
40363-40364

Tollido Protocol whether to send checksums Reservations RS232 Slave ID RS232 baud rate RS232 Communication Protocol RS232 data format RS232 double word mode RS232 Continuous send interval Tollido protocol whether to send checksums reserve
Network port communication mode
Network port double word mode

Refer to RS485_1 parameters
The protocols are 0: Modbus/TCP, 1: GM-Cont/TCP For standard network ports: 0AB-CD, 1-CD-AB This parameter can be set when the communication mode is 0:

0364-0365.
0366-0367. 0368-0375. 0376-0377. 0378-0379. 0380-0389. 0390-0391.

40365-40366
40367-40368 40369-40376 40377-40378 40379-40380 40381-40390 40391-40392

Network port sending interval
Port Indicates the local port number
Network port local IP segment
Data Type Write switch reserve Print language

Modbus/TCP For standard network ports, you can set: Communication mode: 1: GMCont/TCP. This parameter is used to set the interval for continuous transmission. Initial value: 20ms, range 01000ms Initial value: 502, range: 0-65535, set the network communication port number Initial value: 192.168.000.100, part 1 to Part 4 IP in order Range: 0-2, 0-int wt- integer weight, 1-flo wt- floating point weight; Default: 1
0-OFF, 1-ON
Range: 0: CHnChinese 1: EnEnglish; Initial value: En- English

0392-0393. 40393-40394 Print Content

Initial value: 0shows weight; Range: 0-6, optional: 0- Show weight, 1- gross weight, 2- net weight, 3- Net weight + tare (two rows), 4- Gross weight + Net weight + Tare) (three rows)

0394-0395. 40395-40396 Print interval

Range: 0-99, number of lines per print interval; Initial value: 2

0396-0399. 40397-40400 Reservations

Analog calibration area address, readable and written (read function code 0x03, write function code 0x06)

0400-0401.

40401-40402

Enter/exit analog quantity calibration

Range: 0-2, write: 0: exit remote analog calibration state; 1: remote current calibration; 2: remote voltage calibration.

0402-0403. 0404-0405.

40403-40404 40405-40406

Current marker Point 1 digital code Current marker point 1 current value

Digital code range: 065535, write: Output current in real time according to DA code

0406-0407.

40407-40408

Current marker Point 2 digit code

written. Available only in current calibration

0408-0409. 0410-0411. 0412-0413. 0414-0415. 0416-0417. 0418-0419. 0420-0421. 0422-0423. 0424-0425. 0426-0427. 0428-0429. 0430-0431. 0432-0433.

40409-40410 40411-40412 40413-40414 40415-40416. 40417-40418. 40419-40420. 40421-40422. 40423-40424. 40425-40426. 40427-40428. 40429-40430. 40431-40432. 40433-40434.

Current marker point 2 current value Current marker Point 3 digit code Current marker point 3 current value Current marker Point 4 digit code Current marker point 4 current value Current marker point 5 digit code Current mark point 5 current value Voltage marker point 1 digit code Voltage Mark point 1 Voltage value Voltage marker point 2 digit code Voltage mark point 2 voltage value Voltage marker point 3 digit code Voltage mark point 3 Voltage value

mode. Current value range: 024000, write the measured current value (need to write DA code first, otherwise cannot be written), complete the current calibration of the corresponding point, then DA code and current value take effect at the same time. Available only in current calibration mode.
Range: 0-65535, Write: Output voltage in real time according to DA code written. Available only in voltage calibration mode. Range: 0-10000, write the measured voltage value (need to write DA code first, otherwise

0434-0435. 0436-0437. 0438-0439. 0440-0441. 0442-0459. 0460-0461.
0462-0463.
0464-0465.

40435-40436. 40437-40438. 40439-40440. 40441-40442. 40443-40460.

Voltage marker point 4 digit code Voltage mark point 4 voltage value Voltage marker point 5 digit code Voltage mark point 5 voltage value Reservations

40461-40462. Analog Type,

40463-40464.

Analog quantity minimum current/voltage

Zone Zero 40465-40466.
current/voltage

cannot be written), complete the voltage calibration of the corresponding point. Available only in voltage calibration mode.
Initial value: 0; Range: 0:4-20mA; 1:0-10V; 2: user defined current; 3: user-defined voltage Range 0-10000 or 0-24000, default 0. Valid for user defined current/voltage, otherwise the read is all 0, and the write is invalid Range 0-10000 or 0-24000, initial value 0. Valid for user defined current/voltage, both reads are 0, write is invalid

0466-0467.

40467-40468. Range current/voltage

Range 0-10000 or 0-24000, initial value: 24000/10000. Valid for user defined current/voltage, all reads are 0, write is invalid

0468-0469.

40469-40470.

Maximum flow/voltage analog output

Range: 0-10000 or 0-24000, initial value: 24000/10000. Valid for user defined current/voltage, all reads are 0, write is invalid

0470-0499. 40471-40500. Reserve

Function operation class address area (corresponding coil function), readwrite (read function code: 0x03; Write function code: 0x06)

0500-0501. 40501-40502. Mark zero

0502-0503. 0504-0505. 0506-0507.
0508-0509.

40503-40504. 40505-40506. 40507-40508.
40509-40510.

Zeroing Tare Clear Tare Gross/net weight switch

Write 1 Perform the corresponding operation Read all zeros

0510-0511. 40511-40512. print

0512-0519. 40513-40520. Reserve

0520-0521. 0522-0523.

40521-40522. 40523-40524.

Reset all parameters Calibration parameter

Write 1 Perform the corresponding reset

reset

operation

Apply parameter reset Read all zeros

0524-0525.

(in addition to 40525-40526.
calibration

parameters)

0526-0529. 40527-40530. Reservations

0530-0531.

Show the backlight 40531-40532.
level

Parameters range: 0-2, 0-low, 1-mid, 2-high, Default: 1

0532-0533.

40533-40534.

Net Weight Indicator Light definition (Definable communication)

Parameter range: 04, 0-serial port 1, 1-serial port 2, 2serial port 3, 3network port, 4Net weight, Default value: 4

0534-0535.

40535-40536.

Communication Indicator Light 1 Define

Parameters: 0-3. 0: serial port 1,1: serial port 2,2: serial port 3,3: network port. Default value: 0

0536-0537.

40537-40538.

Communication Indicator Light 2 Define

0538-0539. 40539-40540. Reservations

Parameters: 0-3. 0: serial port 1,1: serial port 2,2: serial port 3,3: network port. Default value: 3

I/O test parameters, (523x) Remote test switch can read and write when turned on, otherwise read only

0540-0541. 40541-40542. I/O test switch

Parameter range: 01, 0: exit I/O test mode, 1: enter serial port IO test mode, after the end of the test must be closed, the instrument can enter the normal state.

0542-0543. 0544-0545. 0546-0547.

40543-40544. 40545-40546. 40547-40548.

Input1 Test Input 2 Test Input 3 Test

0548-0549. 40549-40550. Input 4 Test

0550-0559. 40551-40560. Reservations

Reading 0 means no input, and reading 1 means there is input. Writing any value is invalid, (only valid in IO test mode)

0560-0561. 0562-0563. 0564-0565. 0566-0567. 0568-0569. 0570-0571.

40561-40562. 40563-40564. 40565-40566. 40567-40568. 40569-40570. 40571-40572.

Output 1 Test Output 2 Test Output 3 Tests Output 4 Tests Output 5 Tests Output 6 Tests

Range: 0-1, write: 0: off output, 1: On output (valid only in IO test mode), read: current IO port status, 0: off, 1: on

0572-0599. 40573-40600. reserve

Instrument system information area, read only area

10000

410001

Software version (high word)

10001

410002

Software version (low If read 10000, it is

word)

01.00.00 version

10002

410003

Compile time (years)

10003

410004

Compile time (month day)

10004-10016. 410005-410017. Meter serial number 13 characters

10017-10028. 410018-410029. Meter code 12 characters

10029

410030

Reserved

Meter model character 6 characters, GMT10030-10035. 410030-410036.
H2

10036-10099. 410037-410100. Reserved

10100-10105. 410101-410106. The meter’s MAC six-segment address,

10106-10119. 410107-410120. Reserve

10120

410121

Attach Board 01 Info

10121

410122

Calibration parameter remote editing

10122

410123

Remote editing of communication parameters (except calibration parameters)

10123-10199. 410124-410200. Reserve

Coil address

0000 0001 0002 0003
0004
0005

00001 00002 00003 00004
00005
00006

Mark zero Zeroing Tare Clear Tare Gross/net weight switch Print

The contents are
readable and
writable coils, Write ON to perform corresponding operations Read all zeros

0006-0009. 00003-00010. Reserved

0010 0011

00011 00012

Reset all parameters This area is written Calibration parameter only

0012
0013-0019. 0020 0021 0022 0023 0024-0029. 0030 0031 0032 0033 0034 0035 0036-0039. 0040 0041 0042
0043
0044-0049. 0050

00013
00014-00020. 00021 00022 00023 00024 00025-00030. 00031 00032 00033 00034 00035 00036 00037-00040. 00041 00042 00043
00044
00045-00050. 00051

reset Apply parameter reset (in addition to calibration parameters) Reservations Input 1 status Input 2 status Input 3 status Input 4 Status Reservations Output 1 status Output 2 status Output 3 status Output 4 status Output 5 status Output 6 status Reservations SP1 status SP2 state SP3 status
SP4 status
Reservations Calibrate parameter

Write ON to perform the reset operation Read all zeros
Read-only area Returns each input port status bit 0: invalid; 1 valid
Read-only area Return each outlet status bit 0: invalid; 1 valid
Read only parameter area, Returns each outlet status bit 0: invalid; 1 valid
Read-only, whether

0051 0052-0049.

00052 00053-00060.

remote editing Remote editing of communication parameters (except for calibration parameters)

to allow remote editing, 1: on, 0: off

Reservations

Chapter 12 Network Port Communication
GMT-H2 is configured with a network communication interface, which is connected with the RJ-45 crystal head to realize the communication with the upper computer or PLC.
If Modbus/TCP is used, the IP addresses of network ports must be set in communication parameters N4.5 to N4.8. If the IP address of the network port is 192.168.101.106, input 192 for N4.5, 168 for N4.6, 101 for N4.7, and 106 for N4.8; The port number is entered in N4.4.
If the green indicator on the network port slot is steady on, the network cable is connected properly. If the orange indicator is blinking, the network adapter is receiving network data. If the indicator is set to network port in SYS-t5.2 to t5.4 system parameters. NET/ COM1 on the front panel of the meter when Modbus network port communication is performed If the /COM2 indicator blinks, Modbus/TCP communication is normal. However, when Modbus communication is interrupted, the NET/ COM1/COM2 indicator is off.
See Chapter 11.10.2 Modbus Communication Address Table for the address table.
72

Bus Communications

13.1 PROFINET Communication
The GMT-H2 display has two Profinet-IO bus connection ports, Port1 and Port2, which can be connected to the PROFINET bus from the station as a Profinet-IO.
The instrument IP address can be set and viewed in communication parameters COM–N4–N4.5~N4.8; The MAC address can be viewed in system parameter SYS–t7. 13.1.1 IO Status
GMT-H2 provides 14-byte Input, 14-byte Output in two modules, through which the master station can read and control the state of the weighing display.

13.1.1.1 Lite version Parameter address

PN Loop parameter list

Offset

Parameter

Data

Parameter description

name

type

Weight, millivolts, and status parameters (Read only, I address)

Current

Weight currently displayed, data type displayed according to the data

0 display

DWord type selected by N4.10.

weight

Int: integer weight display; Float: floating point weight display;

D15: Heartbeat packet display,

switching between 0 and 1 at 1 Hz

Weight status

frequency

Word D14: Write status, 0: no error, 1:

flag bit

write error

D13: calibration status, 0: normal, 1:

calibration failure

D8-D12: Reserved D7: Error6 alarm status (current weight display is unstable when peeling),0 is invalid, 1 is valid D6: Error3 alarm state (when clearing zero, the current weight display is unstable),0 is invalid, 1 is valid D5: Error2 alarm state (when clearing zero, the current weight is out of the range of clearing zero),0 is invalid, 1 is valid D4: Gross/net weight status, 0 gross weight, 1 net weight

D3: The sign of the value shown by the weighing display, 0 positive, 1 negative D2: zero state of weighing display, 0 non-zero, 1 zero D1: weighing monitor overflow state, 0 normal, 1 overflow D0: The weighing monitor is in stable state, 0 is stable, 1 is unstable

Millivolts for Float
the sensor

4 bytes sensor millivolt data to read absolute millivolts

Read out 10
value

Dword

The master station requests the data returned by the meter, the value obtained according to the “request read address”.

Function operation (write, Q address only)

Function 0
operation

Byte1 Byte0

D0-D7: Reserved
D5-D7: Reserved D4: Mark zero D3: Gross net weight switch

The request

to write

value of the DWord

modbus

address

Input value DWord

The read

request of the modbus

DWord

address

PN acyclic parameter list

D2: Skin clearing D1: Remove the skin D0: Clear
Write value address. This parameter modify connect port module support MODBUS address range limit 51 to 300. 0:No write data. Input value to the request to write value of the modbus address Read addressNote: Can’t read DWord address,when write an odd address This PARA modify connect port module support

Parameter name

Parameter description

PWR-On Zero Range
TrZero Range

Range setting for power-on zeroing 0: Disables the power-on automatic zeroclearing function 1-100: Power on. Clear zero based on the maximum range 1-100%. 101: Restore the last zero before the key
Range: 0-99; Initial value: 0

Zero Range

Range: 0-99; Initial value: 20

STAB Range

Range: 0-99; Initial value: 1

Digital filter level Steady-state filtering level AD sampling rat Tare record function switch
Units

Range: 0-9; Initial value: 4 Range: 0-9; Initial value: 0 Range: 0-5; Initial value: 4 Range: OFF, ON; Initial value: OFF Range: t, kg, g, lb; Initial value: kg

Decimal point

Range: 0-4; Initial value: 0

Minimum indexing value
Maximum range

Range: 1, 2, 5, 10, 20, 50; Initial value: 1
Range: 1- min indexing *999999; Initial value: 10000

13.1.2 Device Description file GSD

The device description file and connection method of GMT-H2 can be

downloaded from the website of Shenzhen Germain Technology Co., LTD.

(www.szgmt.com).

13.2 EtherNet-IP Communication

The IP address of the instrument can be set and viewed in the communication parameters COM–N4–N4.5~N4.8. The setting takes effect only after being powered on again. MAC address can be viewed in SYS–t7 system parameter. 13.2.1 IO Status
GMT-H2 Lite provides a 7-byte INPUT, 7-byte OUTPUT from which the master station can read and control the state of the weigh display.

13.2.1.1 Parameter address of the Compact version

EIP loop parameter list

Offset

Parameter

name

Current display 0
weight

Weight Status

flag bit (Read

only)

Data type DWord
Word

Parameter description
Weight currently displayed, data type displayed according to the data type selected by N4.10. Int: integer weight display; Float: floating point weight display; D15: Heartbeat packet display, switching between 0 and 1 at 1 Hz frequency D14: Write status, 0: no error, 1:

write error D13: calibration status, 0: normal, 1: calibration failure D8-D12: Reserved D7: Error6 alarm status (current weight display is unstable when peeling),0 is invalid, 1 is valid D6: Error3 alarm state (when clearing zero, the current weight display is unstable),0 is invalid, 1 is valid

D5: Error2 alarm state (when clearing zero, the current weight is out of the range of clearing zero),0 is invalid, 1 is valid D4: Gross weight/net weight status, 0 gross weight, 1 net weight D3: The sign of the value shown by the weighing display, 0 positive, 1 negative D2: Zero state of weighing display, 0 non-zero, 1 zero D1: weighing monitor overflow state, 0 normal, 1 overflow D0: The weighing monitor is in stable state, 0 is stable, 1 is unstable

Millivolts for the sensor

Float

4 bytes sensor millivolt data to read absolute millivolts

Read out 5
values

Dword

The master station requests the data returned by the meter, the value obtained according to the “request read address”.

Function operation (write, Q address only)

Byte1 D0-D7: Reserved

D5-D7: Reserved

Function 0
operation

Byte0

D4: Mark zero D3: Gross net weight switch D2: Skin clearing

D1: Remove the skin

D0: Clear

The request Write value address. This to write parameter modify connect port

value of the DWord module support MODBUS modbus address address range limit 51 to 300. 0:No write data.

Input value DWord

Input value to the request to write value of the modbus address

The read request of the modbus DWord Read addressNote: Can’t read DWord address,when write an odd address address This parameter modify connect port module support

Note: The EIP acyclic parameter can refer to the acyclic parameter list of PN

13.2.2 EDS Device description file

The Equipment description document and connection methods for GMT-H2 can be downloaded from the website of Shenzhen Geman Technology Co., LTD. (www.szgmt.com).

Error and Alarm Information

Error Data or options or password Settings are incorrect, check the corresponding parameter input range. Error1 Net weight does not allow zero clearing Error2 When Zeroing, the current weight is out of the clear range. Error3 When Zeroing, the current weight display (system) is unstable. Error4 Enter the wrong password three times. Error5 Current weight overflow when peeling. Error6 When Tare ,The current weight display (system) is unstable. Error7 Defines the calibration lock, wait for this signal to be valid. Error8 When Tare , the weight is negative Error9 The net weight status does not allow peeling. OFL Weight positive overflow. -OFL Weight negative overflow. ADERR The AD is faulty. UNDER Negative sensor overflow. OVER Positive sensor overflow.

Chapter 15 Meter Models Custom Features

After the instrument is powered on, the instrument custom model is displayed. By performing related operations on the meter, you can customize the model content displayed on the meter. The steps are as follows:

1. After power on, press the key 8 times in the main display interface, the instrument will display SYS, press the key, enter to t1 parameter, combine the key and enter the t8.1 display instrument model, in the current interface, press the button for bit selection, press the key to adjust a character value, press the key to save after the change, the instrument will display the changed model when startup; If no modification is made to the instrument model, the instrument will default to GMT-H2 (Note: Instrument model will not be reset).

2. After entering the model customization screen, you can customize the 6-bit main display characters. You can select a certain character by using the MODE key. The OPTION key can be used to adjust the characters, the sequence of character change is space, -, 0~9, A~Z (according to the display character comparison table, as shown in the appendix) the 38 characters, press

Enter key to save the current modified value.
Display the character comparison table:

Documents / Resources

GENERAL MEASURE GMT-H2 Weigh Transmitter [pdf] Instruction Manual
GMT-H2 Weigh Transmitter, GMT-H2, Weigh Transmitter, Transmitter

References

User Manual

GENERAL MEASURE GMT-H2 Weigh Transmitter

Product Usage Instructions

FAQ

General Description

Installation and Wiring

Menu overview

Basic Parameters

Calibration

Analog Parameters

Communication Parameters

Presetting Point Parameters

IO Definition

System Maintenance

Serial Communication

Bus Communications

Error and Alarm Information

Documents / Resources

References

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