RICE LAKE 1280 Indicator Programmable Weight Indicator and Controller Installation Guide

Follow the installation instructions provided in the manual to
install the Modbus TCP Interface inside the indicator enclosure.
Ensure the indicator is placed in a suitable NEMA Type 4X stainless
steel enclosure for washdown environments.

2. Configuring the Network Settings

Refer to section 3.0 of the manual for detailed instructions on
configuring the network settings for the Modbus TCP Interface.

3. Commands

Section 4.0 provides information on output data format, byte
swapping, and command descriptions. Familiarize yourself with these
commands to effectively communicate with the indicator using the
Modbus TCP Interface.

FAQ

Q: Can the Modbus TCP Interface be used with any PLC or primary
controller?

A: Yes, the Modbus TCP Interface can be used with most PLCs or
primary controllers that support Modbus communication protocol.

Q: Is it necessary to use a NEMA Type 4X stainless steel
enclosure for the indicator?

A: It is recommended to use a NEMA Type 4X stainless steel
enclosure, especially in washdown environments, to ensure the
longevity and protection of the indicator and the Modbus TCP
Interface.

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Modbus® TCP Interface
Interface for the 1280 Indicator
Installation and Programming Manual

February 29, 2024

PN 156782 Rev G

© Rice Lake Weighing Systems. All rights reserved.
Rice Lake Weighing Systems® is a registered trademark of Rice Lake Weighing Systems.
All other brand or product names within this publication are trademarks or registered trademarks of their respective companies.
All information contained within this publication is, to the best of our knowledge, complete and accurate at the time of publication. Rice Lake Weighing Systems reserves the right to make changes to the technology, features, specifications and design of the equipment without notice.
The most current version of this publication, software, firmware and all other product updates can be found on our website:
www.ricelake.com

Revision History

This section tracks and describes manual revisions for awareness of major updates.

Revision G

Date February 29, 2024

Description
Established revision history; Added first and second generation option card details

Table i. Revision Letter History

Technical training seminars are available through Rice Lake Weighing Systems. Course descriptions and dates can be viewed at www.ricelake.com/training or obtained by calling 715-234-9171 and asking for the training department.

1280 Modbus TCP Interface
Contents
1.0 Introduction …………………………………………………………………….. 5
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 FCC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Installation ………………………………………………………………………. 6
2.1 Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.0 Configuring the Network Settings …………………………………… 10
4.0 Commands…………………………………………………………………….. 12
4.1 Output Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.1.1 BYTE Swapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Input Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2.1 Command Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.2.2 Status Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.2.3 Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.2.4 Setting a Float Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.2.5 Reading a Float Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3 Command Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.0 Specifications ………………………………………………………………… 28

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1.0 Introduction

Introduction

The Modbus TCP Interface can be used to read and write data to the indicator using a PLC or another primary controller. This manual provides information for installation and use of this product. The Modbus TCP Interface is installed inside the indicator enclosure and installation in NEMA Type 4X stainless steel enclosures permits use in washdown environments. See the indicator technical manual for additional installation information and detailed descriptions of indicator functions.
WARNING: Some procedures described in this manual require work inside the indicator enclosure. These procedures are to be performed by qualified service personnel only.
i Manuals and additional resources are available on the Rice Lake Weighing Systems
website at www.ricelake.com Warranty information can be found on the website at www.ricelake.com/warranties

1.1 Overview
The primary controller communicates by sending commands through the Modbus TCP Interface to the indicator. The indicator responds to the primary controller with data and status depending on the command sent. These actions are referred to as polled response.
1.2 FCC Compliance
United States
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
Canada
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la Class A prescites dans le Règlement sur le brouillage radioélectrique edicté par le ministère des Communications du Canada.

1280 Modbus TCP Interface
2.0 Installation
Modbus TCP Interface specific functions are provided by a Modbus TCP module. The module plugs into an open slot on the CPU board and provides power and access from the indicator bus to the module.
IMPORTANT: See the indicator technical manual for installation instructions.
The interface option cards of the 1280 Enterprise Series indicator share the same carrier board (PN 164756). The carrier board plugs into an open slot on the CPU board and provides power and access from the indicator bus to the module. 1280 interface option card kits are shipped with the module and carrier board already assembled.

Carrier Board

Carrier Board with Module

Figure 2-1. Interface Option Card Kit

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Installation

Push Button

Figure 2-2. Second Generation (left) and First Generation (right) Boards

Card Generation Identifying Characteristics

First Generation Second Generation

green board blue board, push button

Table 2-1. Option Card Identification Information

NOTE: Only second generation cards (blue boards) can have the firmware updated. See the 1280 Enterprise Technical Manual (PN 167659) for further instructions.
The indicator automatically recognizes all installed option cards when the unit is powered on. No hardware-specific configuration is required to identify an installed card to the system.
WARNING: Always disconnect the power before opening an enclosure. Interface option cards are not hot swappable. CAUTION: A grounding wrist strap must be worn to protect components from electrostatic discharge (ESD) when working inside an enclosure or controller assembly.

1280 Modbus TCP Interface
2.1 Installation Instructions
1. Disconnect power to the indicator. 2. See the 1280 technical manual (PN 167659) to gain access to the Controller
Assembly box for the specific model. 3. Remove the screw securing the intended slot cover plate of the Controller Assembly
box, set the slot cover plate aside and save the screw. 4. Mount the faceplate on module and slide module board assembly into place within
the slot. 5. Secure the faceplate and module board assembly into place with the previously
removed screw. NOTE: Interface cable is routed through a cord grip in Universal and Wall mount enclosures. Alternately, a chassis mounted connect can be installed in the enclosure. 6. See 1280 technical manual to reinstall the Controller Assembly box.

Slot Cover Plate Figure 2-3. Existing Cover Plate Removal

Installed Option Card

Figure 2-4. Installed Interface Option Card

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Installation
2.2 LED Status Indicators
An LED array on the Modbus TCP Interface module provides status information for troubleshooting.

Figure 2-5. Modbus TCP Status LED Module NOTE: A test sequence is performed on this LED 1 and 2 during startup.
Network Status LED (Item 1)

LED State

Description

Off Green Green, Flashing Red Red, Flashing

No power or no IP address Module is in Process Active or Idle state Waiting for connections Duplicate IP address, FATAL event Process Active Timeout

Table 2-2. Network Status LED

Module Status LED (Item 2)

LED State
Off Green Red Red, Flashing

Description No power Normal operation Major fault; Module is in state EXCEPTION (or FATAL event) Minor fault in diagnostic object; IP conflict
Table 2-3. Module Status LED

Link/Activity LED (Item 3)

LED State

Description

Off

No link, no activity

Green

Link established

Green, Flickering Activity

Table 2-4. Link/Activity LED

RJ45 Port (Item 4)
The Modbus TCP interface supports 10/100Mbit, full or half duplex operation.

1280 Modbus TCP Interface
3.0 Configuring the Network Settings
Configuring the network setting is done using a web browser or the Anybus IP configuration utility. To set the network settings using a web browser.
1. Open a browser and type the IP address of the card. 2. Change any or all settings. 3. Click on Store settings. To set the network settings using the Anybus IP Configuration program. 1. Open the configuration program.
NOTE: The configuration program can be found at the following link: https://www.ricelake.com/media/rbuicpx3/tb_us_197149_ipconfig.pdf 2. Click on Scan button if the device does not display in the menu. 3. Double click on the device. A menu is displayed with the current network settings. 4. Change any or all settings. 5. Click on the Set button.

Figure 3-1. Modbus TCP Interface Display in a Web Browser

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Configuring the Network Settings

Figure 3-2. Modbus TCP Configuration Menu in a Web Browser

1280 Modbus TCP Interface
4.0 Commands

Commands are used by the primary device to send and receive data from the interface as integer or floating-point data. The primary sends eight bytes in the output format to write commands to the indicator and reads eight bytes in the input format to read data from the indicator.
Decimal Point Handling
Integer commands return no decimal point information to the primary.
For example, a value of 750.1 displayed on the indicator is returned to the primary as 7501. Floating point commands support decimal point information with no special handling.
4.1 Output Data Format
To perform a command, the primary uses the output command format to send four 16-bit words to the interface. These four words contain the command and the necessary parameters to execute it. The output command format is shown in Table 4-1.

Byte
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7

V 1.02 and Earlier V 1.03 and Later Description

40005

40001

Command Number

40006

40002

Parameter

40007

40003

Value (MSW)

40008

40004

Value (LSW)

Table 4-1. 1280 Output Data Format

NOTE:See Section 4.1.1 on page 15 for BYTE swapping parameters. A lockout feature, incorporated into the indicator receive mechanism, looks for change in the output format data to prevent inundation by the same command. See affected commands noted in Table 4-2 on page 13 with an (*). Repeated commands must be separated by any other valid command/parameter/value combination.
Parameter Value
In communication with a multi-scale indicator, the scale number is sent in the second word of the output command format. Zero (0) represents the current scale. Certain commands require a parameter other than a scale number, such as a slot number, setpoint number, or other selection parameter. See the command descriptions in Section 4.3 on page 19 for specific command requirements.

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Commands
Value
The third and fourth words of the output format are used to pass value data on certain commands. Values entered in these words are treated as unsigned long integers or floating-point values, depending on the command.
Command Number
The number representing the indicator command is sent in the first word. Table 4-2 lists the commands that can be specified for indicators. Some commands may not be available on all indicators.

Decimal
0 1 2 3 9 10 11 12 13 14 16 17 18 19 20 21 22 23 32 33 34 37 38 39 95 96 97 98 99

Hex

Command

0x000 0x001 0x002 0x003 0x009 0x00A 0x00B 0x00C 0x00D 0x00E 0x010 0x011 0x012 0x013 0x014 0x015 0x016 0x017 0x020 0x021 0x022 0x025 0x026 0x027 0x05F 0x060 0x061 0x062 0x063

Return Status and Weight (integer) Display Channel Display Gross Weight Display Net Weight Gross/Net key press (toggle) Zero* Display Tare* Enter Tare* Acquire Tare* Clear Tare* Primary Units Secondary Units Tertiary Units Units key press (toggle units) Print Request Display Accumulator Clear Accumulator Push Weight to Accumulator Return Gross (integer) Return Net (integer) Return Tare (integer) Return Current Display (integer) Return Accumulator (integer) Return Rate of Change (integer) Set Batching State Batch Start Batch Pause Batch Reset Batch Status

Table 4-2. Remote Commands

1280 Modbus TCP Interface

Decimal Hex

Command

112

0x070 Lock Indicator Front Panel

113

0x071 Unlock Indicator Front Panel

114

0x072 Set Digital Output ON

115

0x073 Set Digital Output OFF

116

0x074 Read Digital I/O Status

128

0x80 Enable Bus Command Handler

253

0x0FD No operation

254

0x0FE Reset Indicator

256

0x100 Return Status and Weight (float)

268

0x10C Enter Tare (float)

288

0x120 Read Gross (float)

289

0x121 Read Net (float)

290

0x122 Read Tare (float)

293

0x125 Read Current Display (float)

294

0x126 Read Accumulator (float)

295

0x127 Read Rate of change (float)

304

0x130 Set Setpoint Value (float)

305

0x131 Set Setpoint Hysteresis (float)

306

0x132 Set Setpoint Bandwidth (float)

307

0x133 Set Setpoint Preact (float)

320

0x140 Read Setpoint Value (float)

321

0x141 Read Setpoint Hysteresis (float)

322

0x142 Read Setpoint Bandwidth (float)

323

0x143 Read Setpoint Preact (float)

Table 4-2. Remote Commands (Continued)

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Commands
4.1.1 BYTE Swapping
NOTE: See the Ports Menu in the indicator manual.
The indicator sends and receives data in integer format. The standard format is as follows for all input and output values:
High BYTE Low BYTE If the indicator FLDBUS/SWAP parameter is set to YES, then the BYTE order changes to:
Low BYTE High BYTE Example: If the weight on the scale reads 10 lbs and a value of 2560 is displayed in the PLC, either swap the BYTES in the PLC or change the SWAP parameter to YES.
4.2 Input Data Format
The interface returns data and status information to the primary as four 16-bit words in response to a command. The input command format is shown in Table 4-3. The value type can be set for commands not specifying integer or floating point data by sending the command 0x000 to specify integer data, or sending command 0x100 to specify floating-point data. The value type is returned in the status word (bit 14) of the input format.
IMPORTANT: The register values for Carrier Board (PN 153093) changed with V 1.03 as shown in Table 4-3.

Byte V 1.02 and Earlier V 1.03 and Later Description

Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7

40001 40002 40003 40004

40257 40258 40259 40260

Command Number Status Value (MSW) Value (LSW)

Table 4-3. 1280 Input Data Format

See Section 4.1.1 for BYTE swapping parameters.

1280 Modbus TCP Interface
4.2.1 Command Number
The first word echoes the command number. If the command fails or is not recognized, the negative of the command number is returned to signal the error.
4.2.2 Status Data
Indicator status data is returned in the second word (Table 4-4). Batch commands return batch status in place of the low byte (Table 4-5 on page 17). Setpoint commands return batch status in the low byte of the status word and the setpoint number in the high byte.

Indicator Status Data

Word 2 Bit

Value=0

Value=1

Error **

(Bit-0 Errors on page 17)

Tare not entered

Not center of zero

No error
Tare entered Center of zero

Weight invalid

Weight OK

Standstill

In motion

Primary units

Other units

Tare not acquired

Tare acquired

Gross weight

Net weight

Channel number

NOTE: Least significant bit first.

Not used

Integer data

Floating point data

Positive weight

Negative weight

This error condition does not necessarily mean the weight being reported is invalid. Refer to the “Weight invalid” bit.

Table 4-4. Indicator Status Data Format

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Bit-0 Errors
· PLC command failed to execute · No configuration has taken place · Scale parameter is out of range · Print error has occurred · Load error has occurred · Memory error has occurred · Analog to digital converter error · Tare error · Scale over range error · Scale under range error · Non-recoverable configuration store error · Indicator in configuration mode

Commands

Batch Function Status Data

Word 2 Bit

Value=0

00 Digital input 4 OFF

01 Digital input 3 OFF

02 Digital input 2 OFF

03 Digital input 1 OFF

Batch not paused

Batch not running

Batch not stopped

Alarm OFF

Setpoint number

Not used

Integer data

Positive weight

Value=1 Digital input 4 ON Digital input 3 ON Digital input 2 ON Digital input 1 ON Batch paused Batch running Batch stopped Alarm ON
Floating point data Negative weight

Table 4-5. Batch Function Status Data Format

1280 Modbus TCP Interface
4.2.3 Value
Weight data is returned to the primary in the third and fourth words of the input command format, depending on the command and the value type. The weight data returned is the displayed weight after the command is executed, unless the command specifies otherwise. A negative value is returned in the two’s compliment format.
4.2.4 Setting a Float Value
Setting a float value in a setpoint requires the value to be sent in two separate integer values. Most PLCs have a mechanism to take a float value and separate it into to integer values.
Example: The following must be sent in the output words to set the value of Setpoint #1 to 10000.
Command word = 304 Parameter word = 1 MSW = 17948 LSW = 16384
4.2.5 Reading a Float Value
When a float value is read it will be returned in two integers representing the float value. The PLC must combine MSW and LSW integer values back into a float value.
Example: The following is returned in the input words if the weight on the scale is 800.5.
Command Word = 288 Status word = Scale status MSW= 17480 LSW = 8192

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Commands
4.3 Command Descriptions
Return Status and Current Weight as Integer
Command: 0, 0x000 Parameter: Scale number Command 0 returns the status and gross or net scale weight (per scale configuration) of the specified scale in integer format, without changing the display. This command also causes the format-independent commands to return a value in the integer format.
Display Channel
Command: 1, 0x001 Parameter: Scale number Command 1 causes the weight of the specified scale to be displayed and returned in its current mode and format.
Display Gross Weight
Command: 2, 0x002 Parameter: Scale number Command 2 causes the gross weight of the specified scale to be displayed and returned.
Display Net Weight
Command: 3, 0x003 Parameter: Scale number Command 3 causes the net weight of the specified scale to be displayed and returned.
Gross/Net Key Press (Toggle Mode)
Command: 9, 0x009 Parameter: Scale number Command 9 toggles between gross and net mode (and count mode, if enabled). If a scale number other than 0 is specified, the action will not be seen until the specified scale is displayed.
Zero
Command: 10, 0x00A Command 10 performs a ZERO operation on the current scale.
Display Tare
Command: 11, 0x00B Parameter: Scale number Command 11 causes the tare weight on the specified scale to be displayed. If a scale number other than 0 is specified, the indicator first causes the specified scale to be displayed. Display returns to the prior mode after checking the indicator.

1280 Modbus TCP Interface
Enter Tare (Integer)
Command: 12, 0x00C Parameter: Scale number Value: Tare weight Command 12 enters a tare for the scale selected. Tare data must be in integer format. The indicator continues to return weight data in the current mode for the specified scale.
Acquire Tare (Simulate TARE Key Press)
Command: 13, 0x00D Parameter: Scale number Command 13 acquires a tare based on the weight currently on the specified scale. The indicator continues to return weight data in the current mode for the specified scale.
Clear Tare
Command: 14, 0x00E Parameter: Scale number Command 14 clears the tare for the specified scale. The indicator continues to return weight data in the current mode for the specified scale.
Primary Units
Command: 16, 0x010 Parameter: Scale number Command 16 switches the current format of the specified scale to the primary units configured for that scale.
Secondary Units
Command: 17, 0x011 Parameter: Scale number Command 17 switches the current format of the specified scale to the secondary units configured for that scale.
Tertiary Units
Command: 18, 0x012 Parameter: Scale number Command 18 switches the current format of the specified scale to the tertiary units configured for that scale, if available.
Units Key Press (Toggle Units)
Command: 19, 0x013 Parameter: Scale number Command 19 toggles between primary and secondary units of the specified scale.

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Commands
Print Request
Command: 20, 0x014 Parameter: Scale number Command 20 causes the indicator to execute a print command for the current scale.
Display Accumulator
Command: 21, 0x015 Parameter: Scale number Command 21 causes the value of the accumulator for the specified scale to be displayed and returned. This command is valid only when the accumulator for the specified scale is enabled.
Clear Accumulator
Command: 22, 0x016 Parameter: Scale number Command 22 clears the value of the accumulator for the specified scale. This command is valid only when the accumulator for the specified scale is enabled.
Push Weight to Accumulator
Command: 23, 0x017 Parameter: Scale number Command 23 adds the net weight on the specified scale to the value of the accumulator for the specified scale. The scale must return to net zero between accumulations. The indicator returns the accumulated weight data for the specified scale. This command is valid only when the accumulator for the specified scale is enabled.
Return Gross as Integer
Command: 32, 0x020 Parameter: Scale number Command 32 returns the gross weight value for the specified scale as an integer.
Return Net as Integer
Command: 33, 0x021 Parameter: Scale number Command 33 returns the net weight value for the specified scale as an integer.
Return Tare as Integer
Command: 34, 0x022 Parameter: Scale number Command 34 returns the tare weight value for the specified scale as an integer.

1280 Modbus TCP Interface
Return Current Display as Integer
Command: 37, 0x025 Parameter: Scale number Command 37 returns the weight value for the specified scale as currently displayed. This may include gross, net, tare, or accumulator values, as enabled.
Return Accumulator as Integer
Command: 38, 0x026 Parameter: Scale number Command 38 returns the accumulator value for the specified scale. This command is valid only when the accumulator for the specified scale is enabled.
Return Rate of Change as Integer
Command: 39, 0x027 Parameter: Scale number Command 39 returns the current rate of change value for the specified scale. This command is valid only for the 1280.
Set Batching State
Command: 95, 0x05F Parameter: State (0 = off; 1 = auto; 2 = manual) Command 95 sets the batching (BATCHNG) parameter. Indicator status is returned with the current weight for the last scale specified.
Batch Start
Command: 96, 0x060 Parameter: Scale number Command 96 starts a batch program from the current step after a stop, pause, or reset. Batch status is returned with the current weight for the specified scale.
Batch Pause
Command: 97, 0x061 Parameter: Scale number Command 97 pauses a batch program at the current step. Batch status is returned with the current weight for the specified scale.
Batch Reset
Command: 98, 0x062 Parameter: Scale number Command 98 stops a batch program and resets it to the first batch step. Batch status is returned with the current weight for the specified scale.

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Commands
Batch Status
Command: 99, 0x063 Parameter: Scale number Command 99 returns the status of a batch. Batch status is returned with the current weight for the specified scale.
Lock Front Panel of Indicator
Command: 112, 0x070 Parameter: Scale number Command 112 disables all the keys on the front panel of the indicator. Indicator status is returned with the current weight for the specified scale.
Unlock Front Panel of Indicator
Command: 113, 0x071 Parameter: Scale number Command 113 re-enables all the keys on the front panel of the indicator. Indicator status is returned with the current weight for the specified scale.
Set Digital Output ON
Command: 114, 0x072 Parameter: Slot number Value: Bit number Command 114 sets the specified digital output ON (active). Use slot number 0 for onboard digital outputs. Indicator status is returned with the current weight for the last scale specified.
Set Digital Output OFF
Command: 115, 0x073 Parameter: Slot number Value: Bit number Command 115 sets the specified digital output OFF (inactive). Use slot number 0 for onboard digital outputs. Indicator status is returned with the current weight for the last scale specified.
Read Digital I/O
Command: 116, 0x074 Parameter: Slot number Command 116 returns the status for all digital I/O in the specified slot in words 3 and 4. Use slot number 0 for onboard digital I/O. Indicator status is returned in the status area for the last scale specified.

1280 Modbus TCP Interface
Enable Bus Command Handler
Command: 128, 0x80 Parameter: None Command 128 enables the bus command handler in a user program. While this handler is enabled, all other PLC commands are disabled.
No Operation
Command: 253, 0x0FD Parameter: Scale number Command 253 provides a command to use between operations, as necessary, without causing the indicator to perform any action. Indicator status and weight for the specified scale is returned.
Reset Indicator
Command: 254, 0x0FE Parameter: None Command 254 provides a command to remotely reset the indicator. No data is returned.
Return Status and Current Weight as Float
Command: 256, 0x100 Parameter: Scale number Command 256 returns the status and weight of the specified scale in floating-point format, without changing the display. This command also causes the format-independent commands to return a value in the floating-point format. Returns current weight at a floating-point format.
Enter Tare as Float
Command: 268, 0x10C Parameter: Scale number Value: Tare weight Command 268 enters a tare for the scale selected in floating-point format. The indicator returns the tare weight as taken, or 0 for no tare.
Read Gross Weight as Float
Command: 288, 0x120 Parameter: Scale number Command 288 returns the gross weight value for the specified scale in floating-point format.
Read Net Weight as Float
Command: 289, 0x121 Parameter: Scale number Command 289 returns the net weight value for the specified scale in floating-point format.

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Commands
Read Tare as Float
Command: 290, 0x122 Parameter: Scale number Command 290 returns the tare weight value for the specified scale in floating-point format.
Read Current Display as Float
Command: 293, 0x125 Parameter: Scale number Command 293 returns the weight value for the specified scale as currently displayed in floating-point format. This may include gross, net, tare, or accumulator values, as enabled. The weight value is returned in the mode used to display a scale widget.
Read Accumulator as Float
Command: 294, 0x126 Parameter: Scale number Command 294 returns the accumulator value for the specified scale in floating-point format. Batch status is returned in place of the indicator status.
Read Rate of Change as Float
Command: 295, 0x127 Parameter: Scale number Command 295 returns the current rate of change value for the specified scale in floating-point format. This command is valid only for the 1280.
Set Setpoint Value as Float
Command: 304, 0x130 Parameter: Setpoint number Value: Setpoint value Command 304 sets the setpoint value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a setpoint value. Batch status is returned in place of the indicator status.
Set Setpoint Hysteresis as Float
Command: 305, 0x131 Parameter: Setpoint number Value: Hysteresis value Command 305 sets the hysteresis value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a hysteresis value. Batch status is returned in place of the indicator status.

1280 Modbus TCP Interface
Set Setpoint Bandwidth as Float
Command: 306, 0x132 Parameter: Setpoint number Value: Bandwidth value Command 306 sets the bandwidth value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a bandwidth value. Batch status is returned in place of the indicator status.
Set Setpoint Preact as Float
Command: 307, 0x133 Parameter: Setpoint number Value: Preact value Command 307 sets the preact value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a preact value. Batch status is returned in place of the indicator status.
Read Setpoint Value as Float
Command: 320, 0x140 Parameter: Setpoint number Command 320 returns the target value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a target value. Batch status is returned in place of the indicator status.
Read Setpoint Hysteresis as Float
Command: 321, 0x141 Parameter: Setpoint number Command 321 returns the hysteresis value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a hysteresis value. Batch status is returned in place of the indicator status.
Read Setpoint Bandwidth as Float
Command: 322, 0x142 Parameter: Setpoint number Command 322 returns the bandwidth value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a bandwidth value. Batch status is returned in place of the indicator status.
Read Setpoint Preact as Float
Command: 323, 0x143 Parameter: Setpoint number Command 323 returns the preact value for the specified setpoint in floating-point format. This command is valid only when the setpoint is configured and requires a preact value. Batch status is returned in place of the indicator status.

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5.0 Specifications

Power Requirements

Bus Adapter Card with Modbus TCP Module, DC Power

Supply Voltage

6 VDC

Current Draw

100 mA

Maximum Current Draw

300 mA

Power Consumption

1.8 W

Communications Specifications Twisted-pair cabling up to 100Mbits/s

Environmental Specifications Temperature Range Certified Operating

14° to 104° F (-10° to 40° C) -4° to 131° F (-20° to 55° C)

Conformance

Specifications

February 29, 2024

www.ricelake.com

PN 156782 Rev G

Documents / Resources

RICE LAKE 1280 Indicator Programmable Weight Indicator and Controller [pdf] Installation Guide
156782, 1280 Indicator Programmable Weight Indicator and Controller, Indicator Programmable Weight Indicator and Controller, Programmable Weight Indicator and Controller, Weight Indicator and Controller, Indicator and Controller, Controller

References

User Manual

RICE LAKE 1280 Indicator Programmable Weight Indicator and Controller Installation Guide

1280 Indicator Programmable Weight Indicator and Controller

Specifications

Product Usage Instructions

1. Installation

2. Configuring the Network Settings

3. Commands

FAQ

Q: Can the Modbus TCP Interface be used with any PLC or primary
controller?

Q: Is it necessary to use a NEMA Type 4X stainless steel
enclosure for the indicator?

Documents / Resources

References

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