Pixsys PL-300 Temperature Controller User Manual

Contents hide

1 PL-300 Temperature Controller

2 Specifications

3 Product Usage Instructions:

3.1 Frontal Panel

3.2 Size and Installation

3.3 Electrical Wirings

4 FAQ (Frequently Asked Questions)

4.1 Q: What is the weight of the product?

4.2 Q: What are the available communication protocols?

4.3 Documents / Resources

4.3.1 References

PL-300 Temperature Controller

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Specifications

General features:
- Operating conditions: Standard DIN 43880 for DIN rail
  EN500200
- Box: Self-extinguish Noryl 94V1
- Protection: Box IP30, Terminal blocks IP20
- Weight: About 400 gr.
- Size: 90 x 160×53 (depth) mm

Hardware data:
- Power supply: 12 … 24 Vac/Vdc 10VA (with AC supply, please
  use a separate isolation transformer 20VA for each module)
- Analog inputs: Thermoresistance PT100, NI100, PT500, PT1000;
  Voltage 0-1V, 0-10V, 0-50mV; Current 0-20mA, 4-20mA; PNP
- Digital inputs
- Relay outputs: 1
- Configurable linear outputs: Serial port (contact NO and
  NC)
- Galvanic isolation from power and inputs
Software data:
- PID and ON/OFF algorithms
- Motorised valves control
- Time proportioning output
- Communication protocol: Selectable Baud-rate and answer
  delay

Product Usage Instructions:

Frontal Panel

The frontal panel includes reference numbers for different
functions.

Size and Installation

The product has a size of 90 x 160×53 mm and can be installed
using a DIN rail mounting guide EN50022.

Electrical Wirings

Refer to the following table for connecting various
components:

Name	Description
AN1+	Positive signal for analog input AN1 (+Tc)

FAQ (Frequently Asked Questions)

Q: What is the weight of the product?

A: The product weighs about 400 gr.

Q: What are the available communication protocols?

A: The product supports selectable Baud-rate and answer delay
for communication.

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Contents list
1. Data acquisition module PL300 ……………………………………………………………… 3 1.1 Introduction ………………………………………………………………………………………. 3 1.2 Frontal panel……………………………………………………………………………………… 5 1.3 Size and installation……………………………………………………………………………. 6 1.4 Electrical wirings……………………………………………………………………………….. 7 1.4.1 Examples of sensors connections to analog inputs PL300 ……………….. 10 1.4.2 Example of connection to RS485 and to a Master unit ……………………. 11 1.5 Select type of linear output………………………………………………………………… 12 1.6 Communication address ……………………………………………………………………. 13 1.7 List of configuration parameters ………………………………………………………… 14 1.8 Configuration of alarms for analog inputs……………………………………………. 23 1.9 Tuning (Automatic setting of PID parameters) …………………………………….. 26 1.10 Protocol Modbus RTU …………………………………………………………………… 27 1.11 Addresses WORD/BIT PL300 for Modbus RTU……………………………….. 28

1. Data acquisition module PL300

1.1 Introduction

The module PL300 is a powerful data acquisition module which can be used as I/O interface for Industrial terminals or SCADA It allows to measure temperature values with different types of thermocouples and thermoresistance and/or it enables the acquisition of normalized signals by means of a 14 bit converter. The 6 digital inputs can get eventual alarm notices and the 2 linear outputs (isolated 14 bit) can drive different types of transducers. Twelve relay outputs (2 relays 8A + 10 relays 5A / 230VAC resistive) are available. Beside the mixed acquisition system, a great advantage of this module PL300, compared to any PC board, is the possibility to place it close to the plant and let it communicate with the central unit via RS485 or Current loop 20mA (both interfaces are galvanic isolated). This means a higher immunity to any external noise, beside the possibility to simplify the wirings. The module has been designed and built in compliance with current CE standards and it widely meets the safety requirements for light and heavy industry.

General features

Operating

0-45 °C, humidity 35..95rH%

conditions

Box

Standard DIN 43880 for DIN rail EN500200

Self-extinguish Noryl 94V1

Protection

Box IP30, Terminal blocks IP20

Weight

About 400 gr.

Size

90 x 160×53 (depht) mm

Hardware data Power supply Analog inputs (selectable via software)
Digital inputs

12 … 24 Vac/Vdc 10VA (with AC supply, please use a

separate isolation transformer 20VA for each module)

AN1÷AN4 – Thermocouples K, S, T, R, J, E

– Thermoresistance PT100, NI100,

PT500,PT1000

(accuracy 0.2% ± 1 digit)

– Voltage 0-1V,0-10V,0-50mV

(accuracy 0.2% ± 1 digit)

– Current 0-20mA, 4-20mA

– (accuracy 0.1% ± 1 digit)

I5÷I10

– PNP

Relay outputs1
Uscite SSR2
Configurable linear outputs (selectable via software and by internal dipswitch) Serial port

U1÷U12

– U1÷U2 relay 8A-230Vac

(contact NO and NC)

– U3÷U12 relay 5A-230 Vac

SSR1÷SSR4 – Supply 10-32 Vdc

– Max 100mA for single output

OUT1÷OUT2 – Logic 0-14V (20mA max.)

– Voltage 0-10V (12bit/20mA max.)

– Current 4-20mA (12bit)

Galvanic isolated from power and from

inputs, but not isolated themselves

COM1

– RS485 available on terminal block

and plug connector/ 8 poles

Galvanic isolated

COM2

– RS232 MODBUS on plug

connector 8 poles (not isolated)

Software data PID and ON/OFF algorithms Motorised valves control
Time proportioning output
Comunication protocol

Up to 4 control loops ON/OFF control or PID withAutotuning function (automatic setting of PID parameters) Using two coupled relay outputs (U1-U2, U3-U4, U5-U6, U7-U8) it is possible to drive the opening of motorised valves. Position control is performed by measuring the time of opening and closing impulses. In case any value is controlled applying ON/OFF modulation, some outputs can be activated for time-proportioning ON/OFF operating: period (sec.) and duty-cycle of output signal must be defined and the PL300 generates it automatically Modbus RTU.

Selectable Baud-rate and answer delay

1 U1÷U4 available only on PL300-10AD 2 Available only on PL300-30AD.

1.2 Frontal panel

#$
!”

Reference 1
2
3

Description Plug connector comunication COM1, COM2
RUN green led · ON when PL300 is working · Fast flashing (0,2sec ON /0,2sec OFF) if main program is not
available and only boot program is stored on PL300 COM led yellow · ON for 50ms during transmission of frames on serial ports · ON during the programming (update of main program) OUT 1..12 red leds ON if output is active IN 1..10 green leds ON if digital input is active, blinking led for analog input out of range.
Slave number of module PL300.

1.3 Size and installation
RT1

28 29 30 31 32 33 34 35 36

37 38 39 40 41 42 43 44 45

46 47 48 49

90 4 5

1 2345678 9

10 11 12 13 14 15 16 17 18

19 20 21 22 23 24 25 26 27

Attacco a guida DIN EN50022 Din rail mounting guide EN50022

160 mm

1.4 Electrical wirings

N°

Name Description

Supply 12÷24V ACDC 10VA. To improve immunity to

noises, the employ of the dedicated transformer secondary

is highly recommended.

Reference signal of serial Use these terminals to

comunication port

expand serial connection on

applications requiring more

RS485- / C.L.20mA+

than one module PL300. In case of comunication via

RS485, connect all terminals

C of various PL300 as well

RS485+ / C.L.20mA-

as terminals A and B.

AN1+ Positive signal for analog input AN1 (+Tc).

AN1- Reference signal analog input AN1 (-Tc).

AN1C Compensation PT100. For 3-wire PT100 connect

compensation wire to this terminal.

AN2+ Positive signal for analog input AN2 (+Tc).

AN2- Reference signal for analog input AN2 (-Tc).

AN2C Compensation PT100. For 3-wire PT100 connect

compensation wire to this terminal.

AN3+ Positive signal for analog input AN3 (+Tc).

AN3- Reference signal for analog input AN3 (-Tc).

AN3C Compensation PT100. For 3-wire PT100 connect

compensation wire to this terminal.

AN4+ Positive signal for analog input AN4 (+Tc).

AN4- Reference signal for analog input AN4 (-Tc)

AN4C Compensation PT100. For 3-wire PT100 connect

compensation wire to this terminal.

Common positive signal for digital inputs. Connect this

signal to one of the digital inputs (I5÷I10) or to terminal

6 9

COM INPUT

“+” of analog inputs (AN1÷AN4 if configured via software as digital input), to activate the input (the relevant led switches on). These pins may be used to provide power

supply to analog sensors (voltage or current)

Input voltage is not stabilized.

N°

Name Description

Digital input

I10

Digital input

To activate digital inputs, short-circuit signal COM INPUT on the terminals of input. Leds ON mean that output is active

PL300-10AD Version 12 relay outputs

U1 Com Common contact relay U1.

U1 N.C. Contact relay U1 N.C.

U1 N.O. Contact relay U1 N.O.

U2 Com Common contact relay U2.

U2 N.C. Contact relay U2 N.C.

U2 N.O. Contact relay U2 N.O.

34 U3÷U7 Com Common contact relays U3÷U7.

U3 N.O. Contact relay U3 N.O.

U4 N.O. Contact relay U4 N.O.

U5 N.O. Contact relay U5 N.O.

U6 N.O. Contact relay U6 N.O.

U7 N.O. Contact relay U7 N.O.

40 U8÷U12Com Common contact relays U8÷U12.

U8 N.O. Contact relay U8 N.O.

U9 N.O. Contact relay U9 N.O.

43 U10 N.O. Contact relay U10 N.O.

44 U11 N.O. Contact relay U11 N.O.

45 U12 N.O. Contact relay U12 N.O.

OUT1+ Positive signal linear output OUT1.

OUT1- Reference linear output OUT1.

OUT2+ Positive signal linear output OUT2

OUT2- Reference linear output OUT2

8A ÷ 230Volt resistive
5A ÷ 230Volt resistive
0..10 Volt 4..20 mA Logic 0-15 Volt

PL300-30AD Version 8 relay outputs + 4 SSR outputs

No.

Name Description

—

No connection

SSR2 Output SSR no. 2 (NPN).

SSR1 Output SSR no. 1 (NPN).

100mA ÷ 24Volt

—

No connection

Max.

SSR4 Output SSR no. 4 (NPN).

SSR3 Output SSR no. 3 (NPN).

35 36

12/24V3

Positive signal for SSR outputs. Reference signal for SSR outputs.

10 ÷ 32 Vdc

34 U5÷U7 Com Common contact relays U5÷U7.

U5 N.O. Relay U5 contact N.O.

U6 N.O. Relay U6 contact N.O.

U7 N.O. Relay U7 contact N.O.

40 U8÷U12Com Common contact for relays U8÷U12.

U8 N.O. Relay U8 contact N.O.

U9 N.O. Relay U9 contact N.O.

43 U10 N.O. Relay U10 contact N.O.

44 U11 N.O. Relay U11 contact N.O. 45 U12 N.O. Relay U12 contact N.O.

OUT1+ Positive OUT1 linear

OUT1- Reference OUT1 linear

OUT2+ Positive OUT2 linear

5A ÷ 230Volt resistive
0..10 Volt 4..20 mA Logic 0-15 Volt

OUT2- Reference OUT2 linear

3 Up to max. 80 mA, to supply SSR outputs it is possible to use the common positive signal of digital inputs (pins 3,6,9,18) and the negative signal of general power supply (pin 2).

No. Name Description

COM1 RS485

COM

COM2

RS232
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1.4.1 Examples of sensors connections to analog inputs PL300

1.4.2 Example of connection to RS485 and to a Master unit

(

) ! !*+ ! !

%&’

1.5 Select type of linear output
PL300 is provided with 2 linear outputs (OUT1, OUT2) which must be configured via software and manually by configuring 2 dip-switches on board: · Disconnect power supply PL300. · Use a screwdriver to remove the upper cover of PL300 · Set dip SW1 (for OUT1) and SW2 (for OUT2) as shown here below to
configure the output
· Replace the upper cover and restart PL300. · Dip SW1-1 and SW2-1 are used to set the communication address of PL300,
not for outputs selection.
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1.6 Communication address
Two dip-switches allow to set the address of module PL300 to communicate with a Master device. Four combinations of jumpers are available, therefore to connect more than 4 modules to the network it is necessary to modify the value of offset parameter. The address of the module is given as follows: MODULE ADDRESS = ADDRESS OFFSET + COMBINATION OF DIPSWITCHES The address offset is stored on memory of PL300 (default is 0) and it can be modified on Modbus word 5. To set the address proceed as follows: · Disconnect power supply · Remove upper cover of PL300 · Set dip SW1-1 and SW2-1 as described below : the obtained value must be
added to offset value in order to get the complete address.
· Place cover and restart PL300.
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1.7 List of configuration parameters
Configuration parameters are stored on EEPROM, therefore they will not be lost in case of power failure. Each parameter can be written max. 100.000 times, therefore avoid useless writings of parameters. At each modify of parameters, PL300 starts the inizialization both of inputs reading and outputs rate. This stage lasts about 2 seconds. Some parameters are handled as hexadecimal digits: the parameter is divided into 4 nibbles (groups of 4 bit) to be represented. “1st digit” = bits 12÷15 “2nd digit”= bits 8÷11 “3rd digit” =bits 4÷7 “4th digit”= bits 0÷3 ( bit 0 is meant as less significant)
P-01 Configuration analog input AN1 P-02 Configuration analog input AN2 P-03 Configuration analog input AN3 P-04 Configuration analog input AN4
These parameters define the type of sensor connected to analog input AN1, AN2, AN3 , AN4. 0 No connected sensor ( Input used as digital input) 1 Type K (-270/1370°C) 2 Type S (-50/1760°C) 3 Type T (-270/400°C) 4 Type R (-50/1760°C) 5 Type J (-210/1200°C) 6 Type E (-270/1000°C) 7 PT100 (-200/800°C) 8 NI100 (-60/180°C) 9 ————–10 Voltage 0..1V 11 Voltage 0..10V 12 Current 0..20mA 13 Current 4..20mA 14 Voltage 0..50mV 15 PT500 with resistor 506 Ohm 0,1% parallel (-200/350°C) 16 NI1000 with resistor 470 Ohm 0.1% parallel (-60/150°C) P-05 Lower limit scale AN1 (-3000.0 ÷ 3000.0) P-06 Upper limit scale AN1 (-3000.0 ÷ 3000.0) These parameters define the numeric limits of analog conversion for signal connected to AN1 (only if configured for current/voltage).
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P-07 P-08
P-09 P-10
P-11 P-12
P-13 P-14 P-15 P-16 P-17 P-18 P-19 P-20
P-21 P-22 P-23

Lower limit scale AN2 (-3000.0 ÷ 3000.0) Upper limit scale AN2 (-3000.0 ÷ 3000.0) These parameters define the numeric limits of analog conversion for signal connected to AN2 (only if configured for current or voltage).
Lower limit scale AN3 (-3000.0 ÷ 3000.0) Upper limit scale AN3 (-3000.0 ÷ 3000.0) These parameters define the numeric limits of analog conversion for signal connected to AN3 (only if configured for current/voltage).
Lower limit scale AN4 (-3000.0 ÷ 3000.0) Upper limit scale AN4 (-3000.0 ÷ 3000.0) These parameters define the numeric limits of analog conversion for signal connected to AN4 (only if configured for current/voltage)
Calibration OFFSET AN1 (-999.9 ÷ 999.9) Calibration GAIN AN1 (-999.9 ÷ 999.9%) Calibration OFFSET AN2 (-999.9 ÷ 999.9) Calibration GAIN AN2 (-999.9 ÷ 999.9%) Calibration OFFSET AN3 (-999.9 ÷ 999.9) Calibration GAIN AN3 (-999.9 ÷ 999.9%) Calibration OFFSET AN4 (-999.9 ÷ 999.9) Calibration GAIN AN4 (-999.9 ÷ 999.9%) These parameters define the calibration for conversion of AN1, AN2, AN3, AN4 to correct any eventual reading mistake. The relative formule is as follows: Value AN1 = Value AN1 + (Value AN1 * GAIN calibration AN1) / 100.0 + OFFSET Calibration Software filter (1..20sec) Filter value on conversion of AN1, AN2, AN3 , AN4 Type of linear output OUT1 Type of linear output OUT2 Type of used linear output. Set the dip-switches correctly. Time for SSR output is set on P-24 (OUT1) and P-25 (OUT2). 0 Not used 1 Logic 0-14V(30mA) 2 Voltage 0…10V 3 Current 4..20mA 4 ——————-5 SSR time proportioning (Period is set on parameters P-24 / P-25)

P-24 Time for servo-control 1 (0..600 sec.) Time for servo-control related to Open/Close U1,U2 or period for time proportioning output U1(U2) or SSR1 or OUT1 (see P-28)
P-25 Time for servo-control 2 (0..600 sec.) Time for servo-control related to Open/Close U3,U4 or period for time proportioning output U3(U4) or SSR2 or OUT2 (see P-29)
P-26 Time for servo-control 3 (0..600 sec.) Time for servo-control related to Open/Close U5,U6 or period for time proportioning output U5(U6) or SSR3 (see P-30)
P-27 Time for servo-control 4 (0..600 sec.) Time for servo-control related to Open/Close U7,U8 or period for time proportioning output U7(U8) or SSR4 (see P-31)
P-28 SERVO-CONTROL1 Operating mode for relay output U1,U2 or SSR1 0 Desabled (U1-U2 or SSR1 free) 1 Combined operating of U1-U2 for function OPEN (U1)-CLOSE (U2) 2 Time proportioning U1 with contact N.O. U2 free 3 Time proportioning U1 with contact N.O. Time proportioning U2 with contact N.C 4 U1 ON/OFF + contact N.O. U2 free 5 U1 ON/OFF + contact N.C. U2 free 6 SSR1 time proportioning 7 SSR1 ON/OFF
P-29 SERVO-CONTROL2 Operating mode for relay output U3,U4 or SSR2 0 Desabled (U3 U4 or SSR2 free) 1 Combined operating of U3-U4 for function OPEN (U3)-CLOSE (U4) 2 Time proportioning U3 with contact N.O. U4 free 3 Time proportioning U3 with contact N.O. Time proportioning U4 with contact N.C. 4 U3 ON/OFF + contact N.O. U4 free 5 U3 ON/OFF + contact N.C. U4 free 6 SSR2 time proportioning 7 SSR2 ON/OFF
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P-30 SERVO-CONTROL3 Operating mode for relay output U5,U6 or SSR3 0 Desabled (U5, U6 or SSR3 free) 1 Combined action of U5-U6 for function OPEN (U5)-CLOSE (U6) 2 Time proportioning U5 with contact N.O. U6 free 3 Time proportioning U5 with contact N.O. Time proportioning U6 with contact N.C. 4 U5 ON/OFF + contact N.O. U6 free 5 U5 ON/OFF + contact N.C. U6 free 6 SSR3 time proportioning 6 SSR3 ON/OFF
P-31 SERVO-CONTROL4 Operating mode for relay output U7,U8 or SSR4 0 Desabled (U7, U8 or SSR4 free) 1 Combined action of U7-U8 for function OPEN (U7)-CLOSE (U8) 2 Time proportioning U7 with contact N.O. U8 free 3 Time proportioning U7 with contact N.O. Time proportioning U8 with contact N.C. 4 U7 ON/OFF + contact N.O. U8 free 5 U7 ON/OFF + contact N.C. U8 free 6 SSR4 time proportioning 7 SSR4 ON/OFF
P-32 State of relay in off-line condition State of relays in case of comunication failure with MASTER for over 60 seconds. Each bit of this parameter is related to the state of one relay: Bit0 U1, Bit1 U2, … Bit11 U12. Value 65535 desables this function. 0 Open contact 1 Closed contact
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P-33 Configuration serial port COM1 (RS-485) Switch off and restart the PL300 after entering of these settings. 1st Digit BaudRate communication COM1 0 9600 bits/sec 1 19200 bits/sec 2 38400 bits/sec 2nd Digit Data format for COM1 0 8,N,1 1 8,O,1 2 8,E,1 3 8,N,2 4 8,O,2 5 8,E,2
P-34 Answer delay COM1 (RS-485) 0..1000 msec Set the minimum delay between end of serial reception of data from master and start of answer transmission from PL300.
P-35 Reserved P-36 Control action on analog inputs
1st Digit Control action analog input AN1 2nd Digit Control action analog input AN2 3rd Digit Control action analog input AN3 4th Digit Control action analog input AN4
0 No control action 1 ON/OFF 2 P.I.D. direct (ex.: cooling) 3 P.I.D. reverse (ex.: heating)
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P-37 Control outputs 1st Digit Control output AN1analog input 0 Servo-control 1 (see parameter P-28) 1 OUT1 (see parameter P-22) 2 OUT2 (see parameter P-23) 2nd Digit Control output AN2 analog input 0 Servo-control 2 (see parameter P-29) 1 OUT1 (see parameter P-22) 2 OUT2 (see parameter P-23) 3rd Digit Control output AN3 analog input 0 Servo-control 3 (see parameter P-30) 2 OUT1 (see parameter P-22) 3 OUT2 (see parameter P-23) 4th Digit Control output AN4 analog input 0 Servo-control 4 (see parameter P-31) 2 OUT1 (see parameter P-22) 3 OUT2 (see parameter P-23)
P-38 Dead band PID control (or hysteresis ON/OFF ) AN1 (-999.9÷999.9) P-39 Proportional band PID control AN1 (-999.9÷999.9) P-40 Integral time PID control AN1 (0÷10000 sec) P-41 Dearivative time PID control AN1 (0÷1000.0 sec) P-42 Dead band PID control (or hysteresis ON/OFF ) AN2 (-999.9÷999.9) P-43 Proportional band PID control AN2 (-999.9÷999.9) P-44 Integral time PID control AN2 (0÷10000 sec) P-45 Derivative time PID control AN2 (0÷1000.0 sec) P-46 Dead band PID control (or hysteresis ON/OFF ) AN3 (-999.9÷999.9) P-47 Proportional band PID control AN3 (-999.9÷999.9) P-48 Integral time PID control AN3 (0÷10000 sec) P-49 Derivative time PID regolazione AN3 (0÷1000.0 sec) P-50 Dead band PID control (or hysteresis ON/OFF ) AN4 (-999.9÷999.9) P-51 Proportional band PID control AN4 (-999.9÷999.9) P-52 Integral time PID control AN4 (0÷10000 sec) P-53 Derivative time PID control AN4 (0÷1000.0 sec) P-54 Use of variables on non-volatile RAM
1st Digit Enable the functions related to words 164÷175 0 Functions desabled 1 Functions enabled
2nd Digit Enable the functions related to words 176÷179 0 Functions desabled 1 Functions enabled
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P-55 Starting % output OUT1 (0.00÷100.00 %)

P-56 Starting % output OUT2 (0.00÷100.00 %)

P-57

Configuration of alarms for analog inputs AN1, AN2 1st Digit Configuration 1st alarm analog input AN1 2nd Digit Configuration 2nd alarm analog input AN1 3rd Digit Configuration 1st alarm analog input AN2 4th Digit Configuration 2nd alarm analog input AN2

0 Desabled

1 Independent alarm / over

2 Independent alarm / under

3 Upper deviation

4 Lower deviation

5 Band alarm / inside

6 Band alarm / outside

7 Lower deviation alarm desabled at starting

(Alarm is automatically enabled when value of analog input

exceeds the alarm treshold added to value of hysteresis).

P-58

Configuration of alarms for analog inputs AN3, AN4 1st Digit Configuration 1st alarm analog input AN3 2nd Digit Configuration 2nd alarm analog input AN3 3rd Digit Configuration 1st alarm analogal input AN4 4th Digit Configuration 2nd alarm analog input AN4

0 Disabled

1 Independent alarm / over

2 Independent alarm / under

3 Upper deviation

4 Lower deviation

5 Band alarm / inside

6 Band alarm / outside

7 Lower deviation alarm desabled at starting

(Alarm is automatically enabled when value of analog input

exceeds the alarm treshold added to value of hysteresis).

P-59 P-60

Configuration of alarm outputs for analog inputs AN1, AN2 1st Digit 1st alarm analog input AN1 2nd Digit 2nd alarm analog input AN1 3rd Digit 1st alarm analog input AN2 4th Digit 2nd alarm analog input AN2
0 No output 1 U1/SSR1 2 U2/SSR2 3 U3/SSR3 4 U4/SSR4 5 U5 6 U6 7 U7 8 U8 9 U9 10 U10 11 U11 12 U12 13 OUT1 14 OUT2 Configuration of alarm outputs for analog inputs AN3, AN4 1st Digit Output configuration for 1st alarm analog input AN3 2nd Digit Output configuration 2nd alarm analog input AN3 3rd Digit Output configuration 1st alarm analog input AN4 4th Digit Output configuration 2nd alarm analog input AN4 0 No outputs 1 U1/SSR1 2 U2/SSR2 3 U3/SSR3 4 U4/SSR4 5 U5 6 U6 7 U7 8 U8 9 U9 10 U10

Realy outputs U1÷U4 are available on PL300-1XAD (12 relay OUT), SSR1÷SSR4 outputs are available on PL300-3XAD (4 SSR + 8 relay OUT).

11 U11 12 U12 13 OUT1 14 OUT2 P-61 Treshold 1st alarm analog input AN1 (-3000.0 ÷ 3000.0) P-62 Hysteresis 1st alarm analog input AN1 (0.0 ÷ 999.9) P-63 Treshold 2nd alarm analog input AN1 (-3000.0 ÷ 3000.0) P-64 Hysteresis 2nd alarm analog input AN1 (0.0 ÷ 999.9) P-65 Treshold 1st alarm analog input AN2(-3000.0 ÷ 3000.0) P-66 Hysteresis 1st alarm analog input AN2 (0.0 ÷ 999.9) P-67 Treshold 2nd alarm analog input AN2 (-3000.0 ÷ 3000.0) P-68 Hysteresis 2nd alarm analog input AN2 (0.0 ÷ 999.9) P-69 Treshold 1st alarm analog input AN3 (-3000.0 ÷ 3000.0) P-70 Hysteresis 1st alarm analog input AN3 (0.0 ÷ 999.9) P-71 Treshold 2nd alarm analog input AN3 (-3000.0 ÷ 3000.0) P-72 Hysteresis 2nd alarm analog input AN3 (0.0 ÷ 999.9) P-73 Treshold 1st alarm analog input AN4 (-3000.0 ÷ 3000.0) P-74 Hysteresis 1st alarm analog input AN4 (0.0 ÷ 999.9) P-75 Treshold 2nd alarm analog input AN4 (-3000.0 ÷ 3000.0) P-76 Hysteresis 2nd alarm analog input AN4 (0.0 ÷ 999.9) P-77 Define state and setpoint for control action on analog inputs 1st digit Control action for analog input AN1 2nd digit Control action for analog input AN2 3rd digit Control action for analog input AN3 4th digit Control action for analog input AN4 0 Control action is defined by bit no. 600, 601, 602 , 603 and by
setpoint values written on words no. 158, 159, 160 ,161. Start/stop of control action and modify of setpoints both available via serial communication. 1 Control action always activated. Setpoint values written on parameters P-78, P-79, P-80 e P-81. Select this option if modify of setpoints by the operator is not required. 2 Control action always activated. Setpoint values written on words no. 158, 159, 160, 161 and changeable via serial communication. P-78 Control setpoint for analog input AN1 (-3000.0 ÷ 3000.0) P-79 Control setpoint for analog input AN2 (-3000.0 ÷ 3000.0) P-80 Control setpoint for analog input AN3 (-3000.0 ÷ 3000.0) P-81 Control setpoint for analog input AN4 (-3000.0 ÷ 3000.0)
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1.8 Configuration of alarms for analog inputs
For each analog input, two alarms can be used and their operating is depending on the values of parameters P-57 to P-76. The tables below show the different operatings available for alarms. INDEPENDENT ALARM / OVER
Max. treshold for the alarm source (one of the analog inputs).
INDEPENDENT ALARM / UNDER
Minimum treshold for the alarm source.
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DEVIATION HIGH ALARM DEVIATION LOW ALARM BAND ALARM / INSIDE
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BAND ALARM / OUTSIDE
DEVIATION LOW ALARM – DESABLED AT STARTING This alarm is desabled at the starting of PL300 and it is automatically activated when the alarm source exceeds the alarm treshold of a value which is equal to the hysteresis. Then the alarm works like the above described “deviation low alarm”.
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1.9 Tuning (Automatic setting of PID parameters)
In Tuning action the characteristics of the controller are matched to those of the process being controlled in order to obtain: -stable “straight-line” control of the temperatre at setpoint without fluctuations -no overshoot or undershoot of the temperature at setpoint -quick response to deviations from the setpoint caused by external disturbances, thereby restoring the temperature rapidly to the setpoint value Tuning involves calculating and setting the value of the following parameters: · Proportional band (The bandwidth in display units over which the output
power is proportioned between minimum and maximum ) · Integral time (determines the time taken by the controller to remove steady-
state error signals) · Derivative time (determines how strongly the controller will react to the rate-
of-change of the measured value) · Servo-control time (determines the cycle time for time proportioning output)
For management of motorized valves (Open/Close), time is not rated.
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1.10 Protocol Modbus RTU

Module PL300 is conceived for connection to SCADA systems or Terminals via Modbus RTU. Serial communication enables the programming of parameters, configuration of I/O, reading of analog/digital inputs and outputs control.

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“#$

Features of protocol Modbus RTU

Baud-rate

COM1 ->9600 baud (Default: see parameter P-33)

COM2 ->19200 baud

Format

8,N,1 = 8bit, no parity, 1stop ( (Default: see parameter P-33)

Supported functions BITS READING

(0x01, 0x02)

WORDS READING (max 30 word)

(0x03, 0x04)

SINGLE BIT WRITING

(0x05)

SINGLE WORD WRITING

(0x06)

MULTIPLE BITS WRITING

(0x0F)

MULTIPLE WORDS WRITING (max 30 word) (0x10)

Error codes

ILLEGAL FUNCTION CODE

(0x01)

ILLEGAL DATA ADDRESS

(0x02)

ILLEGAL DATA VALUE

(0x04)

Broadcast

Simultaneous writing to all connected slaves by address

0x00 , no answer from slaves

Polling of unknown Polling address 0xFF ; any connected slave answers.

slave address

1.11 Addresses WORD/BIT PL300 for Modbus RTU
The following tables contain all data (words and bits) which may be handled by Modbus protocol. The tables report reading and writing features as well as the value assumed at the starting of PL300. According to inizialization value assumed at starting, the following type of value are possible:

1. “EEP” value stores on Eeprom memory and kept also in case of power failure
2. “TAMP” value stored on non-volatile RAM memory. Also these data are stored in case of power failure (approx. 4 months)
3. “?” These values are not given at the starting of PL300 4. Numeric value: the value assumed at starting of PL300 is the one which is
reported in the table.

WORD

MODBUS ADDRESS

Description

0 Type of device

1 Software version PL300

5 Slave address MODBUS protocol

96 Value of linear output OUT1 (Range 0-10000)

97 Value of linear output OUT2 (Range 0-10000)

98 Serial transmission counter

99 Reset monitor (force to “0” at reset)

100 Value analog input AN1

101 Value analog input AN2

102 Value analog input AN3

103 Value analog input AN4

104 Value digital inputs (bit0 I1,…, bit9 I10)

105 Status relay outputs (bit0 U1,…, bit11 U12)

106 Temperature cold junction PL300

107 Flag for module status (1 = error/fail)

Bit 0 input AN1 out of range

Bit 1 input AN2 out of range

Bit 2 input AN3 out of range

Bit 3 input AN4 out of range

Bit 4 internal eeprom error

Bit 5 error on configuration parameters

Bit 6 error on calibration parameters

Bit 7 error on RAM memory data (TAMP)

Bit 8 error internal clock

READ/ WRITE
R R R/W R R R/W R/W R R R R R R R R

RESET VALUE
20 100 EEP P-55 P-56
0 0 ? ? ? ? ? ? ? ?

WORD

MODBUS ADDRESS

Description

READ/ RESET WRITE VALUE

108 Alarms status analog inputs (bit0 alarm no.1 AN1, R

bit1 alarm no.2 AN1,…, bit7 alarm no.2 AN4)

109 Timer (minutes) for closing of relay U1/SSR1

R/W TAMP

110 Timer (minutes) for closing of relay U2/SSR2

R/W TAMP

111 Timer (minutes) for closing of relay U3/SSR3

R/W TAMP

112 Timer (minutes) for closing of relay U4/SSR4

R/W TAMP

113 Timer (minutes) for closing of relay U5

R/W TAMP

114 Timer (minutes) for closing of relay U6

R/W TAMP

115 Timer (minutes) for closing of relay U7

R/W TAMP

116 Timer (minutes) for closing of relay U8

R/W TAMP

117 Timer (minutes) for closing of relay U9

R/W TAMP

118 Timer (minutes) for closing of relay U10

R/W TAMP

119 Timer (minutes) for closing of relay U11

R/W TAMP

120 Timer (minutes) for closing of relay U12

R/W TAMP

150 Setting of servo control 1 output (Range 0-10000)

R/W 0

151 Setting of servo control 2 output (Range 0-10000)

R/W 0

152 Setting of servo control 3 output (Range 0-10000)

R/W 0

153 Setting of servo control 4 output (Range 0-10000)

R/W 0

154 Setting of linear output OUT1 (Range 0-10000)

R/W P-55

155 Setting of linear output OUT2 (Range 0-10000)

R/W P-56

156 Setting relay outputs (bit0 U1,…, bit11 U12)

R/W 0

157 Enable relay modify via serial communication

R/W 0

1 enable, 0 desable

bit0 U1,…, bit11 U12.

Only relays having bit=1 will assume the entered

value by parameter 156

158 Control setpoint AN1

R/W TAMP

159 Control setpoint AN2

R/W TAMP

160 Control setpoint AN3

R/W TAMP

161 Control setpoint AN4

R/W TAMP

162 Control Run/Stop AN1÷AN4

R/W TAMP

(bit0 AN1,…, bit3 AN4 1=RUN)

163 Start Auto-tuning AN1÷AN4 (only for reverse P.I.D.) R/W TAMP

(bit0 AN1,…, bit3 AN4 1=START)

After completing the routine, PL300 will reset to 0 the

bit related to the input which has been processed.

WORD

MODBUS ADDRESS

Description

164 Select source analog input for control loop 1

0=AN1, 1=AN1, 2=AN2, 3=AN3, 4=AN4.

165 Select source analog input for control loop 2

0=AN2, 1=AN1, 2=AN2, 3=AN3, 4=AN4.

166 Select source analog input for control loop 3

0=AN3, 1=AN1, 2=AN2, 3=AN3, 4=AN4.

167 Select source analog input for control loop 4

0=AN4, 1=AN1, 2=AN2, 3=AN3, 4=AN4.

168 Select source setpoint for control loop 1

0 = Control setpoint AN1 (word n° 158)

1 = Control setpoint AN1 (word n° 158)

2 = Control setpoint AN2 (word n° 159)

3 = Control setpoint AN3 (word n° 160)

4 = Control setpoint AN4 (word n° 161)

169 Select source setpoint for control loop 2

0 = Control setpoint AN2 (word n° 159)

1 = Control setpoint AN1 (word n° 158)

2 = Control setpoint AN2 (word n° 159)

3 = Control setpoint AN3 (word n° 160)

4 = Control setpoint AN4 (word n° 161)

170 Select source setpoint for control loop 3

0 = Control setpoint AN3 (word n° 160)

1 = Control setpoint AN1 (word n° 158)

2 = Control setpoint AN2 (word n° 159)

3 = Control setpoint AN3 (word n° 160)

4 = Control setpoint AN4 (word n° 161)

171 Select source setpoint for control loop 4

0 = Control setpoint AN4 (word n° 161)

1 = Control setpoint AN1 (word n° 158)

2 = Control setpoint AN2 (word n° 159)

3 = Control setpoint AN3 (word n° 160)

4 = Control setpoint AN4 (word n° 161)

172 Select PID parameters for control loop 1

0=Chose PID parameters AN1

1= Chose PID parameters AN1

2= Chose PID parameters AN2

3= Chose PID parameters AN3

4= Chose PID parameters AN4

READ/ RESET WRITE VALUE
R/W TAMP R/W TAMP R/W TAMP R/W TAMP R/W TAMP
R/W TAMP
R/W TAMP
R/W TAMP
R/W TAMP

173 Select PID parameters for control loop 2 0=Chose PID parameters AN2 1= Chose PID parameters AN1 2= Chose PID parameters AN2 3= Chose PID parameters AN3 4= Chose PID parameters AN4
174 Select PID parameters for control loop 3 0=Chose PID parameters AN3 1= Chose PID parameters AN1 2= Chose PID parameters AN2 3= Chose PID parameters AN3 4= Chose PID parameters AN4
175 Select PID parameters for control loop 4 0=Chose PID parameters AN4 1= Chose PID parameters AN1 2= Chose PID parameters AN2 3= Chose PID parameters AN3 4= Chose PID parameters AN4
176 Minimum % output OUT1 (0.00÷100.00%) 177 Max. % output OUT1 (0.00÷100.00%) 178 Minimum % output OUT2 (0.00÷100.00%) 179 Max. % output OUT2 (0.00÷100.00%)

R/W TAMP
R/W TAMP
R/W TAMP
R/W TAMP R/W TAMP R/W TAMP R/W TAMP

For details about the options described above, see parameter P-54.

WORD

MODBUS ADDRESS

Description

200 Configuration parameter P-01

201 Configuration parameter P-02

202 Configuration parameter P-03

203 Configuration parameter P-04

204 Configuration parameter P-05

205 Configuration parameter P-06

206 Configuration parameter P-07

207 Configuration parameter P-08

208 Configuration parameter P-09

209 Configuration parameter P-10

210 Configuration parameter P-11

211 Configuration parameter P-12

212 Configuration parameter P-13

213 Configuration parameter P-14

214 Configuration parameter P-15

215 Configuration parameter P-16

216 Configuration parameter P-17

217 Configuration parameter P-18

218 Configuration parameter P-19

219 Configuration parameter P-20

220 Configuration parameter P-21

221 Configuration parameter P-22

222 Configuration parameter P-23

223 Configuration parameter P-24

224 Configuration parameter P-25

225 Configuration parameter P-26

226 Configuration parameter P-27

227 Configuration parameter P-28

228 Configuration parameter P-29

229 Configuration parameter P-30

230 Configuration parameter P-31

231 Configuration parameter P-32

232 Configuration parameter P-33

233 Configuration parameter P-34

234 Configuration parameter P-35

235 Configuration parameter P-36

236 Configuration parameter P-37

237 Configuration parameter P-38

READ/ RESET WRITE VALUE
R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP R/W EEP

WORD

MODBUS ADDRESS

Description

238 Configuration parameter P-39

239 Configuration parameter P-40

240 Configuration parameter P-41

241 Configuration parameter P-42

242 Configuration parameter P-43

243 Configuration parameter P-44

244 Configuration parameter P-45

245 Configuration parameter P-46

246 Configuration parameter P-47

247 Configuration parameter P-48

248 Configuration parameter P-49

249 Configuration parameter P-50

250 Configuration parameter P-51

251 Configuration parameter P-52

252 Configuration parameter P-53

253 Configuration parameter P-54

254 Configuration parameter P-55

255 Configuration parameter P-56

256 Configuration parameter P-57

257 Configuration parameter P-58

258 Configuration parameter P-59

259 Configuration parameter P-60

260 Configuration parameter P-61

261 Configuration parameter P-62

262 Configuration parameter P-63

263 Configuration parameter P-64

264 Configuration parameter P-65

265 Configuration parameter P-66

266 Configuration parameter P-67

267 Configuration parameter P-68

268 Configuration parameter P-69

269 Configuration parameter P-70

270 Configuration parameter P-71

271 Configuration parameter P-72

272 Configuration parameter P-73

273 Configuration parameter P-74

274 Configuration parameter P-75

275 Configuration parameter P-76

WORD

MODBUS ADDRESS

Description

276 Configuration parameter P-77

277 Configuration parameter P-78

278 Configuration parameter P-79

279 Configuration parameter P-80

280 Configuration parameter P-81

READ/ WRITE
R/W R/W R/W R/W R/W

RESET VALUE
EEP EEP EEP EEP EEP

BIT

MODBUS ADDRESS

DESCRIPTION

300 Status digital input I1

301 Status digital input I2

302 Status digital input I3

303 Status digital input I4

304 Status digital input I5

305 Status digital input I6

306 Status digital input I7

307 Status digital input I8

308 Status digital input I9

309 Status digital input I10

400 Status relay output U1

401 Status relay output U2

402 Status relay output U3

403 Status relay output U4

404 Status relay output U5

405 Status relay output U6

406 Status relay output U7

407 Status relay output U8

408 Status relay output U9

409 Status relay output U10

410 Status relay output U11

411 Status relay output U12

420 Setting relay output U1

421 Setting relay output U2

422 Setting relay output U3

423 Setting relay output U4

424 Setting relay output U5

425 Setting relay output U6

426 Setting relay output U7

427 Setting relay output U8

428 Setting relay output U9

429 Setting relay output U10

430 Setting relay output U11

431 Setting relay output U12

440 Enable modify relay output U1

441 Enable modify relay output U2

442 Enable modify relay output U3

443 Enable modify relay output U4

READ/ RESET WRITE VALUE

R/W 0

BIT

MODBUS ADDRESS

DESCRIZIONE

444 Enable modify relay output U5 via serial comm.

445 Enable modify relay output U6 via serial comm.

446 Enable modify relay output U7 via serial comm.

447 Enable modify relay output U8 via serial comm.

448 Enable modify relay output U9 via serial comm.

449 Enable modify relay output U10 via serial comm.

450 Enable modify relay output U11 via serial comm.

451 Enable modify relay output U12 via serial comm.

500 Status alarm no. 1 input AN1

501 Status alarm no. 2 input AN1

502 Status alarm no. 1 input AN2

503 Status alarm no. 2 input AN2

504 Status alarm no. 1 input AN3

505 Status alarm no. 2 input AN3

506 Status alarm no. 1 input AN4

507 Status alarm no. 2 input AN4

600 Control Run/stop AN1 (1 Run, 0 Stop)

601 Control Run/stop AN2 (1 Run, 0 Stop)

602 Control Run/stop AN3 (1 Run, 0 Stop)

603 Control Run/stop AN4 (1 Run, 0 Stop)

700 Start auto-tune PID control AN1 (1 Start)

701 Start auto-tune PID control AN2 (1 Start)

702 Start auto-tune PID control AN3 (1 Start)

703 Start auto-tune PID control AN4 (1 Start)

READ/ RESET WRITE VALUE

R/W 0

R/W TAMP

PIXSYS Via Tagliamento, 18 30030 Mellaredo di Pianiga (VE)
www.pixsys.net e-mail: sales@pixsys.net – support@pixsys.net

Software Rev. 1.01

2300.10.054-RevA

010704

2300.10.054-A

Documents / Resources

Pixsys PL-300 Temperature Controller [pdf] User Manual
PL-300 Temperature Controller, PL-300, Temperature Controller, Controller

References

User Manual

Pixsys PL-300 Temperature Controller User Manual

PL-300 Temperature Controller

Specifications

Product Usage Instructions:

Frontal Panel

Size and Installation

Electrical Wirings

FAQ (Frequently Asked Questions)

Q: What is the weight of the product?

Q: What are the available communication protocols?

Documents / Resources

References

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