Seneca Z-DAQ-PID User Manual Download Page 7 | Manualshive

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USER MANUAL – Z-DAQ-PID

7

PT500

-200°C..750°C

NI100

-60°C..250°C

4. Operation Modes

There are six possible functioning modalities for the Z-DAQ-PID, with reference to the following
figure:

- conversion with PID, analog output

- conversion with PID, ON/OFF output

- conversion without PID, analog output

- conversion without PID, ON/OFF output

- manual (constant output), analog output

- manual (constant output), ON/OFF output

With reference to the following figure, the lowest part shows the Z-DAQ-PID setting procedure in
three steps: input setting, operating modality setting, output setting.

In particular, there are three operating modes, each of them allows to supply a ON/OFF output or
an analog output:

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Summary of Contents for Z-DAQ-PID

Page 1: ...ogrammation and set up is allowed only for authorized operators these ones must be people physically and intellectually suitable Set up must be performed only after a correct installation and the user must perform every operation described in the installation manual carefully Seneca is not considered liable of failure breakdown accident caused for ignorance or failure to apply the indicated requir...

Page 2: ...ature Detector m voltmeter Analog Output voltage type active current type passive current type Slew rate burn out output limiters setup Modbus address and baudrate configurable by Dip Switches 1 Features INPUT Number 1 Resolution 15 bits Sampling time Configurable between 5 ms Fast no rejection 16 66 ms rejection to 60 Hz or 20 ms rejection to 50 Hz Filter Configurable between 0 no filter is appli...

Page 3: ...curs Millivoltmeter type IN Scale range is configurable from 10 mV to 80 mV Input impedance 5 M Errors related to max measuring range Accuracy Thermal stability Linearity error EMI Voltage or current type input 0 1 0 01 K 0 05 1 2 TC type input J K E T N 0 1 0 01 K 0 2 C 1 2 TC type input R S 0 1 0 01 K 0 5 C 1 2 TC type input B 3 0 1 0 01 K 1 5 C 1 2 Cold junction compensation for TC type input 2...

Page 4: ...ue 21 mA Active current the output already powered on needs to be connected to the passive module passive current the output powered off needs to be connected to the active module Errors related to max measuring range Errors related to max measuring range Accuracy Thermal stability Linearity error Voltage type OUT 0 1 0 01 K 0 01 1 Voltage type OUT active or passive 0 1 0 01 K 0 01 1 CONNECTIONS R...

Page 5: ...UPPLY Supply voltage 10 40 Vdc or 19 28 Vac 50Hz 60Hz Power consumption Min 0 5 W Max 2 W The power supply transformer necessary to supply the module must comply with EN60742 Isolated transformers and safety transformers requirements ...

Page 6: ...es are shown in the following tables for Thermocouple TC type Scale range TC type Scale range J 210 C 1200 C S 50 C 1768 C K 200 C 1372 C R 50 C 1768 C E 200 C 1000 C B 250 C 1820 C N 210 C 1300 C T 200 C 400 C The input scale range values for RTD are shown in the following table RTD type Scale range RTD type Scale range PT100 210 C 650 C PT1000 200 C 210 C ...

Page 7: ...N OFF output conversion without PID analog output conversion without PID ON OFF output manual constant output analog output manual constant output ON OFF output With reference to the following figure the lowest part shows the Z DAQ PID setting procedure in three steps input setting operating modality setting output setting In particular there are three operating modes each of them allows to supply...

Page 8: ...d burn out allows to overwrite the OUT Fault value reg 40020 40021 to the reg 40105 40106 burn out overwriting is available only for analog output Operating modality is configurable by software or by FunctionMod register 40007 15 8 with reference to the RS485 registers table There are two output type of Z DAQ PID regardless of operating modality Out type Description Analog OUT is an analog signal ...

Page 9: ...w state ON OFF output reg 40030 The cycle time is reg 40028 constant frequency of ON OFF output 1 cycle time CONVERSION WITH PID In Conversion with PID operating mode the output analog or ON OFF is a function of the analog input processed by the PID transfer function Moreover output is directly proportional to the analog input ...

Page 10: ...et point and process value Signal error e process value set point means PID regulation direct type for example used for cooling Signal error e set point process value means PID regulation reverse type for example used for heating The PID regulation is described by the following parameters Term Parameter Meaning Register Proportional BP Proportional band 40025 Integral Ti Integral time 40026 Deriva...

Page 11: ...Settling time increases If Td increases Derivative action strengths Derivative action weaknesses Settling time decreases Noise is amplified 5 Setup Input setting To set Z DAQ PID input characteristics configure the following registers Description of register Option Meaning Address Input type V mA C mV see RS485 register table 40003 Cold junction compensation if TC type input 0 deactivated 1 activa...

Page 12: ... analog output 1 Conversion without PID analog output 2 Conversion with PID ON OFF output 3 Conversion without PID ON OFF output 4 Manual analog output 5 Manual ON OFF output 40007 15 8 Cycle time Time in sec 10 if output modality ON OFF 40028 Minimum time of high state ON OFF output Time in sec 10 if output modality ON OFF 40029 Minimum time of low state ON OFF output Time in sec 10 if output mod...

Page 13: ...ality conversion with PID 40026 Derivative time Time in sec 10 if operating modality conversion with PID 40027 Offset Value in 100 with reference to the output scale range if operating modality conversion with PID 40024 Output setting To set Z DAQ PID output characteristics configure the following registers Description of register Option Meaning Address Output type 0 current 1 voltage 40004 8 Outp...

Page 14: ...Value in with reference to the output scale range 40016 MSW 40017 LSW 6 Dip switches table In the following tables box without circle means Dip Switch 0 OFF state box with circle means Dip Switch 1 ON state BAUD RATE Dip Switches SW1 1 2 Meaning Baud rate 9600 Baud Baud rate 19200 Baud Baud rate 38400 Baud Baud rate 57600 Baud ADDRESS Dip Switches SW1 3 4 5 6 7 8 Meaning Address and Baud Rate are ...

Page 15: ...es in 32bits are stored into 2 consecutive registers for example If a floating point 32 bits is stored into registers 40135 and 40136 the Most significant word is the register 40135 the less significant word is the 40136 So the 32bits value is obtained by the following relation 𝑉𝑅𝑀𝑆 𝐴 𝑅𝑒𝑔40136 𝑅𝑒𝑔40135 216 𝑅𝑒𝑔40136 𝑅𝑒𝑔40135 65536 Abbreviation used In the following table this abbreviations are used...

Page 16: ...igned 16 bits register Signed 16 bits 16 bits register with sign Float 32 bits Floating point single precision 32 bits IEEE 754 register 0x Hexadecimal Value Default communication parameters RS485 38400 baud 8N1 Default communication parameters USB 38400 baud 8N1 RS485 register table Name Range Interpretation of register R W Default Address MachineID MSB LSB R 40001 Id_Code Module ID 0x42 Bit 15 8...

Page 17: ... isn t 1 there is Bit 0 Rejection Burn Bit R W 40006 These bits aren t used Bit 15 10 Rejection 0b00 50Hz 0b01 60Hz 0b10 No rejection fast sampling 0b00 Bit 9 8 These bits aren t used Bit 7 1 Burn out enabling 0 deactivated 1 activated if 1 fault output value is overwritten into output register 0 Bit 0 Filter Cold junction Bit LSB R W 40005 These bits aren t used Bit 15 9 Cold junction compensatio...

Page 18: ...esponse it represents the number of the pauses between the end of Rx message and the start of Tx message from 0x00 0 to 0xFF 255 1 pause 6 characters 0 Bit 7 0 Function modality Word R W 40007 Functioning modality 0 Conversion with PID analog output 1 Conversion without PID analog output 2 Conversion with PID ON OFF output 3 Conversion without PID ON OFF output 4 Manual analog output 5 Manual ON O...

Page 19: ... 100 of the Input Scale range mA MSW FP between IN SS IN ES FP 32bit_MSW R 40091 mA LSW FP 32bit_LSW R 40092 Electric measure of input mA if current type input V MSW FP between IN SS IN ES FP 32bit_MSW R 40093 V LSW FP 32bit_LSW R 40094 Electric measure of input V if voltage type input POT MSW FP between IN SS IN ES FP 32bit_MSW R 40099 POT LSW FP 32bit_LSW R 40100 Electric measure of input if pot...

Page 20: ...ure of input if RTD type input RTD MSW FP between IN SS IN ES FP 32bit_MSW R 40089 RTD LSW FP 32bit_LSW R 40090 Electric measure of input C if RTD type input 3wires RTD MSW FP 32bit_MSW R 40095 3wires RTD LSW FP 32bit_LSW R 40096 Measure of the wire resistance for 3 wires RTD connection if RTD type input 4wires RTD MSW FP 32bit_MSW R 40097 4wires RTD LSW FP 32bit_LSW R 40098 Measure of the wire re...

Page 21: ...put V if voltage type output 20 mA OUT MSW FP 32bit_MSW R 40105 OUT LSW FP 32bit_LSW R 40106 Output value mA if current type output V if voltage type output OUT Word R 40109 Output value µA if current type output mV if voltage type output OUT Fault MSW FP 32bit_MSW R W 40020 OUT Fault LSW FP 32bit_LSW R W 40021 Fault output value measure unit is the same of output Reg 40105 40106 are equal to reg ...

Page 22: ...erating modality conversion with PID 100 Integral time Word R W 40026 PID regulation integral time sec 10 0 there is no integral action if operating modality conversion with PID 2400 sec 10 240sec Derivative time Word R W 40027 PID regulation derivative time sec 10 0 there is no derivative action if operating modality conversion with PID 0 sec 10 Set point MSW FP 32bit_MSW R W 40022 Set point LSW ...

Page 23: ...range if it is equal to 0 it corresponds to the 0 of the Output Scale range if it is equal to 1 it corresponds to the 100 of the Output Scale range if operating modality conversion with PID 5000 50 Slew Rate enabling Word R W 40031 Output slew rate 0 deactivated 1 activated 1 Slew Rate Word R W 40032 Output slew rate sec 100 sec Cycle Time From 1 to 1310 Word R W 40028 Output cycle time sec 10 if ...

Page 24: ...USER MANUAL Z DAQ PID 24 0xBEEE decimal 48878 Save in Flash the actual Setup registers with R W Note The Flash can be written for a Maximum of 20000 times ...

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