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1. Supporting transmission speed: 2400, 4800, 9600, 19200, 38400bps
2. Non-supported formats: 7, N, 1 or 8, O, 2 or 8, E, 2
3. Communication protocol: Modbus (ASCII or RTU)
4. Function code: 03H to read the contents of register (Max. 8 words). 06H to write 1 (one) word into register.
02H to read the bits data (Max.
5. Address and Content of Data Register:
Address
Content
1000H Process value (PV)
1000H
Process value (PV)
1001H Set point (SV)
1002H Upper-limit of temperature
range
1003H Lower-limit of temperature
range
1004H
Input temperature sensor type
1005H Control method
1006H Heating/Cooling control
selection
1007H 1st group of Heating/Cooling
control cycle
1008H 2nd group of Heating/Cooling
control cycle
1009H PB Proportional band
100AH Ti Integral time
100BH Td Derivative time
100CH Integration default
100DH Proportional control offset
error value, when Ti = 0
100EH The setting of COEF when
Dual Loop output control are
used
100FH The setting of Dead band
when Dual Loop output control
are used
1010H Hysteresis setting value of the
1st output group
1011H Hysteresis setting value of the
2nd output group
1012H Output value read and write of
Output 1
1013H Output value read and write of
Output 2
1014H Upper-limit regulation of
analog linear output
1015H Lower-limit regulation of
analog linear output
RS-485 Communication
16 bits). 05H to write 1 (one) bit into register.
Measuring unit is 0.1, updated one time in 0.4 second
The following reading value display indicates error occurs:
8002H : Initial process (Temperature value is not got yet)
8003H : Temperature sensor is not connected
8004H : Temperature sensor input error
8006H : Cannot get temperature value, ADC input error
8007H : Memory read/write error
o
o
Unit is 0.1,
C or
F
The data content should not be higher than the temperature range
The data content should not be lower than the temperature range
Please refer to the contents of the "Temperature Sensor Type and
Temperature Range" for detail
0: PID, 1: ON/OFF, 2: manual tuning, 3: PID grogram control
0: Heating, 1: Cooling, 2: Heating/Cooling, 3: Cooling/Heating
0~99, 0:0.5 sec
0~99, 0:0.5 sec
0.1 ~ 999.9
0~9999
0~9999
0~100%, unit is 0.1%
0~100%, unit is 0.1%
0.01 ~ 99.99
-999 ~ 9999
0 ~ 9999
0 ~ 9999
Unit is 0.1%, write operation is valid under manual tuning mode only.
Unit is 0.1%, write operation is valid under manual tuning mode only.
1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output)
1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output)
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Explanation
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