User manual - ATR171 25
Modbus
address
Description
Read
Write
Reset
value
1024
Bit 4 = Error AI2 (probe 2)
Bit 5 = Generic error
Bit6 = Hardware error
Bit 7 = Missing calibration error
Bit 8 = Incongruous control parameters
Bit 9 = Incongruous alarm parameters
Bit 10 = Incongruous retransmission par.
Bit 11 = Incorrect visualization parameters error
Bit 12 = Incorrect remote setpoint par. error
RO 0
1015 Cold junction temperature (with decimal point) RO ?
1016
Start / Stop
0 = Controller in STOP 1 = Controller in START
R/W 0
1017
Lock conversion ON/OFF
0 = Lock conversion off 1 = Lock conversion on
R/W 0
1018
Tuning ON/OFF
0 = Tuning off 1 = Tuning on
R/W 0
1019
Automatic / Manual selection
0 = Automatic 1 = Manual
R/W 0
1020 OFF LINE* time (milliseconds) R/W 0
110 0 Process with decimal point RO ?
1101 Setpoint 1 with decimal point RW EEPROM
1102 Setpoint 2 with decimal point RW EEPROM
1103 Setpoint 3 with decimal point RW EEPROM
110 4 Setpoint 4 with decimal point R/W EEPROM
1105 Alarm 1 with decimal point R/W EEPROM
1106 Alarm 2 with decimal point RW EEPROM
1107 Alarm 3 with decimal point RW EEPROM
1108 Setpoint gradient with decimal point RO EEPROM
1109 Percentage heating output (0-1000) R/W 0
1110 Percentage heating output (0-100) RW 0
1111 Percentage cooling output (0-1000) RO 0
1112 Percentage cooling output (0-100) RO 0
2001 Parameter 1 R/W EEPROM
... ... ... ...
2085 Parameter 85 R/W EEPROM
4001 Parameter 1** R/W EEPROM
... ... ... ...
4085 Parameter 85 R/W EEPROM
* If it is 0, control is desabled. If it is different from 0, it is “maximum time that can elapse between two
pollings before the controller goes off-line”. If it goes Off-line, the controller goes to Stop mode, the control
output is desabled, but the controllers keeps alarms activated.
** Parameters changed using serial address from 4001 to 4085 are saved in eeprom only after 10’’ after the
last writing of parameters.
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