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
1100
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
1104
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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