24 ATR171 -
User manual
Modbus
address
Description
Read
Write
Reset
value
0
Device type
RO
EEPROM
1
Sotware version
RO
EEPROM
5
Slave address
R/W
EEPROM
6
Boot version
RO
EEPROM
50
Automatic addressing
WO
-
51
Installation code comparison
WO
-
500
Loading Default values:
9999 restore all values
9998 restore all values except for baud-rate and
slave address
9997 restore all values except for baud-rate
9996 restore all values except for slave address
R/W
0
1000
Process (degrees with tenths of degree for
temperature sensors; digits for linear sensors)
RO
?
1001
Setpoint 1
R/W
EEPROM
1002
Setpoint 2
R/W
EEPROM
1003
Setpoint 3
R/W
EEPROM
1004
Setpoint 4
R/W
EEPROM
1005
Alarm 1
R/W
EEPROM
1006
Alarm 2
R/W
EEPROM
1007
Alarm 3
R/W
EEPROM
1008
Setpoint gradient
RO
EEPROM
1009
Relay status (0 = Off, 1 = On)
Bit 0 =
SSR
Bit 2 = Relay
Q2
Bit 1 = Relay
Q1
Bit 3 = Relay
Q3
RO
0
1010
Heating output percentage (0-10000)
RO
0
1011
Heating output percentage (0-10000)
RO
0
1012
Alarms status (0 = None, 1 = Active)
Bit 0 = Alarm 1
Bit 1 = Alarm 2
Bit 2 = Alarm 3
RO
0
1013
Manual reset: write 0 to reset all alarms.
In reading (0 = Not resettable, 1 = Resettable):
Bit 0 = Alarm 1
Bit 1 = Alarm 2
Bit 2 = Alarm 3
WO
0
1014
Error flags
Bit 0 = Eeprom writing error
Bit 1 = Eeprom reading error
Bit 2 = Cold juntion error
Bit 3 = Error AI1 (probe 1)
RO
0
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