Navigator 540 | Transmitter |
COM/AWT540/PB–EN Rev. C
41
B.2 Digital I/O status
B.3 Alarm acknowledgement
B.4 Action commands
B.5 Read-only, single precision float
Modbus
address
Description
Notes
152
Digital output 1 state
0 – Low
1 – High
153
Digital output 2 state
154
Digital output 3 state
155
Digital output 4 state
156
Digital output 5 state
157
Digital output 6 state
158
Digital input 1 state
159
Digital input 2 state
160
Digital input 3 state
161
Digital input 4 state
162
Digital input 5 state
163
Digital input 6 state
Table B.1: Digital I/O status (input coils)
Modbus
address
Description
Notes
0
Alarm 1 acknowledge state
0 – Unacknowledged
1 – Acknowledged
1
Alarm 2 acknowledge state
2
Alarm 3 acknowledge state
3
Alarm 4 acknowledge state
4
Alarm 5 acknowledge state
5
Alarm 6 acknowledge state
6
Alarm 7 acknowledge state
7
Alarm 8 acknowledge state
8
Acknowledge alarm 1
9
Acknowledge alarm 2
10
Acknowledge alarm 3
11
Acknowledge alarm 4
12
Acknowledge alarm 5
13
Acknowledge alarm 6
14
Acknowledge alarm 7
15
Acknowledge alarm 8
Table B.2: Alarm acknowledgement (output coils)
Modbus
address
Description
Notes
500
Start zero calibration sensor 1
Writing any value from
0 to 255 starts the
procedure.
Calibration through
modbus is not possible
for ADS551 sensors.
501
Start span calibration sensor 1
502
Start two point calibration sensor 1
503
Start regeneration sensor 1
504
Start zero calibration sensor 2
505
Start span calibration sensor 2
506
Start two point calibration sensor 2
507
Start regeneration sensor 2
508
Start zero calibration sensor 3
509
Start span calibration sensor 3
510
Start two point calibration sensor 3
511
Start regeneration sensor 3
512
Start zero calibration sensor 4
513
Start span calibration sensor 4
514
Start two point calibration sensor 4
515
Start regeneration sensor 4
Table B.3: Action commands (output coils)
Modbus
address
Description
Notes
30000
Sensor 1 – Concentration
See engineering range
table
(Appendix C, page 52)
30002
Sensor 1 – Temperature
30004
Sensor 2 – Concentration
30006
Sensor 2 – Temperature
30008
Sensor 3 – Concentration
30010
Sensor 3 – Temperature
30012
Sensor 4 – Concentration
30014
Sensor 4 – Temperature
Table B.4: Measurement values (input coils)