Modbus addresses TOPAX® MC
44
© Lutz-Jesco GmbH 2020
BA-46020-02-V04
Multi-Channel Controller
TOPAX
®
MC
Operating instructions
Address
Read
Write
Description
Meaning
2227
x
Alarm status 3
If the bit is set, the associated alarm or
message is active.
Message or alarm
Bit
Setpoint changeover
Measuring water shortage
External stop
Low level alert 1
Low level alert 2
Low level alert 3
Low level alert 4
Main alarm 1
Main alarm 2
Main alarm 3
Main alarm 4
Digital input 1
Digital input 2
Digital input 3
Digital input 4
Digital input 5
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2228
x
Alarm status 4
If the bit is set, the associated alarm or
message is active.
Message or alarm
Bit
Digital input 6
Digital input 7
Digital input 8
Sensor 1 calibration not OK
Sensor 2 calibration not OK
Sensor 3 calibration not OK
Sensor 4 calibration not OK
Temperature 1 calibration not OK
Temperature 2 calibration not OK
Temperature 3 calibration not OK
Temperature 4 calibration not OK
Output 1 calibration not OK
Output 2 calibration not OK
Output 3 calibration not OK
Output 4 calibration not OK
Next service due
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2229
x
Alarm status 5
If the bit is set, the associated alarm or
message is active.
Message or alarm
Bit
Sensor change sensor 1 due
Sensor change sensor 2 due
Sensor change sensor 3 due
Sensor change sensor 4 due
0
1
2
3
2235
x
Temperature input 1
235 = 23.5 °C
With an inactive temperature, the return is -10000
(2 byte signed int)
2236
x
Temperature input 2
2237
x
Temperature input 3
2238
x
Temperature input 4
Tab. 29: Modbus addresses
