Proline Promag H 100
Electrical connection
Hauser
35
390 Ω
DIP 1
5V
26
27
220 Ω
DIP 2
0V
390 Ω
DIP 3
OFF ON
1
2
3
4
Bus polarisation
Bus termination
Bus polarisation
Not used
4.
1.
2.
3.
A0021274
12
Termination using DIP switches on the I/O electronics module (for baud rates < 1.5 MBaud)
Modbus RS485
To avoid incorrect communication transmission caused by impedance mismatch, terminate
the Modbus RS485 cable correctly at the start and end of the bus segment.