Electrical connection
Proline Promass A 100
36
Hauser
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
11
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.
Summary of Contents for Proline Promass A 100
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