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.
Содержание Proline Promass A 100
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