Hardware Settings - Endress+Hauser Proline 100 Modbus RS485 Brief Operating Instructions

Proline 100 Modbus RS485
Modbus RS485 intrinsically safe
1
A
B
5
 8 Connection example for Modbus RS485 intrinsically safe
1 Control system (e.g. PLC)
2 Cable shield, observe cable specifications
3 Safety Barrier Promass 100
4 Observe cable specifications
5 Non-hazardous area
6 Non-hazardous area and Zone 2/Div. 2
7 Intrinsically safe area
8 Transmitter
5.4

Hardware settings

5.4.1 Enabling the terminating resistor
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.
Endress+Hauser
2
A
B
L- L+
3
A
B
L+
L-
6
Electrical connection
4
A
B
L+
L-
7
8
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