Endress+Hauser Proline Promass F 100 - Special Connection Instructions

Proline Promass F 100 Modbus RS485 Electrical connection
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7.3 Special connection instructions
7.3.1 Connection examples
Modbus RS485
Modbus RS485, non-hazardous area and Zone 2/Div. 2
2
1
A
B
3
4
4
A
B
A
B
A0028765
 14 Connection example for Modbus RS485, non-hazardous area and Zone 2/Div. 2
1 Control system (e.g. PLC)
2 Cable shield: the cable shield must be grounded at both ends to comply with EMC requirements; observe cable
specifications →  28
3 Distribution box
4 Transmitter
Modbus RS485 intrinsically safe
21
A
B
3
A
B
L+
L-
L- L+
A
B
5 6 7
4
8
A
B
L+
L-
A0028766
 15 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