Proline Promass F 100 Modbus RS485
Electrical connection
37
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
2
1
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
