Siemens UL 489 - Fitting COM Module on Fixed-Mounted Breaker

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Fitting COM module on the fixed-mounted breaker
Connecting wires
→ Circuit diagrams (page 8-1)
(1) Secondary connector X8
(2) Connecting cable to first external c-module or 
terminating resistor
(3) Connecting cable to secondary connector X8
Note
If necessary, missing auxiliary terminals may be added 
(receptacle, auxiliary connectors and sliding contact module 
for guide frames). → (page 5-27)
Designation Assignment Terminal
X8-1 c - X8.1
X8-2 c + X8.2
X8-3 24 V DC + X8.3
X8-4 24 V DC GND X8.4
NOTICE
If no external c-modules are connected to the COM
module, the terminating resistor must be plugged into the
cterminal. Absence of the terminating resistor can
cause errors and potentially loss of communications.
PZ 2
2
1
COM module
Operating module
3 x Plastite RX-PT 8-16x12
3
PROFINET IO
Modbus TCP
PROFIBUS DP
Modbus RTU