Installation, connecting up, commissioning, operation
3.3 Terminal assignment
CM 1542-1
Operating Instructions, 07/2019, C79000-G8976-C355-04
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3.3
Terminal assignment
PROFINET interface X1 with 2-port switch
The table below shows the pin assignment of the ports of the PROFINET interface (RJ-45
jack). The assignment corresponds to the Ethernet standard IEEE 802.3.
Table 3- 1
Pin assignment of the PROFINET interface with 2-port switch
View
No.
Terminal
Designation
1
TD
Transmit Data +
2
TD_N
Transmit Data -
3
RD
Receive Data +
4
GND
Ground
5
GND
Ground
6
RD_N
Receive Data -
7
GND
Ground
8
GND
Ground
3.4
Mode of the CPU - effect on the CM
You can change the mode of the CPU between RUN and STOP using the STEP 7
configuration software. Depending on the operating status of the CPU, the CM behaves as
described below.
Changing the CPU from RUN to STOP
When the CPU is in STOP mode, the CM remains in RUN mode.
