Terminal Assignment; Mode Of The Cpu - Effect On The Cm - Siemens CM 1542-1 Operating Instructions Manual

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
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.
CM 1542-1
Operating Instructions, 07/2019, C79000-G8976-C355-04
Pin assignment of the PROFINET interface with 2-port switch
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Installation, connecting up, commissioning, operation
Terminal
TD Transmit Data +
TD_N Transmit Data -
RD Receive Data +
GND Ground
GND Ground
RD_N Receive Data -
GND Ground
GND Ground
3.3 Terminal assignment
Designation
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