Installation, connecting up, commissioning, operation
3.3 Operating mode of the CPU: Reaction of the CP
CP 1543-1
Operating Instructions, 12/2019, C79000-G8976-C289-08
29
Ethernet interface
The table below shows the pin assignment of the Ethernet interface (RJ-45 jack). The
assignment corresponds to the Ethernet standard IEEE 802.3.
Table 3- 1 Pin assignment of the Ethernet interface
10/100 Mbps or gigabit operation
You will find additional information on the topics of "Connecting up" and "Accessories (RJ-45
plug)" in the system manual:
Link: (https://support.industry.siemens.com/cs/ww/en/view/59191792)
3.3 Operating mode of the CPU: Reaction of the CP
Switching the CPU: RUN → STOP
You can switch the operating mode of the CPU between RUN and STOP via STEP 7.
Note
RUN/STOP LED of the CP
The green RUN/STOP LED of the CP continues to be lit green regardless of the STOP mode
of the CPU.
In the STOP state of the CPU, the CP remains in the RUN state. The following behavior
applies to the CP:
● This applies to established connections (ISO Transport, ISO-on-TCP, TCP, UDP):
– Programmed connections are retained.
– Configured connections are terminated.
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