Mode Of The Cpu - Effect On The Cp - Siemens S7-1500 Operating Instructions Manual

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
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

Mode of the CPU - effect on the CP

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 CP behaves as described below.
Changing the CPU from RUN to STOP:
When the CPU is in STOP mode, the CP remains in RUN and behaves as follows:
● For established connections (ISO transport, ISOonTCP, TCP, UDP connections), the
following applies depending on the configuration:
– Programmed connections are retained.
– Configured connections are terminated.
● The following functions remain enabled:
– The configuration and diagnostics of the CP (system connections for configuration,
– Web diagnostics
– S7 routing function
– Time-of-day synchronization
CP 1543-1
Operating Instructions, 05/2017, C79000-G8976-C289-07
Pin assignment of the Ethernet interface
View Pin 10/100 Mbps operation
Signal name
1
2
3
4
5
6
7
8
diagnostics, and PG channel routing are retained);
Installation, connecting up, commissioning, operation
3.3 Mode of the CPU - effect on the CP
Pin assignment
TD Transmit Data +
TD_N Transmit Data -
RD Receive Data +
GND Ground
GND Ground
RD_N Receive Data -
GND Ground
GND Ground
10/100 Mbps or gigabit operation
Signal name Pin assignment
D1+ D1 bidirectional +
D1- D1 bidirectional -
D2+ D2 bidirectional +
D3+ D3 bidirectional +
D3- D3 bidirectional -
D2- D2 bidirectional -
D4+ D4 bidirectional +
D4- D4 bidirectional -
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