Siemens CP 1543-1 - Mode of the CPU - Effect on the CP

Installation, connecting up, commissioning, operation
3.3 Mode of the CPU - effect on the CP
CP 1543-1
Operating Instructions, 05/2017, C79000-G8976-C289-07
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
View
Pin
10/100 Mbps operation
10/100 Mbps or gigabit operation
Signal name
Pin assignment
Signal name
Pin assignment
1
TD
Transmit Data +
D1+
D1 bidirectional +
2
TD_N
Transmit Data -
D1-
D1 bidirectional -
3
RD
Receive Data +
D2+
D2 bidirectional +
4
GND
Ground
D3+
D3 bidirectional +
5
GND
Ground
D3-
D3 bidirectional -
6
RD_N
Receive Data -
D2-
D2 bidirectional -
7
GND
Ground
D4+
D4 bidirectional +
8
GND
Ground
D4-
D4 bidirectional -
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,
diagnostics, and PG channel routing are retained);
– Web diagnostics
– S7 routing function
– Time-of-day synchronization