CPU modules
4.1 CPU module CPU555
SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
83
4.1.7
Pin assignments
PROFINET I/O interface (X1 P1 R PN (LAN), X1 P2 R PN (LAN), X1 P3 PN (LAN))
The PROFINET I/O IRT connection (10/100 Mbps) is connected to the 8-pole RJ-45 plug
socket with polarity reversal protection.
Table 4- 4
Pin assignment of X1 P1 R PN (LAN), X1 P2 R PN (LAN), X1 P3 PN (LAN)
(RJ-45 socket)
PIN
Designation
1
TXP (Transmit Data +)
2
TXN (Transmit Data -)
3
RXP (Receive Data +)
4
n.c.
5
n.c.
6
RXN (Receive Data -)
7
n.c.
8
n.c.
Enclosure PE (shield)
4.1.8
Note on firmware update
Note
Updating the firmware
•
Firmware updates are available, if needed, on the Internet
http://www.siemens.com/automation/service&support
) under "Downloads".
•
Check regularly if firmware updates are available.
Always install the latest firmware on the CPU555 to receive the latest security updates
and feature enhancements.
NOTICE
No firmware update during operation
Note that a firmware update cannot take place during operation but only at plant standstill.
NOTICE
Qualified Personnel
Only qualified personnel are permitted to perform the firmware update (see Qualified
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