Product overview, functions
2.7 Gigabit interface
CP 1543-1
Operating Instructions, 12/2019, C79000-G8976-C289-08
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Meaning of the LED displays of the Ethernet interface: X1 P1
The LED LINK/ACT (two color green/yellow) is assigned to the port of the Ethernet interface.
The table below shows the LED patterns.
Table 2- 5
Meaning of the "LINK/ACT" LED
LINK/ACT
Meaning
green off
yellow off
No connection to Ethernet
There is no Ethernet connection between the Ethernet
interface of the CP and the communications partner.
At the current time, there is no data being received/sent
via the Ethernet interface.
flashing green
yellow off
The "node flash test" is being performed.
green on
yellow off
Connection to Ethernet exists.
There is an Ethernet connection between the Ethernet
interface of your CP and a communications partner.
green on
yellow flickers
At the current time, data is being received/sent via the
Ethernet interface of the Ethernet device of a communi-
cations partner on Ethernet.
2.7
Gigabit interface
Ethernet interface with gigabit specification and security access
The CP has an Ethernet interface according to the gigabit standards IEEE 802.3. The
Ethernet interface supports autocrossing, autonegotiation and autosensing.
The Ethernet interface allows a secure connection to external networks via a firewall. The
CP provides the following protective function:
●
Protection of the S7-1500 station in which the CP is operated;
●
Protection of the underlying company networks connected to the other interfaces of the
S7-1500 station.
You will find the pin assignment of the sub RJ-45 jack in section Installing and