Siemens SIMATIC NET S7-400 Manual page 30

LEDs
CP communications status / LED display patterns
LED
TXD (green)
RXD (green)
X1P1
X2P1 / X2P2
(green / yellow)
Table 4- 2
Symbol
Meaning
Module identification
Note
Module identification - make the port LEDs flash briefly
With the help of Web diagnostics or the online functions of STEP 7, you can search for and
identify the module in the rack. The options for this are as follows:
• In Web diagnostics
You click the "Flash" button in the update center.
• In STEP 7
You click the "Flash" button in the "Browse network" dialog
When the "Flash" button is clicked, the port LED of the enabled interface flashes briefly.
See also
Loading new firmware (Page 51)
30
Display
Legend
ON
Meaning
CP sending over Ethernet.
CP is receiving over Ethernet.
Port has no connection over Ethernet.
Existing connection over port to Ethernet (LINK status).
LED flashes yellow (constant light green):
Port is sending / receiving via Ethernet.
Note:
Here, all received / sent frames are signaled separately for
each port.
There is permanent data transfer via Ethernet at the port.
OFF
Manual, 03/2019, C79000-G8976-C299-04
-
Flashing any
CP 443-1 RNA