Siemens SIMATIC NET TeleControl S7-1200 CP 1243-1 - Page 24

LEDs and connectors
2.2 LEDs
CP 1243-1
24 Operating Instructions, 12/2016, C79000-G8976-C365-02
DIAG
(red / green)
-
LINK
(green)
CONNECT
(green)
VPN
(green)
SERVICE
(green)
Meaning
(if more than one point listed: alternative
meaning)
flashing red
- - Backplane bus error
Connection to Industrial Ethernet
- - - - Connection to Industrial Ethernet exists
green
- - -
• Connection to Industrial Ethernet being
established.
• IP address being obtained.
- - - - No connection to Industrial Ethernet
Connection to communications partners
green
- - Connection established to at least one
partner
green
- - Partner reachable, CPU in STOP mode
flashing
green
- - Partner not reachable, CPU in RUN mode
flashing
green
- - Partner not reachable, CPU in STOP mode
Connection for online functions
green
- - Connection for online functions established
green
- - Attempt to establish connection for online
functions
green
- - -
No connection to engineering station
VPN connection
green
- - VPN connection configured on the CP
- - - - No VPN connection configured on the CP