Siemens SIMATIC PN/CAN LINK

SIMATIC PN/CAN LINK
Operating Instructions, 03/2022, A5E39895388-AC
139
Diagnostics
11
11.1 Status LEDs
11.1.1 Operating state of the PN/CAN LINK / PROFINET diagnostics
Operating state of the PN/CAN LINK / PROFINET diagnostics
The LEDs for visualization of the PN/CAN LINK operating states and the PROFINET ports are
located on the front of the housing (Design (Page 32)).
RUN
LED
ERROR
LED
MAINT
LED
1)
Operating
state
Description
On On On
Power-up test /
Serious error
• For approximately 1 second: LED
test during startup
• Longer than 1 second: HW error
detected during power-up test or
other serious error
Off Off Off
System run-up
• System not completely booted yet
but power-up test is complete.
Flashes
Off Off
Not connected to S7
controller
• No "IO controller" connection
(Application Relation) established or
configuration not yet complete.
On
x
Off
Connected to S7
controller
• "IO controller" connection
(Application Relation) established
and configuration complete.
x
Flashes
Off
Error state
• "IO controller" connection
(Application Relation) established
and configuration complete, but an
error has occurred:
– Diagnostic message to the S7
controller is pending or
– Incorrect configuration by the S7
controller
Flashes for at least 3 seconds.