Diagnostics; Status Leds; Operating State Of The Pn/Can Link / Profinet Diagnostics - Siemens Simatic Operating Instructions Manual

Diagnostics

10.1

Status LEDs

10.1.1

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 18)).
RUN
LED
On
Off
Flashes
On
Flashes
Flashes
1) The MAINT LED currently has no meaning.
x: LED state is irrelevant
SIMATIC PN/CAN LINK
Operating Instructions, 03/2018, A5E39895388-AB
ERROR MAINT
LED LED
1)
On On
Off Off
Off Off
x
Off
x
Off
Flashes
Off Off
Off
Flashes
Operating
state
Power-up test /
For approximately 1 second: LED test dur-
•
Serious error
ing startup
Longer than 1 second: HW error detected
•
during power-up test or other serious error
System run-up
System not completely booted yet but pow-
•
er-up test is complete.
Not connected to
No "IO controller" connection (Application
•
S7 controller
Relation) established or configuration not
yet complete.
Connected to S7
"IO controller" connection (Application Rela-
•
controller
tion) established and configuration com-
plete.
Error state
"IO controller" connection (Application Rela-
•
tion) established and configuration com-
plete, but an error has occurred:
–
–
Flashes for at least 3 seconds.
Firmware update
While the firmware is written to the flash
•
memory.
LEDs are flashing
3-second intervals
•
(triggered by TIA
Portal)
Description
Diagnostic message to the S7 controller
is pending or
Incorrect configuration by the S7 control-
ler
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