Siemens IM 155-6 PN ST Equipment Manual page 29

RN/ER/MT LED on the interface module
Table 5- 1 RN/ER/MT status and error displays
LEDs
RN ER
(RUN) (ERROR)
Off Off
On On
Flashes Off
Not rele-
vant
On
Not rele-
vant
Flashes
Not rele- Not rele-
vant vant
Flashes Flashes
* PWR LED on (on the interface module): Check the backplane bus for a short circuit.
IM 155-6 PN ST interface module (6ES7155-6AU01-0BN0)
Equipment Manual, 10/2020, A5E03576904-AE
MT
(MAINT)
Missing or insufficient supply voltage
on interface module.
Off
Test of LEDs during startup: The three
LEDs light up simultaneously for ap-
On
proximately 0.25 s.
Interface module is deactivated.
Off
Interface module is not configured.
ET 200SP starts up.
ET 200SP is configured.
ET 200SP is reset to factory settings.
Not rele- ET 200SP is currently exchanging data
vant with the IO controller.
Not rele- Group errors and group error channels.
vant
The configured structure does not cor-
respond to the actual structure of the
ET 200SP .
Invalid configuration states.
Parameter error in the I/O module.
Maintenance
On
The "Node flash test" is run (the LEDs
LK1 and LK2 of the PROFINET interface
Flashes
also flash).
Hardware or firmware defective (the
LEDs LK1 and LK2 of the PROFINET
interface do not flash).
Interrupts, diagnostics, error, and system messages
Meaning
5.1 Status and error displays
Remedy
Check the supply voltage or turn in on
at the interface module. *
-
Activate the interface module with the
configuration software or the user pro-
gram.
Configure the interface module with
the configuration software.
-
Evaluate the diagnostics data and rem-
edy the error.
Check the structure of the ET 200SP to
see whether a module is missing or
defective, or whether a non-configured
module is plugged.
See section Invalid configuration states
of the ET 200SP on PROFINET IO
(Page 37)
Evaluate the display of the module
status in STEP 7 and eliminate the error
in the respective I/O module.
See section Maintenance events
(Page 32)
-
Run a firmware update. If the error
persists, contact Siemens Industry
Online Support.
Replace the interface module.
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