Siemens SIMATIC ET 200SP Equipment Manual page 37

Interrupts, diagnostics, error, and system messages
6.1 Status and error displays
Meaning of the LEDs
The meaning of the status and error messages is described in the following tables.
RN/ER/MT LED on the interface module
Table 6- 1 RN/ER/MT status and error displays
LEDs
RN ER
(RUN) (ERROR)
Off Off
On On
Not rele-
vant
Flashes
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.
36
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.
Not rele- Interface module is deactivated.
vant
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).
Meaning
IM 155-6 PN ST Interface Module (6ES7155-6AU02-0BN0)
Equipment Manual, 11/2023, A5E53132379-AA
Remedy
Check the supply voltage or switch it 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 45)
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 43)
-
Restart the device by disconnecting
and reconnecting the supply voltage.
Perform a firmware update.
If the error persists, contact
Siemens Industry Online Support.
Replace the interface module.
You can read out the service data with
TIA Portal as of V18 and MFCT.