Interrupts, error messages, diagnostics and system alarms
5.1 Status and error displays
Interface module IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0)
36 Manual, 10/2018, A5E03915895-AH
RN/ER/MT LEDs on the interface module
Table 5- 1 Status and error displays of RN/ER/MT LEDs
Off
Off
Off
Missing or insufficient supply voltage on
interface module.
Check the supply voltage or turn it on at the
interface module.*
On
On
On
Test of LEDs during startup: The three
LEDs light up simultaneously for ap-
-
Flashes
Not relevant
Not rele-
vant
Interface module is deactivated. Activate the interface module with the con-
figuration software or via the user program.
Interface module is not configured. Configure the interface module with the
-
ET 200SP is being assigned parame-
ET 200SP is being reset to factory
Not relevant
Not rele-
vant
ET 200SP is currently exchanging data
with the IO controller.
-
Not rele-
vant
Flashes
Not rele-
vant
Group errors and group error channels. Evaluate the diagnostics and eliminate the
The preset configuration does not
match the actual configuration of the
Check the configuration of the ET 200SP to
see whether a module is missing, faulty or
Invalid configuration states. For additional information, see section
Invalid configuration states of the ET
200SP on PROFINET IO (Page 46)
Parameter assignment error in the I/O
module.
Evaluate the display of the module status in
STEP 7. Eliminate the error in the corre-
Not rele-
vant
Not relevant
Maintenance For additional information, see section
Maintenance events (Page 42)
Flashes
Flashes
Flashes
The "Node flash test" is run (LEDs LK1
and LK2 of the PROFINET interface
-
Hardware or firmware defective (LEDs
LK1 and LK2 of the PROFINET inter-
face do not flash).
Run a firmware update. If the error persists,
contact Siemens Industry Online Support.
Replace the interface module.
* PWR LED on (on the interface module): Check the backplane bus for a short-circuit.