Siemens SIMATIC ET 200SP Manual page 36

Error display
Table 5- 3
Error type
(MAINT)
1
Note
A short circuit in the backplane bus supply or the bus connection supply is indicated by the
following LEDs:
• PWR LED: On
• RN, ER and MT LED: Off
More information on the BusAdapters and their status and error displays is available in the
BusAdapter (https://support.industry.siemens.com/cs/ww/en/view/109751716) manual.
Show not supported BusAdapter
The LEDs RN (flashes), ER (flashes) and MT (off) on the interface module indicate that no
supported BusAdapter has been inserted.
See also
Diagnostics alarms (Page 39)
Reading out service data (Page 23)
Interface Module IM 155-6 PN R1 (6ES7155-6AU00-0HM0)
Equipment Manual, 11/2022, A5E51160307-AA
Interrupts, error messages, diagnostics and system alarms
Error display
Error location Cause of error
(ERROR/ MAINT)
65
• No server module
• Interruptions at the backplane bus
• Short circuit of communication on
the backplane bus
5.1 Status and error displays
Remedy
Check the configuration
of the ET 200SP.
35