Siemens ET 200pro - Alarm, error and system messages; PROFIBUS DP

ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
189
Alarm, error and system messages
9
9.1
PROFIBUS DP
9.1.1
LED display on the IM 154-1 DP and IM 154-2 DP High Feature interface
modules
LED display
The figure below shows the position and layout of the LED display of the interface modules
IM 154-1 DP and IM 154-2 DP High Feature.
①
GE: Group error (red LED)
②
BF: Bus fault (red LED)
③
ON: Electronic/encoder supply 1L+ (green LED)
④
DC24V: Load voltage supply 2L+ (green LED)