Indicators And Controls - Siemens S5-135U/155U System Manual

Interface Modules
7.1.1

Indicators and Controls

IM 300-3:
I/O Module Failure LED
This LED lights up if the supply of power to the connected EUs has failed
and/or the connecting cable is open-circuit.
IM 300-5 (-5CA11):
I/O Module Failure LEDs
LEDs LD1 and/or LD2 light up if a module inserted in the EU no longer
responds to an access by the CPU.
The IM 312 has no indicators or controls.
IM300-3
Figure 7-1
7-4
34
34 1
18
18
33 17
33 17
50 50
I/O Module
Failure
Fault
Fault
Fault
34
18
33
50
IM300-5
Front Plates of the IM 300 and IM 312
1
34
18
33 17
50
I/O Module
Failure
1
17
IM312
C79000-G8576-C199-06
1
System Manual