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Commissioning and Diagnostics
Status and Error LEDs on the IM 151-2
Table 7-10
Status and Error LEDs on the IM 151-2
LEDs
SF
BF
ON
off
off
off
There is no voltage applied to the IM
151-2 or the IM 151-2 has a hardware
fault
*
*
on
Power is being supplied to the IM 151-
2.
*
flash
on
IM 151-2 is incorrectly configured –
es
there is no data exchange between the
DP master and the IM 151-2.
Cause: PROFIBUS address is
incorrect.
*
on
on
Baud rate detection, illegal PROFIBUS
address all lowest DIL switch
(PROFIBUS address) not set to OFF.
Causes:
•
the watchdog has elapsed.
•
bus communication to the IM 151-2
over PROFIBUS-DP is interrupted.
•
no DP master exists.
on
*
on
Configuration of the ET 200iS defined
in the project does not match the
actual configuration of the ET 200iS.
Problem in an I/O module
Module reports diagnostic information
off
off
on
Data exchange is taking place
between the DP master and the ET
200iS.
Configuration defined in the project
and actual the configuration of the ET
200iS match.
* not relevant
7-18
Meaning
Turn on the DC 24V power supply on the
terminal module TM-PS.
Replace the IM 151-2.
-
•
•
•
Set a valid PROFIBUS address (1 - 125)
on the IM 151-2 or check the bus setup.
•
•
•
Check the configuration of the ET 200iS.
Is a module missing, defective, or is there
an unconfigured module plugged in?
Check the configuration (for example with
COM PROFIBUS or STEP 7).
Check the process wiring.
-
Remedy
Check the IM 151-2.
Check the DP configuration.
Check the PROFIBUS address.
Check whether the bus connector is
correctly inserted.
Check whether the bus cable to the DP
master is interrupted.
Turn the DC 24 V power supply on the
terminal module TM-PS off and on
again.
ET 200iS Distributed I/O Station
A5E00087831-02
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