Commissioning and Diagnostics
6-11
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
IM 153-2
Table 6-6
Status and error messages of the IM 153-2
SF
BF
ON
ACT
SF (group fault):
red
BF (fault at PROFIBUS):
red
ACT (active module in redundancy mode):
yellow
ON (supply voltage available):
green
IM 153-2AA02/-2AB01
SF
BF
IM 153-2Bx00
ON
ACT
LEDs
Meaning
What to Do
SF
BF
ACT ON
Off
Off
Off
Off
There is no voltage applied to the
IM 153-2, or the IM 153-2 has a
hardware defect.
Switch on the power supply module
or change the IM 153-2.
*
*
*
On
There is voltage applied to the IM
153-2. IM 153-2 is in operation.
–
On
Off
Off
Off
IM 153-2 is in hardware reset
following power on
–
On
On
On
On
Hardware test following power on
–
On
On
Off
Off
Operating system update is running
–
Off
Flashes
0.5Hz
Off
Off
Operating system update has been
completed successfully (remove
MMC and switch on IM 153-2)
–
On
Flashes
0.5Hz
Off
Off
External fault; e.g. unsuitable
operating system or MMC has been
removed
Use a suitable operating system for
the update.
Do not remove the MMC during the
update.
On
Flashes
2Hz
Off
Off
Internal fault; e.g. during writing of the
update files
Repeat the update procedure.
If the LEDs indicate the fault again,
the internal memory is faulty.
*
Flashes
Off
On
The IM 153-2 is incorrectly
parameterized – there is no data
transfer between the DP master and
the IM 153-2.
Causes:
The PROFIBUS address is
incorrect
Faults on the bus.
Check the IM 153-2.
Check the configuration and
parameter assignment.
Check the PROFIBUS address on
the IM 153-2 and in the STEP 7
project.
Check the cable length with
respect to the baud rate.
Check the terminating resistor
settings.
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