Siemens SIMATIC Distributed I/O System DP/ASi Link Dokumentacja Strona 119

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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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