LEDs
Meaning
Remedy
SF
BF
ACT
ON
*
off
on
on
The IM 152 is exchanging data with the DP
master and the electronic modules of the
ET 200iSP. If redundancy is configured,
this IM 152 is the active interface module
of the ET 200iSP.
---
*
off
off
on
The IM 152 is receiving power. If redun‐
dancy is configured, this IM 152 is the pas‐
sive interface module, i.e. no data is ex‐
changed with the electronic modules.
---
flashes
at 0.5
Hz
**
off
off
on
If redundancy is configured, this IM 152 is
the passive interface module and is not
ready for a bumpless switchover (for exam‐
ple, the associated CPU is in STOP mode).
Bring the H-system to the redundant state.
Flash‐
ing
2 Hz
Flash‐
ing
2 Hz
Flash‐
ing
2 Hz
Flash‐
ing
2 Hz
The IM 152 is in the safe state.
Remove and insert the IM 152. If the flash‐
ing code continues to occur, you must send
in the IM 152.
* Not applicable
** After the transition to redundant operation, the SF LED continues to flash for another 20 s.
Digital electronic modules
6)
SF
Group error (red)
①
Status for input/output status (green)
②
Status for the input status (green)
Commissioning and Diagnostics
6.6 Status and error LEDs on the ET 200iSP
ET 200iSP
144
Operating Instructions, 11/2017, A5E00247483-07