Siemens SIMATIC ET 200iSP Operating Instructions Manual page 143

Status and Error LEDs on the IM 152
● LED PS1: On --> power supply is switched on at Power Supply 1
● LED PS2: On --> for Power Supply PS when redundancy is configured: power supply is
switched on at Power Supply 2
Table 6-3 Status and Error LEDs on the IM 152
LEDs
SF BF ACT
off off off
on on on
off off *
on off *
* on *
* flashes *
on off *
on on *
off flash‐ *
es at
0.5 Hz
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Meaning
ON
off No voltage is applied.
Power Supply PS or IM 152 defective.
on Hardware test after power on.
on Data exchange between the ET 200iSP
and the DP master.
Preset and actual configuration are consis‐
tent, no diagnostics.
on Data exchange between the ET 200iSP
and the DP master, at least one diagnostic
event and/or one inconsistency in the pre‐
set and actual configuration is present.
on No connection with the DP master (trans‐
mission rate detection).
Cause:
Bus communication over PROFIBUS DP
has been interrupted.
on IM 152 is not configured properly - no data
exchange is occurring between the DP
master and the ET 200iSP.
Causes:
Bad PROFIBUS DP address.
Inconsistent preset and actual configura‐
tion.
Problems on PROFIBUS DP.
on Illegal PROFIBUS DP address.
Causes:
PROFIBUS DP address 126 or 127 set.
PROFIBUS DP address changed, without
deleting retentive data.
off Deleting the retentive data (turning on with
PROFIBUS DP address "0").
off Retentive data is deleted, turn off.
Commissioning and Diagnostics
6.6 Status and error LEDs on the ET 200iSP
Remedy
Turn on the power at the Power Supply PS.
Replace the Power Supply PS or the IM
152.
---
---
Check the process wiring.
Check the electronic modules.
Check the preset and actual configuration
(wrong or missing module).
Check the bus (is the bus connector inser‐
ted correctly).
Check the terminating resistor and the RS
485-IS coupler.
Check the project engineering (PROFIBUS
DP address).
Check the preset and actual configuration
(wrong or missing module).
Check the bus configuration (bus connec‐
tor, terminating resistor, RS 485-IS cou‐
pler).
Set a valid PROFIBUS DP address on the
IM 152.
If you have changed the PROFIBUS DP
address, delete the retentive data.
---
Set the required PROFIBUS DP address
before turning on again.
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