Device Fault - Siemens SIMATIC ET 200SP Manual

3.2.2.2

Device fault

Description
Examples of conditions that trigger a device fault are:
● Device fault (e.g. sporadic synchronization error, see also DS92)
● Configuration error (e.g. problem with contact to backplane bus, coding plug missing, see
also DS92)
You can read the following pattern on the LEDs:
Table 3- 2
LED
"Status"
"Error"
"CFG"
"PSF"
In the event of a device fault of this type, communication with the F-CM AS-i Safety ST
module is only possible. e.g., for reading out additional diagnostic information via data
records. The substitute value "0" is processed for inputs and outputs, and all channels are
passivated.
● Make sure that the station is properly grounded.
● Check whether the coding element is present or replace it if necessary.
● Plug the module into the BaseUnit in an untwisted position.
Switch off the module. If the error persists after the module is switched on and no external
error cause can be found, the module must be replaced.
Fail-safe Module F‑CM AS‑i Safety ST (3RK7136‑6SC00‑0BC1)
Manual, 03/2017, A5E03957059020A/RS-AB/002
LED display for device faults
Display
"Off"
Red "flashes"
"Off"
"Off"
3.2 Operating modes of the F-CM AS-i Safety ST
Product overview
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