Replacement Of Defective Devices; Replacing A Safe As-I Input Slave; Replacing The Safe As-I Output Module (Evaluation Unit) - Siemens SIMATIC ET 200SP Manual

8.4

Replacement of defective devices

8.4.1

Replacing a safe AS-i input slave

Replace a failed safe AS-i input slave with a new device of the same type and assign the
correct AS-i address to the slave. This address assignment can be performed automatically
by the AS-i master (see manual of the AS-i master) or manually, e.g., with the AS-i
addressing device (1904-2AB02).
Close the contacts on the inputs of the safe AS-i input slave so that the slave sends the code
sequences.
The F-CM AS-i Safety ST module detects a new code sequence automatically and teaches
it. For reintegration, the taught code sequence must be transferred.
The transfer can be started from the STEP 7 online dialog or by pressing the optional
"TEACH" button (at least 3 s). For more information, see Section Code sequences
(Page 75).
Observe the "CFG" and "TEACH" LEDs, see Section Meaning of the LEDs (Page 85).
To exclude impermissible duplicate code sequences for two safe input slaves, code
sequences from all safe input slaves present on the AS-i bus must be transferred, regardless
of whether the monitoring is activated or deactivated.
8.4.2

Replacing the safe AS-i output module (evaluation unit)

After replacement of a safe AS-i output module (evaluation unit), no setting is necessary on
the F-CM AS-i Safety ST module.
Observe the operating instructions of the AS-i output module, and set the correct F-address
for the AS-i output module and the AS-i address of any integrated standard slave.
An error acknowledgment for the affected output switching group must be performed, if
necessary. See Section 6.3 Address space.
Non-safety related AS-i slaves (standard slaves) are not evaluated by the F-CM AS-i Safety
ST module. Observe the replacement instructions in the operating instructions of the AS-i
master or the slave.
Fail-safe Module F‑CM AS‑i Safety ST (3RK7136‑6SC00‑0BC1)
Manual, 03/2017, A5E03957059020A/RS-AB/002
Alarm, fault, and system events
8.4 Replacement of defective devices
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