Siemens SIRIUS 3RK3 - Replacing an AS-I Slave in Different Subnetworks

7.10.2 Replacing an AS-i slave in di󹪜erent subnetworks
Behavior of the MSS 3RK3
WARNING
Loss of the safety function through changes to the system.
Can Cause Death, Serious Injury, or Property Damage.
To ensure the safety of the system, any changes to it or any replacement of defective
components must be followed by a thorough and successfully completed function test of the
system.
A complete function test consists of the following tests:
• Con󹪝guration test (test of the con󹪝guration)
• System test (wiring test of the connected sensors and actuators)
To ensure that the code sequences are unique, the code sequences of all safety-related AS-i
slaves on every device must be saved with monitor functionality. If a safety-related AS-i slave of
another subnet is replaced, the code sequence will change. This is detected by each AS‑i monitor
on the AS‑i bus and it is treated just like an AS-i slave of the same subnet. When it lights up yellow,
the TEACH-LED on the MSS 3RK3 indicates that a new code sequence has been detected that can
be applied.
Applying the new code sequence
The new code sequence can be applied and saved by pressing the reset button for 3 s or by
pressing the "Adopt code tables" button in the "Target system" > "ASIsafe code tables" dialog box
in Safety ES. The code sequence of MSS 3RK3 is applied and saved in this way.
Table 7-3 LED display on replacement of an AS-i slave in di󹪜erent subnets in safety mode
LED Display Explanation
DEVICE green Device in safety mode
AS-i O󹪜 Another code sequence in another subnet is not evalu‐
ated as an error
TEACH yellow Code sequences can be applied
SF O󹪜 No group error
You will 󹪝nd further information in Chapter "Teaching the code sequences (Page 208)".
Diagnostics / service
7.10 Replacement of AS-i components
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 353