Siemens SIRIUS 3RK3 Equipment Manual page 242

Operation
6.6 Integration into PROFINET master systems
Restoration PROFINET
Once the PROFINET connection has been restored, the safety relay will work with the real values
again.
Indication restoration PROFINET
LED
DEVICE
PORT LED
BF
SF
242
PN interface Safety relay
Green Green
Green -
Off ‑
Off Off
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006