Siemens SIRIUS 3RK3 Equipment Manual page 304

Diagnostics / service
7.6 Diagnosis using AS-Interface (CTT2 protocol)
3. Example of transmission with error because of incorrect CTT2 code
The third example below demonstrates the writing of a data set using data set DS3 "Command
interface: element accesses" when an unknown CTT2 code (1E
①
PLC
②
AS-i master
③
MSS 3RK3 with AS-i interface
304
) has been rejected:
H
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006