Siemens SIMATIC S7 - SMW100-SMW114 System Alarms

Special memory (SM) and system symbol names
D.18 SMW100-SMW114 System alarms
S7-200 SMART
822 System Manual, V2.3, 07/2017, A5E03822230-AF
D.18
SMW100-SMW114 System alarms
Special memory words SMW100-SMW114 provide alarm and diagnostic error codes for
CPU, SB (signal board), and EM (expansion modules).