Siemens SIMATIC S7-1200 Reference Manual page 46

Basic instructions
ALARM_SQ incoming alarm
✔
Report up to eight signal changes
Create PLC alarms without associated values for
✔
eight signals
Create PLC alarms with associated values for eight
✔
signals
✔
Report a signal change
✔
Create PLC alarms with acknowledgment display
✔
Send archive data
Other instructions
✔ ✔
Read out dynamically assigned system resources
✔ ✔
Delete dynamically assigned system resources
✔
Enable PLC alarms
✔
Disable PLC alarms
Diagnostics
✔ ✔ ✔
Read current OB start information
✔
Read runtime statistics
✔
Determine OB program runtime
✔
Determine current connection status
A5E33284667-AF
Extended instructions
Description
Technology
STL
LAD/FBD
(not S7-1200)
NOTIFY_8P
ALARM_8
ALARM_8P
NOTIFY
ALARM
AR_SEND
READ_SI
DEL_SI
EN_MSG
DIS_MSG
RD_SINFO
RT_INFO
OB_RT
C_DIAG
Communication
SCL
Page 45