Siemens Simatic S7-1500 - Page 45

A5E33284667-AA Page 44
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200 S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
✔ ✔ ✔ ✔
Delay execution of higher priority interrupts and
asynchronous error events
DIS_AIRT
✔ ✔ ✔ ✔
Enable execution of higher priority interrupts and
Enable asynchronous events
EN_AIRT
✔
Trigger multicomputing interrupt
MP_ALM
Alarms
✔
Generate program alarm with associated values
Program_Alarm
✔
Output alarm status
Get_AlarmState
✔ ✔
Generate user diagnostic alarms that are entered in
the diagnostics buffer
Gen_UsrMsg
✔
Read pending alarms
Get_Alarm
✔
Acknowledging alarms
Ack_Alarms
✔ ✔
Write a user diagnostics event to the diagnostics
buffer
WR_USMSG
✔
✔
Generate alarm messages
ALARM_S
✔
✔
Generate alarm message with acknowledgment
ALARM_SQ
✔
✔
Create permanently acknowledged PLC alarms
ALARM_D
✔
✔
Create acknowledgeable PLC alarms
ALARM_DQ
✔
✔
Determine acknowledgment status of the last
ALARM_SC