Siemens SIMATIC S7 - Page 334

Program instructions
7.10 Interrupt
S7-200 SMART
334 System Manual, V2.3, 07/2017, A5E03822230-AF
Example 3: Clear interrupt event instruction
LAD
STL
SBR 1
Network 1
HSC instruction wizard:
Set control bits, write preset.
PV = 6
Attach interrupt
HSC1_STEP1:
CV = PV for HC1
Configure HSC 1.
Network 1
LD SM0.0
MOVB 16#A0, SMB47
MOVD +6, SMD52
ATCH HSC1_STEP1, 13
SBR 1
Network 2
Clear unwanted interrupts
caused by machine vibration.
Network 2
LD SM0.0
CEVNT 13