Rockwell Automation 57C419 5V-24V DC Input Module - Manual (Page 22)

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3003 ! be as meaningful as possible. The watchdog timeout has been
3004 ! disabled because the interrupt is not periodic.
3005 !
3006 !
3007 !
3010 EVENT A NAME=HW EVENT, INTERRUPT STATUS=ISCR%,&
3011 TIMEOUT=DISABLED
4000 !
4001 ! The following statements reset the latch status bits
4002 !
4010 LATCH ACK B17@=FALSE
4011 LATCH ACK B18@=FALSE
4012 LATCH ACK B20@=FALSE
5000 !
5001 ! The following statements enable interrupts
5002 !
5010 INTRP ENABLE B17@=TRUE
5011 INTRP ENABLE B18@=TRUE
5012 INTRP ENABLE B20@=TRUE
5500 !
5600 ! complete the remainder of task initialization here
5700 !
6000 !
6001 ! The next statement synchronizes the task with the external
6002 ! event via the interrupt. Task execution will be suspended
6003 ! until the interrupt occurs. When the interrupt occurs, if this
6004 ! task is the highest priority task waiting to execute, it will
6005 ! become active. If it is not the highest priority task, it will
6006 ! remain suspended until all higher priority tasks have executed,
6007 ! at which point it will become active.
6008 !
6010 WAIT ONHW EVENT
7000 !
7001 ! The next statements determine which bit generated the interrupt
7002 ! by examining the latch status bit. If a latch is
7003 ! found, it is reset. The interrupt service routine is
7004 ! then executed.
7005 !
7010 IF NOT LATCH STATUS B17@ THENGO TO 8010
7020 LATCH_RESET B17@ = FALSE
7030 B17 CNT% = B17 CNT% + 1 \!Interrupt service routine for B17
7040 !
8000 ! Test B18 interrupt
8005 !
8010 IF NOT LATCH STATUS B18@ THENGO TO 9010
8015 LATCH_RESET B18@ = FALSE
8020 B18 CNT% = B18 CNT% + ! \!Interrupt service routine for B18
8050 !
9000 ! Test B20 interrupt
9005 !
9010 IF NOT LATCH STATUS B20@ THENGO TO 10010
9015 LATCH_RESET B20@ = FALSE
9020 B20 CNT% = B20 CNT% + \!Interrupt service routine for B20
10020 !
10010 GO TO 6010
15000 !
18000 !
20000 END