Rockwell-automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax Manual de usuario descargar pdf (Pagina 39)

4Ć17

Positioning Mode Example (Continued)

4005 !ăalways be the lowest priority task.

4006 !

4010 FOR I%=0TO3\READ LIMIT_SWITCH%(I%) \ NEXT I%

4015 RESET@ = TRUE \ RESET@ = FALSE \!ăZero counter

4020 I% = 0 \!ăInitialize limit switch index

4025 LOW_COMP% = LIMIT_SWITCH%(I%) \!Set comparator to 1st value

4030 CNTR_EQ_RST@ = FALSE \!ăInitialize 'Comp=' status

4035 EQU_INT@ = ON \! Enable comp = interrupt

4040 CLR_MOD1@ = OFF \! Reset on equal

4045 CLR_MOD2@= ON \! Reset on equal

4050 CCLK_EN@ = ON \! Enable constant clock

5988 !

5989 !ăPlace additional initialization software here.

5990 !

5991 !

5992 !ăThe next statement synchronizes the task to the external

5993 !ăevent via the interrupt. Task execution will be suspended

5994 !ăuntil the interrupt occurs. When the interrupt occurs, if

5995 !ăthis task is the highest priority task waiting to

5996 !ăexecute, it will become active. If it is not the highest

5997 !ăpriority task, it will remain suspended until all higher

5998 !ăpriority tasks have executed at which point it will then

5999 !ăbecome active.

6000 !

6010 WAIT ON COUNTER_EVENT

6997 !

6998 !ăThe following statements perform the interrupt service

6999 !ăroutine.

7000 !

7010 INDEX% = I% + 1 \!ăSave this index value

7015 I% = I%+1\IFI%>3THEN I% = 0 \!ăStep to next point

7020 LOW_COMP% = LIMIT_SWITCH%( I% ) \!ăSet up next value

7025 CNTR_EQ_RST@ = FALSE \!ăReset interrupt

7030 ON INDEX% GOSUB 8000, 8200, 8400, 8600 \ !Execute routine

7035 GOTO 6010

7997 !

7998 !ăInterrupt service routine for limit switch value (0).

7999 !

8000 INT_SERVICE0% = INT_SERVICE0% + 1

8190 RETURN

8197 !

8198 !ăInterrupt service routine for limit switch value (1).

8199 !

8200 INT_SERVICE1% = INT_SERVICE1% + 1

8390 RETURN

8397 !

8398 !ăInterrupt service routine for limit switch value (2).

8399 !

8400 INT_SERVICE2% = INT_SERVICE2% + 1

8590 RETURN

8597 !

8598 !ăInterrupt service routine for limit switch value (3).

8599 !

8600 INT_SERVICE3% = INT_SERVICE3% + 1

8790 RETURN

9000 DATA 1000 \!ăLimit switch position 0

9005 DATA 500 \!ăLimit switch position 1

9010 DATA 2500 \!ăLimit switch position 2

9020 DATA 3000 \!ăLimit switch position 3

32767 END

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 69 70

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