NCT 90 - Page 34

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L8000 THIS MINI PLC PROGRAM IS LOADED FROM PROM! (V.1.50) (c) NCT
1st level module called in each 20ms
:001
(V003ANI003) ;falling edge of emergency stop line
D404 ;mavhine on output disable
PBE"ESTOP?" ;calling blinking error message
C003 ;calling emergency stop module
Z
(NI402ONI411) ;not reference point return mode or
;not start state: limit switches are
;considered as they are
NI006
U417 ;sets X on + limit switch flag
E
D417
Z
NI004
U416 ;sets X on - limit switch flag
E
D416
Z
NI001
U415 ;sets y on + limit switch flag
E
D415
Z
NI000
U414 ;sets y on - limit switch flag
E
D414
Z
NI007
U413 ;sets Z on + limit switch flag
E
D413
Z
NI005
U412 ;sets Z on - limit switch flag
E
D412
Z
Z ;<-- end of condition: not reference point
;return mode or not start state
(I006AI004) ;limit switches of X axis are considered as
;reference point switches
U430 ;X is not on referenece switch
E
D430 ;X is on referenece switch
Z
(I000AI001) ;limit switches of y axis are considered as
;reference point switches
U431 ;y is not on referenece switch
E