HEIDENHAIN TNC 335 Technical Manual - Manual (Page 114)

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TNC 360 1 Machine Axes 4-17
Set Reset
M2624 Limit switch X+ NC NC
M2625 Limit switch X–
M2626 Limit switch Y+
M2627 Limit switch Y–
M2628 Limit switch Z+
M2629 Limit switch Z–
M2630 Limit switch 4+
M2631 Limit switch 4–
Example:
PLC program example of changing the traverse ranges. The PLC input I10 is used as a condition for
change.
I10 = 0 Traverse range 1
I10 = 1 Traverse range 2
.
127 LN I10 ;Traverse range 1
128 AN M555 ;Already done?
129 R M2816 ;Select traverse range 1
130 R M2817 ;Select traverse range 1
131 S M2824 ;Activate change
132 S M555 ;Edge recognition traverse range1
133 R M556 ;Reset edge recognition traverse range2
134 L I10 ;Traverse range2
135 AN M556 ;already done?
136 S M2816 ;Select traverse range2
137 R M2817 ;Select traverse range2
138 S M2824 ;Activate change
139 S M556 ;Edge recognition traverse range2
140 R M555 ;Reset edge recognition traverse range1
.
M555
M556
I10
M2816
M2817
M2824