Delta Tau Turbo PMAC Clipper, Hardware Reference Manual

Page: 34 / 84

Turbo PMAC Clipper Hardware Reference Manual
Connections and Software Setup 34
Note
While normally closed-to-ground switches are required for the
overtravel limits inputs, the home switches could be either
normally close or normally open types. The polarity is
determined by the home sequence setup, through the I-variables
I7mn2.
Limits and Flags [Axis 1- 4] Suggested M-Variables
Either the user flags or other not assigned axes flag on the base board can be used as general-purpose I/O
for up to 20 inputs and 4 outputs at 5-24Vdc levels. The indicated suggested M-variables definitions
allow accessing each particular line as shown below:
M114->X:$078005,14 ; AENA1 output status
M115->X:$078000,19 ; User 1 flag input status
M120->X:$078000,16 ; Home flag 1 input status
M121->X:$078000,17 ; Positive Limit 1 flag input status
M122->X:$078000,18 ; Negative Limit 1 flag input status
M214->X:$07800D,14
; AENA2 output status
M215->X:$078008,19 ; User 2 flag input status
M220->X:$078008,16 ; Home flag 2 input status
M221->X:$078008,17 ; Positive Limit 2 flag input status
M222->X:$078008,18 ; Negative Limit 2 flag input status
M314->X:$078015,14
; AENA3 output status
M315->X:$078010,19 ; User 3 flag input status
M320->X:$078010,16 ; Home flag 3 input status
M321->X:$078010,17 ; Positive Limit 3 flag input status
M322->X:$078010,18 ; Negative Limit 3 flag input status
M414->X:$07801D,14
; AENA4 output status
M415->X:$078018,19 ; User 4 flag input status
M420->X:$078018,16 ; Home flag 4 input status
M421->X:$078018,17 ; Positive Limit 4 flag input status
M422->X:$078018,18 ; Negative Limit 4 flag input status
Note
When using these lines as regular I/O points the appropriate setting
of the Ixx24 variable must be used to enable or disable the safety
flags feature.