Delta DVP-ES2 - Manual (Page 565)

3 . I n s t r u c t i o n S e t
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M1540 Indicating pause status of Y2
2. Special register explanations:
D1030 Low word of the present value of Y0 pulse output
D1031 High word of the present value of Y0 pulse output
D1336 Low word of the present value of Y2 pulse output
D1337 High word of the present value of Y2 pulse output
D1220 Pulse output mode setting of CH0 (Y0, Y1). Please refer to PLSY instruction.
D1221 Pulse output mode setting of CH1 (Y2, Y3). Please refer to PLSY instruction