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Delta Electronics High-Speed PCI 12-Axis Motion Control Card PCI-DMC-A01 User Manual

Page 246

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Chapter 16 Motion Counter Value API | PCI-DMC-A01 / PCI-DMC-B01

16-4

Revised March, 2012

16.5 _DMC_01_get_target_pos

FORMAT

I16 PASCAL _DMC_01_get_target_pos (U16 CardNo, U16 NodeID, U16 SlotID, I32* pos)


Purpose

Retrieves the current value of the target position.


Parameters

Name

Data Type

Unit

Description

CardNo U16

Number

Unit CardNo is between 0~15

NodeID

U16

Number Unit Node ID

SlotID

U16

Number Unit Slot ID

pos

I32*

Number of

pulses

Position counter value for current position (see
the Notes below for explanation)


Example

U16 CardNo=0;
U16 NodeID =1;
U16 SlotID = 0;
I32 pos=0;

I16 status= _DMC_01_get_target_pos (CardNo, NodeID, &pos);

NOTE

※ After issuing a motion command, if you are relying on _DMC_01_get_target_pos to

return the pos so you can decide the next step, put in a delay of 10~100ms (this value
can be adjusted based on CPU performance and programming approach) before
executing _DMC_01_get_target_pos to ensure that the data is correct.

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