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How Can I Programmatically Read In Axis Acceleration and Deceleration Parameters?

Primary Software: Driver Software>>NI-Motion/FlexMotion
Primary Software Version: 7.6
Primary Software Fixed Version: N/A
Secondary Software: N/A

Problem:
How can I programmatically read in the current settings for acceleration, deceleration, acceleration jerk, and deceleration jerk on an axis?

Solution:
There are not currently any NI-Motion VIs which are capable of reading these parameters. You will need to keep track of them in your own way, such as through a shift register or local variable which you update each time you load new settings into the motion controller. See the Related Links section below for a recommended order for setting motion controller parameters after initializing an axis.

Note for NI-73xx controllers: using Load Velocity and Load Acceleration/Deceleration VIs gives better performance than using the Load Move Constraint VI to perform the same functions. In addition, 73xx controllers do not support the Acceleration Jerk and Deceleration Jerk attributes.



Related Links:
Developer Zone Tutorial: Initializing Motion Controllers

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Report Date: 02/29/2008
Last Updated: 04/08/2008
Document ID: 4ISAMA3H

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