Reset position for linear movement

[mayihelpu]

Hi All,

I am using PCI 7344 and UMI7774.I am using three of its Axis.The first two axis are just used as a DRO ( DIgital Read Out) and the third axis is used to control servomotor.

Now at a instant of time, I require to Reset all the axis position to zero.Now the third axis can be reseted by using the Reset Position Vi. But since the first two axis are manual, I have used scales which are used for linear movement measurement( The scales are same as encoders, but can be used for linear measurement.It also has A, B & Z). How can I reset the position for this 2 axis.

Regards

Manish Karnik

[mayihelpu]

Hey I missed some point.

Hi All,

I am using PCI 7344 and UMI7774.I am using three of its Axis.The first two axis are just used as a DRO ( DIgital Read Out) and the third axis is used to control servomotor.

Now at a instant of time, I require to Reset all the axis position to zero.Now the third axis can be reseted by using the Reset Position Vi. But since the first two axis are manual, I have used scales which are used for linear movement measurement( The scales are same as encoders, but can be used for linear measurement.It also has A, B & Z). How can I reset the position for this 2 axis.

Now after reseting the position the axis should be able to read the counts from zero for all the axis. ( For axis 3 it is possible)

Regards

Manish Karnik

[Torba]

Hello mayihelpu,

Thank you for contacting National Instruments.  It sounds like you are attempting to read in digital pulses into axes 1 and 2.  Try configuring these two axes as if they were encoders.  In other words, configure two closed loop stepper motors for these axes, and use the encoder controls for these axes as your digital inputs.  It should not matter that a motor isn't attached.  The pulses will still be counted with the software.  You should then be able to manipulate these axes just like you would with axis 3.

Regards,

Mike T
National Instruments