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Third party products
Hi,
I need some advice on how to communicate and control a stepper or servo motor through VB of VFP.
Are there any Activex controls which I may purchase from a third party customer that will allow me to acheive this?
Do I need any interface cards, or can I send signals directly through a parallel and/or serial port to to be used as a clock signal for a counter IC (Integrated Circuit)? The second method is the preferred method.
I would also like to control the frequency of this pulse signal.
Again, I need a simple solution, which does not require the need to buy expensive hardware and software. Presently I have the stepper motor, and a board for the phase sequencing, which does not plug into a computer slot or any controller. I need to simply send pulses directly to the board using only my serial and/or parallel port, which will be connected to this board via cable, whih in turn connects to the motor.
If this doable, do I need to boost the signal coming from the computer, or is the signal strong enough as is.
I am consulting a manufacturing company, and this is the project I have accepted. Personally, I do not have much experience with this. so any advice is strongly appreciated.
Thank you very much.
John Vlahos
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