Doubt with encoders and UMI7774

Hi all,
I have NI, PCI7344 motion controller with UMI 7774. I am trying to read the counts of an encoder. The encoder gives 3 signals, i.e. A,B and Index. The encoder does'nt give A bar , B bar and Index bar signal. Can I still read the encoder pulses in labview with the above hardware? Is there a work around? Earlier I had UMI 7764 with PCI-7344 in my previous project. I had used this kind of encoder successfully with UMI7764. Do I need to change my encoder and get the one which gives the inverted pulses too, to use it with UMI7774.
Regards,
Giridhar Rajan
Automation Engineer, Design
Cruiser Controls
Mumbai, India

Hi,
Hey that OK you have used 7404.But I would suggest using AM26C31 which is quadrature differential line driver.
In this particular you will give the Input and in Output you will be getting Input as well as the inverted input.i.e
If you give A as an Input , In Output you will be getting A as well as A bar.
Regards
Manish karnik
Application Engineer
Mumbai, India

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