I have been asked to add a tacho with a quadrature output, with 4x upscaling/upsampling, to substantially increase the resolution of our tacho signal(s). I haven't done much with our tacho signals, beyond the typical zebra tape or once/rev laser tachs.
Can anyone post info on reading/decoding a A/B quadrature signal with counting leading edges of both to upsample the signal 4X?
Solved! Go to Solution.
I think you need a RV4 card for this tacho measurement.
Here I attach a picture with the pin layout:
Is it an incremental encoder signal you're measuring?
Here's a FAQ regarding to Incremental encoder measurement in Test.Lab: https://solutions.industrysoftware.automation.siemens.com/view.php?sort=desc&p=1&q=incremental+encod...
I'll send you the product information sheet for the RV4 card in an email.