Encoder reset and events on encoder position

[papaya 0]

Hello,

 I have a 1734-VHSC24 fast entry card.

 An ifm rup 500 encoder.

 I want to reset my encoder counter on a rising edge of a sensor.

 The problem is that on a rising edge it doesn't reset my counter, I feel like I need to maintain my pulse for at least 50ms.

 

 I also want to trigger events on an encoder position, what is the best way?

 I am using a comparator, but I don't think this is the best way to go.

[BobLfoot 301]

Your Counter Reset Tag is only true for one scan of your PLC Program.  WIth distributed I/O like this it is quite likely that the scan your reset bit is true for is not the scan you pull data to send it to the module on.

I would suggest let the leading edge of sensor turn on a latch bit and grab the value of the counter at that time.  When you see the counter value come back less than the value you grabbed unlatch the reset bit.

You do have discrete outputs on the VHSC which can fire at specific counter values.  These might be a better way to go if you don't have too many settings triggering things.

[papaya 0]

Thanks for your help