Timer Problem GP-Pro/Pb3

[icekalt]

Hi all,

I am quite new with proface and I have difficulty using the timer. Example, preset time is 5 seconds. After the Enable_Drive is ON the Start_Drive will be ON after 5 seconds. According to the timing diagram below, if Enable_Drive is OFF in less than 5 seconds, the timer will reset to 0(elapsed time = 0). Can someone give me hint, how to pause the timer if the Enable_Drive is OFF less than 5 seconds. The timer should hold the value of elapsed time and then resume after Enable_Drive is ON again.

Thx in advanced

 

[JeffKiper]

It has been a while but I think they have a retentive timer.

 

[icekalt]

no retentive timer..

 

[JeffKiper]

Try the TONA Or TOFA

 

[icekalt]

JeffKiper,

This proface only has three timers. They are TON, TOF and TPULSE....

 

[JeffKiper]

Us a HMI instruction to move the value into a holding register. Then you can keep that value as long as you want. You may run into a little scan delay because of the move. I don't see it being any worse than 1 scan so that shouldn't be very long.