AC500 PM554 Onboard fast counter for Calculate RPM
Hi I used ONB_IO_CNT and i have correct Counter value(ACT1). I will like to find a counter block or a way to count the time past after an event occur. In fact, I want to have the number of pulses at a given time for calculate RPM of motor. i am using automation builder version2. kindly guide me how to get rpm by using ACT1 value in ONB_IO_CNT block. Or else is there any way to get rpm by using proximity sensor?
Hi, I don't know for ready to use block but you can create own logic for that. I have used Scan time TON, and manipulate EN1 and SET1 parameters of CNT_IO. So you will have the number of pulses for a fixed period of the TON. Then multiply ACT1 by a scale factor
Hi...what's the recurrence of the beat train that the card is checking? On the off chance that it's high, at that point estimating the time pass between two heartbeats may not be the best methodology. One way I've seen this done is by utilizing a clock heartbeat and contrasting the current check and the last tally each clock beat, at that point scaling to the ideal speed units.