DKahmer
Member
I'm trying to figure out if I'm doing this correctly or not and was hoping you guys could help a noob out!
I have a motor spinning a large gear, turning a cam. The cam is set so that I have 4 cam "pulses" with every one gear rotation. I have a small magnet on the gear, and a proximity sensor picking it up as an input to my PLC. I need to be able to have 20 cam rotations (5 gear rotations) per second. They advertise at the scan time being 140 us. So should be more than capable of that with just a standard input and counter correct?
I was counting along as I watched it spin but the counter I was monitor was not registering at the same pace. Do you think my the signal just wasn't strong enough from the prox sensor to register the input?
I have a motor spinning a large gear, turning a cam. The cam is set so that I have 4 cam "pulses" with every one gear rotation. I have a small magnet on the gear, and a proximity sensor picking it up as an input to my PLC. I need to be able to have 20 cam rotations (5 gear rotations) per second. They advertise at the scan time being 140 us. So should be more than capable of that with just a standard input and counter correct?
I was counting along as I watched it spin but the counter I was monitor was not registering at the same pace. Do you think my the signal just wasn't strong enough from the prox sensor to register the input?