Hi
I have a proximity sensor thats output is connected to a PLC in a piece of equipment. Its function is to shut the machine down when metal is detected. What happens is when metal is detected by the sensor 24Vdc is supplied to a pin on the PCL, the PLC then instantly shuts the machine down.
What I need to do is intercept the 24Vdc ,wait a few seconds and then send it to the PCL. If the 24Vdc is lost during the wait time then start the wait time over.
Anyone have a circuit for this?
Thanks
I have a proximity sensor thats output is connected to a PLC in a piece of equipment. Its function is to shut the machine down when metal is detected. What happens is when metal is detected by the sensor 24Vdc is supplied to a pin on the PCL, the PLC then instantly shuts the machine down.
What I need to do is intercept the 24Vdc ,wait a few seconds and then send it to the PCL. If the 24Vdc is lost during the wait time then start the wait time over.
Anyone have a circuit for this?
Thanks