TOM_80

I am a fairly new PLC programmer. I am trying to improve on a daily basis. I was hoping someone could break down the SETR instruction into easier terms than then the instruction help menu inside CX-Programmer has it.

Thank you very much Michael for that, that just might work.

How do you ensure a time value in a memory register coming from an external device is constantly changing in an omron cj2 plc and trigger an alarm when it stops. At my company we scan in a work order with a barcode scanner tied to a different network than the one the plc is communicating to. We use a specific register in memory to determine if these two networks are communicating. We use a date time value in seconds going to that specific register, as long as the time continues to run we know we have a communication link. If that time ever stops in that register we know the communication link is severed. I need to know if there is logic that can be written in the plc to notify an operator when there is no communication link.

I am trying to connect a cj2m to an USB 4750 interface board to work with factory io. I am currently using the first scene where a tote will travel via conveyor until it reaches a NC sensor stopping the conveyor. I have the logic written in CX-Programmer as a NO contact connected to the output(conveyor). The input(NC Laser sensor) should stay on and show up on the input remote terminal allowing the conveyor to run until it reaches the sensor stopping the conveyor, but it does not. The input to the PLC stays on regardless of what the logic says in CX-Programmer, as a result the tote runs off the conveyor.  I have currently connected the PLC inputs to source type configuration and sink type for the outputs. The outputs work correctly however the inputs will not. The grounds and commons I believe are connected correctly. Can anyone help me out.      . 

I am trying to connect a cj2m to an USB 4750 interface board to work with factory io. I am currently using the first scene where a tote will travel via conveyor until it reaches a NC sensor stopping the conveyor. The input should stay on and show up on the input remote terminal, but it does not.   I have currently connected the PLC inputs to source type configuration and sink time for the outputs. The outputs work correctly however the inputs will not. The grounds and commons I believe are connected correctly. Can anyone help me out.     . .