We just built a prcessing facility. We are using a Siemens S7-226, TP070 touch screen and EM241 modem.
We are using the PLC to monitor augers, fill hoppers etc...
I am in the final stages of programming the PLC but am having trouble with timers for the proxes on the flywheels of the augers.
The flywheels are turning at about 450RPM but I can't get the software to acknowledge that they are turning. The lights on the PLC flash on and off whenever the flywheels are rotating. I have setup a network on another rotating shaft which runs about 12RPM and it works fine. Is it possible that i'm having aliasing problems?
Any help is much appreciated.
-norm
We are using the PLC to monitor augers, fill hoppers etc...
I am in the final stages of programming the PLC but am having trouble with timers for the proxes on the flywheels of the augers.
The flywheels are turning at about 450RPM but I can't get the software to acknowledge that they are turning. The lights on the PLC flash on and off whenever the flywheels are rotating. I have setup a network on another rotating shaft which runs about 12RPM and it works fine. Is it possible that i'm having aliasing problems?
Any help is much appreciated.
-norm