Hello all at Triangle, I trust everyone has had a good holiday.
I am running a medium sized program on a MD2424 plc, I would like to interface a ultrasonic proximity switch as a modbus slave device.
I am monitoring a fairly fast moving conveyor, and I am wondering what would be the highest rate that I can quiry the slave device without risk of slowing down the program.
I can also use a 4-20mA analog output from the proximity switch if I need to, but I thought I would try to use the Modbus protocol rather than rely on the 8-bit resolution of the analog inputs.
Any help would be appreciated.
Thanks,
Will Steed