SCADA connect with a OMRON PLC

[weiran]

I'm working with a SCADA that can view whether the machine is ON or OFF. It will connect a computer, OMRON PLC and 8 machines together. but the 8 machines are old machine that do not have their own PLC. the plc model is CJ1M-CPU21. when the start button of the machine is press, which means it is ON, and it can display in the SCADA to show that the machine is running now. 1) so is just connect the start button with the input of the OMRON PLC. is it possible to do that? 2) and how do i program the plc. I had done a project before that, but the machines i had connect are consist of their own plc. and the signal or data is move from a register to another so that the scada able to read and write to the machines. but now it is only a master plc and the machine does not have their own plc, so i still need to move from a register to another for write and read?

[WellSCADA]

The start button should be connected to the PLC output. Your machine may have a feedback for the input registers, but if it doesn't have it, you may just use the output register display the machine running on the screen in SCADA software. It may not real running, but only indicate you press the button to start the machine. Sometime it works only for showing a animation graphics. www.wellintech.com Edited May 24, 2012 by WellSCADA