Hi,

I am newbie in this PLC programming and I don't have much idea abt it. I have one PLC program developed using KW-Software. I am also using same software to deal with PLC prog. This PLC prog. has some input and some output now my first task in this PLC world is to read output variable.

My question is how to read it? Which language or what mechanism will help me to read that output variable?

If anyone of you can share a sample prog. to read out put variable then I really appreciate it.

Thanks,
HJ

 

What PLC family are you referring to?

ABB
Delta V
Honeywell
Rockwell (Alan Bradley)
Siemens
Toshiba
Yokogawa

etc.

Each one of these companies have proprietary software, and for each of them the coding will be different. Some engineering software applications allow the user to view memory areas directly in a memory map area. With others a table with variables need to be setup for viewing. Not knowing the type of PLC, giving advice will be difficult.

 

Here's two links for ABB & Toshiba. Do a Google search. You'll get lots of info on each manufacturer.

Toshiba PLC Software
ABB PLC Software

 

Is it an analog or digital output?

Is the PLC software using ladder?

 

Here's two links for ABB & Toshiba. Do a Google search. You'll get lots of info on each manufacturer.

Toshiba PLC Software
ABB PLC Software

this looks great and really easy to follow - thanks a lot for posting and sharing it.
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