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They cost much because some people are willing to pay much for a quality product.
There are other ways to program PLC than ladder programming. You can program them using function blocks, structured text, instruction list, sequential function charts.. Those are all standard ways to program PLC logic.
Like I said. PLC is a complete product that you can plug into your industrial control system. That makes PLC superior over uC, that is why it is costly and that is why it differs from uC.
Take a look at this PLC system.. do you see the difference to uC? Do you see why it cost money? **broken link removed**
I am soon running out of popcorn here. Go ask further questions to the dedicated PLC forum. They are experts to answer all your fancy questions. https://www.plctalk.net/qanda/
OK, then how to do this??
one thing more i have seen one PLC training , which has only 5 or 6 input and 4 or 5 output but the cost was very high then uC and size was not so big like a small thick book, why?
one thing more i have seen one PLC training , which has only 5 or 6 input and 4 or 5 output but the cost was very high then uC and size was not so big like a small thick book, why?
I have no idea, maybe there is a bar of gold inside. Or maybe they have spend million dollars to develop that product. Maybe it ships with tons of software. You know that software is only the size of a CD and still it can be very expensive. Should it be cheap because it is small? That is just stupid.
So, what is the problem you are having? If you want to use the InTouch software, but you do not know how to connect to your system, then you should contact the official Wonderware Support. I can't help you with that. **broken link removed**
I have used in touch for making small automation....and connected PLC for LED test simple in college now i want to make uC based PLC connection to intounch without buying PLC....
I have used in touch for making small automation....and connected PLC for LED test simple in college now i want to make uC based PLC connection to intounch without buying PLC....
I asked what standard automation protocols it supports. Modbus ASCII would be the easiest to use, if it supports that. https://en.wikipedia.org/wiki/Modbus
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