C /C++ in PLC or in Automation

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Thread Starter

anonymous

Hi to all automation engineers..

Anyboday can help me what is C/C++ in PLC?
i know how to program PLC using laptop, i know how to configure the data. Wiring installation.
i'm using ladder method. Our PLC is Melsec and we used GX-Developer software and Omron we used CX-programmer.

My question is sometimes there's a hiring need [for a] technician or engineer in PLC [requiring] C++. how it means?

C++ is the same of statement list like ( OR , LOAD , ORB , ANDB and etc.. ) ( then , if , go and etc.. ) programming.

My last question: [Is] the Melsec GX-developer software available to program in C++?
 
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Michael Griffin

If I had to guess without seeing the actual item you are referring to, I would guess that the requirement is for someone to do mainly PLC programming, but must also be able to do C and C++ programming for PC projects.
 
S
Maybe it's because not all PLCs uses LADDER (LAD) Logic or Function Block Diagram (FBD). In some cases, Statement List (STL) programming is used. In this case, a background in computer programming (maybe C or C++) is a must. Siemens PLCs do support this kind of programming, and I guess other PLCs support this too. Since most PLC programmers are not that adept in computer programming, this is rarely used in the industry...
 
S
Anyway, programming languages like C, C++, and Visual Basic are also used (mostly) on HMI development. They are used in scripting of various HMI softwares. It is a big plus if you know how to program a PLC and at the same time, program an HMI.
 
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Jarmo Aaltonen

Hi!

I am an electronic automation specialist from Finland. What I have noticed is that user interfaces in automation cells are quite often created by VB or C++. So if you work with independent automation cells it is a big advantage if you handle both tools, PLC and, for example, C++. You reach a bigger number of customers, and if you have a company of your own you can charge a better hourly price.
 
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