Talk:Programmable logic control

Programmable Logic Controlmyolwinoo It is a very useful technology which is added the computer in control technology. In control technology, we must use Open and closed contacts to control the appratus. In PLC, there are 4 major parts, 1) Input unit. 2) CPU. 3) sensing unit. 4) Output unit. Are you really interested in? please answer accept or not. I was an Instructor from Government Technological College, Monywa, Myanmar. I touch that subject over 10 years. We used Germany software " a2010plus" It can use only by writing the command words. We can call it as " Instruction List ". It is a low level programming language and very difficult to use. But, In our country, we had not enough teaching aids like that. So that Modicon appratus was very valuable for us. I used it to tough over 1000 students in 10 years. Now, the main computer( just 386SX )was out of order.It's hard disk was damaged. Now my students are using it as just to see.