A Practical Approach to PLC Validation

How many of you have validated Programmable Logic Controllers (PLCs) or computers in the past? How many of you are going to have to do it again? And how many of you think that it is an awful, complicated, and terrible thing to have to do? If the answer is "Yes," I used to feel that way as well.
My first experience with PLC validation was absolutely awful; I knew there had to be a better way. I knew that it had to be much easier than I had made it and that I could somehow communicate that to others.

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