Good annotation and/or Tags help a lot, and should be encouraged. Your statement was effective communication - I just don't fully agree with it. Long winded, techno-jargon, business-speak morons who think they are the "Great Communicator" and go on and on for thirty minutes without communicating anything really get my goat. The key word there is "effective." It is one of the hardest things to accomplish. It dosen't matter if that communication is comments within a PLC program, a chat with a son or daughter, a letter to a customer and so on. However, EFFECTIVE communication is the most important aspect of our lives. If the comments are meaningless (see the comments on rung 5 & 6) then they are useless. I both agree and disagree with you about comments. I can redo the LIM statements so that there is a. The only thing that I could see as an issue is the fact that if the PLC stopped running and the timer was at 20, 100, 160, or 240 that you would have multiple lights on at once.
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