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letranlong

plc program errors

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hi everybody I have a question for you help me I have a plc program errors, but I don't understand plc program errors whats, please, everybody help me. in plc program of me, it's has there are some output H1.01 and H1.02 , H1.03 TO H1.19 , I don't understand. a few output this, it's operation the how ?? can you showed me output H1.01 and H1.02, H1.03 TO H1.19 ?? it's operation how ?? how is output H1.01 and H1.02, H1.03 TO H1.19 operation ???? I just see input H1.01 and H1.02, H1.03 TO H1.19, but I don't see output H1.01 and H1.02, H1.03 TO H1.19 where in plc program. where is output H1.01 and H1.02, H1.03 TO H1.19 in plc program ??? I have give for you a five plc program attach. please. can you help me http://goo.gl/37bcn1 Edited by letranlong

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H are holding areas. They are basically just bits which are backed up by the battery.

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