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Step 7 Version V5.4 + sp1 (Siemens S7 – 414)

Created by: PLC master at: 7/31/2009 3:37 PM (2 Replies)

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7/31/2009 3:37 PM	Rate (0)
PLC master Posts: 1 Rating: (0)	i have problem in the logic so upload the programe from PG station to plc pc . but i have problem now it i/o symbol and detail disctription is not shown so i want to recover it from my old logic back up which was taken befor one year. so how can i do plz guid
PLC master Posts: 1 Rating: (0)
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8/3/2009 6:45 AM	Rate (0)
Aret Posts: 2348 Rating: (265)	Take docs, look on process - and guess what signals are inside... No other way i guess, if there is no original programm.
Aret Posts: 2348 Rating: (265)
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8/3/2009 7:38 AM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	Hello, If I understood right, you want to prepare "good program" with all simbols from uploaded version of PLC program. Basically oposite is faster and easier, I mean from original project to build "new current" version. I suggest you just to compare ONLINE/OFFLINE all blocks, using backup program that you have. And prepare offline version directly to be the same with online program. And remember, depends from logic structure, sometimes with Upload Station to PG this doesn't means you'll open all block without "errors". Regards, Hristo Mihalev

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