6/5/2011 11:07 AM | |
Posts: 947 Rating: (45) |
Hi I use S7-400 with flash. for save data, parameter i use CPU312 with MMC - card. CPU s7-414 after start read by MPI all need stored data from CPU312. |
6/6/2011 10:28 AM | |
Joined: 2/6/2009 Last visit: 3/21/2024 Posts: 938 Rating: (118) |
Hi, I got the solution from the maual collection of S7 400. The RAM card is only to expend internal load memory of the CPU and it cannot store the program backup, it need battery for that. The FLASH card is also provids the extension to Load memory, but ut can store the program backup without battery also. Any way thank you very much to all. I have attached the pages from the manual for your reference.
AttachmentRAM vs Flash Memory cards.pdf (370 Downloads) |
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6/6/2011 12:57 PM | |
Joined: 1/28/2009 Last visit: 4/1/2024 Posts: 6836 Rating: (1359) |
Check the following FAQ: How can I get an overview of the S7-400 memory concept?
regards |
6/7/2011 1:44 PM | |
Joined: 7/2/2008 Last visit: 4/5/2024 Posts: 928 Rating: (305) |
Hello Tagolover,Why so? I don't have big experience with PCS7 but I think you can use both RAM & FEPROM. Idon'trecommend FEPROMs butit stillcan be used.
Best regards. H-H |
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