11/4/2017 11:21 AM | |
Posts: 51 Rating: (0) |
CAn anybody help me? |
11/4/2017 1:55 PM | |
Joined: 9/27/2006 Last visit: 10/20/2024 Posts: 12289 Rating: (2688)
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Hello kucukyesiltepe; Here is the rule of thumb to select a RAM or FEPROM card for the S7-400: you must choose a memory support that can hold at least 1.5 times the used work memory of the CPU. If ypou plan to develop a project that could occupy the complete work memory of your CPU (you have not told us the complete part number of the CPU you are using, so I am using the data for the one shown in attachment, work memory 1MB) you would need 1,5 MB in the FEPROM card. The nearest available FEPROM card would be a 2MB card: 6ES7 952-1KL00-0AA0 That is only to hold the program memory, as shown here: S7-400: Saving the user program to FLASH EPROM when the module is slotted in the CPU Now, if you wish to add extra files to the FEPROM to keep hem for future use (we often would add a backup of the last program file, and sometimes drawings for client access) then you can purchase a larger size FEPROM to have room to add them. How can you also store other files that belong to the project or plant on the MC/MMC? This last link also shows the various size of FEPROM cards for the S7-400. Hope this helps, Daniel Chartier |
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