11/28/2015 1:23 AM | |
Joined: 9/27/2006 Last visit: 9/19/2024 Posts: 12282 Rating: (2684)
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Hello Zero; What is the part number of the MMC inserted in the CPU? How much memory is it designed for? Please read the following document, on the memory concept of a S7-300 CPU: https://support.industry.siemens.com/cs/ww/en/view/7302326 Your bottleneck is in load memory (the CPU's internal work memory has 384 kB, and that value cannot be changed) and for these CPUs the load memory is completely in the MMC you insert in the front slot. You receive this message because your MMC is too small for your program (it should be at least as large as the work memory you plan to use). See this attachment also, taken from the S7-300 CPUs technical specifications manual: https://support.industry.siemens.com/cs/ww/en/view/12996906 Hope this helps, Daniel Chartier |
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11/28/2015 9:26 AM | |
Joined: 3/28/2015 Last visit: 8/25/2024 Posts: 721 Rating: (213) |
Hello, Perhaps the following topics might help: 1-How can you determine the size of the load memory and main memory of a SIMATIC S7-300/400 CPU?2-Which memory cards can you use with an S7-300 CPU? S7-300_Memorycard.pdf |
Eng.Mohamed Ibrahim |
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