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Entry type: FAQ Entry ID: 14053219, Entry date: 02/16/2006
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S7-300: How can I find out the size of the MCC so I can store my whole STEP 7 project on it?

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Description: 
In order to choose the appropriate MMC for your project you need to know the overall size of the project and the size of the blocks to be loaded. You can determine the size of the project as described below: 

First archive your STEP 7 project. Then open the archived project in Windows Explorer and determine its size (select and right-click). This gives you the size of the archived file.


Fig. 1

Load your blocks into the CPU. Now you still have to select "PLC > Module Information > Memory". There, in "Load memory RAM + EPROM", you can see the size of the assigned load memory.


Fig. 2: Load memory
 
 

You must add this value to the size of the archived project you have already determined. This gives you the overall amount of memory required to store your complete project on an MMC.

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