10/13/2020 9:37 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello David; The Step 7 program gives you tools to know the memory usage of the memory card (Load Memory) of your CPU: SIMATIC S7-1500, S7-1500R/H, SIMATIC Drive Controller, ET 200SP, ET 200pro Structure and Use of the CPU Memory https://support.industry.siemens.com/cs/ww/en/view/59193101/127740860811 The calculation provided does not take into account the "extra" files that are loaded on the memory card, such as the hardware configuration. It is generally good practice to purchase a memory card that gives you at least some leeway compared to the Step 7 percentage of use. We always used at least 1.5 times the space on the memory card that our PLC information showed, more if project documents such as pdfs were loaded on the memory card. Hope this helps, Daniel Chartier |
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