12/18/2017 3:01 PM | |
Joined: 7/9/2015 Last visit: 8/30/2024 Posts: 3943 Rating:
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Hi, here are some reasons why you get the messages indicating that block SDB 7 cannot be loaded or that the block/OS update is too big when downloading with STEP 7 V5.x or STEP 7 (TIA Portal). - you have no MMC - put in an MMC that has enough capacity into the CPU. - MMC is defective. Replace the existing MMC with a new MMC. - CPU is defective and MMC is not recognized. You should consider this last possibility only if you have already replaced the MMC with a new one Also check How do you reset a SIMATIC S7-300 CPU and MMCRegards, Towome |
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8/22/2019 1:09 PM | |
Posts: 20 Rating:
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I think some issues with the hardware configuration. Chrck the hardware configuration properly and make sure that all GSD files are properly configured. |
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