4/14/2008 2:05 AM | |
Posts: 2661 Rating: (279) |
You can set the retentive memory bytes in the CPU properties, Retentive Memory tab. See attachment. The data blocks are generally retentive with battery backup. See the online help for a detailed description. I cannot think of any other way to view the memory except via VAT. You could transfer the entire memory area to a data block using SFC20: Block Move and view the memory status in the DB. But I do not see any great advantage in doing this. AttachmentDokument1.pdf (837 Downloads) |
4/14/2008 6:11 PM | |
Posts: 2661 Rating: (279) |
pici_c: The pulse flags can be defined in the CPU properties Cycle/Clock memory tab. The assigned frequencies are described in the online help. See attachment. The first cycle flag (for each OB), you have to create yourself in the program. BTW, OB2 to OB9 are not used in S7. In S5 they are used for interrupt processing. Regards AttachmentDokument1.pdf (372 Downloads) |
4/15/2008 6:49 AM | |
Posts: 487 Rating: (36) |
Hi pici_c If your PLC is online then use the S7-manager to get the information on the PLC , see picture |
4/16/2008 12:58 AM | |
Posts: 2661 Rating: (279) |
Try using menu command PLC/Copy RAM to ROM and verify that the retentive memory and DB's are saved. See attachment Regards, Phantom Correction: The load memory stored in the MMC is automatically retentive. See new attachment AttachmentMemory Concept.pdf (467 Downloads) |
Last edited by: Phantom75 at: 4/16/2008 8:22 PMAdded Correction |
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