12/1/2023 11:28 AM | |
Joined: 9/27/2006 Last visit: 9/2/2024 Posts: 12282 Rating:
|
Hello javier; From your screenshot it appears that you are sending most of your program into the internal RAM of the PLC and none to yhe Flssh EPROM card. Have you ever seen this FAQ, describing the memory structure of a S7-400: https://support.industry.siemens.com/cs/ca/en/view/7302549 The RAM of a S7-400 is split between internal RAM, in your case it seems to hold 250 kB, and external load memory, either a RAM or Flash EPROM card. If you have been only saving your program using a standard Download operation, you have been sending it all to the internal RAM, which is now full and the Flash EPROM is empty. "If you have a flash memory card plugged in, transfer blocks to the external load memory with "PLC >Load user program onto memory card". However, in the case of "PLC >Load user program onto memory card", the CPU has to be set to STOP mode first before the user program can be transferred." Use the procedure above to send your program blocks to the Flash card, where they will be supported without battery power, and the temporary Data of the running program will he handled by the internal RAM chips. You might have to do a memory reset to wipe the contents of the internal RAM, once the program has been downloaded to the Flash EPROM. Hope this gelos, Daniel Chartier |
Last edited by: dchartier at: 12/01/2023 11:32:20Last edited by: dchartier at: 12/01/2023 18:18:16 |
|
This contribution was helpful to
2 thankful Users |
Follow us on