Hello plc people!
One question about memory cards in the Siemens plc's...
In the old CPU 315-2 DP we were using EEPROM.
Then we had to Copy RAM to ROM to make sure that the plc still has the program if there is power lost...
In the new CPU 315-2, and most other new 300 Siemens plc's there is a small memory card and no place for battery...
Question:
Is there any need for doing the Copy RAM to ROM with the small memory cards, you can still do it and the Simatic is telling you it is doing it, but is there really any need??????
Thanks for answers
regards
Andreas
One question about memory cards in the Siemens plc's...
In the old CPU 315-2 DP we were using EEPROM.
Then we had to Copy RAM to ROM to make sure that the plc still has the program if there is power lost...
In the new CPU 315-2, and most other new 300 Siemens plc's there is a small memory card and no place for battery...
Question:
Is there any need for doing the Copy RAM to ROM with the small memory cards, you can still do it and the Simatic is telling you it is doing it, but is there really any need??????
Thanks for answers
regards
Andreas