Hi,

I have to make a change to 1 DB and 1 FB in a existing program on a S5-95U PLC. 

This PLC has an EEPROM module already in it.

After I have downloaded my changes to the CPU, do I just have to hold the "Copy" button for 3 seconds to update the changed DB and FB on the EEPROM.

Thanks.

Hello SS R;

May we recommend the S5-95U System Manual?

https://support.industry.siemens.com/cs/ww/en/view/1091648

Here is the complete sequence to save a modified program on the  EEPROM.

Hope this helps, 

Daniel Chartier 

Hello!

You should use this device to write in the EEPROM and need use a Light to erase the eeprom as well if not do that the eeprom is not able to write.

here the link:

https://mall.industry.siemens.com/mall/en/us/Catalog/Product/6ES77920AA000XA0

Thats needed with Eprom.

EEprom can be erased with PG

regards,

Marcjan