SLC 500 Battery expired not EEPROM

Scott180zip

Member
S
Join Date
Oct 2008
Location
Brunswick, OH
Posts
16
1.) ROM/RAM FLASH MEMORY: The SLC500 RAM battery lasts (2) years as I recall. On a non-EEPROM memory - if the battery is not replaced and the PLC is powered down, does the processor lose all of its memory?

2.) How can you verify the date a program was written if it was saved with no changes made: meaning the last date changes were made. Is there a tracking log?

3.) Which PLC Manufactures are using Flash Memory?

Thank you.:confused:
 
Last edited:

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