|CODESYS - the IEC 61131-3 automation software
|Saving and restore persitent variables
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|Author:||woutercosman [ Mon Feb 25, 2019 4:20 pm ]|
|Post subject:||Saving and restore persitent variables|
I have a wago plc 750-8202 that i would like to replace by a wago 750-8212. therefore i need to be able to save my current values of my persistent vars to my pc or sd card so i can upload them to the new controller. i tried too do this with the SysPlcCtrl23 lib. by using the SysSaveRetains function. i stored the file to the flash of the controller and then tried to open it by accessing the file with an ftp connection. when i open the file, it gives me all kinds of symbols but not the values i see in the program. i tried to restore the values back to the controller but it doesn't seem to do anything.
anybody an idea how i can extract the actual values of the persitent vars to my pc and then load therm in to my new controller?
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