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M580 HSBY SD Card Usage

Title M580 HSBY SD Card Usage Issue M580 HSBY SD Card Usage Product Line M580 HSBY PAC Environment Unity Pro Cause N/A Resolution Regarding the  M580 HSBY SD Card Data Storage behavior. Changes made to an SD card in either the primary or standby CPU, using an elementary function, are not replicated in the SD card of the other CPU in the event of a switch-over. 
The application and the variables are transferred and checked but the files written by function blocks are not. 
The only way I believe to keep the SD cards equal is to solve all SD file functions in both the primary and secondary making sure the data written is transferred to both SD cards. 
So the SD file functions must be in a section that is solved on the standby.

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