Storing and Loading Retentive Data to/from an SD Card

  1. from the RAM into the RAM-DISC using the module “RETAIN_SAVE” (or PLC browser command “retain save”)

  2. from the RAM DISC into the SD card using the module “RETAIN_EXPORT” (or PLC browser command “retain export”)

  1. from the SD card into the RAM-DISC using the module “RETAIN_IMPORT” (or PLC browser command “retain import”)

  2. from the RAM DISC into the SD card using the block “RETAIN_RESTORE” (or PLC browser command “retain restore”)

The documentation for the module you can found in the online help.

Depending on the CPU type, the files are stored to the following directories on the SD card:

AC500 CPU Directory File
PM5xy ..\UserData\PM5xy\RetDat RETAIN.BIN