This video gives basic information on Using the Backup "Create PLC Image File" instruction in the Do-more Designer software. It presents information that is commonly missed by users. This WILL NOT be a complete tutorial for the instruction but rather a supplement to the help file and customer experience.
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This instruction only works with the BRX PLC. This will not work with the H2 or the T1H series PLCs. This instruction is used to make an image file of the PLC, that contains some or all the contents of the PLC. Once this Image file has been created it can then be restored to a BRX PLC from the micro SD card. Here you can select the file system to write the image to. Here is the base file name for the image. If this is text, you must use quotation marks. You can also use a string tag her, just exclude the quotation marks. These are the options that can be selected to define which contents, of the PLC, to include inside the image file. Under security if this portion is selected it will require that the PLC you are attempting to restore this image to, have the password stated here. If this is selected it will only allow this image to be restored to a CPU that has the matching Product ID Note, that this Instruction is an Edge triggered instruction, so it will require an off to on transition to execute. Due to this file size, this instruction is a multi-scan instruction. The processing of this instruction will be divided across successive scans of the PLC. Since this will not execute in one PLC scan, it will not be a true instant snapshot of a CPU at a given scan. The image file will contain the memory values on whatever PLC scan that section of memory was written to the image file. This instruction can be used in a Task or Program but cannot be used in Subroutines or Interrupt service routines.
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