redgated

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About redgated

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  1. Q03UDVCPU power data retention

    redgated replied to redgated's topic in Mitsubishi

    Yes here I thought but I can't access the SD card!

  2. Q03UDVCPU power data retention

    redgated replied to redgated's topic in Mitsubishi

    I thought that would be an option but how do I create the file register on the SD card? File register settings not available in Device at the moment.  

  3. Q03UDVCPU power data retention

    redgated posted a topic in Mitsubishi

    I have a Q03UDVCPU and an unusual application whereby the PLC is frequently powered down and the data needs to be backed up without a battery. I have already configured the SD card to carry the program and the initial data, but I have some program derived data that I would like to record at power down and restore on power up, previously this was straighforward with battery back-up but seems not so easy without. Any ideas please?