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Found 4 results

  1. Hello, I need to add two columns to an existing Data Table, in VisiLogic this can be done without losing values, I'm not sure how it works in UniLogic, I remember once editing it and all values went to 0. Can I add a member to Data Table struct and retaining values in old columns? I would back up old table, but problem is that I can't read the values in online mode and back them up, I get this error: Connection to plc was over Ethernet, ladder works normally in online mode so I wouldn't say it's a connection issue. If new columns cannot be added without losing values, my se
  2. Im looking for some assistance in a program I have set up for a scheduled heat / AC program. The way it is set up, the user has four time setting options to be able to change the temperature four times throughout the day. I am using the digital time wheels with an RTC struct for the way to input the time settings and then converting the RTC to an ASCII string so that the user can see all of the settings in the data table which is displayed on screen. The problem I am having is when I extract the time strings back out of the data table I have no way to compare to the System RTC to trigger th
  3. I have a question regarding Data Tables and the "retained" option. I have some rather large tables, to big to have them all as retained. But I still want to keep the values in case of Power failure. In your help function it is noted that Data Tables reside the SD card.. Still there is an option if they should be "retained". But is it not retained anyway if it is stored in the SD? Will they always be recovered from the SD card at power up? Or does it have to be done using the "store to file" and "load from file" functions? In my application is acceptable to store the tables periodically
  4. What is the maximum no of rows that we can assign to in a vision 130. In my case I am getting restricted at 9000
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