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Recent content by garyg2006

  1. garyg2006

    Using tank level sensor to detect leaks

    Yes, there is Data file function. That should do it. Thanks again for the help.
  2. garyg2006

    Using tank level sensor to detect leaks

    Thanks, it makes sense and I can figure out how to mask it when emptying but I'm not sure how to create the PLC Variable for each cycle.
  3. garyg2006

    Using tank level sensor to detect leaks

    Just wrote my first function block program to monitor tank level in a batch process. The tank is incrementally filled over a 1 week period then gets processed and emptied manually. The Fill cycle is monitored by an ultrasonic level sensor using 4-20 mA input to a Crouzet PLC. I want to write...
  4. garyg2006

    PLC-function Block Programing

    thanks, I'll check it out.
  5. garyg2006

    PLC-function Block Programing

    Good Idea. I saved and attached the program file as a PDF. The analog input at the bottom of the logic page is the tank level sensor. I want an alarm message (such as input 2) if the level drops while the tank is filling over a 1 week period of...
  6. garyg2006

    PLC-function Block Programing

    Thanks for the tip but we have the sensor isolated with a standpipe and have been using it for 6 years without any problem. My concern is more about evaporation and level loss since we are now processing a different fluid. I'm more interested in help with sequence of the function blocks to...
  7. garyg2006

    PLC-function Block Programing

    Just started using Crouzet PLC function block programming. I have the basics but I am having trouble writing a step that uses a 4-20mA signal (ultrasonic tank level sensor)and calls via modem when the level drops below a fixed level after it begins to fill. This would only happen due to...

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