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...
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...
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...
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...