How to read logged variable in CBF
I have to shut down 800F controller every evening doing some experimentation.next morning when i start again i have to use the last value of a certain vaiable i.e the value before the last shutdown.ofcourse i am making OPL Log for this variable. So what are the ways to address the requirement .
Hi! For example, you need to save X variables. Create some function block, which have X input pins, X output pins and X internal variables with PARA_DPS type. In this function block, you write PARA_DPS var from the input pin and then write output pin from the PARA_DPS var (IN->PARA_DPS->OUT). When you want shutdown a controller, you can save PARA_DPS var to offline project (Downloading->Parameters), so by this way you save online var to offline project. See attach, there is function block for save one variable in attach file.