Problem with PID Parameter assignment interface.

[karkas44 0]

Hello everybody,

 

     I am trying to set an FB58 to control the Temperature in  a spray dryer. I have copied and pasted the FB58. the OB35, the OB100 and the DB58 from the sample project in Step 7 to my project—eliminating the call to the FB100, the process simulation—but there's a problem when I try to open the DB58 from the parameter assignment interface, it says it's not an instance data block, even when it clearly states in its properties dialog that it's the instance data block for the FB58.

     Also, I would like to know what value should I use for the SELECT parameter when using continuous control. I don't really see that in the manual.

 

Thanks in advance.