I'm using the following software:
Step7 v5.4 Professional
Simatic NET 6.4
I'm trying to control a process using a fuzzy control. I made the project in step 7 containing FB30 and DB30, I download it to the PLC S7-300 and then I open the FuzzyControl++ 5.0 software. I select from the menu Targetsystem->Select->S7-4K and after I press OK status remains Not Connected. If I leave it so and select Targetsystem->Connect I receive the following error Target_S7_FZ "While checking an authorisation, error 0 in call to function 0 occured" and the "Connect" window is blocked. I can only press Cancel or Help.
What could I do? Someone could help me?