i use Daqcard-1200, which only supported by 6.9.3 version. so I only can use 6.9.3's daq function, I can open front pannel, and dont know how to open therelated block diagram. Thank you
What VI are you talking about? Normally a CTRL+E will show the block diagram but if the VI was saved without a block diagram, it doesn't exist anymore to view. You also can't veiw a block diagram if it's password protected. Do you get a prompt asking for the password?