Write values in OPC via DSC

[Allende]

Hi!

I configured one OPC server in my computer to read and write values with siemens PLC.

Then I inserted variables on the proyect and I can read them perfectly. The problem appears when I want to write values. If I connect a boolean swicth directly to the variable and I start the application appears one error (FALLO1).jpg.

If I connect the swicth to the variable and execute it ONE TIME it works perfectly. It appears like I cannot connect directly the switch.It happens the same with analog values.

I need something in Labview to send data ONLY when the switch or variable change, like the VARIABLE MANAGER software. There If I change the value it works perfectly...

I hope I have explained...

Thanks a lot.

Bye.

[sendia]

Hi Allende,

Maybe you are having a timing problem. If you check this thread...

http://forums.ni.com/ni/board/message?board.id=170&message.id=267124&requireLogin=False

it is written that sometimes this problem is solved just using Wait functions.

Regards,