Control from pda

[PolySam]

Hello,

I am designing an application in labview 8 with TCP communication with an HP PDA (Pocket PC 2003). (I was based on the example PDA TCP Data Client/Server)

I would like to use the same numeric control from the computer AND the PDA. So if I change the control on the computer, the control on the PDA will be updated; and if I change the control on the PDA, the value on the computer should be updated too.

The problem I am facing is in the “2-way update”: If I change the value on the PDA, it will be updated on the computer but I cannot update the control on the computer anymore because the PDA will keep sending its value. I modified the program and I got the problem reversed: I change the control on the computer, it is send to the PDA, but I cannot update the PDA anymore, it will keep receiving the value from the computer. I tried to store the received values in different variables and to use time delay but arrived to a dead end.

Any advice is appreciated.

Thank you

Sam

[johnny_icon]

Hi PolySam

I've solved a similar problem by utlizing the Shared Variables feature. You probably need to Poll the variable, unless you come up with a cool way to trigger an event. Make sure to deploy the Shared Variable support on the PDA.

A simple numeric control shouldn't be too bad,  I was trying to do something more complex like a cluster of controls and ran into some bugs that I still need to report to NI.

Good Luck!