Using a custom firmware on multiple nodes

[MaLac]

Hi everyone,

I'm using custom firmware on my wsn-3226 nodes. I would like to use the same firmware on many nodes, but I think that if I send the .pkg file on all nodes, they will all update their data to the same variable since in the sample state we need to assign a variable to each channel output.

Is there a way to assign a variable that will "know" on witch node it is running. This will permit to create only one firmware and deploy it on all my nodes instead of creating (or modifying) a dozen of firmwares.

Thank you

Matt

[Brian_A]

Yes there is! Instead of dragging and dropping the variable you want to write to, use the Write Variable vi that is found under Data Communication >> Shared Variable. Then for shared variable refnum in use the path "ni.var.psp://localhost/localnode/AI0" without the quotes and change AI0 to whatever cannel you want to send. If you want to send user defined variables just use User0-User9 for the corresponding UDV, do not use the custom name you gave them. 

Brian A

R & D Product Support Engineer | WSN/Network DAQ/Academic

National Instruments

[REDS]

Hi MaLac,

Why are you concerned about deploying the same firmware to all the WSN-3226? Won't all your nodes acquire from the same 4 AI channels? Here is a KB that explains how to send the image to multiple nodes, in case you haven't found it yet. How do I programmatically deploy a WSN application image to multiple WSN nodes?

[MaLac]

Hi everyone,

Thank you for your answers.

I'm sorry, I asked the question before testing it. I was confuse because if I open the vi under an other node the variables are not OK, but if I deploy the pkg file, the variables are adjusted to the right nodes.

Thank you again.

Matt