Obtain value of a tension value in labview through node red

I want to get the value of a voltage from Labview to the red node, is it possible?

What APIs does lab is have?

I´m working with CompactRIO with OPCUA protocol

there are several nodes that can talk opcua

yes is that, access the voltage value of a node, but i don't now how i do it

Great then you probably are already using the right node for the job.

If you can access the voltage value you should be able to read it in nodered

yes is that, access the voltage value of a node in labview and transport them to the node red, but I do not know how to do it

There are a number of tutorials online that should help, on using OPC UA with node-RED would suggest starting there.