Sorry lost all the formatting
Surely this shouldn’t be so difficult! I have a little
LabVIEW program running in the background of PC1. The exe’s task is to collect
and send OPC variables held on a SCADA system and convert them to shared
network variables (as I thought that they would be easy to share over a
network, easier than the nasty OPC and DCOM issues). I have PC2 which runs
measurement studio and I have created a nice test VB program which either
writes or reads the network variables which are on PC1. The PC1 collection
software is working perfectly and when I change the values on the SCADA system
I can see the network variable change on ‘NI Distributed System Manager’. I
When I look at ‘NI Distributed System Manager’ on PC2 I can’t see PC1 on the
list and when I use the basic measurement studio code below to read the network
variable it times out at the TestVariable.connect() line.
Ok so what do I need to do to read a shared network variable
sat on PC1 from PC2 on the network
Public Class Form1
Private
WithEvents TestVariable As NetworkVariableSubscriber(Of Double)
Private Sub Form1_Load(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles MyBase.Load
TestVariable = New NetworkVariableSubscriber(Of
Double)("\\192.168.58.139\Test\TestVariable")
TestVariable.Connect()
End Sub
Private Sub TestVariable_Data_Updated(ByVal sender As
System.Object, ByVal e As
NationalInstruments.NetworkVariable.DataUpdatedEventArgs(Of Double)) Handles
TestVariable.DataUpdated
TextBox1.Text = e.Data.GetValue
End Sub
End Class
