Difference between revisions of "Talk:Subscribing to PLC data via code"

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(I could use a little help.)
 
(Blanked the page)
 
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Hello. Below is a slightly modified version of the code provided on the "Subscribing to PLC data via code" page. I am attempting use this concept with multiple tags of various data types. I have found that I pretty much have to make multiple calls in order to achieve this but I'm by no means an expert at coding. Is there a better way to achieve this???
 
  
 
Imports MfgControl.AdvancedHMI
 
 
Public Class Form1
 
 
    Private SubscriptionID1 As Integer
 
    Private SubscriptionID2 As Boolean
 
 
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
 
        SubscriptionID1 = OpcDaCom1.Subscribe("One.TestWord", 1, 500, AddressOf Subscription_DataReceived)
 
        SubscriptionID2 = OpcDaCom1.Subscribe("One.ONBOARD_INPUT_BIT0", 1, 500, AddressOf Subscription_DataReceived2)
 
    End Sub
 
 
    Private Sub Subscription_DataReceived(sender As Object, e As Drivers.Common.PlcComEventArgs)
 
        If e.ErrorId = 0 AndAlso e.Values IsNot Nothing AndAlso e.Values.Count > 0 Then
 
            Label1.Text = e.Values(0)
 
            EthernetIPforCLXCom1.Write("Word", e.Values(0))
 
        End If
 
    End Sub
 
    Private Sub Subscription_DataReceived2(sender As Object, e As Drivers.Common.PlcComEventArgs)
 
        If e.ErrorId = 0 AndAlso e.Values IsNot Nothing AndAlso e.Values.Count > 0 Then
 
            Label2.Text = e.Values(0)
 
            If e.Values(0) = "True" Then EthernetIPforCLXCom1.Write("ZZ", 1) Else EthernetIPforCLXCom1.Write("ZZ", 0)
 
        End If
 
    End Sub
 
 
    Private Sub MainForm_FormClosing(sender As Object, e As FormClosingEventArgs) Handles Me.FormClosing
 
        OpcDaCom1.UnSubscribe(SubscriptionID1)
 
        OpcDaCom1.UnSubscribe(SubscriptionID2)
 
    End Sub
 
 
 
End Class
 

Latest revision as of 11:41, 14 March 2018