ab_test.frm

vb与AB PLC通讯源码

VERSION 5.00
Begin VB.Form Form1 
   Appearance      =   0  'Flat
   BackColor       =   &H80000005&
   Caption         =   "DF1 Test"
   ClientHeight    =   4695
   ClientLeft      =   465
   ClientTop       =   1920
   ClientWidth     =   7140
   ForeColor       =   &H80000008&
   LinkTopic       =   "Form1"
   PaletteMode     =   1  'UseZOrder
   ScaleHeight     =   4695
   ScaleWidth      =   7140
   Begin VB.CommandButton Command2 
      Appearance      =   0  'Flat
      Caption         =   "Write"
      Height          =   540
      Left            =   2745
      TabIndex        =   3
      Top             =   3015
      Width           =   1020
   End
   Begin VB.CommandButton Command1 
      Appearance      =   0  'Flat
      Caption         =   "Read"
      Height          =   555
      Left            =   1620
      TabIndex        =   2
      Top             =   3015
      Width           =   1020
   End
   Begin VB.CommandButton Exit 
      Appearance      =   0  'Flat
      Caption         =   "Exit"
      Height          =   555
      Left            =   480
      TabIndex        =   1
      Top             =   3015
      Width           =   1005
   End
   Begin VB.TextBox Text1 
      Appearance      =   0  'Flat
      Height          =   2130
      Left            =   360
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   0
      Top             =   360
      Width           =   4935
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
ReDim tb%(10)
Dim st

  If ReadTable(0, tb%()) Then
   
   'display results
   For st = 0 To 9
    Text1.SelText = Str(tb%(st)) + Chr(32)
   Next st
   Text1.SelText = Chr(13) + Chr(10)
  
  End If
  
End Sub

Private Sub Command2_Click()
ReDim tm%(5)

 tm%(0) = Rnd * 32768
 tm%(1) = Rnd * 32768
 tm%(2) = Rnd * 32768
 tm%(3) = Rnd * 32768
 tm%(4) = Rnd * 32768

 If Not WriteTable(4, tm%()) Then
  Text1.SelText = "Error Writing"
 End If

      
End Sub

Private Sub Exit_Click()

 End

End Sub