vb3d.tmp

VB和西门子s300plc串口通讯程序 能实现读写功能

VERSION 5.00
Begin VB.Form DEMO_FRM 
   Caption         =   "演示"
   ClientHeight    =   2430
   ClientLeft      =   165
   ClientTop       =   855
   ClientWidth     =   5820
   Icon            =   "FrmMain.frx":0000
   LinkTopic       =   "Form1"
   ScaleHeight     =   2430
   ScaleWidth      =   5820
   StartUpPosition =   3  '窗口缺省
   Begin VB.ListBox List1 
      Height          =   1320
      Left            =   1800
      TabIndex        =   3
      Top             =   600
      Width           =   1695
   End
   Begin VB.TextBox Text1 
      Height          =   495
      Left            =   120
      TabIndex        =   2
      Text            =   "Text1"
      Top             =   120
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   615
      Left            =   120
      TabIndex        =   1
      Top             =   840
      Width           =   855
   End
   Begin VB.CommandButton CmdExit 
      Caption         =   "Exit"
      Height          =   375
      Left            =   3960
      TabIndex        =   0
      Top             =   1920
      Width           =   1335
   End
   Begin VB.Menu LOAD_MENU 
      Caption         =   "打开"
   End
   Begin VB.Menu READ_MENU 
      Caption         =   "读PLC"
   End
   Begin VB.Menu WRITE_MENU 
      Caption         =   "写PLC"
   End
   Begin VB.Menu AGINFO_MENU 
      Caption         =   "PLC信息"
   End
   Begin VB.Menu ABOUT_MENU 
      Caption         =   "关于"
   End
End
Attribute VB_Name = "DEMO_FRM"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub ABOUT_MENU_Click()
ABOUT_FRM.Show 1, Me
End Sub

Private Sub AGINFO_MENU_Click()
INFO_FRM.Show 1, Me
End Sub

Private Sub CmdExit_Click()
Unload Me
End Sub

Private Sub Command1_Click()
Dim i(2) As Integer
i(0) = &H2233
Call swab_buffer(i(0), 128)
Call swab_buffer(value_word(0), 512)
End Sub

Private Sub Form_Activate()

plcadr(0).ADR = 2
plcadr(0).SEGMENTID = 0
plcadr(0).RACKNO = 0
plcadr(0).SLOTNO = 2

'DEMO_FRM.AGINFO_MENU.Enabled = False
'DEMO_FRM.READ_MENU.Enabled = False
'DEMO_FRM.WRITE_MENU.Enabled = False
End Sub

Private Sub LOAD_MENU_Click()
LOAD_FRM.Show 1, Me
End Sub

Private Sub READ_MENU_Click()
READ_FRM.Show 1, Me
End Sub

Private Sub WRITE_MENU_Click()
WRITE_FRM.Show 1, Me
End Sub