frmmain.frm

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       =   555
   ClientWidth     =   5820
   Icon            =   "FrmMain.frx":0000
   LinkTopic       =   "Form1"
   ScaleHeight     =   2430
   ScaleWidth      =   5820
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton CmdExit 
      BackColor       =   &H00C000C0&
      Caption         =   "退出"
      BeginProperty Font 
         Name            =   "Comic Sans MS"
         Size            =   18
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   4320
      TabIndex        =   0
      Top             =   1920
      Width           =   1335
   End
   Begin VB.Label Label2 
      Caption         =   "Good Luck!"
      BeginProperty Font 
         Name            =   "Comic Sans MS"
         Size            =   18
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   615
      Left            =   1680
      TabIndex        =   2
      Top             =   1320
      Width           =   2415
   End
   Begin VB.Label Label1 
      Caption         =   "请您首先点击“打开”菜单         建立与PLC的连接！"
      BeginProperty Font 
         Name            =   "Comic Sans MS"
         Size            =   18
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   1095
      Left            =   840
      TabIndex        =   1
      Top             =   120
      Width           =   4095
   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 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