rs485.frm

用VB编写的RS232测试软件

VERSION 5.00
Object = "{648A5603-2C6E-101B-82B6-000000000014}#1.1#0"; "MSCOMM32.OCX"
Begin VB.Form Form3 
   BackColor       =   &H00C0C000&
   Caption         =   "RS-485----R & D Labs"
   ClientHeight    =   8310
   ClientLeft      =   165
   ClientTop       =   450
   ClientWidth     =   11880
   ForeColor       =   &H00000000&
   LinkTopic       =   "Form2"
   ScaleHeight     =   8310
   ScaleWidth      =   11880
   StartUpPosition =   3  '窗口缺省
   Begin MSCommLib.MSComm MSComm2 
      Left            =   600
      Top             =   6480
      _ExtentX        =   1005
      _ExtentY        =   1005
      _Version        =   393216
      DTREnable       =   -1  'True
   End
   Begin VB.CommandButton Command1 
      Caption         =   "计算"
      Height          =   375
      Left            =   7200
      TabIndex        =   13
      Top             =   1320
      Width           =   855
   End
   Begin VB.CommandButton Command2 
      Caption         =   "发送"
      Height          =   375
      Left            =   5640
      TabIndex        =   12
      Top             =   3600
      Width           =   855
   End
   Begin VB.CommandButton Command4 
      Caption         =   "采集"
      Height          =   375
      Left            =   2520
      TabIndex        =   11
      Top             =   1800
      Width           =   1575
   End
   Begin VB.Timer Timer1 
      Enabled         =   0   'False
      Interval        =   1000
      Left            =   720
      Top             =   0
   End
   Begin MSCommLib.MSComm MSComm1 
      Left            =   0
      Top             =   0
      _ExtentX        =   1005
      _ExtentY        =   1005
      _Version        =   393216
      DTREnable       =   -1  'True
      RTSEnable       =   -1  'True
   End
   Begin VB.Label T1 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H8000000A&
      Caption         =   "AD1 "
      ForeColor       =   &H80000008&
      Height          =   495
      Left            =   720
      TabIndex        =   10
      Top             =   2400
      Width           =   1575
   End
   Begin VB.Label P1 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      Caption         =   "AD2 "
      ForeColor       =   &H80000008&
      Height          =   495
      Left            =   720
      TabIndex        =   9
      Top             =   3120
      Width           =   1575
   End
   Begin VB.Label flow1 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      Caption         =   "AD3 "
      ForeColor       =   &H80000008&
      Height          =   495
      Left            =   720
      TabIndex        =   8
      Top             =   3840
      Width           =   1575
   End
   Begin VB.Label heat 
      Alignment       =   2  'Center
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      BorderStyle     =   1  'Fixed Single
      Caption         =   "AD4 "
      ForeColor       =   &H80000008&
      Height          =   495
      Left            =   720
      TabIndex        =   7
      Top             =   4560
      Width           =   1575
   End
   Begin VB.Label aflow1 
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      Height          =   495
      Left            =   6960
      TabIndex        =   6
      Top             =   1800
      Width           =   1575
   End
   Begin VB.Label Label3 
      Alignment       =   2  'Center
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      Height          =   495
      Left            =   2520
      TabIndex        =   5
      Top             =   3840
      Width           =   1575
   End
   Begin VB.Label Label1 
      Alignment       =   2  'Center
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      Height          =   495
      Left            =   2520
      TabIndex        =   4
      Top             =   2400
      Width           =   1575
   End
   Begin VB.Label Label2 
      Alignment       =   2  'Center
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      Height          =   495
      Left            =   2520
      TabIndex        =   3
      Top             =   3120
      Width           =   1575
   End
   Begin VB.Label Label4 
      Alignment       =   2  'Center
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      Height          =   495
      Left            =   2520
      TabIndex        =   2
      Top             =   4560
      Width           =   1575
   End
   Begin VB.Label Label5 
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      Height          =   495
      Left            =   4440
      TabIndex        =   1
      Top             =   4560
      Width           =   5055
   End
   Begin VB.Label date1 
      Alignment       =   2  'Center
      BackColor       =   &H00800000&
      BorderStyle     =   1  'Fixed Single
      Caption         =   " "
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FFFFFF&
      Height          =   375
      Left            =   9120
      TabIndex        =   0
      Top             =   0
      Width           =   2655
   End
End
Attribute VB_Name = "Form3"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub communication1()    'RS-485串口通讯
    Dim Dummy As Integer
    Dim i As Integer
    MSComm1.CommPort = 1     ' Use COM1.
    ' 9600 baud, no parity, 8 data, and 1 stop bit.
    MSComm1.Settings = "9600,n,8,1"
    ' Tell the control to read entire buffer when Input is used.
    MSComm1.InputLen = 0
    MSComm1.PortOpen = True       ' Open the port.
    MSComm1.InBufferCount = 0
    MSComm1.Output = Chr$(&H23) '#
    Delay10
    MSComm1.Output = Chr$(&H30) '0
    Delay10
    MSComm1.Output = Chr$(&H31) '1
    Delay10
    MSComm1.Output = Chr$(&H30) '0
    Delay10
       
' Wait for data to come back to the serial port.
    i = 0
    Do
        Dummy = DoEvents()
        i = i + 1
    Loop Until MSComm1.InBufferCount >= 39 Or i > 30000
    ' Read the "OK" response data in the serial port.
    inst = MSComm1.Input
    MSComm1.PortOpen = False      ' Close the serial port.
      
    Label1.Caption = Mid(inst, 7, 5)    '显示通道1电压
    Label2.Caption = Mid(inst, 16, 5)   '显示通道2电压
    Label3.Caption = Mid(inst, 25, 5)   '显示通道3电压
    Label4.Caption = Mid(inst, 34, 5)   '显示通道4电压
    
    Label5.Caption = inst
End Sub

Private Sub Delay10()
    Dim i As Integer
    For i = 0 To 30000
    Next i
End Sub

Private Sub Command2_Click()
    MSComm2.CommPort = 2     ' Use COM2.
       ' 9600 baud, no parity, 8 data, and 1 stop bit.
    MSComm2.Settings = "9600,n,8,1"
    ' Tell the control to read entire buffer when Input is used.
    MSComm2.InputLen = 0
    MSComm2.PortOpen = True       ' Open the port.
    MSComm2.InBufferCount = 0
    MSComm2.Output = Chr$(&H30) '0   发0123
    MSComm2.Output = Chr$(&H31) '1
    MSComm2.Output = Chr$(&H32) '2
    MSComm2.Output = Chr$(&H33) '3
    MSComm2.PortOpen = False      ' Close the serial port.
End Sub

Private Sub Command4_Click()
   Timer1.Enabled = True
End Sub

Private Sub fheat_Click()

End Sub

Private Sub Timer1_Timer()
    Dim cminute As String
    date1.Caption = Now                 '显示当前日期时间
    NowTime = Time$                     '取当前时间
    sec = Mid$(NowTime, 7, 2)           '取当前秒
    cminute = Minute(NowTime)           '取当前分
   
    communication1               '通讯

End Sub