frmfreqtester.frm

使用研华DAQ实现研华数据采集卡的多种功能。包括数据输入输出等。内含多个源码

VERSION 5.00
Object = "{4E2051E6-9099-11D2-A9D2-002018650913}#1.1#0"; "Adcounter.ocx"
Begin VB.Form frmFreqTester 
   Caption         =   "Freq Tester"
   ClientHeight    =   3900
   ClientLeft      =   45
   ClientTop       =   270
   ClientWidth     =   7065
   LinkTopic       =   "Form1"
   ScaleHeight     =   3900
   ScaleWidth      =   7065
   StartUpPosition =   2  'CenterScreen
   Begin DAQCounterLib.DAQCounter DAQCounter1 
      Height          =   495
      Left            =   5760
      TabIndex        =   24
      Top             =   240
      Width           =   495
      _Version        =   65537
      _ExtentX        =   864
      _ExtentY        =   864
      _StockProps     =   0
      ErrorCode       =   10002
      ErrorMessage    =   "The OpenDevice method must be called before performing any I/O operations."
      WatchdogTime    =   0
      WatchdogEnabled =   0   'False
   End
   Begin VB.CommandButton cmdExit 
      Caption         =   "Close"
      Height          =   372
      Left            =   5400
      TabIndex        =   17
      Top             =   960
      Width           =   1452
   End
   Begin VB.Frame Frame1 
      Caption         =   "Select Device :"
      Height          =   1212
      Left            =   120
      TabIndex        =   3
      Top             =   120
      Width           =   5055
      Begin VB.TextBox txtDeviceNum 
         Height          =   285
         Left            =   1320
         TabIndex        =   6
         Text            =   "-100"
         ToolTipText     =   "Device Number"
         Top             =   360
         Width           =   855
      End
      Begin VB.TextBox txtDeviceName 
         Height          =   285
         Left            =   1320
         TabIndex        =   5
         Text            =   "AdvanTech"
         ToolTipText     =   "Device Name"
         Top             =   720
         Width           =   3495
      End
      Begin VB.CommandButton cmdSelectDevice 
         Caption         =   "&Select Device"
         Default         =   -1  'True
         Height          =   375
         Left            =   3360
         TabIndex        =   4
         ToolTipText     =   "Selecting device to operation"
         Top             =   240
         Width           =   1455
      End
      Begin VB.Label Label1 
         AutoSize        =   -1  'True
         Caption         =   "Device No. :"
         Height          =   195
         Left            =   120
         TabIndex        =   8
         Top             =   405
         Width           =   900
      End
      Begin VB.Label Label2 
         AutoSize        =   -1  'True
         Caption         =   "Device Name :"
         Height          =   195
         Left            =   120
         TabIndex        =   7
         Top             =   765
         Width           =   1065
      End
   End
   Begin VB.Frame Frame2 
      Caption         =   "Property Settings:"
      Height          =   2295
      Left            =   120
      TabIndex        =   0
      Top             =   1440
      Width           =   3612
      Begin VB.TextBox txtGatePeriod 
         Height          =   285
         Left            =   1080
         TabIndex        =   14
         Top             =   1290
         Width           =   855
      End
      Begin VB.ComboBox cmbGateMode 
         Height          =   288
         ItemData        =   "frmFreqTester.frx":0000
         Left            =   1080
         List            =   "frmFreqTester.frx":0013
         TabIndex        =   13
         Top             =   840
         Width           =   1095
      End
      Begin VB.ComboBox cmbChannel 
         Height          =   288
         ItemData        =   "frmFreqTester.frx":0054
         Left            =   1080
         List            =   "frmFreqTester.frx":005B
         TabIndex        =   12
         Top             =   360
         Width           =   1095
      End
      Begin VB.TextBox txtScanTime 
         Height          =   288
         Left            =   1080
         TabIndex        =   1
         Text            =   "1000"
         Top             =   1800
         Width           =   855
      End
      Begin VB.Label Label10 
         Caption         =   "(only if PCL830)"
         Height          =   255
         Left            =   2280
         TabIndex        =   23
         Top             =   840
         Width           =   1215
      End
      Begin VB.Label Label9 
         Caption         =   "ms(only if PCL830)"
         Height          =   255
         Left            =   2040
         TabIndex        =   16
         Top             =   1320
         Width           =   1455
      End
      Begin VB.Label Label8 
         Caption         =   "ms "
         Height          =   255
         Left            =   2040
         TabIndex        =   15
         Top             =   1800
         Width           =   255
      End
      Begin VB.Label Label7 
         Caption         =   "Gate Period :"
         Height          =   252
         Left            =   120
         TabIndex        =   11
         Top             =   1320
         Width           =   972
      End
      Begin VB.Label Label6 
         Caption         =   "Gate Mode :"
         Height          =   252
         Left            =   120
         TabIndex        =   10
         Top             =   840
         Width           =   972
      End
      Begin VB.Label Label4 
         Caption         =   "Channel :"
         Height          =   252
         Left            =   120
         TabIndex        =   9
         Top             =   360
         Width           =   852
      End
      Begin VB.Label Label5 
         Caption         =   "Scan Time:                                    ms"
         Height          =   255
         Left            =   120
         TabIndex        =   2
         Top             =   1800
         Width           =   975
      End
   End
   Begin VB.Frame Frame3 
      Caption         =   "Freq Read:"
      Height          =   2295
      Left            =   3960
      TabIndex        =   18
      Top             =   1440
      Width           =   2892
      Begin VB.CommandButton cmdScanStop 
         Caption         =   "Scan Stop"
         Height          =   372
         Left            =   1680
         TabIndex        =   21
         Top             =   360
         Width           =   972
      End
      Begin VB.CommandButton cmdScanStart 
         Caption         =   "Scan Start"
         Height          =   372
         Left            =   240
         TabIndex        =   20
         Top             =   360
         Width           =   972
      End
      Begin VB.TextBox txtFreq 
         Height          =   288
         Index           =   0
         Left            =   1680
         TabIndex        =   19
         Text            =   "0"
         Top             =   1080
         Width           =   855
      End
      Begin VB.Timer ScanTimer 
         Interval        =   1000
         Left            =   2160
         Top             =   1680
      End
      Begin VB.Label Label3 
         Caption         =   "Frequency value :"
         Height          =   252
         Left            =   240
         TabIndex        =   22
         Top             =   1080
         Width           =   1332
      End
   End
End
Attribute VB_Name = "frmFreqTester"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub cmbChannel_Click()
    DAQCounter1.Channel = cmbChannel.ListIndex
End Sub

Private Sub cmbGateMode_Click()
    DAQCounter1.GateMode = cmbGateMode.ListIndex
End Sub

Private Sub cmdExit_Click()
   Unload Me
   End
End Sub

Private Sub cmdScanStart_Click()
    If DAQCounter1.OpenDevice Then
        MsgBox Adcounter1.ErrorMessage, vbOKOnly
        Exit Sub
    End If
    
    DAQCounter1.Channel = cmbChannel.ListIndex
    DAQCounter1.GateMode = cmbGateMode.ListIndex
    DAQCounter1.GatePeriod = Val(txtGatePeriod.Text)
    cmdSelectDevice.Enabled = False
    cmdScanStart.Enabled = False
    cmdScanStop.Enabled = True
    DAQCounter1.EnableFrequency True
    ScanTimer.Enabled = True
    cmdExit.Enabled = False
End Sub

Private Sub cmdScanStop_Click()
   ScanTimer.Enabled = False
   DAQCounter1.EnableFrequency False
   cmdSelectDevice.Enabled = True
   cmdScanStart.Enabled = True
   cmdScanStop.Enabled = False
   cmdExit.Enabled = True
    If DAQCounter1.CloseDevice Then
      MsgBox Adcounter1.ErrorMessage, vbOKOnly
      Exit Sub
   End If
End Sub

Private Sub cmdSelectDevice_Click()
    Dim Ret As Long
   
    Ret = DAQCounter1.SelectDevice
   
    txtDeviceNum.Text = DAQCounter1.DeviceNumber
    txtDeviceName.Text = DAQCounter1.DeviceName
   
    DAQCounter1.DeviceNumber = DAQCounter1.DeviceNumber
    DAQCounter1.DeviceName = DAQCounter1.DeviceName
   If DAQCounter1.OpenDevice Then
      MsgBox DAQCounter1.ErrorMessage, vbOKOnly
      Exit Sub
   End If
   
    If DAQCounter1.MaxCounterNumber = 0 Then
        MsgBox "Function Not Supported", vbOKOnly
        Unload Me
        End
    End If
    
   cmbChannel.Clear
   For i = 0 To DAQCounter1.MaxCounterNumber - 1
      cmbChannel.AddItem (Str(i))
   Next i
   
   If DAQCounter1.MaxCounterNumber Then
      cmbChannel.ListIndex = DAQCounter1.Channel
   End If
End Sub


Private Sub DAQCounter1_Click()

End Sub

Private Sub Form_Load()
   ' Select default device
    ScanTimer.Enabled = False
   Call cmdSelectDevice_Click

    txtDeviceNum.Text = DAQCounter1.DeviceNumber
    cmdScanStop.Enabled = False
    cmbChannel.ListIndex = DAQCounter1.Channel
    cmbGateMode.ListIndex = DAQCounter1.GateMode
    txtGatePeriod.Text = DAQCounter1.GatePeriod
End Sub

Private Sub Form_Unload(Cancel As Integer)
   ScanTimer.Enabled = False
   DAQCounter1.EnableFrequency False
   DAQCounter1.CloseDevice
End Sub

Private Sub ScanTimer_Timer()
   txtFreq(0).Text = DAQCounter1.FrequencyValue
End Sub

Private Sub txtDeviceNum_Change()
    DAQCounter1.DeviceNumber = Val(txtDeviceNum.Text)
    txtDeviceName.Text = DAQCounter1.DeviceName
End Sub

Private Sub txtScanTime_Change()
   ScanTimer.Interval = Val(txtScanTime.Text)
End Sub