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📄 kepserverex_simple_vb_opc.frm

📁 Simple OPC client,值得研究。
💻 FRM
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      TabIndex        =   20
      ToolTipText     =   "Enter an OPC Item name in the form of ServerBranch.ServerItem"
      Top             =   4680
      Width           =   2775
   End
   Begin VB.TextBox OPCItemName 
      Enabled         =   0   'False
      Height          =   285
      Index           =   2
      Left            =   120
      TabIndex        =   19
      ToolTipText     =   "Enter an OPC Item name in the form of ServerBranch.ServerItem"
      Top             =   4320
      Width           =   2775
   End
   Begin VB.TextBox OPCItemName 
      Enabled         =   0   'False
      Height          =   285
      Index           =   1
      Left            =   120
      TabIndex        =   18
      ToolTipText     =   "Enter an OPC Item name in the form of ServerBranch.ServerItem"
      Top             =   3960
      Width           =   2775
   End
   Begin VB.TextBox OPCItemName 
      Enabled         =   0   'False
      Height          =   285
      Index           =   0
      Left            =   120
      TabIndex        =   17
      Text            =   "Applications.ATCE_App1.Program2.Counter_FB_1.Counter"
      ToolTipText     =   "Enter an OPC Item name in the form of ServerBranch.ServerItem"
      Top             =   3600
      Width           =   2775
   End
   Begin VB.Frame OPCGroupFrame 
      Caption         =   "Add Group to OPC Server"
      Height          =   2775
      Left            =   3720
      TabIndex        =   7
      Top             =   0
      Width           =   4335
      Begin VB.CommandButton RemoveOPCGroup 
         Caption         =   "Remove Group"
         Enabled         =   0   'False
         Height          =   255
         Left            =   2280
         TabIndex        =   16
         ToolTipText     =   "Click here to remove a group from the OPC Server, you must first remove the items if any"
         Top             =   1800
         Width           =   1935
      End
      Begin VB.CommandButton AddOPCGroup 
         Caption         =   "Add Group"
         Enabled         =   0   'False
         Height          =   255
         Left            =   120
         TabIndex        =   15
         ToolTipText     =   "Once you have entered a group name and it's settings click here to add the group"
         Top             =   1800
         Width           =   1935
      End
      Begin VB.CheckBox GroupActiveState 
         Alignment       =   1  'Right Justify
         Caption         =   "Group Active"
         Enabled         =   0   'False
         Height          =   255
         Left            =   840
         TabIndex        =   14
         ToolTipText     =   "The active determines if the group is actively updating or not, this can be changed at any time"
         Top             =   1320
         Value           =   1  'Checked
         Width           =   1335
      End
      Begin VB.TextBox GroupDeadBand 
         Enabled         =   0   'False
         Height          =   285
         Left            =   1920
         TabIndex        =   13
         Text            =   "0"
         ToolTipText     =   "Enter the percentage of change an item must make before it is returned to the client, the default is 0 percent"
         Top             =   960
         Width           =   1695
      End
      Begin VB.TextBox GroupUpdateRate 
         Enabled         =   0   'False
         Height          =   285
         Left            =   1920
         TabIndex        =   11
         Text            =   "10"
         ToolTipText     =   "Enter how often you want the the server to refresh items in this group, this can be changed at any time"
         Top             =   600
         Width           =   1695
      End
      Begin VB.TextBox OPCGroupName 
         Enabled         =   0   'False
         Height          =   285
         Left            =   1920
         TabIndex        =   9
         Text            =   "Group1"
         ToolTipText     =   "The group name can be anything you like but it must always be unique"
         Top             =   240
         Width           =   1815
      End
      Begin VB.Label Label6 
         Caption         =   "Deadband  (%)"
         Height          =   255
         Left            =   720
         TabIndex        =   12
         Top             =   960
         Width           =   1095
      End
      Begin VB.Label Label5 
         Caption         =   "Update Rate (ms.)"
         Height          =   255
         Left            =   480
         TabIndex        =   10
         Top             =   600
         Width           =   1335
      End
      Begin VB.Label Label1 
         Alignment       =   1  'Right Justify
         Caption         =   "Group Name"
         Height          =   255
         Left            =   480
         TabIndex        =   8
         Top             =   240
         Width           =   1215
      End
   End
   Begin VB.CommandButton ExitExample 
      Caption         =   "Quit"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   13.5
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   390
      Left            =   8280
      TabIndex        =   5
      Top             =   120
      Width           =   855
   End
   Begin VB.TextBox OPCServerName 
      Height          =   285
      Left            =   1080
      TabIndex        =   4
      Text            =   "Click on list above to select"
      ToolTipText     =   "You can select an OPC Server from the list above or enter one here"
      Top             =   1680
      Width           =   2055
   End
   Begin VB.ListBox AvailableOPCServerList 
      Height          =   1035
      Left            =   120
      TabIndex        =   2
      ToolTipText     =   "Select an OPC Server from the list and press the 'Connect' button below"
      Top             =   600
      Width           =   3015
   End
   Begin VB.CommandButton ListOPCServers 
      Caption         =   "List OPC Servers"
      Height          =   255
      Left            =   360
      TabIndex        =   1
      ToolTipText     =   "Click here to list available OPC Servers, find KEPServerEX and click on it"
      Top             =   240
      Width           =   2655
   End
   Begin VB.CommandButton OPCServerConnect 
      Caption         =   "Connect"
      Height          =   255
      Left            =   120
      TabIndex        =   0
      ToolTipText     =   "Press the 'Connect' button once you have selected an OPC Server"
      Top             =   1680
      Width           =   855
   End
   Begin VB.Frame Frame1 
      Caption         =   "List Available OPC Servers"
      Height          =   2775
      Left            =   0
      TabIndex        =   3
      Top             =   0
      Width           =   3375
      Begin VB.TextBox OPCNodeName 
         Height          =   285
         Left            =   1080
         TabIndex        =   93
         ToolTipText     =   "Enter the name of the PC running the server here if not this PC."
         Top             =   2040
         Width           =   2055
      End
      Begin VB.CommandButton DisconnectFromServer 
         Caption         =   "Disconnect From Server"
         Enabled         =   0   'False
         Height          =   255
         Left            =   480
         TabIndex        =   6
         ToolTipText     =   "Once you are finished accessing an OPC Server you should disconnect from it allowing the server to release the resources you used"
         Top             =   2400
         Width           =   2055
      End
      Begin VB.Label lblOPCNodeName 
         Caption         =   "Node Name"
         Height          =   255
         Left            =   120
         TabIndex        =   94
         Top             =   2040
         Width           =   855
      End
   End
   Begin VB.Frame Frame2 
      Caption         =   "OPC Items"
      Height          =   4335
      Left            =   0
      TabIndex        =   27
      Top             =   2880
      Width           =   10215
      Begin VB.CommandButton OPCRemoveItems 
         Caption         =   "Remove OPC Items"
         Enabled         =   0   'False
         Height          =   255
         Left            =   6360
         TabIndex        =   92
         ToolTipText     =   "Click here to remove the current items from the OPC group"
         Top             =   120
         Width           =   1815
      End
      Begin VB.CommandButton OPCItemSyncReadButton 
         Caption         =   "Sync Read"
         Enabled         =   0   'False
         Height          =   255
         Index           =   0
         Left            =   8160
         TabIndex        =   82
         ToolTipText     =   "Click here to perform a Synchronous read of this OPC Item"
         Top             =   720
         Width           =   975
      End
      Begin VB.CheckBox OPCItemActiveState 
         Alignment       =   1  'Right Justify
         Caption         =   "Active"
         Enabled         =   0   'False
         Height          =   255
         Index           =   0
         Left            =   7200
         TabIndex        =   63
         ToolTipText     =   "Click here to change the active state of this item"
         Top             =   720
         Value           =   1  'Checked
         Width           =   855
      End
      Begin VB.CommandButton OPCItemWriteButton 
         Caption         =   "Write Value"
         Enabled         =   0   'False
         Height          =   255
         Index           =   0
         Left            =   6120
         TabIndex        =   62
         ToolTipText     =   "Click here to send the value entered in the 'Value to Write' field using a Synchronous Write"
         Top             =   720
         Width           =   975
      End
      Begin VB.TextBox OPCItemValueToWrite 
         Enabled         =   0   'False
         Height          =   285
         Index           =   0
         Left            =   4560
         TabIndex        =   51
         Text            =   "0"
         ToolTipText     =   "Enter the value to written here then click the 'Write Value' button"
         Top             =   720
         Width           =   1455
      End
      Begin VB.TextBox OPCItemQuality 
         Height          =   285
         Index           =   0
         Left            =   9240
         Locked          =   -1  'True
         TabIndex        =   40
         Top             =   720
         Width           =   855
      End
      Begin VB.TextBox OPCItemValue 
         Height          =   285
         Index           =   0
         Left            =   3000
         Locked          =   -1  'True
         TabIndex        =   29
         Top             =   720
         Width           =   1455
      End
      Begin VB.Label Label9 
         Caption         =   "Value to Write"
         Height          =   255
         Left            =   4800
         TabIndex        =   61
         Top             =   480
         Width           =   1215
      End
      Begin VB.Label Label8 
         Caption         =   "Item Quality"
         Height          =   255
         Left            =   9240
         TabIndex        =   50
         Top             =   480
         Width           =   855
      End
      Begin VB.Label Label7 
         Caption         =   "Current Value"
         Height          =   255
         Left            =   3000
         TabIndex        =   39
         Top             =   480
         Width           =   1335
      End
      Begin VB.Label Label4 
         Caption         =   "Enter OPC Item Names"
         Height          =   255
         Left            =   120
         TabIndex        =   28
         Top             =   480
         Width           =   1815
      End
   End
   Begin VB.Label Label11 
      Caption         =   "ABB Shanghai"
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   9.75

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