formstar.pas

16 relay output channels and 16 isolated digital input channels LED indicators to show activated

unit Formstar;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Driver, Global;

type
  Tfrmstart = class(TForm)
    labSelDev: TLabel;
    lstDevice: TListBox;
    labModule: TLabel;
    lstModule: TListBox;
    cmdRun: TButton;
    labChannel: TLabel;
    lstChannel: TListBox;
    cmdExit: TButton;
    labHighAlarm: TLabel;
    labLowAlarm: TLabel;
    labLatchMode: TLabel;
    txtHighAlarm: TEdit;
    cmdLatMode: TButton;
    txtLowAlarm: TEdit;
    procedure cmdExitClick(Sender: TObject);
    procedure cmdRunClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure lstDeviceClick(Sender: TObject);
    procedure lstModuleClick(Sender: TObject);
    procedure cmdLatModeClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmstart: Tfrmstart;

implementation

uses formrun;

var
   lpDevFeatures      : DEVFEATURES;
   lpDevConfig_AI     : DEVCONFIG_AI;
   gnNumOfSubdevices  : Smallint;
   Response           : Integer;

{$R *.DFM}
procedure Tfrmstart.cmdExitClick(Sender: TObject);
begin
     if bRun then
        DRV_DeviceClose(DeviceHandle);
     close;
end;

procedure Tfrmstart.cmdRunClick(Sender: TObject);
var
   tempNum     : Integer;
   LatchMode   : Integer;
   code        : Integer;
begin
  AlarmChan := lstChannel.ItemIndex;
  ptAlarmConfig.chan := AlarmChan;
  Val(txtHighAlarm.Text, ptAlarmConfig.HiLimit, code);
  Val(txtLowAlarm.Text, ptAlarmConfig.LoLimit, code);
  { Wait for 4 second }
  ErrCde := DRV_AlarmConfig(DeviceHandle, ptAlarmConfig);
  If (ErrCde <> 0) Then
  begin
       DRV_GetErrorMessage(ErrCde, pszErrMsg);
       Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
       Exit;
  end;

  If cmdLatMode.Caption = 'Latch' Then
        LatchMode := 0
  Else
        LatchMode := 1;

  ptAlarmEnable.chan := AlarmChan;
  ptAlarmEnable.LatchMode := LatchMode;
  ptAlarmEnable.enabled := 1;         { enable alarm }
  ErrCde := DRV_AlarmEnable(DeviceHandle, ptAlarmEnable);
  If (ErrCde <> 0) Then
  begin
       DRV_GetErrorMessage(ErrCde, pszErrMsg);
       Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
       Exit;
  end;

  FormRun.frmRun.Show;
  Formrun.frmrun.tmrRead.Enabled := True;
end;

procedure Tfrmstart.FormCreate(Sender: TObject);
var
  OutEntries : Smallint;
  NumOfDevice            : Smallint;
  i, j                   : Integer;
  tempStr                : String;
  testRes                : boolean;
begin
  bRun := False;
  txtHighAlarm.Text := IntToStr(30);
  txtLowAlarm.Text  := IntToStr(10);
  { Add type of PC Laboratory Card }
  ErrCde := DRV_DeviceGetList(DeviceList[0], MaxEntries, OutEntries);
  If (ErrCde <> 0) Then
  begin
       DRV_GetErrorMessage(ErrCde, pszErrMsg);
       Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
       Exit;
  end;

  { Here MaxEntries = OutEntries }
  ErrCde := DRV_DeviceGetNumOfList(NumOfDevice);
  If (ErrCde <> 0) Then
  begin
    DRV_GetErrorMessage(ErrCde, pszErrMsg);
    Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
    Exit;
  end;

  For i := 0 To (NumOfDevice - 1) do
  begin
    tempStr := '';
    For j := 0 To MaxDevNameLen do
        tempStr := tempStr + DeviceList[i].szDeviceName[j];
    lstDevice.Items.Add(tempStr);
  end;

  { Disable module in this example }
  lstModule.Enabled := False;
  labModule.Enabled := False;

  labChannel.Enabled := False;
  lstChannel.Enabled := False;
  {lstVoltageRange.Enabled := False;}
  {labVoltageRange.Enabled := False;}
  cmdRun.Enabled := False;
end;

procedure Tfrmstart.lstDeviceClick(Sender: TObject);
var
  tempNum, i, ii         : Integer;
  nOutEntries            : Smallint;
  TestRes                : Boolean;
  TempStr                : String;
  dwDeviceNum            : Longint;
  lpAIGetConfig          : PT_AIGetConfig;
  lpDEVCONFIG_AI         : DEVCONFIG_AI;
begin
  lstModule.Items.Clear;
  lstChannel.Items.Clear;
  {lstVoltageRange.Items.Clear;}
  {lstExpChl.Clear;}

  tempNum := Pos('DEMO', lstDevice.Items[lstDevice.ItemIndex]);
  if (tempNum <> 0) then
     TestRes := True
  else
     TestRes := False;

  { Avoid to open Advantech Demo Card }
  If (TestRes) Then
  begin
    labModule.Enabled := False;
    lstModule.Enabled := False;
    labChannel.Enabled := False;
    lstChannel.Enabled := False;
    {labVoltageRange.Enabled := False;}
    {lstVoltageRange.Enabled := False;}
    {labExpChl.Enabled := False;}
    {lstExpChl.Enabled := False;}
    {labThermoCouple.Enabled := False;}
    {lstThermoCouple.Enabled := False;}
    lstChannel.Items.Add('No Use');
    cmdRun.Enabled := False;
  end;

  If (Not TestRes) Then
  begin
    { Check if there is any device attached on this COM or CAN }
    gnNumOfSubdevices := DeviceList[lstDevice.ItemIndex].nNumOfSubdevices;
    if (gnNumOfSubdevices > MaxDev) then
       gnNumOfSubdevices := MaxDev;

    dwDeviceNum := DeviceList[lstDevice.ItemIndex].dwDeviceNum;

    { COM and CAN bus }
    if (gnNumOfSubdevices <> 0) then
    begin
       ErrCde := DRV_DeviceGetSubList(dwDeviceNum, SubDeviceList[0], gnNumOfSubdevices, nOutEntries);
       If (ErrCde <> 0) Then
       begin
            DRV_GetErrorMessage(ErrCde, pszErrMsg);
            Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
            Exit;
       end;
       For i := 0 To (gnNumOfSubdevices - 1) do
       begin
           tempStr := '';
           For ii := 0 To MaxDevNameLen do
               tempStr := tempStr + SubDevicelist[i].szDeviceName[ii];
           lstModule.Items.Add(tempStr);
       end;
       lstModule.Enabled := True;
       labModule.Enabled := True;
       labChannel.Enabled := True;
       lstChannel.Enabled := True;
       {labVoltageRange.Enabled := True;}
       {lstVoltageRange.Enabled := True;}
       cmdRun.Enabled := True;
    end;

    { PCL DAS & DIO card }
    if (gnNumOfSubdevices = 0) then
    begin
         ErrCde := DRV_DeviceOpen(dwDeviceNum, DeviceHandle);
         If (ErrCde <> 0) Then
         begin
              DRV_GetErrorMessage(ErrCde, pszErrMsg);
              Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
              Exit;
         end
         else
              bRun := True;

         ptDevGetFeatures.buffer := @lpDevFeatures;
         ErrCde := DRV_DeviceGetFeatures(DeviceHandle, ptDevGetFeatures);

         { Add analog input channel item for alarm input}
         lpAIGetConfig.buffer := @lpDevConfig_AI;
         ErrCde := DRV_AIGetConfig(DeviceHandle, lpAIGetConfig);
         If (ErrCde <> 0) Then
         begin
              DRV_GetErrorMessage(ErrCde, pszErrMsg);
              Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
              DRV_DeviceClose(DeviceHandle);
              Exit;
         end;

         If (lpDevConfig_AI.ulChanConfig = 0) Then
            tempNum := lpDevFeatures.usMaxAISiglChl
         Else
             tempNum := lpDevFeatures.usMaxAIDiffChl;
         if (tempNum > 0) then
         begin
              For i := 0 To (tempNum - 1) do
              begin
                   tempStr := 'Chan#' + IntToStr(i);
                   lstChannel.Items.Add(tempStr);
              end;
              labChannel.Enabled := True;
              lstChannel.Enabled := True;
              {lstChannel.Text := lstChannel.Items[0];}
         end;

         { Since you have selected a PC-Lab Card, you can choose the channel and gain code as you want}
         cmdRun.Enabled := True;
    end;
  end;
end;

procedure Tfrmstart.lstModuleClick(Sender: TObject);
var
    tempNum, i, ii         : Integer;
    dwDeviceNum            : Longint;
    TempStr                : String;
begin
     lstChannel.Items.Clear;
     {lstVoltageRange.Items.Clear;}
     {lstExpChl.Clear;}

     { open COM device or CAN device }
     dwDeviceNum := SubDevicelist[lstModule.ItemIndex].dwDeviceNum;
     ErrCde := DRV_DeviceOpen(dwDeviceNum, DeviceHandle);
     If (ErrCde <> 0) Then
     begin
          DRV_GetErrorMessage(ErrCde, pszErrMsg);
          Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
          Exit;
     end
     Else
       bRun := True;

     ptDevGetFeatures.buffer := @lpDevFeatures;
     ErrCde := DRV_DeviceGetFeatures(DeviceHandle, ptDevGetFeatures);
     If (ErrCde <> 0) Then
     begin
          DRV_GetErrorMessage(ErrCde, pszErrMsg);
          Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
          Exit;
     end;

     ptAIGetConfig.buffer := @lpDevConfig_AI;
     ErrCde := DRV_AIGetConfig(DeviceHandle, ptAIGetConfig);
     If (ErrCde <> 0) Then
     begin
          DRV_GetErrorMessage(ErrCde, pszErrMsg);
          Response := Application.MessageBox(pszErrMsg, 'Error!!', MB_OK);
          DRV_DeviceClose(DeviceHandle);
          Exit;
     end;

     { Add analog input channel item for alarm input}
     If (lpDevConfig_AI.ulChanConfig = 0) Then
        tempNum := lpDevFeatures.usMaxAISiglChl
     Else
        tempNum := lpDevFeatures.usMaxAIDiffChl;

     For i := 0 To (tempNum - 1) do
     begin
          tempStr := 'Chan#' + IntToStr(i);
          lstChannel.Items.Add(tempStr);
     end;
     cmdRun.enabled := True;

     { WARNING : No gain code list for ADAM series}
end;

procedure Tfrmstart.cmdLatModeClick(Sender: TObject);
begin
    If cmdLatMode.Caption = 'Latch' Then
        cmdLatMode.Caption := 'Momentary'
    Else
        cmdLatMode.Caption := 'Latch';
end;

end.