サンプルプログラム > アナログ入力 > AiInputVolt >

C#¶

開発環境の設定¶

Ydx.cs をプロジェクトフォルダにコピーします。
Ydx.cs をプロジェクトに追加します。
ソースファイルにusing ディレクティブを使ってYdxCsを宣言します。

using YdxCs;

コントロール¶

変数¶

private int id;

実行結果の表示¶

private void ResultShow(string title, int resultCode)
{
    string resultString;
    Ydx.CnvResultToString(resultCode, out resultString);
    switch (resultCode)
    {
        case 0:
        case Ydx.YDX_RESULT_AI_EXCEED_DATA_NUM:
        case Ydx.YDX_RESULT_AI_EXCEED_BUF_SIZ:
            MessageBox.Show(resultString, title, MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
            break;
        default:
            MessageBox.Show(resultString, title, MessageBoxButtons.OK, MessageBoxIcon.Hand);
            break;
    }
}

フォームロード¶

private void Form1_Load(object sender, EventArgs e)
{
    // ユニット識別スイッチ
    unitSwitchComboBox.ResetText();
    unitSwitchComboBox.Items.AddRange(new string[] { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" });
    unitSwitchComboBox.SelectedIndex = 0;

    // 型名
    modelNameComboBox.ResetText();
    modelNameComboBox.Items.AddRange(new string[] { "AIO-64/4/1B-USC", "AIO-60/4/1B-USC" });
    modelNameComboBox.SelectedIndex = 0;

    // レンジ
    rangeTypeComboBox.ResetText();
    rangeTypeComboBox.Items.AddRange(new string[] { "-10 ～ +10V", "-5 ～ +5V" });
}

オープン¶

private void openButton_Click(object sender, EventArgs e)
{
    int result = Ydx.Open(unitSwitchComboBox.SelectedIndex, modelNameComboBox.Text, 0, out id);
    if (result != 0)
        ResultShow("YdxOpen", result);
    else
    {
        unitSwitchComboBox.Enabled = false;
        modelNameComboBox.Enabled = false;
        rangeTypeComboBox.SelectedIndexChanged -= new EventHandler(rangeTypeComboBox_SelectedIndexChanged);
        rangeTypeComboBox.SelectedIndex = 0;
        rangeTypeComboBox.SelectedIndexChanged += new EventHandler(rangeTypeComboBox_SelectedIndexChanged);
        ResultShow("オープン", result);
    }
}

レンジ切り替え¶

private void rangeTypeComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    int result = Ydx.AiSetRange(id, rangeTypeComboBox.SelectedIndex);
    if (result != 0)
        ResultShow("YdxAiSetRange", result);
}

アナログ入力¶

private void inputButton_Click(object sender, EventArgs e)
{
    dataTextBox.ResetText();
    Application.DoEvents();

    const int CHANNEL_NUM = 6;
    float[] data = new float[CHANNEL_NUM];
    int result = Ydx.AiInputVolt(id, 0, CHANNEL_NUM, data);
    if (result != 0)
    {
        ResultShow("YdxAiInputVolt", result);
        return;
    }

    string txt = "";
    for (int channel = 0; channel < CHANNEL_NUM; channel++)
    {
        txt += "CH" + channel.ToString() + " : " + data[channel].ToString(" 0.000;-0.000").PadLeft(7) + "V" + Environment.NewLine;
    }

    dataTextBox.Text = txt;
}

クローズ¶

private void closeButton_Click(object sender, EventArgs e)
{
   unitSwitchComboBox.Enabled = true;
    modelNameComboBox.Enabled = true;
    int result = Ydx.Close(id);
    if (result != 0)
        ResultShow("YdxClose", result);
    else
        ResultShow("クローズ", result);
}

フォームクローズ¶

private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
    int result = Ydx.Close(id);
    if ((result != 0) && (result != Ydx.YDX_RESULT_NOT_OPEN))
    {
        ResultShow("YdxClose", result);
    }
}