1.例程界面

2.相關(guān)代碼

①鏈接按鈕的事件處理函數(shù)中調(diào)用鏈接控制器的接口函數(shù)ZAux_OpenEth（），與控制器進(jìn)行鏈接,鏈接成功后啟動(dòng)定時(shí)器1監(jiān)控控制器的IO狀態(tài)。

//鏈接控制器
private void LinkButton_Click(object sender, EventArgs e)
{
   zmcaux.ZAux_OpenEth(IP_comboBox.Text, out g_handle);
   if (g_handle != (IntPtr)0)
   {
       // MessageBox.Show("控制器鏈接成功!", "提示");
       timer1.Enabled = true;
       LinkButton.BackColor = Color.FromArgb(200, 255, 200);
   }
   else
   {
       MessageBox.Show("控制器鏈接失敗，請(qǐng)檢測(cè)IP地址!", "警告");
       LinkButton.BackColor = Color.FromArgb(255, 200, 200);
   }
}

②通過(guò)定時(shí)器1監(jiān)控控制器的IO狀態(tài)。

//定時(shí)器更新IO信息
private void timer1_Tick(object sender, EventArgs e)
{
   int j, k;
   int TestNum = 50;
   //快速讀取輸入口狀態(tài)接口時(shí)間測(cè)試
   byte[] InState = new byte[4];
   DateTime beforeDT = System.DateTime.Now;
   for (int count = 0; count < TestNum; count++)
   {
       zmcaux.ZAux_GetModbusIn(g_handle, 0, 32, InState);
       for (int i = 0; i < 32; i++)
       {
           j = i / 8;
           k = i % 8; 
           if (((InState[j] >> k) & 1) == 1)
           {
               InStatus[i].BackColor = Color.FromArgb(200, 255, 200); 
           }
           else
           {
               InStatus[i].BackColor = Color.FromArgb(255, 200, 200);
           }
       }
   }
   DateTime afterDT = System.DateTime.Now;
   //計(jì)算beforeDT與afterDT的時(shí)間差
   TimeSpan ts = afterDT - beforeDT;
   InMoitoring.Text = "輸入口監(jiān)控_刷新時(shí)間:  " + (ts.TotalMilliseconds * 1000 / TestNum).ToString() + " us    ";
   //快速讀取輸出口狀態(tài)接口時(shí)間測(cè)試
   byte[] OutState = new byte[4];
   DateTime beforeDTOP = System.DateTime.Now;
   for (int count = 0; count < TestNum; count++)
   { 
       zmcaux.ZAux_GetModbusOut(g_handle, 0, 32, OutState);
       for (int i = 0; i < 32; i++)
       {
           j = i / 8;
           k = i % 8;
           if (((OutState[j] >> k) & 1) == 1)
           {
               OutStatus[i].BackColor = Color.FromArgb(200, 255, 200);
           }
           else
           {
               OutStatus[i].BackColor = Color.FromArgb(255, 200, 200);
           }
       }
   }
   DateTime afterDTOP = System.DateTime.Now;
   //計(jì)算beforeDTOP與afterDTOP的時(shí)間差
   ts = afterDTOP - beforeDTOP;
   OutMoitoring.Text = "輸出口監(jiān)控_刷新時(shí)間:  " + (ts.TotalMilliseconds * 1000 / TestNum).ToString() + " us    ";
}

③多個(gè)輸入口狀態(tài)讀取速度測(cè)試函數(shù)。

//多個(gè)輸入口狀態(tài)讀取交互速度測(cè)試
private void ReadInTest_Click(object sender, EventArgs e)
{
   int j, k;
   int testNum = Convert.ToInt32(TestNum.Text.ToString());
   int readInNum = Convert.ToInt32(ReadInNum.Text.ToString());
   //快速讀取輸入口狀態(tài)接口時(shí)間測(cè)試
   byte[] InState = new byte[4];
   DateTime beforeDT = System.DateTime.Now;
   for (int count = 0; count < testNum; count++)
   {
       zmcaux.ZAux_GetModbusIn(g_handle, 0, readInNum, InState);
       if (count % 100 == 0)
       {
           for (int i = 0; i < 32; i++)
           {
               j = i / 8;
               k = i % 8;
               if (((InState[j] >> k) & 1) == 1)
               {
                   InStatus[i].BackColor = Color.FromArgb(200, 255, 200);
               }
               else
               {
                   InStatus[i].BackColor = Color.FromArgb(255, 200, 200);
               }
           }
       }
   }
   DateTime afterDT = System.DateTime.Now;
   //計(jì)算beforeDT與afterDT的時(shí)間差
   TimeSpan ts = afterDT - beforeDT;
   //總耗時(shí) ms
   ReadInTotTime.Text = ts.TotalMilliseconds.ToString("0.00");
   //平均耗時(shí) us
   ReadInTime.Text = (ts.TotalMilliseconds * 1000 / testNum).ToString("0.00");
}

④多個(gè)輸出口狀態(tài)讀取速度測(cè)試函數(shù)。

//多個(gè)輸出口狀態(tài)讀取交互速度測(cè)試
private void ReadOutTest_Click(object sender, EventArgs e)
{
   int j, k;
   int testNum = Convert.ToInt32(TestNum.Text.ToString());
   int readOutNum = Convert.ToInt32(ReadOutNum.Text.ToString());
   //快速讀取輸入口狀態(tài)接口時(shí)間測(cè)試
   byte[] OutState = new byte[4];
   DateTime beforeDT = System.DateTime.Now;
   for (int count = 0; count < testNum; count++)
   {
       zmcaux.ZAux_GetModbusOut(g_handle, 0, readOutNum, OutState); 
       if (count % 100 == 0)
       {
           for (int i = 0; i < 32; i++)
           {
               j = i / 8;
               k = i % 8;
               if (((OutState[j] >> k) & 1) == 1)
               {
                   OutStatus[i].BackColor = Color.FromArgb(200, 255, 200);
               }
               else
               {
                   OutStatus[i].BackColor = Color.FromArgb(255, 200, 200);
               }
           }
       }
   }
   DateTime afterDT = System.DateTime.Now;
   //計(jì)算beforeDT與afterDT的時(shí)間差
   TimeSpan ts = afterDT - beforeDT;
   //總耗時(shí) ms
   ReadOutTolTime.Text = ts.TotalMilliseconds.ToString("0.00");
   //平均耗時(shí) us
   ReadOutTime.Text = (ts.TotalMilliseconds * 1000 / testNum).ToString("0.00");
}

⑤多個(gè)輸出口狀態(tài)設(shè)置速度測(cè)試函數(shù)。

//多個(gè)輸出口狀態(tài)設(shè)置交互速度測(cè)試
private void WriteOutTest_Click(object sender, EventArgs e)
{
   int testNum = Convert.ToInt32(TestNum.Text.ToString());
   int writeOutNum = Convert.ToInt32(WriteOutNum.Text.ToString());
   //快速讀取輸入口狀態(tài)接口時(shí)間測(cè)試
   byte[] OutState = new byte[4];
   DateTime beforeDT = System.DateTime.Now;
   for (int count = 0; count < testNum; count++)
   {
       zmcaux.ZAux_GetModbusOut(g_handle, 0, writeOutNum, OutState);
   }
   DateTime afterDT = System.DateTime.Now;
   //計(jì)算beforeDT與afterDT的時(shí)間差
   TimeSpan ts = afterDT - beforeDT;
   //總耗時(shí) ms
   WriteOutTolTime.Text = ts.TotalMilliseconds.ToString("0.00");
   //平均耗時(shí) us
   WriteOutTime.Text = (ts.TotalMilliseconds * 1000 / testNum).ToString("0.00");
}

3.多個(gè)IO狀態(tài)與上位機(jī)交互速度測(cè)試結(jié)果

（1）32個(gè)輸入輸出口讀寫(xiě)1000次，交互速度測(cè)試結(jié)果。

（2）32個(gè)輸入輸出口讀寫(xiě)1W次，交互速度測(cè)試結(jié)果。

（3）32個(gè)輸入輸出口讀寫(xiě)10W次，交互速度測(cè)試結(jié)果。

四、分析與結(jié)論

以上分別是對(duì)32個(gè)輸入口的讀速度、32個(gè)輸出口的讀速度以及32個(gè)輸出口的寫(xiě)速度進(jìn)行測(cè)試，從上面的運(yùn)行效果圖的數(shù)據(jù)顯示來(lái)看，無(wú)論是輸入口還是輸出口，它們的交互速度都保持在200us左右。當(dāng)測(cè)試次數(shù)從1000次增加到1W次，甚至10W次時(shí)，交互速度依舊保持在200us左右。測(cè)試效果十分穩(wěn)定。測(cè)試數(shù)據(jù)如下表所示：

本次，正運(yùn)動(dòng)技術(shù)簡(jiǎn)單易用的以太網(wǎng)IO控制卡：C#讀寫(xiě)測(cè)試，就分享到這里。

更多精彩內(nèi)容請(qǐng)關(guān)注“正運(yùn)動(dòng)小助手”公眾號(hào)，需要相關(guān)開(kāi)發(fā)環(huán)境與例程代碼，請(qǐng)咨詢正運(yùn)動(dòng)技術(shù)銷售工程師。

本文由正運(yùn)動(dòng)技術(shù)原創(chuàng)，歡迎大家轉(zhuǎn)載，共同學(xué)習(xí)，一起提高中國(guó)智能制造水平。文章版權(quán)歸正運(yùn)動(dòng)技術(shù)所有，如有轉(zhuǎn)載請(qǐng)注明文章來(lái)源。

審核編輯黃宇