上位机程序控制PLC模拟量通道输出周期性正弦波信号，并采集所造成改变的模拟量输入信号，并绘制数据变化曲线。
界面如图：
最后测试效果如图：
代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using ZedGraph; namespace ProfessionalTest
{
public partial class FrMain : Form
{
#region 构造函数
int tickStart = 0;
int tickStart2 = 0;
int zQ1 = 0;
int zQ2 = 0;
int fZ1 = 0;
int fZ2 = 0;
int pY1 = 0;
int pY2 = 0;
public FrMain()
{
InitializeComponent();
this.ControlBox = false;
}
#endregion
/// <summary>
/// 窗体加载对两个表进行初始化
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FrMain_Load(object sender, EventArgs e)
{
//无需油源流量压力设置，油源手动控制
//OPC.OpcServer server = OPC.OpcServer.GetServer(); ///一个PC ACCESS 即为一个OPC server
//server["油源"]["专业台当前流量"] = (float)50;
//server["油源"]["专业台当前压力"] = (float)10;
#region 负载模拟1
//获取引用
GraphPane myPane = zedGraphControl1.GraphPane;
//设置标题
myPane.Title.Text = "负载模拟1";
//设置X轴说明文字
myPane.XAxis.Title.Text = "时间";
//设置Y轴说明文字
myPane.YAxis.Title.Text = "给定压力/实测压力"; //设置1200个点,假设每50毫秒更新一次,刚好检测1分钟,一旦构造后将不能更改这个值
RollingPointPairList list = new RollingPointPairList(1200);
RollingPointPairList list2 = new RollingPointPairList(1200);
//开始，增加的线是没有数据点的(也就是list为空)
//增加一条名称:Voltage，颜色Color.Bule，无符号，无数据的空线条
LineItem curve = myPane.AddCurve("给定压力", list, Color.Blue, SymbolType.None);
LineItem curve2 = myPane.AddCurve("实际压力", list2, Color.Red, SymbolType.None);
timerDraw.Interval = 1000; //设置timer控件的间隔为500毫秒
timerDraw.Enabled = true; //timer可用
timerDraw.Stop(); //开始 myPane.XAxis.Scale.Min = 0; //X轴最小值0
myPane.XAxis.Scale.Max = 30; //X轴最大30
myPane.XAxis.Scale.MinorStep = 1;//X轴小步长1,也就是小间隔
myPane.XAxis.Scale.MajorStep = 5;//X轴大步长为5，也就是显示文字的大间隔 //改变轴的刻度
zedGraphControl1.AxisChange(); //保存开始时间
//tickStart = Environment.TickCount;
#endregion
#region 负载模拟2
//获取引用
GraphPane myPane1 = zedGraphControl2.GraphPane;
//设置标题
myPane1.Title.Text = "负载模拟2";
//设置X轴说明文字
myPane1.XAxis.Title.Text = "时间";
//设置Y轴说明文字
myPane1.YAxis.Title.Text = "给定压力/实测压力"; //设置1200个点,假设每50毫秒更新一次,刚好检测1分钟,一旦构造后将不能更改这个值
RollingPointPairList list3 = new RollingPointPairList(1200);
RollingPointPairList list4 = new RollingPointPairList(1200);
//开始，增加的线是没有数据点的(也就是list为空)
//增加一条名称:Voltage，颜色Color.Bule，无符号，无数据的空线条
LineItem curve3 = myPane1.AddCurve("给定压力", list3, Color.Blue, SymbolType.None);
LineItem curve4 = myPane1.AddCurve("实际压力", list4, Color.Red, SymbolType.None); timer1Draw.Interval = 1000; //设置timer控件的间隔为500毫秒
timer1Draw.Enabled = true; //timer可用
timer1Draw.Stop(); //暂不启动 myPane1.XAxis.Scale.Min = 0; //X轴最小值0
myPane1.XAxis.Scale.Max = 30; //X轴最大30
myPane1.XAxis.Scale.MinorStep = 1;//X轴小步长1,也就是小间隔
myPane1.XAxis.Scale.MajorStep = 5;//X轴大步长为5，也就是显示文字的大间隔 //改变轴的刻度
zedGraphControl2.AxisChange(); //保存开始时间
//tickStart2 = Environment.TickCount;
#endregion
}
/// <summary>
/// 负载1模拟开始
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
try
{
zQ1 = int.Parse(textBox1.Text);
fZ1 = int.Parse(textBox2.Text);
pY1 = int.Parse(textBox5.Text);
if (zQ1<=10)
{
MessageBox.Show("周期过小，请将周期设为10秒以上") ;
return;
}
if (fZ1<=5)
{
MessageBox.Show("幅值过小，请将幅值设为5MPa以上");
return;
}
else if (fZ1>=15)
{
MessageBox.Show("幅值过大，请将幅值设为15MPa以下");
return;
}
if (pY1-fZ1 <0)
{
MessageBox.Show("压力过小，请将压力设为0MPa以上");
return;
}
else if (fZ1 +pY1> 31.5)
{
MessageBox.Show("压力过大，请将压力设为15MPa以下");
return;
}
button1.Enabled = false;
timerDraw.Start();
//保存开始时间
tickStart = Environment.TickCount;
#region 清空原有图表
//确保CurveList不为空
if (zedGraphControl1.GraphPane.CurveList.Count <= 0)
{
return;
} //取Graph第一个曲线，也就是第一步:在GraphPane.CurveList集合中查找CurveItem
LineItem curve = zedGraphControl1.GraphPane.CurveList[0] as LineItem;
LineItem curve2 = zedGraphControl1.GraphPane.CurveList[1] as LineItem;
if (curve == null | curve2 == null)
{
return;
}
//第二步:在CurveItem中访问PointPairList(或者其它的IPointList)，根据自己的需要增加新数据或修改已存在的数据
IPointListEdit list = curve.Points as IPointListEdit;
IPointListEdit list2 = curve2.Points as IPointListEdit;
list.Clear();
list2.Clear();
//第三步:调用Form.Invalidate()方法更新图表
zedGraphControl1.Invalidate();
#endregion
}
catch (Exception)
{
MessageBox.Show("请输入正确数值");
}
}
/// <summary>
/// 负载2模拟开始
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
try
{
zQ2 = int.Parse(textBox3.Text);
fZ2 = int.Parse(textBox4.Text);
pY2 = int.Parse(textBox6.Text);
if (zQ2 <= 10)
{
MessageBox.Show("周期过小，请将周期设为10秒以上");
return;
}
if (fZ2 <= 5)
{
MessageBox.Show("幅值过小，请将幅值设为5MPa以上");
return;
}
else if (fZ2 >= 15)
{
MessageBox.Show("幅值过大，请将幅值设为15MPa以下");
return;
}
if (pY2 - fZ2 < 0)
{
MessageBox.Show("压力过小，请将压力设为0MPa以上");
return;
}
else if (fZ2 + pY2 > 31.5)
{
MessageBox.Show("压力过大，请将压力设为15MPa以下");
return;
}
button2.Enabled = false;
timer1Draw.Start();
//保存开始时间
tickStart2 = Environment.TickCount;
#region 清空原有图表
//确保CurveList不为空
if (zedGraphControl2.GraphPane.CurveList.Count <= 0)
{
return;
} //取Graph第一个曲线，也就是第一步:在GraphPane.CurveList集合中查找CurveItem
LineItem curve3 = zedGraphControl2.GraphPane.CurveList[0] as LineItem;
LineItem curve4 = zedGraphControl2.GraphPane.CurveList[1] as LineItem;
if (curve3 == null | curve4 == null)
{
return;
}
//第二步:在CurveItem中访问PointPairList(或者其它的IPointList)，根据自己的需要增加新数据或修改已存在的数据
IPointListEdit list3 = curve3.Points as IPointListEdit;
IPointListEdit list4 = curve4.Points as IPointListEdit;
if (list3 == null | list4 == null)
{
return;
}
list3.Clear();
list4.Clear();
//第三步:调用Form.Invalidate()方法更新图表
zedGraphControl2.Invalidate();
#endregion }
catch (Exception)
{
MessageBox.Show("请输入正确数值");
}
}
/// <summary>
/// 负载1模拟停止
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button3_Click(object sender, EventArgs e)
{
timerDraw.Enabled = false;
timerDraw.Stop();
button1.Enabled = true;
OPC.OpcServer server = OPC.OpcServer.GetServer();
server["专业试验台"]["比例溢流阀4_1模拟缓存"] = (float)0;//写入压力0
}
/// <summary>
/// 负载2模拟停止
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button4_Click(object sender, EventArgs e)
{
timer1Draw.Enabled = false;
timer1Draw.Stop();
button2.Enabled = true;
OPC.OpcServer server = OPC.OpcServer.GetServer();
server["专业试验台"]["比例溢流阀4_2模拟缓存"] = (float)0;//写入压力0
}
/// <summary>
/// 负载模拟1表格定时更新
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timerDraw_Tick(object sender, EventArgs e)
{
//确保CurveList不为空
if (zedGraphControl1.GraphPane.CurveList.Count <= 0)
{
return;
} //取Graph第一个曲线，也就是第一步:在GraphPane.CurveList集合中查找CurveItem
LineItem curve = zedGraphControl1.GraphPane.CurveList[0] as LineItem;
LineItem curve2 = zedGraphControl1.GraphPane.CurveList[1] as LineItem;
if (curve == null | curve2 == null)
{
return;
}
//第二步:在CurveItem中访问PointPairList(或者其它的IPointList)，根据自己的需要增加新数据或修改已存在的数据
IPointListEdit list = curve.Points as IPointListEdit;
IPointListEdit list2 = curve2.Points as IPointListEdit;
if (list == null | list2 == null)
{
return;
}
// 时间用秒表示
double time = (Environment.TickCount - tickStart) / 1000.0;
// 周期为zQ1,幅值为fZ1
OPC.OpcServer server = OPC.OpcServer.GetServer();
float gDYL = (float)(fZ1 * Math.Sin(2.0 * Math.PI * time / zQ1))+pY1;//给定压力值
float sJYL = server["专业试验台"]["负载模拟压力缓存1_1"];//实际读取压力值
server["专业试验台"]["比例溢流阀4_1模拟缓存"] = gDYL;//将周期值写入PLC
list.Add(time, (double)gDYL);
list2.Add(time, (double)sJYL);
Console.WriteLine(time.ToString());
Scale xScale = zedGraphControl1.GraphPane.XAxis.Scale;
if (time > xScale.Max - xScale.MajorStep)
{
xScale.Max = time + xScale.MajorStep;
xScale.Min = xScale.Max - 30.0;
} //第三步:调用ZedGraphControl.AxisChange()方法更新X和Y轴的范围
zedGraphControl1.AxisChange(); //第四步:调用Form.Invalidate()方法更新图表
zedGraphControl1.Invalidate();
}
/// <summary>
/// 负载模拟2表格定时更新
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timer1Draw_Tick(object sender, EventArgs e)
{
//确保CurveList不为空
if (zedGraphControl2.GraphPane.CurveList.Count <= 0)
{
return;
} //取Graph第一个曲线，也就是第一步:在GraphPane.CurveList集合中查找CurveItem
LineItem curve3 = zedGraphControl2.GraphPane.CurveList[0] as LineItem;
LineItem curve4 = zedGraphControl2.GraphPane.CurveList[1] as LineItem;
if (curve3 == null | curve4 == null)
{
return;
}
//第二步:在CurveItem中访问PointPairList(或者其它的IPointList)，根据自己的需要增加新数据或修改已存在的数据
IPointListEdit list3 = curve3.Points as IPointListEdit;
IPointListEdit list4 = curve4.Points as IPointListEdit;
if (list3 == null | list4 == null)
{
return;
}
// 时间用秒表示
double time = (Environment.TickCount - tickStart2) / 1000.0;
// 周期为zQ2,幅值为fZ2
OPC.OpcServer server = OPC.OpcServer.GetServer();
float gDYL = (float)(fZ2 * Math.Sin(2.0 * Math.PI * time / zQ2))+pY2;//给定压力值
float sJYL = server["专业试验台"]["负载模拟压力缓存1_2"];//实际读取压力值
server["专业试验台"]["比例溢流阀4_2模拟缓存"] = gDYL;//将周期值写入PLC
list3.Add(time, gDYL);
list4.Add(time, sJYL);
Console.WriteLine(time.ToString());
Scale xScale = zedGraphControl2.GraphPane.XAxis.Scale;
if (time > xScale.Max - xScale.MajorStep)
{
xScale.Max = time + xScale.MajorStep;
xScale.Min = xScale.Max - 30.0;
} //第三步:调用ZedGraphControl.AxisChange()方法更新X和Y轴的范围
zedGraphControl2.AxisChange(); //第四步:调用Form.Invalidate()方法更新图表
zedGraphControl2.Invalidate();
}
/// <summary>
/// 关闭窗体
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button5_Click(object sender, EventArgs e)
{
OPC.OpcServer server = OPC.OpcServer.GetServer();
server["专业试验台"]["比例溢流阀4_1模拟缓存"] = (float)0;//写入压力0
server["专业试验台"]["比例溢流阀4_2模拟缓存"] = (float)0;//写入压力0
this.Close();
}
}
}