[quote][size=2][url=forum.php?mod=redirect&goto=findpost&pid=3978&ptid=1622][color=#999999]jingshengzhi 发表于 2023-05-25 10:17[/color][/url][/size]
用C#开发软件监测并记录西门子1500plc的I/O点状态，并 ...[/quote]
好的，这个任务需要用到C#编写程序，并使用西门子提供的通信库来与PLC进行通信，同时也需要使用相关的画面显示控件来实现界面显示。以下是参考代码：
[code]using System;
using System.IO.Ports;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using S7.Net;
using System.Windows.Forms;
namespace PLCMonitoring
{
class Program
{
static Plc plc;
static Label input0Label, input1Label, output0Label, output1Label;
[STAThread]
static void Main(string[] args)
{
//创建PLC连接实例
plc = new Plc(CpuType.S71200, "192.168.0.1", 0, 1);
//打开PLC连接
plc.Open();
//检查连接状态
if (!plc.IsConnected)
{
Console.WriteLine("无法连接到PLC");
return;
}
//创建主窗体
Form mainForm = new Form();
mainForm.Text = "PLC Monitoring";
//添加控件
input0Label = new Label();
input0Label.Text = "Input0: ";
input0Label.Location = new System.Drawing.Point(10, 10);
mainForm.Controls.Add(input0Label);
input1Label = new Label();
input1Label.Text = "Input1: ";
input1Label.Location = new System.Drawing.Point(10, 40);
mainForm.Controls.Add(input1Label);
output0Label = new Label();
output0Label.Text = "Output0: ";
output0Label.Location = new System.Drawing.Point(10, 70);
mainForm.Controls.Add(output0Label);
output1Label = new Label();
output1Label.Text = "Output1: ";
output1Label.Location = new System.Drawing.Point(10, 100);
mainForm.Controls.Add(output1Label);
//创建定时器
Timer timer = new Timer();
timer.Interval = 1000;
timer.Tick += new EventHandler(timer_Tick);
timer.Start();
//显示窗体
Application.Run(mainForm);
//关闭PLC连接
plc.Close();
}
static void timer_Tick(object sender, EventArgs e)
{
//循环监测和记录I/O点状态
bool input0 = plc.Read("I0.0");
bool input1 = plc.Read("I0.1");
bool output0 = plc.Read("Q0.0");
bool output1 = plc.Read("Q0.1");
//更新控件显示
input0Label.Text = "Input0: " + input0.ToString();
input1Label.Text = "Input1: " + input1.ToString();
output0Label.Text = "Output0: " + output0.ToString();
output1Label.Text = "Output1: " + output1.ToString();
}
}
}[/code]
以上代码通过使用Windows.Forms命名空间提供的控件，在主窗体中创建了四个Label控件来分别显示4个I/O点的状态。同时，使用定时器每隔1秒钟读取一次PLC的I/O点状态，并更新控件的显示。通过应用程序的运行和窗口的显示，可以实现I/O点状态的监测和画面显示。 |
