[西门子PLC] 西门子PLC实现开关灯时间，C#设计测试系统

因订阅号粉丝的要求，需要设计一个路灯时控程序，先抛砖引玉，用西门子S7-200 smart结合C#平台来演示。

首先我们需要获得CPU的时钟：

利用READ_RTC来获得，需要初始化PLC的时钟

连接PLC后，读取PC时钟，然后点击设置。

此时我们可以监控年月日时分秒

在设置开关灯时间，

C#代码如下：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Drawing.Drawing2D;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using S7.Net;

namespace S7_200Smart路灯控制

{

public partial class Form1 : Form

{

public bool lamp1;

public bool lamp2;

Plc plc;//声明plc连接对象

public string date_time;

public Form1()

{

InitializeComponent();

}

private void Open_PLC_Click(object sender, EventArgs e)

{

string Ip = txtIp.Text;//plcIp地址

plc = new Plc(CpuType.S71200, Ip, 0, 1);//创建plc实例

plc.Open();//连接plc

if (plc.IsConnected)//检查plc是否连接上

{

MessageBox.Show("与PLC连接成功！");

timer1.Enabled = true;

this.Read_set_data.PerformClick();

}

else

{

MessageBox.Show("与PLC连接失败！");

}

}

private void Close_PLC_Click(object sender, EventArgs e)

{

plc.Close();//断开PLC

}

private void timer1_Tick(object sender, EventArgs e)

{

date_time = DateTime.Now.ToString();

if(lamp1)

{

p2.Visible = true;

p1.Visible = false;

}

if (lamp2)

}

p1.Visible = true;

p2.Visible = false;

}

if (plc.IsConnected)//检查plc是否连接上

{

this.Text = "路灯控制V1.0--PLC通讯已连接" + " " + date_time + " Designed by Honeytree";

}

if (plc.IsConnected == false)

{

this.Text = "路灯控制V1.0--PLC通讯未连接" + " " + date_time + " Designed by Honeytree";

}

if (plc.IsConnected == false)

{

// MessageBox.Show("未连接PLC!", "连接提示", MessageBoxButtons.OK);

}

else

{

try

{

string y1;

string m1;

string d1;

string h1;

string min1;

string sec1;

//年

int intValue = ((byte)plc.Read("DB1.DBB0"));

string hexValue = intValue.ToString("X");

y1 = hexValue;

//月

int intValue1 = ((byte)plc.Read("DB1.DBB1"));

string hexValue1 = intValue1.ToString("X");

m1 = hexValue1;

//日

int intValue2 = ((byte)plc.Read("DB1.DBB2"));

string hexValue2 = intValue2.ToString("X");

d1 = hexValue2;

//时

int intValue5 = ((byte)plc.Read("DB1.DBB3"));

string hexValue5 = intValue5.ToString("X");

h1 = hexValue5;

byte v1 = byte.Parse(h1);

plc.Write("DB1.DBB200", v1);

//分

int intValue3 = ((byte)plc.Read("DB1.DBB4"));

string hexValue3 = intValue3.ToString("X");

min1 = hexValue3;

byte v2 = byte.Parse(min1);

plc.Write("DB1.DBB201", v2);

//秒

int intValue4 = ((byte)plc.Read("DB1.DBB5"));

string hexValue4 = intValue4.ToString("X");

sec1 = hexValue4;

PLC_date.Text = "20" + y1 + "年" + m1+"月" + d1+"日" + h1 + "时" + min1 + "分" + sec1 + "秒";

//灯控

lamp1= ((bool)plc.Read("M0.0"));

lamp2 = ((bool)plc.Read("M0.1"));

}

catch (Exception Ex)

{

MessageBox.Show("请检查输入的“地址”或“值”是否错误！" + Ex, "输入提示", MessageBoxButtons.OK);

}

}

}

private void Set_ACK_Click(object sender, EventArgs e)

{

if (plc.IsConnected == false)

{

MessageBox.Show("未连接PLC!", "连接提示", MessageBoxButtons.OK);

}

else

{

try

{

byte value = byte.Parse(start_hour.Text)；

plc.Write("DB1.DBB20", value);

byte value1 = byte.Parse(stop_hour.Text);

plc.Write("DB1.DBB22", value1);

}

catch (Exception Ex)

{

MessageBox.Show("请检查输入的“地址”或“值”是否错误！" + Ex, "输入提示", MessageBoxButtons.OK);

}

}

}

private void Read_set_data_Click(object sender, EventArgs e)

{

int hour1 = ((byte)plc.Read("DB1.DBB20"));

start_hour.Text = hour1.ToString();

int min1 = ((byte)plc.Read("DB1.DBB22"));

stop_hour.Text = min1.ToString();

}

}

}

测试效果：

西门子PLC实现开关灯时间，C#设计测试系统

http://bbs.plcjs.com/forum.php?mod=viewthread&tid=502495&fromuid=17

(出处: PLC论坛-全力打造可编程控制器专业技术论坛)

#非标自动化#

#西门子PLC#