1.新建项目并引用TwinCAT动态链接库
2.引用类，并编写倍福控制的相关对象
1 using System;
2 using System.Collections;
3 using System.Collections.Generic;
4 using System.Linq;
5 using System.Text;
6 using TwinCAT.Ads;
7
8
9 namespace Project_V1._001_Data
10 {
11 public class Beckhoff_PLC
12 {
13
14
15 #region 基本对象定义
16 /// <summary>
17 /// 创建Ads对象
18 /// </summary>
19 public static TwinCAT.Ads.TcAdsClient _adsClient = new TcAdsClient();
20
21 /// <summary>
22 /// 定义连接PLC的AMSNetID
23 /// </summary>
24 public static string string_AmsNetID = "192.168.0.122.1.1";
25
26
27 /// <summary>
28 /// 定义连接PLC的端口号
29 /// TwinCAT2，端口号801；TwinCAT3，端口号为851
30 /// </summary>
31 //public static int iPort = 801;
32 public static int iPort = 851;
33
34
35 /// <summary>
36 /// PLC连接成功的标志
37 /// </summary>
38 public static bool bConnectToBeckhoffOK = false;
39
40
41 public static ArrayList notificationHandles = new ArrayList();
42 #endregion
43
44 #region 函数定义
45 /// <summary>
46 /// 连接到PLC
47 /// </summary>
48 public static void ConnectPLC()
49 {
50 try
51 {
52 //_adsClient.Connect(string_AmsNetID, iPort);
53 _adsClient.Connect(iPort);
54 bConnectToBeckhoffOK = true;
55
56 }
57 catch
58 {
59 bConnectToBeckhoffOK = false;
60 }
61 }
62
63 /// <summary>
64 /// 读取double类型的变量，非实时刷新
65 /// </summary>
66 /// <param name="PlcVariableName"></param>
67 /// <returns></returns>
68 public static double ReadDouble(string PlcVariableName)
69 {
70 double dResult = 0;
71 try
72 {
73 int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName);
74 dResult = (double)(_adsClient.ReadAny(iHandleTemp, typeof(double)));
75 _adsClient.DeleteVariableHandle(iHandleTemp);
76 }
77 catch { return 0; }
78 return dResult;
79 }
80
81 /// <summary>
82 /// 根据PLC变量名，写PLC变量
83 /// </summary>
84 /// <param name="PlcVariableName"></param>
85 /// <param name="dResult"></param>
86 public static void WriteVariable(string PlcVariableName, double dResult)
87 {
88 try
89 {
90 int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName);
91 _adsClient.WriteAny(iHandleTemp, dResult);
92 _adsClient.DeleteVariableHandle(iHandleTemp);
93 }
94 catch { }
95 }
96
97 /// <summary>
98 /// 根据PLC变量名，写PLC变量
99 /// </summary>
100 /// <param name="PlcVariableName"></param>
101 /// <param name="dResult"></param>
102 public static void WriteVariable(string PlcVariableName, bool bResult)
103 {
104 try
105 {
106 int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName);
107 _adsClient.WriteAny(iHandleTemp, bResult);
108 _adsClient.DeleteVariableHandle(iHandleTemp);
109 }
110 catch { }
111 }
112
113
114 #endregion
115
116 }
117 }
3.主程序中直接调用倍福控制类
using System;using System.Collections;using System.Collections.Generic;using System.Linq;using System.Text;using TwinCAT.Ads;
namespace Project_V1._001_Data{ public class Beckhoff_PLC {
#region 基本对象定义 ///
///
///
///
public static ArrayList notificationHandles = new ArrayList(); #endregion
#region 函数定义 ///
///
///
///
#endregion
}}
