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 usingSystem;2 usingSystem.Collections;3 usingSystem.Collections.Generic;4 usingSystem.Linq;5 usingSystem.Text;6 usingTwinCAT.Ads;7

8

9 namespaceProject_V1._001_Data10 {11 public classBeckhoff_PLC12 {13

14

15 #region 基本对象定义

16 ///

17 ///创建Ads对象18 ///

19 public static TwinCAT.Ads.TcAdsClient _adsClient = newTcAdsClient();20

21 ///

22 ///定义连接PLC的AMSNetID23 ///

24 public static string string_AmsNetID = "192.168.0.122.1.1";25

26

27 ///

28 ///定义连接PLC的端口号29 ///TwinCAT2，端口号801；TwinCAT3，端口号为85130 ///

31 //public static int iPort = 801;

32 public static int iPort = 851;33

34

35 ///

36 ///PLC连接成功的标志37 ///

38 public static bool bConnectToBeckhoffOK = false;39

40

41 public static ArrayList notificationHandles = newArrayList();42 #endregion

43

44 #region 函数定义

45 ///

46 ///连接到PLC47 ///

48 public static voidConnectPLC()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 ///

64 ///读取double类型的变量，非实时刷新65 ///

66 ///

67 ///

68 public static double ReadDouble(stringPlcVariableName)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 returndResult;79 }80

81 ///

82 ///根据PLC变量名，写PLC变量83 ///

84 ///

85 ///

86 public static void WriteVariable(string PlcVariableName, doubledResult)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 ///

98 ///根据PLC变量名，写PLC变量99 ///

100 ///

101 ///

102 public static void WriteVariable(string PlcVariableName, boolbResult)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        ///         /// 创建Ads对象        ///         public static TwinCAT.Ads.TcAdsClient _adsClient = new TcAdsClient();

///         /// 定义连接PLC的AMSNetID        ///         public static string string_AmsNetID = "192.168.0.122.1.1";

///         /// 定义连接PLC的端口号        /// TwinCAT2，端口号801；TwinCAT3，端口号为851        ///         //public static int iPort = 801;         public static int iPort = 851;

///         /// PLC连接成功的标志        ///         public static bool bConnectToBeckhoffOK = false;

public static ArrayList notificationHandles = new ArrayList();        #endregion

#region 函数定义        ///         /// 连接到PLC        ///         public static void ConnectPLC()        {            try            {                //_adsClient.Connect(string_AmsNetID, iPort);                _adsClient.Connect(iPort);                bConnectToBeckhoffOK = true;                           }            catch            {                bConnectToBeckhoffOK = false;            }        }

///         /// 读取double类型的变量，非实时刷新        ///         ///         ///         public static double ReadDouble(string PlcVariableName)        {            double dResult = 0;            try            {                int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName);                dResult = (double)(_adsClient.ReadAny(iHandleTemp, typeof(double)));                _adsClient.DeleteVariableHandle(iHandleTemp);            }            catch { return 0; }            return dResult;        }

///         /// 根据PLC变量名，写PLC变量        ///         ///         ///         public static void WriteVariable(string PlcVariableName, double dResult)        {            try            {                int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName);                _adsClient.WriteAny(iHandleTemp, dResult);                _adsClient.DeleteVariableHandle(iHandleTemp);            }            catch { }        }

///         /// 根据PLC变量名，写PLC变量        ///         ///         ///         public static void WriteVariable(string PlcVariableName, bool bResult)        {            try            {                int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName);                _adsClient.WriteAny(iHandleTemp, bResult);                _adsClient.DeleteVariableHandle(iHandleTemp);            }            catch { }        }

#endregion

}}