C#和倍福PLC之间的通讯控制
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 /// <summary> /// 创建Ads对象 /// </summary> public static TwinCAT.Ads.TcAdsClient _adsClient = new TcAdsClient();
/// <summary> /// 定义连接PLC的AMSNetID /// </summary> public static string string_AmsNetID = "192.168.0.122.1.1";
/// <summary> /// 定义连接PLC的端口号 /// TwinCAT2，端口号801；TwinCAT3，端口号为851 /// </summary> //public static int iPort = 801; public static int iPort = 851;
/// <summary> /// PLC连接成功的标志 /// </summary> public static bool bConnectToBeckhoffOK = false;
public static ArrayList notificationHandles = new ArrayList(); #endregion
#region 函数定义 /// <summary> /// 连接到PLC /// </summary> public static void ConnectPLC() { try { //_adsClient.Connect(string_AmsNetID, iPort); _adsClient.Connect(iPort); bConnectToBeckhoffOK = true; } catch { bConnectToBeckhoffOK = false; } }
/// <summary> /// 读取double类型的变量，非实时刷新 /// </summary> /// <param name="PlcVariableName"></param> /// <returns></returns> 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; }
/// <summary> /// 根据PLC变量名，写PLC变量 /// </summary> /// <param name="PlcVariableName"></param> /// <param name="dResult"></param> public static void WriteVariable(string PlcVariableName, double dResult) { try { int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName); _adsClient.WriteAny(iHandleTemp, dResult); _adsClient.DeleteVariableHandle(iHandleTemp); } catch { } }
/// <summary> /// 根据PLC变量名，写PLC变量 /// </summary> /// <param name="PlcVariableName"></param> /// <param name="dResult"></param> public static void WriteVariable(string PlcVariableName, bool bResult) { try { int iHandleTemp = _adsClient.CreateVariableHandle(PlcVariableName); _adsClient.WriteAny(iHandleTemp, bResult); _adsClient.DeleteVariableHandle(iHandleTemp); } catch { } }
#endregion
}}
