diff --git a/Modbus_communication/Modbus_TCP/Modbus_TCP_log.txt b/Modbus_communication/Modbus_TCP/Modbus_TCP_log.txt index 35b98d4..3b814b1 100644 --- a/Modbus_communication/Modbus_TCP/Modbus_TCP_log.txt +++ b/Modbus_communication/Modbus_TCP/Modbus_TCP_log.txt @@ -64,3 +64,87 @@ 2020-9-8 14:55:47 Recv:00 00 00 00 00 FD 09 01 FB 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 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10:8:59 Recv:00 00 00 00 00 04 01 01 01 00 +2020-9-9 10:9:49 Send:00 00 00 00 00 06 01 01 00 00 00 01 +2020-9-9 10:9:49 Recv:00 00 00 00 00 04 01 01 01 00 +2020-9-9 10:11:35 Send:00 00 00 00 00 06 01 01 00 00 00 01 +2020-9-9 10:11:35 Recv:00 00 00 00 00 04 01 01 01 00 +2020-9-9 10:11:43 Send:00 00 00 00 00 06 01 01 00 00 07 D0 +2020-9-9 10:11:43 Recv:00 00 00 00 00 FD 01 01 FA 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 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14:31:17 Recv:00 00 00 00 00 06 01 0F 00 00 00 01 +2020-9-9 14:31:22 Send:00 00 00 00 00 06 01 01 00 00 00 01 +2020-9-9 14:31:29 Send:00 00 00 00 00 06 01 01 00 00 00 01 diff --git a/Modbus_communication/Modbus_TCP/TCP_client.cpp b/Modbus_communication/Modbus_TCP/TCP_client.cpp index 29861f1..00cc994 100644 --- a/Modbus_communication/Modbus_TCP/TCP_client.cpp +++ b/Modbus_communication/Modbus_TCP/TCP_client.cpp @@ -76,7 +76,7 @@ void Input_IP(string& IP, unsigned int *Port_number) cout << "请重新输入从站端口号："; cin >> *Port_number; i = 0; - } while (*Port_number == 0 || *Port_number > 65535); //端口不能为0 ，端口号范围0---65535 + } while (*Port_number == 0 || *Port_number > 65535); //端口不能为0 ，端口号范围1---65535 } @@ -102,42 +102,52 @@ SOCKET Init_client(string IP, unsigned int Port_number) } cout << "连接TCP从站成功" << endl; TIMEVAL timeout; - timeout.tv_sec = 20000; //ms + timeout.tv_sec = 200; //ms timeout.tv_usec = 0; //us setsockopt(ClientSocket, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval));//设置接收超时时间 return ClientSocket; } /********************************************************************************************* -* 功能    ： 清除接收缓冲区中的数据 -* 描述   ： 每一次发送请求前清空缓存区数据 +* 功能    ： 清除接收缓冲区中的数据和异常连接状态检测 +* 描述   ： 每一次发送请求前清空缓存区数据，检测当前套接字连接状态 * 输入 ： ClientSocket 客户端套接字 -* 输出 ： 无 +* 输出 ： true 连接正常 false 连接异常 *********************************************************************************************/ -void Clear_recv_buf(SOCKET clientSocket) +bool Clear_recv_buf(SOCKET clientSocket) { - struct timeval tmOut; - tmOut.tv_sec = 0; - tmOut.tv_usec = 0; - fd_set fds; - int nRet; - char tmp[2]; + TIMEVAL timeout; + timeout.tv_sec = 0; + timeout.tv_usec = 0; + fd_set reads; + char tmp[100]; memset(tmp, 0, sizeof(tmp)); while (1) { - FD_ZERO(&fds); - FD_SET(clientSocket, &fds); - nRet = select(FD_SETSIZE, &fds, NULL, NULL, &tmOut); - if (nRet == 0) - break; - recv(clientSocket, tmp, 1, 0); + FD_ZERO(&reads); + FD_SET(clientSocket, &reads); + + int len = recv(clientSocket, tmp, 50, 0); + int a = select(0, &reads, 0, 0, &timeout); + if ( a == 1 && len == 0) + return false; + if ( a == 1&& len == (-1)) + return false; + if ( a == 0 && len == (-1)) + return true; } } +/********************************************************************************************* +* 功能    ： 打印读取从站的线圈状态 +* 描述   ： 对响应报文中的数据进行解析和显示 +* 输入 ： Response_Message 响应报文 Request_Message 请求报文 +* 输出 ： 无 +*********************************************************************************************/ void Printf_Coil_date(UINT8 *Response_Message, UINT8 *Request_Message) { printf("从站设备ID %02X 功能码为 %02X\n", Response_Message[6], Response_Message[7]); - unsigned int temp1 = ((Request_Message[8] << 8) | Request_Message[9])+1; + unsigned int temp1 = ((Request_Message[8] << 8) | Request_Message[9]); unsigned int Number = ((Request_Message[10] << 8) | Request_Message[11]); printf("线圈起始地址为%d \n",temp1); unsigned int temp = temp1; @@ -146,11 +156,17 @@ void Printf_Coil_date(UINT8 *Response_Message, UINT8 *Request_Message) unsigned int temp2 = temp + 7; if (temp2 > temp1 + Number - 1) temp2 = temp1 + Number - 1; - printf("线圈第%d --- %d的状态为：%02X \n", temp2, temp, Response_Message[9+i]); + printf("线圈%d --- %d的状态为：%02X \n", temp2, temp, Response_Message[9+i]); temp = temp + 8; } } +/********************************************************************************************* +* 功能    ： 打印读取从站的寄存器状态 +* 描述   ： 对响应报文中的数据进行解析和显示 +* 输入 ： Response_Message 响应报文 Request_Message 请求报文 +* 输出 ： 无 +*********************************************************************************************/ void Printf_Register_date(UINT8 *Response_Message, UINT8 *Request_Message) { printf("从站设备ID %02X 功能码为 %02X\n", Response_Message[6], Response_Message[7]); @@ -161,25 +177,34 @@ void Printf_Register_date(UINT8 *Response_Message, UINT8 *Request_Message) { printf("寄存器第%d的值为：%02X %02X \n", temp1++, Response_Message[9 + i], Response_Message[10+i]); } - } + +/********************************************************************************************* +* 功能    ： 打印读取异常响应报文信息 +* 描述   ： 对响应报文中的数据进行解析和显示 +* 输入 ： Response_Message 响应报文 +* 输出 ： 无 +*********************************************************************************************/ void Printf_Anomaly_date(UINT8 *Response_Message) { UINT8 a = Response_Message[8]; printf("从站设备ID %02X 功能码为 %02X\n", Response_Message[6], Response_Message[7]); switch (a) { - case 0x01: printf("%02X : 从站设备不支持此功能码",a); break; - case 0x02: printf("%02X : 指定的数据地址在从站设备中不存在",a); break; - case 0x03: printf("%02X : 指定的数据超过范围或者不允许使用",a); break; - case 0x04: printf("%02X : 从站设备处理响应的过程中，出现未知错误等",a); break; - default: printf("Unkown Other Error!!!!!"); + case 0x01: printf("%02X : 从站设备不支持此功能码\n",a); break; + case 0x02: printf("%02X : 指定的数据地址在从站设备中不存在\n",a); break; + case 0x03: printf("%02X : 指定的数据超过范围或者不允许使用\n",a); break; + case 0x04: printf("%02X : 从站设备处理响应的过程中，出现未知错误等\n",a); break; + default: printf("Unkown Other Error!!!!!\n"); } } - - - +/********************************************************************************************* +* 功能    ： 判断响应报文是否可以正常解析 +* 描述   ： 通过长度和异常码等判定该响应报文是否可以解析 +* 输入 ： Response_Message 响应报文 Request_Message请求报文 Response_Message_len 响应报文长度 +* 输出 ： true可以正常解析 false 无法解析 +*********************************************************************************************/ bool Analysis_Response_Message(UINT8 *Response_Message, UINT8 *Request_Message, int Response_Message_len) { if (Response_Message[7] == Request_Message[7] + 0x80 && Response_Message_len == 9)//先处理异常响应 @@ -217,8 +242,8 @@ bool Tcp_client(string IP, unsigned int Port_number) cout << "初始化主站失败" << endl; return false; } - UINT8 Request_Message[260]; - UINT8 Response_Message[260]; + UINT8 Request_Message[300]; + UINT8 Response_Message[300]; while (true) { @@ -234,9 +259,23 @@ bool Tcp_client(string IP, unsigned int Port_number) } printf("\n"); Log_Note(Request_Message, 1, Request_Message_len); - Clear_recv_buf(ClientSocket); - send(ClientSocket, (char*)Request_Message, Request_Message_len, 0); - memset(Response_Message, 0, 260); + + if (Clear_recv_buf(ClientSocket) == false) + { + printf("连接异常，请检查连接状态。\n"); + printf("**************************** Press Enter To Close ****************************\n"); + getchar(); + break; + } + int test = send(ClientSocket, (char*)Request_Message, Request_Message_len, 0); + if (test == (-1)) + { + printf("连接异常，请检查连接状态。\n"); + printf("**************************** Press Enter To Close ****************************\n"); + getchar(); + break; + } + memset(Response_Message, 0, 300); int Response_Message_len = recv(ClientSocket, (char*)Response_Message, 260, 0); if (Response_Message_len > 0) { @@ -244,14 +283,17 @@ bool Tcp_client(string IP, unsigned int Port_number) printf("从站响应 ："); for (int i = 0; i < Response_Message_len; i++) { - printf("0x%02x, ", Response_Message[i]); + printf("%02x ", Response_Message[i]); } printf("\n"); - if (Analysis_Response_Message(Response_Message, Request_Message, Response_Message_len)) + if (!Analysis_Response_Message(Response_Message, Request_Message, Response_Message_len)) printf("响应报文异常\n\n"); } else cout << "响应超时" << endl; + printf("**************************** Press Enter To Contioun ****************************\n"); + getchar(); + system("cls"); } //关闭套接字 closesocket(ClientSocket); diff --git a/Modbus_communication/Modbus_TCP/common.cpp b/Modbus_communication/Modbus_TCP/common.cpp index aae57fd..852a2c8 100644 --- a/Modbus_communication/Modbus_TCP/common.cpp +++ b/Modbus_communication/Modbus_TCP/common.cpp @@ -156,7 +156,7 @@ unsigned int Count_Write_date_number(int Function_code, unsigned int Operations_ } if (Function_code == 0x10) Write_date_number = Operations_Number * 2; - return Write_date_number +1; + return Write_date_number; } /********************************************************************************************* @@ -229,7 +229,7 @@ int HexStringtoByte(UINT8 *Message, string Write_date, int Message_len, int Func { if (Write_date.length() == 0) return Message_len; - Message[Message_len] = Count_Write_date_number(Function_code, Operations_Number)-1; + Message[Message_len] = Count_Write_date_number(Function_code, Operations_Number); Message_len++; const char *b = Write_date.c_str(); for (unsigned int i = 0; i + 3 < Write_date.length(); i = i + 3) diff --git a/Modbus_communication/Modbus_TCP/common.h b/Modbus_communication/Modbus_TCP/common.h index 2ab0dd5..2e1f6f3 100644 --- a/Modbus_communication/Modbus_TCP/common.h +++ b/Modbus_communication/Modbus_TCP/common.h @@ -11,7 +11,7 @@ #pragma comment(lib,"ws2_32.lib") using namespace std; -#define DEVICE_ID 0x09 //豸ID +#define DEVICE_ID 0x01 //豸ID