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mbproto.h
00001 /* 00002 * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU. 00003 * Copyright (c) 2006 Christian Walter <wolti@sil.at> 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. The name of the author may not be used to endorse or promote products 00015 * derived from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 00018 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00019 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 00020 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 00021 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 00022 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00023 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00024 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 00026 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 * 00028 * File: $Id: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $ 00029 */ 00030 00031 #ifndef _MB_PROTO_H 00032 #define _MB_PROTO_H 00033 00034 #ifdef __cplusplus 00035 PR_BEGIN_EXTERN_C 00036 #endif 00037 /* ----------------------- Defines ------------------------------------------*/ 00038 #define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */ 00039 #define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */ 00040 #define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */ 00041 #define MB_FUNC_NONE ( 0 ) 00042 #define MB_FUNC_READ_COILS ( 1 ) 00043 #define MB_FUNC_READ_DISCRETE_INPUTS ( 2 ) 00044 #define MB_FUNC_WRITE_SINGLE_COIL ( 5 ) 00045 #define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 ) 00046 #define MB_FUNC_READ_HOLDING_REGISTER ( 3 ) 00047 #define MB_FUNC_READ_INPUT_REGISTER ( 4 ) 00048 #define MB_FUNC_WRITE_REGISTER ( 6 ) 00049 #define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 ) 00050 #define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 ) 00051 #define MB_FUNC_DIAG_READ_EXCEPTION ( 7 ) 00052 #define MB_FUNC_DIAG_DIAGNOSTIC ( 8 ) 00053 #define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 ) 00054 #define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 ) 00055 #define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 ) 00056 #define MB_FUNC_ERROR ( 128 ) 00057 /* ----------------------- Type definitions ---------------------------------*/ 00058 typedef enum 00059 { 00060 MB_EX_NONE = 0x00, 00061 MB_EX_ILLEGAL_FUNCTION = 0x01, 00062 MB_EX_ILLEGAL_DATA_ADDRESS = 0x02, 00063 MB_EX_ILLEGAL_DATA_VALUE = 0x03, 00064 MB_EX_SLAVE_DEVICE_FAILURE = 0x04, 00065 MB_EX_ACKNOWLEDGE = 0x05, 00066 MB_EX_SLAVE_BUSY = 0x06, 00067 MB_EX_MEMORY_PARITY_ERROR = 0x08, 00068 MB_EX_GATEWAY_PATH_FAILED = 0x0A, 00069 MB_EX_GATEWAY_TGT_FAILED = 0x0B 00070 } eMBException; 00071 00072 typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength ); 00073 00074 typedef struct 00075 { 00076 UCHAR ucFunctionCode; 00077 pxMBFunctionHandler pxHandler; 00078 } xMBFunctionHandler; 00079 00080 #ifdef __cplusplus 00081 PR_END_EXTERN_C 00082 #endif 00083 #endif
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