2013-11-06 21:47:49 +08:00
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/*
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* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
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* Copyright (c) 2006 Christian Walter <wolti@sil.at>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* File: $Id: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
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*/
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#ifndef _MB_PROTO_H
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#define _MB_PROTO_H
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#ifdef __cplusplus
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PR_BEGIN_EXTERN_C
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#endif
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/* ----------------------- Defines ------------------------------------------*/
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#define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */
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#define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */
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#define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */
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#define MB_FUNC_NONE ( 0 )
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#define MB_FUNC_READ_COILS ( 1 )
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#define MB_FUNC_READ_DISCRETE_INPUTS ( 2 )
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#define MB_FUNC_WRITE_SINGLE_COIL ( 5 )
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#define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 )
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#define MB_FUNC_READ_HOLDING_REGISTER ( 3 )
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#define MB_FUNC_READ_INPUT_REGISTER ( 4 )
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#define MB_FUNC_WRITE_REGISTER ( 6 )
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#define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 )
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#define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 )
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#define MB_FUNC_DIAG_READ_EXCEPTION ( 7 )
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#define MB_FUNC_DIAG_DIAGNOSTIC ( 8 )
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#define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 )
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#define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 )
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#define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 )
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#define MB_FUNC_ERROR ( 128 )
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/* ----------------------- Type definitions ---------------------------------*/
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typedef enum
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{
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MB_EX_NONE = 0x00,
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MB_EX_ILLEGAL_FUNCTION = 0x01,
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MB_EX_ILLEGAL_DATA_ADDRESS = 0x02,
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MB_EX_ILLEGAL_DATA_VALUE = 0x03,
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MB_EX_SLAVE_DEVICE_FAILURE = 0x04,
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MB_EX_ACKNOWLEDGE = 0x05,
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MB_EX_SLAVE_BUSY = 0x06,
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MB_EX_MEMORY_PARITY_ERROR = 0x08,
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MB_EX_GATEWAY_PATH_FAILED = 0x0A,
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MB_EX_GATEWAY_TGT_FAILED = 0x0B
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} eMBException;
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typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength );
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typedef struct
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{
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UCHAR ucFunctionCode;
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pxMBFunctionHandler pxHandler;
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} xMBFunctionHandler;
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#ifdef __cplusplus
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PR_END_EXTERN_C
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#endif
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#endif
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