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