root / freemodbus / modbus / include / mbproto.h @ 20e5429c
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| 1 | 20e5429c | Tom Mullins | /*
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| 2 | * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
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| 3 | * Copyright (c) 2006 Christian Walter <wolti@sil.at>
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * 3. The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | *
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| 28 | * File: $Id: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
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| 29 | */
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| 30 | |||
| 31 | #ifndef _MB_PROTO_H
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| 32 | #define _MB_PROTO_H
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| 33 | |||
| 34 | #ifdef __cplusplus
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| 35 | PR_BEGIN_EXTERN_C |
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| 36 | #endif
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| 37 | /* ----------------------- Defines ------------------------------------------*/
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| 38 | #define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */ |
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| 39 | #define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */ |
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| 40 | #define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */ |
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| 41 | #define MB_FUNC_NONE ( 0 ) |
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| 42 | #define MB_FUNC_READ_COILS ( 1 ) |
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| 43 | #define MB_FUNC_READ_DISCRETE_INPUTS ( 2 ) |
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| 44 | #define MB_FUNC_WRITE_SINGLE_COIL ( 5 ) |
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| 45 | #define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 ) |
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| 46 | #define MB_FUNC_READ_HOLDING_REGISTER ( 3 ) |
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| 47 | #define MB_FUNC_READ_INPUT_REGISTER ( 4 ) |
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| 48 | #define MB_FUNC_WRITE_REGISTER ( 6 ) |
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| 49 | #define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 ) |
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| 50 | #define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 ) |
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| 51 | #define MB_FUNC_DIAG_READ_EXCEPTION ( 7 ) |
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| 52 | #define MB_FUNC_DIAG_DIAGNOSTIC ( 8 ) |
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| 53 | #define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 ) |
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| 54 | #define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 ) |
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| 55 | #define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 ) |
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| 56 | #define MB_FUNC_ERROR ( 128 ) |
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| 57 | /* ----------------------- Type definitions ---------------------------------*/
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| 58 | typedef enum |
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| 59 | {
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| 60 | MB_EX_NONE = 0x00,
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| 61 | MB_EX_ILLEGAL_FUNCTION = 0x01,
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| 62 | MB_EX_ILLEGAL_DATA_ADDRESS = 0x02,
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| 63 | MB_EX_ILLEGAL_DATA_VALUE = 0x03,
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| 64 | MB_EX_SLAVE_DEVICE_FAILURE = 0x04,
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| 65 | MB_EX_ACKNOWLEDGE = 0x05,
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| 66 | MB_EX_SLAVE_BUSY = 0x06,
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| 67 | MB_EX_MEMORY_PARITY_ERROR = 0x08,
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| 68 | MB_EX_GATEWAY_PATH_FAILED = 0x0A,
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| 69 | MB_EX_GATEWAY_TGT_FAILED = 0x0B
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| 70 | } eMBException; |
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| 71 | |||
| 72 | typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength );
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| 73 | |||
| 74 | typedef struct |
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| 75 | {
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| 76 | UCHAR ucFunctionCode; |
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| 77 | pxMBFunctionHandler pxHandler; |
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| 78 | } xMBFunctionHandler; |
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| 79 | |||
| 80 | #ifdef __cplusplus
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| 81 | PR_END_EXTERN_C |
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| 82 | #endif
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| 83 | #endif
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