95 lines
3.9 KiB
C
95 lines
3.9 KiB
C
/****************************************************************************
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* apps/include/modbus/mbproto.h
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*
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* FreeModbus Library: 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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****************************************************************************/
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#ifndef __APPS_INCLUDE_MODBUS_MBPROTO_H
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#define __APPS_INCLUDE_MODBUS_MBPROTO_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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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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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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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)(uint8_t *pucFrame, uint16_t *pusLength);
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typedef struct
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{
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uint8_t ucFunctionCode;
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pxMBFunctionHandler pxHandler;
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} xMBFunctionHandler;
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APPS_INCLUDE_MODBUS_MBPROTO_H */
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