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/****************************************************************************
* apps/include/modbus/mbproto.h
*
* FreeModbus Library: 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.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_MODBUS_MBPROTO_H
#define __APPS_INCLUDE_MODBUS_MBPROTO_H
#ifdef __cplusplus
PR_BEGIN_EXTERN_C
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#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 (128)
/****************************************************************************
* Public 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)(uint8_t *pucFrame, uint16_t *pusLength);
typedef struct
{
uint8_t ucFunctionCode;
pxMBFunctionHandler pxHandler;
} xMBFunctionHandler;
#ifdef __cplusplus
PR_END_EXTERN_C
#endif
#endif /* __APPS_INCLUDE_MODBUS_MBPROTO_H */
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