| /**************************************************************************** |
| * 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 |
| 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 |
| } |
| #endif |
| |
| #endif /* __APPS_INCLUDE_MODBUS_MBPROTO_H */ |