Athanassios Mavrogeorgiadis / Mbed 2 deprecated ModbusTCP

Modbus RTU/ASCII/TCP with lwip TCP working partial, but with errors (retransmitions)

Dependencies:   EthernetNetIf mbed

ModBus/mbfuncother.cpp@0:f54e9507171b, 2011-12-05 (annotated)

Committer:
tmav123
Date:
Mon Dec 05 22:49:02 2011 +0000
Revision:
0:f54e9507171b

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


tmav123

0:f54e9507171b


     1

/* 





tmav123

0:f54e9507171b


     2

 * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.





tmav123

0:f54e9507171b


     3

 * Copyright (c) 2006 Christian Walter <wolti@sil.at>





tmav123

0:f54e9507171b


     4

 * All rights reserved.





tmav123

0:f54e9507171b


     5

 *





tmav123

0:f54e9507171b


     6

 * Redistribution and use in source and binary forms, with or without





tmav123

0:f54e9507171b


     7

 * modification, are permitted provided that the following conditions





tmav123

0:f54e9507171b


     8

 * are met:





tmav123

0:f54e9507171b


     9

 * 1. Redistributions of source code must retain the above copyright





tmav123

0:f54e9507171b


    10

 *    notice, this list of conditions and the following disclaimer.





tmav123

0:f54e9507171b


    11

 * 2. Redistributions in binary form must reproduce the above copyright





tmav123

0:f54e9507171b


    12

 *    notice, this list of conditions and the following disclaimer in the





tmav123

0:f54e9507171b


    13

 *    documentation and/or other materials provided with the distribution.





tmav123

0:f54e9507171b


    14

 * 3. The name of the author may not be used to endorse or promote products





tmav123

0:f54e9507171b


    15

 *    derived from this software without specific prior written permission.





tmav123

0:f54e9507171b


    16

 *





tmav123

0:f54e9507171b


    17

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR





tmav123

0:f54e9507171b


    18

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES





tmav123

0:f54e9507171b


    19

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.





tmav123

0:f54e9507171b


    20

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,





tmav123

0:f54e9507171b


    21

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT





tmav123

0:f54e9507171b


    22

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,





tmav123

0:f54e9507171b


    23

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY





tmav123

0:f54e9507171b


    24

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT





tmav123

0:f54e9507171b


    25

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF





tmav123

0:f54e9507171b


    26

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.





tmav123

0:f54e9507171b


    27

 *





tmav123

0:f54e9507171b


    28

 * File: $Id: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $





tmav123

0:f54e9507171b


    29

 */





tmav123

0:f54e9507171b


    30







tmav123

0:f54e9507171b


    31

/* ----------------------- System includes ----------------------------------*/





tmav123

0:f54e9507171b


    32

#include "stdlib.h"





tmav123

0:f54e9507171b


    33

#include "string.h"





tmav123

0:f54e9507171b


    34







tmav123

0:f54e9507171b


    35

/* ----------------------- Platform includes --------------------------------*/





tmav123

0:f54e9507171b


    36

#include "port.h"





tmav123

0:f54e9507171b


    37







tmav123

0:f54e9507171b


    38

/* ----------------------- Modbus includes ----------------------------------*/





tmav123

0:f54e9507171b


    39

#include "mb.h"





tmav123

0:f54e9507171b


    40

#include "mbframe.h"





tmav123

0:f54e9507171b


    41

#include "mbproto.h"





tmav123

0:f54e9507171b


    42

#include "mbconfig.h"





tmav123

0:f54e9507171b


    43







tmav123

0:f54e9507171b


    44

#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0





tmav123

0:f54e9507171b


    45







tmav123

0:f54e9507171b


    46

/* ----------------------- Static variables ---------------------------------*/





tmav123

0:f54e9507171b


    47

static UCHAR    ucMBSlaveID[MB_FUNC_OTHER_REP_SLAVEID_BUF];





tmav123

0:f54e9507171b


    48

static USHORT   usMBSlaveIDLen;





tmav123

0:f54e9507171b


    49







tmav123

0:f54e9507171b


    50

/* ----------------------- Start implementation -----------------------------*/





tmav123

0:f54e9507171b


    51







tmav123

0:f54e9507171b


    52

eMBErrorCode





tmav123

0:f54e9507171b


    53

eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,





tmav123

0:f54e9507171b


    54

               UCHAR const *pucAdditional, USHORT usAdditionalLen )





tmav123

0:f54e9507171b


    55

{





tmav123

0:f54e9507171b


    56

    eMBErrorCode    eStatus = MB_ENOERR;





tmav123

0:f54e9507171b


    57







tmav123

0:f54e9507171b


    58

    /* the first byte and second byte in the buffer is reserved for





tmav123

0:f54e9507171b


    59

     * the parameter ucSlaveID and the running flag. The rest of





tmav123

0:f54e9507171b


    60

     * the buffer is available for additional data. */





tmav123

0:f54e9507171b


    61

    if( usAdditionalLen + 2 < MB_FUNC_OTHER_REP_SLAVEID_BUF )





tmav123

0:f54e9507171b


    62

    {





tmav123

0:f54e9507171b


    63

        usMBSlaveIDLen = 0;





tmav123

0:f54e9507171b


    64

        ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID;





tmav123

0:f54e9507171b


    65

        ucMBSlaveID[usMBSlaveIDLen++] = ( UCHAR )( xIsRunning ? 0xFF : 0x00 );





tmav123

0:f54e9507171b


    66

        if( usAdditionalLen > 0 )





tmav123

0:f54e9507171b


    67

        {





tmav123

0:f54e9507171b


    68

            memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional,





tmav123

0:f54e9507171b


    69

                    ( size_t )usAdditionalLen );





tmav123

0:f54e9507171b


    70

            usMBSlaveIDLen += usAdditionalLen;





tmav123

0:f54e9507171b


    71

        }





tmav123

0:f54e9507171b


    72

    }





tmav123

0:f54e9507171b


    73

    else





tmav123

0:f54e9507171b


    74

    {





tmav123

0:f54e9507171b


    75

        eStatus = MB_ENORES;





tmav123

0:f54e9507171b


    76

    }





tmav123

0:f54e9507171b


    77

    return eStatus;





tmav123

0:f54e9507171b


    78

}





tmav123

0:f54e9507171b


    79







tmav123

0:f54e9507171b


    80

eMBException





tmav123

0:f54e9507171b


    81

eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen )





tmav123

0:f54e9507171b


    82

{





tmav123

0:f54e9507171b


    83

    memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen );





tmav123

0:f54e9507171b


    84

    *usLen = ( USHORT )( MB_PDU_DATA_OFF + usMBSlaveIDLen );





tmav123

0:f54e9507171b


    85

    return MB_EX_NONE;





tmav123

0:f54e9507171b


    86

}





tmav123

0:f54e9507171b


    87







tmav123

0:f54e9507171b


    88

#endif