89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/*
|
|
* FreeModbus Libary: 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.
|
|
*
|
|
* File: $Id: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $
|
|
*/
|
|
|
|
/* ----------------------- System includes ----------------------------------*/
|
|
#include "stdlib.h"
|
|
#include "string.h"
|
|
|
|
/* ----------------------- Platform includes --------------------------------*/
|
|
#include "port.h"
|
|
|
|
/* ----------------------- Modbus includes ----------------------------------*/
|
|
#include "mb.h"
|
|
#include "mbframe.h"
|
|
#include "mbproto.h"
|
|
#include "mbconfig.h"
|
|
|
|
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
|
|
|
|
/* ----------------------- Static variables ---------------------------------*/
|
|
static UCHAR ucMBSlaveID[MB_FUNC_OTHER_REP_SLAVEID_BUF];
|
|
static USHORT usMBSlaveIDLen;
|
|
|
|
/* ----------------------- Start implementation -----------------------------*/
|
|
|
|
eMBErrorCode
|
|
eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
|
|
UCHAR const *pucAdditional, USHORT usAdditionalLen )
|
|
{
|
|
eMBErrorCode eStatus = MB_ENOERR;
|
|
|
|
/* the first byte and second byte in the buffer is reserved for
|
|
* the parameter ucSlaveID and the running flag. The rest of
|
|
* the buffer is available for additional data. */
|
|
if( usAdditionalLen + 2 < MB_FUNC_OTHER_REP_SLAVEID_BUF )
|
|
{
|
|
usMBSlaveIDLen = 0;
|
|
ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID;
|
|
ucMBSlaveID[usMBSlaveIDLen++] = ( UCHAR )( xIsRunning ? 0xFF : 0x00 );
|
|
if( usAdditionalLen > 0 )
|
|
{
|
|
memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional,
|
|
( size_t )usAdditionalLen );
|
|
usMBSlaveIDLen += usAdditionalLen;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
eStatus = MB_ENORES;
|
|
}
|
|
return eStatus;
|
|
}
|
|
|
|
eMBException
|
|
eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen )
|
|
{
|
|
memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen );
|
|
*usLen = ( USHORT )( MB_PDU_DATA_OFF + usMBSlaveIDLen );
|
|
return MB_EX_NONE;
|
|
}
|
|
|
|
#endif
|