el.h

基于EthernetIP协议的应用程序,可以读取AB公司Controllogix系列Ethernetip协议PLC数据. 此软件代码可用于工业控制.

/****************************************************************************
*****************************************************************************
**
** File Name
** ---------
**
** EL.H
**
*****************************************************************************
*****************************************************************************
**
** Description
** -----------
**
** This module contains the public interfaces for the Ethernet Link Object.
**
*****************************************************************************
*****************************************************************************
**
** Source Change Indices
** ---------------------
**
** Porting: <none>0----<major>         Customization: <none>0----<major>
**
*****************************************************************************
*****************************************************************************
**
** Services List
** -------------
**
**    EL_Init()                     - Pre task startup initialization.
**    EL_ObjectTask()               - Tribble processing task for the Object.
**
*****************************************************************************
*****************************************************************************
**                                                                         **
** ETHERNET/IP EXAMPLE CODE                                                **
** COPYRIGHT (c) 2000-2005 ODVA (Open DeviceNet Vendor Association)		   **
**						   & ControlNet International Ltd.                 **
**                                                                         **
** All rights reserved, except as specifically licensed in writing.        **
** Use of the Ethernet/IP Example Protocol Software is subject to          **
** ODVA's and ControlNet International's Terms of Use Agreement.           **
** The following work constitutes example program code and is intended     **
** merely to illustrate useful programming techniques.  The user is        **
** responsible for applying the code correctly.  The code is provided      **
** AS IS without warranty and is in no way guaranteed to be error-free.    **
**                                                                         **
*****************************************************************************
*****************************************************************************
*/

/****************************************************************************
*****************************************************************************
**
** Change Log
** ----------
**
**
*****************************************************************************
*****************************************************************************
*/

#ifndef EL_H
#define EL_H

#include "elu_obj.h"    /* Ethernet Link Object User interfaces  */

/*
** See if this code is to be included.
*/

#ifdef ETHERNET_LINK_OBJECT



/****************************************************************************
**
** Constants
**
*****************************************************************************
*/

/*---------------------------------------------------------------------------
** Class and revision numbers.
**---------------------------------------------------------------------------
*/

#define EL_CLASS_NUMBER          0xF6
#define EL_REVISION                 2/*1*/

/*---------------------------------------------------------------------------
**
** Class and instance attribute numbers.
**
**---------------------------------------------------------------------------
*/

#define EL_CA_REVISION              1
#define EL_CA_MAX_INSTANCE          2
#define EL_CA_NUM_INSTANCES         3

#define EL_IA_INTERFACE_SPEED       1
#define EL_IA_INTERFACE_FLAGS       2
#define EL_IA_PHYSICAL_ADDRESS      3
#define EL_IA_INTERFACE_COUNTERS    4
#define EL_IA_MEDIA_COUNTERS        5


/*---------------------------------------------------------------------------
**
** Object service codes.
**
**---------------------------------------------------------------------------
*/

#define EL_SC_GET_AND_CLEAR      0x4C

/*---------------------------------------------------------------------------
**
** Attribute data lengths.
**
**---------------------------------------------------------------------------
*/

#define EL_MAC_ADDR_LENGTH          6


/*---------------------------------------------------------------------------
**
** Interface flags attribute bit-map
**
**---------------------------------------------------------------------------
*/

/*
** Bit 0:  0 indicates inactive link; 1 indicates an active link
*/

#define EL_FLAG_LINK_ACTIVE   0x00000001

/*
** Bit 1:  0 indicates half duplex; 1 indicates full duplex
*/

#define EL_FLAG_DUPLEX_MODE   0x00000002


/****************************************************************************
**
** Typedefs
**
*****************************************************************************
*/

/*---------------------------------------------------------------------------
**
** EL_LeClassAttributeType
**
** Class attribute structure.
**
**---------------------------------------------------------------------------
*/

typedef packet_struct EL_LeClassAttributeType
{
   LeUINT16  iLeRevision;
   LeUINT16  iLeMaxInstance;
   LeUINT16  iLeNumInstance;
}
GNU_PACKED EL_LeClassAttributeType;



/*---------------------------------------------------------------------------
**
** EL_LeInstanceAttributeType
**
** Instance attribute structure. 
**
**---------------------------------------------------------------------------
*/

typedef packet_struct EL_LeInstanceAttributeType
{
   LeUINT32   lLeInterfaceSpeed;
   LeUINT32   lLeInterfaceFlags;
   UINT8      achEnetAddr[EL_MAC_ADDR_LENGTH];

}
GNU_PACKED EL_LeInstanceAttributeType;



/****************************************************************************
**
** Globals
**
*****************************************************************************
*/

/*---------------------------------------------------------------------------
**
** EL_xQed
**
** Message queue for issuing requests to the Tcp/Ip Interface object.
**
**---------------------------------------------------------------------------
*/

extern GS_MsgQueueType EL_xQid;



/****************************************************************************
**
** Services
**
*****************************************************************************
*/

/*---------------------------------------------------------------------------
**
** EL_Init()
**
** Pre task startup initialization.
**
**---------------------------------------------------------------------------
**
** Inputs:
**    None
**
** Outputs:
**    None
**
** Usage:
**    EL_Init()
**
**---------------------------------------------------------------------------
*/

EXTFUNC StatusType EL_Init( UINT16 iOptions );




/*---------------------------------------------------------------------------
**
** EL_ObjectTask()
**
** Ethernet Link Object, object task.
**
**---------------------------------------------------------------------------
**
** Inputs:
**    None
**
** Outputs:
**    None
**
** Usage:
**    EL_ObjectTask()
**
**---------------------------------------------------------------------------
*/

EXTFUNC TASKRETURN EL_ObjectTask( TASKPARAM );



#endif  /* #ifdef ETHERNET_LINK_OBJECT */
#endif  /* inclusion lock */

/****************************************************************************
**
** End of EL.H
**
*****************************************************************************
*/