Modbus.h

00001 /*******************************************************************/
00002 /*                                                                 */
00003 /*                 Modbus                                          */
00004 /*                                                                 */
00005 /*  Gestion de la liaison Modbus esclave                           */
00006 /*                                                                 */
00007 /*                                                                 */
00008 /*******************************************************************/
00009 #ifndef _MODBUS_
00010 #define _MODBUS_
00011 
00012 #include "mbed.h"
00013 #include <Serial.h>
00014 
00015 #include "Constantes.h"
00016 #include "Variable.h"
00017 
00018 #include "time.h"
00019 
00020 
00021 
00022 /***** Etats **********/
00023 #define ARRET       0
00024 #define ATTENTE     1
00025 #define RECEPTION   2
00026 #define RECU        3
00027 #define TRAITE      4
00028 #define EMISSION    5
00029 #define FIN         6
00030 #define ERREUR      7
00031 #define TIMEOUT     8
00032 
00033 /* ----------------------- Defines ------------------------------------------*/
00034 #define MB_ADDRESSE_BROADCAST                 ( 0 )   /*! Modbus adresse de broadcast */
00035 #define MB_ADDRESSE_MIN                       ( 1 )   /*! Smallest possible slave address. */
00036 #define MB_ADDRESSE_MAX                       ( 247 ) /*! Biggest possible slave address. */
00037 #define MB_FUNC_NONE                          (  0 )
00038 #define MB_FUNC_READ_COILS                    (  1 )
00039 #define MB_FUNC_READ_DISCRETE_INPUTS          (  2 )
00040 #define MB_FUNC_WRITE_SINGLE_COIL             (  5 )
00041 #define MB_FUNC_WRITE_MULTIPLE_COILS          ( 15 )
00042 #define MB_FUNC_READ_HOLDING_REGISTER         ( 3 )
00043 #define MB_FUNC_READ_INPUT_REGISTER           (  4 )
00044 #define MB_FUNC_WRITE_REGISTER                (  6 )
00045 #define MB_FUNC_WRITE_MULTIPLE_REGISTERS      ( 16 )
00046 #define MB_FUNC_READWRITE_MULTIPLE_REGISTERS  ( 23 )
00047 #define MB_FUNC_DIAG_READ_EXCEPTION           (  7 )
00048 #define MB_FUNC_DIAG_DIAGNOSTIC               (  8 )
00049 #define MB_FUNC_DIAG_GET_COM_EVENT_CNT        ( 11 )
00050 #define MB_FUNC_DIAG_GET_COM_EVENT_LOG        ( 12 )
00051 #define MB_FUNC_OTHER_REPORT_SLAVEID          ( 17 )
00052 #define MB_FUNC_ERROR                         ( 128 )
00053 /* ----------------------- Type definitions ---------------------------------*/
00054     typedef enum
00055 {
00056     MB_EX_NONE = 0x00,
00057     MB_EX_ILLEGAL_FUNCTION = 0x01,
00058     MB_EX_ILLEGAL_DATA_ADDRESS = 0x02,
00059     MB_EX_ILLEGAL_DATA_VALUE = 0x03,
00060     MB_EX_SLAVE_DEVICE_FAILURE = 0x04,
00061     MB_EX_ACKNOWLEDGE = 0x05,
00062     MB_EX_SLAVE_BUSY = 0x06,
00063     MB_EX_MEMORY_PARITY_ERROR = 0x08,
00064     MB_EX_GATEWAY_PATH_FAILED = 0x0A,
00065     MB_EX_GATEWAY_TGT_FAILED = 0x0B
00066 } Code_Erreur_t ; 
00067 
00068 #define TAILLE_MESSAGE_MAXI  20
00069 
00070 typedef struct
00071     {
00072     U8  Etat_U8 ;
00073     U8  Code_Erreur ;
00074     U8  Trame_Recue_aU8 [TAILLE_MESSAGE_MAXI] ;
00075     U8  Nb_Caracteres_Recus_U8 ;
00076     U8  Trame_Reponse_aU8 [TAILLE_MESSAGE_MAXI] ;
00077     U8  Nb_Caracteres_A_Emettre_U8 ;
00078     }   Ordre_Modbus_t ;
00079 
00080 #define TAILLE_PILE_ORDRES  5
00081 
00082 
00083  extern  volatile    Ordre_Modbus_t  Ordres[TAILLE_PILE_ORDRES] ;
00084 
00085 
00086  
00087  extern void    vModbus_Init(int Baudrate) ;   
00088  extern void    vModbus_Start() ;
00089  extern void    vModbus_Stop() ;
00090  extern void    vModbus_Reset() ;
00091  extern void    vModbus() ;
00092 
00093 
00094 
00095 
00096 #endif