1

/* File generated by Beremiz (PlugGenerate_C method of modbus Plugin instance) */

     2

     3

/*

     4

 * Copyright (c) 2016 Mario de Sousa (msousa@fe.up.pt)

     5

 *

     6

 * This file is part of the Modbus library for Beremiz and matiec.

     7

 *

     8

 * This Modbus library is free software: you can redistribute it and/or modify

     9

 * it under the terms of the GNU Lesser General Public License as published by

    11

 * (at your option) any later version.

    12

 *

    13

 * This program is distributed in the hope that it will be useful, but

    14

 * WITHOUT ANY WARRANTY; without even the implied warranty of

    15

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 

    16

 * General Public License for more details.

    17

 *

    18

 * You should have received a copy of the GNU Lesser General Public License

    19

 * along with this Modbus library.  If not, see <http://www.gnu.org/licenses/>.

    20

 *

    21

 * This code is made available on the understanding that it will not be

    22

 * used in safety-critical situations without a full and competent review.

    23

 */

    24

    25

#include "mb_addr.h"

    26

#include "mb_tcp_private.h"

    27

#include "mb_master_private.h"

    28

    29

    30

    31

#define DEF_REQ_SEND_RETRIES 0

    32

    33

  // Used by the Modbus server node

    34

#define MEM_AREA_SIZE 65536

    35

typedef struct{

    36

	    u16		ro_bits [MEM_AREA_SIZE];

    37

	    u16		rw_bits [MEM_AREA_SIZE];

    38

	    u16		ro_words[MEM_AREA_SIZE];

    39

	    u16		rw_words[MEM_AREA_SIZE];

    40

	} server_mem_t;

    41

    42

typedef struct{

    43

	    const char *location;

    44

	    u8		slave_id;

    45

	    node_addr_t	node_address;

    46

	    int		mb_nd;      // modbus library node used for this server 

    47

	    int		init_state; // store how far along the server's initialization has progressed

    48

	    pthread_t	thread_id;  // thread handling this server

    49

	    server_mem_t	mem_area;

    50

	} server_node_t;

    51

    52

    53

  // Used by the Modbus client node

    54

typedef struct{

    55

	    const char *location;

    56

	    node_addr_t	node_address;

    57

	    int		mb_nd;

    58

	    int		init_state; // store how far along the client's initialization has progressed

    59

	    u64		comm_period;

    60

	    int		prev_error; // error code of the last printed error message (0 when no error) 

    61

	    pthread_t	thread_id;  // thread handling all communication with this client

    62

	} client_node_t;

    63

    64

    65

  // Used by the Modbus client plugin

    66

typedef enum {

    67

	    req_input,

    68

	    req_output,

    69

	    no_request		/* just for tests to quickly disable a request */

    70

	} iotype_t;

    71

    72

#define REQ_BUF_SIZE 2000

    73

typedef struct{

    74

	    const char *location;

    75

	    int		client_node_id;

    76

	    u8		slave_id;

    77

	    iotype_t	req_type;

    78

	    u8		mb_function;

    79

	    u16		address;

    80

	    u16		count;

    81

	    int		retries;

    82

	    u8		error_code; // modbus error code (if any) of current request

    83

	    int		prev_error; // error code of the last printed error message (0 when no error) 

    84

	    struct timespec resp_timeout;

    85

	      // buffer used to store located PLC variables

    86

	    u16		plcv_buffer[REQ_BUF_SIZE];

    87

	      // buffer used to store data coming from / going to server

    88

	    u16		coms_buffer[REQ_BUF_SIZE]; 

    89

	    pthread_mutex_t coms_buf_mutex; // mutex to access coms_buffer[]

    90

	} client_request_t;

    91

    92

    93

/* The total number of nodes, needed to support _all_ instances of the modbus plugin */

    94

#define TOTAL_TCPNODE_COUNT       %(total_tcpnode_count)s

    95

#define TOTAL_RTUNODE_COUNT       %(total_rtunode_count)s

    96

#define TOTAL_ASCNODE_COUNT       %(total_ascnode_count)s

    97

    98

/* Values for instance %(locstr)s of the modbus plugin */

    99

#define MAX_NUMBER_OF_TCPCLIENTS  %(max_remote_tcpclient)s

   100

   101

#define NUMBER_OF_TCPSERVER_NODES %(tcpserver_node_count)s

   102

#define NUMBER_OF_TCPCLIENT_NODES %(tcpclient_node_count)s

   103

#define NUMBER_OF_TCPCLIENT_REQTS %(tcpclient_reqs_count)s

   104

   105

#define NUMBER_OF_RTUSERVER_NODES %(rtuserver_node_count)s

   106

#define NUMBER_OF_RTUCLIENT_NODES %(rtuclient_node_count)s

   107

#define NUMBER_OF_RTUCLIENT_REQTS %(rtuclient_reqs_count)s

   108

   109

#define NUMBER_OF_ASCIISERVER_NODES %(ascserver_node_count)s

   110

#define NUMBER_OF_ASCIICLIENT_NODES %(ascclient_node_count)s

   111

#define NUMBER_OF_ASCIICLIENT_REQTS %(ascclient_reqs_count)s

   112

   113

#define NUMBER_OF_SERVER_NODES (NUMBER_OF_TCPSERVER_NODES + \

   114

                                NUMBER_OF_RTUSERVER_NODES + \

   115

                                NUMBER_OF_ASCIISERVER_NODES)

   116

   117

#define NUMBER_OF_CLIENT_NODES (NUMBER_OF_TCPCLIENT_NODES + \

   118

                                NUMBER_OF_RTUCLIENT_NODES + \

   119

                                NUMBER_OF_ASCIICLIENT_NODES)

   120

   121

#define NUMBER_OF_CLIENT_REQTS (NUMBER_OF_TCPCLIENT_REQTS + \

   122

                                NUMBER_OF_RTUCLIENT_REQTS + \

   123

                                NUMBER_OF_ASCIICLIENT_REQTS)

   124

   125

   126

/*initialization following all parameters given by user in application*/

   127

   128

static client_node_t		client_nodes[NUMBER_OF_CLIENT_NODES] = {

   129

%(client_nodes_params)s

   130

};

   131

   132

   133

static client_request_t	client_requests[NUMBER_OF_CLIENT_REQTS] = {

   134

%(client_req_params)s

   135

};

   136

   137

   138

static server_node_t		server_nodes[NUMBER_OF_SERVER_NODES] = {

   139

%(server_nodes_params)s

   140

}

   141

;

   142

   143

/*******************/

   144

/*located variables*/

   145

/*******************/

   146

   147

%(loc_vars)s

   148