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MODBUS_CONNECT(3)              Libmodbus Manual              MODBUS_CONNECT(3)

NAME
       modbus_connect - establish a Modbus connection

SYNOPSIS
       int modbus_connect(modbus_t *ctx);

DESCRIPTION
       The modbus_connect() function shall etablish a connection to a Modbus
       server, a network or a bus using the context information of libmodbus
       context given in argument.

RETURN VALUE
       The modbus_connect() function shall return 0 if successful. Otherwise
       it shall return -1 and set errno to one of the values defined by the
       system calls of the underlying platform.

EXAMPLE
           modbus_t *ctx;

           ctx = modbus_new_tcp("127.0.0.1", 502);
           if (modbus_connect(ctx) == -1) {
               fprintf(stderr, "Connection failed: %s\n", modbus_strerror(errno));
               modbus_free(ctx);
               return -1;
           }

SEE ALSO
       modbus_close(3)

AUTHORS
       The libmodbus documentation was written by Stephane Raimbault
       <stephane.raimbault@gmail.com[1]>

NOTES
        1. stephane.raimbault@gmail.com
           mailto:stephane.raimbault@gmail.com

libmodbus 3.1.0                   10/06/2013                 MODBUS_CONNECT(3)