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- modbus_connect(3)
- =================
- NAME
- ----
- modbus_connect - establish a Modbus connection
- SYNOPSIS
- --------
- *int modbus_connect(modbus_t *'ctx');*
- DESCRIPTION
- -----------
- The *modbus_connect()* function shall establish a connection to a Modbus server,
- a network or a bus using the context information of libmodbus context given in
- argument.
- RETURN VALUE
- ------------
- The 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
- -------
- [source,c]
- -------------------
- 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
- --------
- linkmb:modbus_close[3]
- AUTHORS
- -------
- The libmodbus documentation was written by Stéphane Raimbault
- <stephane.raimbault@gmail.com>
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