# modbus_close(3) Manual Page

## NAME

modbus_close - close a Modbus connection

## SYNOPSIS

void modbus_close(modbus_t *ctx);

## DESCRIPTION

The modbus_close() function shall close the connection established with the backend set in the context.

## RETURN VALUE

There is no return value.

## 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;
    }

    modbus_close(ctx);
    modbus_free(ctx);

## SEE ALSO

modbus_connect(3)

## AUTHORS

The libmodbus documentation was written by Stéphane Raimbault <stephane.raimbault@gmail.com>