modbus_get_byte_timeout - Man Page

get timeout between bytes


int modbus_get_byte_timeout(modbus_t *ctx, uint32_t *to_sec, uint32_t *to_usec);


The modbus_get_byte_timeout() function shall store the timeout interval between two consecutive bytes of the same message in the to_sec and to_usec arguments.

Return Value

The function shall return 0 if successful. Otherwise it shall return -1 and set errno.


uint32_t to_sec;
uint32_t to_usec;

/* Save original timeout */
modbus_get_byte_timeout(ctx, &to_sec, &to_usec);

See Also

modbus_set_byte_timeout(3) modbus_get_response_timeout(3) modbus_set_response_timeout(3)


The libmodbus documentation was written by Stéphane Raimbault <>

Referenced By

libmodbus(7), modbus_get_response_timeout(3), modbus_set_byte_timeout(3), modbus_set_response_timeout(3).

01/25/2024 libmodbus v3.1.7 libmodbus Manual