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modbus_get_indication_timeout - get timeout used to wait for an indication (request received by a server).


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


The modbus_get_indication_timeout() function shall store the timeout interval used to wait for an indication in the to_sec and to_usec arguments. Indication is the term used by the Modbus protocol to designate a request received by the server.

The default value is zero, it means the server will wait forever.

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_indication_timeout(ctx, &to_sec, &to_usec);

See also