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Man Pages
MODBUS_GET_RESPONSE_(3) libmodbus Manual MODBUS_GET_RESPONSE_(3)

modbus_get_response_timeout - get timeout for response

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

The modbus_get_response_timeout() function shall return the timeout interval used to wait for a response in the to_sec and to_usec arguments.

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

uint32_t old_response_to_sec;
uint32_t old_response_to_usec;
/* Save original timeout */
modbus_get_response_timeout(ctx, &old_response_to_sec, &old_response_to_usec);
/* Define a new and too short timeout! */
modbus_set_response_timeout(ctx, 0, 0);

modbus_set_response_timeout(3) modbus_get_byte_timeout(3) modbus_set_byte_timeout(3)

The libmodbus documentation was written by Stéphane Raimbault <stephane.raimbault@gmail.com>
04/09/2022 libmodbus v3.1.6

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