modbus_rtu_set_rts_delay

Name

modbus_rtu_set_rts_delay - set the RTS delay in RTU

Synopsis
    int modbus_rtu_set_rts_delay(modbus_t *ctx, int us);

Description

The modbus_rtu_set_rts_delay() function shall set the Request To Send delay period of the libmodbus context 'ctx'.

This function can only be used with a context using a RTU backend.

Return value

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

Errors

    •   EINVAL, the libmodbus backend is not RTU or a negative delay was specified.

See also

    •   modbus_rtu_get_rts_delay ⟨modbus_rtu_get_rts_delay.md⟩