Specifies the current state of the Ring Indicator (RI) input signal. The RI signal is often used by modems to indicate that the telephone line is ringing. This property is read only except when the Wire Mode property is set to RS232/DCE or to RS232/Auto with the hardware currently in the DCE state.

Anmerkungen

Diese Eigenschaft hat folgende Merkmale:

Kurzname RI State
Datentyp ci16.png
Berechtigungen Lesen/Schreiben
In Runtime-Engine verfügbar Ja
Für Real-Time-Betriebssystem verfügbar Ja
Unknown -1
Unasserted 0
Asserted 1