Specifies the current state of the Data Carrier Detect (DCD) input signal. This is often used by modems to indicate the detection of a carrier (modem) on the phone line. This signal is also known as Receive Line Signal Detect (RLSD). This property is read only except when the Wire Mode property is set to RS232/DCE, or RS232/Auto with the hardware currently in the DCE state.

Anmerkungen

Diese Eigenschaft hat folgende Merkmale:

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