Specify the callback function to execute when the CD, CTS, DSR, or RI pins change state
PinStatusFcn to execute a
callback function when a pin status event occurs. A pin status event
occurs when the Carrier Detect (CD), Clear to Send (CTS), Data Set
Ready (DSR) or Ring Indicator (RI) pin changes state. A serial port
pin changes state when it is asserted or unasserted. Information about
the state of these pins is recorded in the
Note: A pin status event can be generated at any time during the serial port session.
RecordStatus property value is
and a pin status event occurs, the record file records this information:
The event type as
The pin that changed its state, and the pin state
The time the event occurred using the format day-month-year hour:minute:second:millisecond
To learn how to create a callback function, see Creating and Executing Callback Functions.
The default value is an empty string.