| External Interfaces | |
Indicate if the serial port object is connected to the device
Description
Status can be open or closed. If Status is closed, the serial port object is not connected to the device. If Status is open, the serial port object is connected to the device.
Before you can write or read data, you must connect the serial port object to the device with the fopen function. You use the fclose function to disconnect a serial port object from the device.
Characteristics
| Read only |
Always |
| Data type |
String |
Values
{closed} |
The serial port object is not connected to the device. |
open |
The serial port object is connected to the device. |
Functions
| | RequestToSend | StopBits | |
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