You're reading the documentation for an older, but still supported version (1.33.4).
For information on the latest version, please have a look at 1.33.5.

flange_serial_close

This function closes the flange serial transfer port in the robot controller.

Definition
DRFLEx.h within class CDRFLEx, public section

bool flange_serial_close(int nPort)
{
    return _flange_serial_close(_rbtCtrl, nPort);
};

Parameter

Parameter Name	Data Type	Default Value	Description
nPort	int		Serial port index 1: X1, 2: X2 (X2 only on M/H models)

Return

Value	Description
0	Error: failed to close serial port.
1	Success: serial port successfully closed.

Note

The flange board revision used by the flange serial and flange I/O functions is read at open_connection.

Example

char buf[] = "test123";
Drfl.flange_serial_open(1, 115200);
Drfl.flange_serial_write(7, buf, 1);

LPFLANGE_SER_RXD_INFO_EX temp = Drfl.flange_serial_read(4.5, 1);
printf("Serial read : %.*s\n", temp->_iSize, (const char*)temp->_cRxd);
printf("Serial cnt  : %d\n", temp->_iSize);

Drfl.flange_serial_close(1);

This example first opens the flange serial port, sends test data, reads incoming data using flange_serial_read(), and finally closes the connection using flange_serial_close() to safely release the port resource.