[Retracted] Green Building Design Based on 5G Network and Internet of Things System

Table 4

Serial port subplate selection node.

VI name	Function
Visa configuration serial port	Serial port initialization configuration
VISA write	Writes data from the buffer to the specified serial port
VISA read	Read the byte length of the specified length from the serial port to the buffer
Number of bytes of visa serial port	Returns the number of input buffer bytes of the specified serial port
Visa serial port interrupt	Send interrupt operation to the specified serial port
Visa set I/0 buffer size	Sets the size of the serial port IO buffer
Visa off	Close the serial port
Visa empties the I/O buffer	Clear serial port I/O buffer