Basic LabView program to send and receive data for one sensor over TCP

This program involves two VIs, the Send.vi and Read.vi

Send.vi

• This program involves a TCP open connection node, two TCP write nodes, and a TCP close connection node
• All timeout values are set to -1 so it doesn't timeout
• The TCP open connection node is initialized with a PORT value
• The error and the connection are passed into the while loop, which iterates once per second
• Inside the loop, the program first attempts to receive a packet that is 1 byte in size (4 bits, 0-15)
• First, the thermometer data is converted to a string
• the length of the string is then converted to a string and is sent out preliminarily
• The thermometer string data is then sent out on the port
• This continues until the stop is called, at which time the connection is closed and any error is passed

Read.vi

• This program involves a TCP Listener node, two TCP read nodes, and a TCP close connection node
• All timeout values are set to -1 so it doesn't timeout
• The TCP listener node is initialized with a PORT value and with a blank string converted to an ip, which returns the local machine ip.
• The error and the connection are passed into the while loop, which iterates once per second
• Inside the loop, the program first attempts to receive a packet that is 1 byte in size (4 bits, 0-15)
• After the length data is received, the length is converted to an int and passed to the next receive node where the actual data is received
• The String is converted to a number and the thermometer is set to the value
• This continues until the stop is called, at which time the connection is closed and any error is passed