STE 80722 
– 21 – 
Note 4) 
 
When an INPUT command is to be used to receive multiple variables transmitted as 
one text from the host computer, individual numerals should be separated in the text 
with commas. 
 
4.1.3  Clearing Communication Buffer 
 
If the number of data the controller has received is larger than the number of data 
specified by the INPUT command, such data are stored in the communication buffer 
and used at request of the next INPUT command.    If data is left in the 
communication buffer, unexpected data will reach by the INPUT command.    To 
clear the data left in the communication buffer, output character string 
"BUFFRESET" to relevant communication port. 
  Example) 
When clearing the communication buffer of the COM1 port: 
    PRINT 
  COM1, "BUFFRESET" 
  Example)   
When clearing the communication buffer of the IP1 port: 
    PRINT 
  IP1,“BUFFRESET”