3-4 Connecting to Bar Code Readers 
3-4  Connecting to Bar Code Readers 
 
Connecting a Bar Code Reader to the PT allows bar code data to be read as character 
strings in the character string input areas. 
For details on methods for inputting character strings from a Bar Code Reader, refer to 3-6 
Inputting Numeral and Character Strings in the Programming Manual. 
3-4-1 Connection Methods 
Connect the Bar Code Reader to either serial port A or B of the PT as shown in the following 
diagram. 
 
 
PT 
Bar Code Reader 
9-pin connector
Serial port A or B 
(RS-232C, 9-pin) 
Connecting cable  Bar Code Reader cable 
 
Note  Always turn OFF the power to the Bar Code Reader and the PT before connecting or discon-
necting cables. 
 
Prepare the connecting cables, referring to Appendix 8 Preparing Connecting Cables for Bar 
Code Readers.  
 
Reference
  Bar Code Readers cannot be connected to both serial ports A and B at the same time. 
3-14