Omron Programmable Terminals NT631C - Manual (Page 54)

37
Connecting a Bar Code Reader Section 3-4
Note Make sure that the power supply to the bar code reader and the power supply
to the PT are both OFF before connecting or disconnecting the cable.
3-4-1 Connection Method
Connect the bar code reader to serial port A of the NT631/NT631C, as shown
in the figure below.
Bar code reader must match the communications setting (3-4-2 Setting a Bar
Code Reader, page 37) and data format (3-4-3 Data Format, page 38) in
order to connect to the NT631/NT631C. Please confirm the specification of
the bar code reader before using.
For details on making a connector cable, refer to Appendix G Making the
Cable for Connection to a Bar Code Reader.
Reference: The bar code reader must be connected to serial port A. This means that it
cannot be connected at the same time as the Support Tool. Note also that
when a bar code reader is used, the host must be connected at serial port B.
3-4-2 Setting a Bar Code Reader
After connecting a bar code reader, set the communications conditions and
other settings for it by selection from the system menu.
Settings at the NT631/
NT631C At the NT631/NT631C, set the communications conditions for communica-
tions with the bar code reader by using the memory switches, selecting from
the options indicated in the table below.
For more detailed information on the actual system menu operations, refer to
6-10 Setting the Bar Code Reader Input Function.
Settings at the Bar Code
Reader Make the settings shown in the table below at the bar code reader. Make sure
that the communications speed, parity, stop bit, and data bit settings match
the communications settings made at the NT631/NT631C. For details on the
setting method, refer to the instruction manual for the bar code reader used.
+DC
RESET
RDA
TRM
RDB
SDA
SDB
CSA
CSB
24V PRINTER PORT B PORT A
NT631/NT631C
Bar code reader
9-pin connector
Connector cable Bar code reader cable
Serial port A
(RS-232C, 9-pin)
Item Possible Settings Default Setting
Data bits 7 or 8 bits 7 bits
Stop bit(s) 1 or 2 bits 2 bits
Parity None, odd, even Even
Communications speed 4800, 9600, 19200 bps 9600 bps
Input Method Manual, Auto Manual
Item Possible Settings
Communications speed 4800, 9600, 19200 bps
Parity EVEN, ODD, NONE
Stop bits 1 or 2 bits
Data bits 7 or 8 bits