Omron NT31 NT31C manual Connecting a Bar Code Reader, Setting a Bar Code Reader

Connecting a Bar Code Reader Section 3-4

3-4 Connecting a Bar Code Reader

Connecting a bar code reader to the NT31/NT31C enables bar code data to read as character strings into character string input fields, and set in character string memory tables.

In order to use a bar code reader, the Comm. A Method memory switch must be set to Bar-Code Reader.

For details on the method for inputting character strings with a bar code reader, refer to 3-7 Input of Numeric Values and Character Strings in the NT31/NT31C/ NT631/NT631C Programmable Terminal Reference Manual.

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 NT31/NT31C, as shown in the figure below.

NT31/NT31C

		Bar code reader
PRINTERPORT B	PORT A
9-pin connector	Serial port A
	(RS-232C, 9-pin)
	Connector cable	Bar code reader cable

Bar code reader must match the communication 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 NT31/NT31C. 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 (page 271).

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

Settings at the NT31/NT31C

After connecting a bar code reader, set the communication conditions and other settings for it by selection from the system menu.

At the NT31/NT31C, set the communication conditions for communication 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 (page 188).

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

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