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Creating an ascii entry display – Rockwell Automation 2707-NP DTAM Programming Software User Manual

Page 146

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Chapter 18

DTAM Plus ASCII Bar Code Input

18–2

A bar code entry display is a standard data entry display with ASCII Bar
Code Scanner set as the data format. Refer to Chapter 8 for a description of
how to create a data entry display. These are the options you have when
defining the data entry field.

SLC or PLC

depending upon protocol.

Format Selection

Description

Register Number

The controller data address to be written.

Character Count

The number of characters (1 to 32) that are expected for each entry.
The DTAM sends the data to the controller after receiving the
specified character count.

Enter/CR Enabled (Y or N)

Determines when the ASCII data is sent to the controller.

If Y is selected, data is sent to the controller when one of the
following occurs.:

1. The DTAM receives the the number of characters specified in

the character count

2. Operator presses the Enter key.

3. A carriage return character (ASCII 13) character is received.

If N is selected, data is sent to the controller when the DTAM
receives the number of characters specified in the character count.

Send Scanner ID (Y or N)

Specifies whether or not the scanner ID is included as part of the
message sent to the controller. The scanner ID is a 2 character
ASCII designation that identifies the ASCII string from each scanner.

Keypad Entry (Y or N)

Enables or disables the ability of the operator to enter data using the
DTAM keypad.

XON/XOFF Handshake

(Y or N)

Enables or disables XON/XOFF flow control between the bar code
scanner and the DTAM.

Creating an ASCII
Entry Display