Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 131)

9–9 Configuration: AUX and LCD Display Parameters
Publication 2755-833
Important: Host messages and Default Prompt Messages always
display in position 01. If host messages are expected, select starting
positions for other data that are greater than the length of these
messages to avoid conflicts.
Example 2
In Example 2, the LCD Display is enabled to display bar code data in
position 1 and decoder performance values in position 15.
Scrolling is enabled for the LCD Display, which means the display
operates as a 2 line display with 20 characters per line. Both lines
display characters in positions 1 - 20. With scrolling enabled, you
cannot display more than 20 characters per line at one time. Any data
you configure to display beyond position 20 will be truncated.
Enables LCD to display data.
Displays unformatted bar code data
Displays bar code data starting in position 1.
Displays decoder performance values at position 15.
Enables Scrolling
The LCD display will look like this for the above configuration. Line
2 displays the bar code data and the performance indicators.
123456 98 96
Bar Code Data
Performance Indicators
1
20
20
Scanner A Scanner B
1
Previous data
New data
When scrolling is enabled, all new data displays on the second line.
When the LCD receives new data, it will display on line 2, moving
the previous data up one line.
347861 97 98
1
20
20
1
Previous data moves up to line 1
New data displays on line 2
123456 98 96