Rockwell Automation 2755 Hand-Held Cordless Bar Code Scanners - Manual (Page 52)

Chapter
2
Publication 2755-6.6
Advanced Data Format Bar
Codes
This chapter explains what Advanced Data Format (ADF) is and lists
the bar codes you can use with the standard range and long range
scanners (Catalog Nos. 2755-HCG-4 and 2755-HCG-7). The
following table lists the bar code categories within this chapter.
Parameter Page Location
Criteria 2–4
Special Commands 2–10
Actions 2–11
Numeric Keypad 2–52
Alphanumeric Keypad 2–54
ADF Overview
ADF allows you to customize input before it is transmitted to your
host device. For example, instead of having a direct read of a bar
code, you can now attach a message to it. ADF is implemented with
a series of bar codes that have selectable parameters. (You do not
have to type in the individual characters for your message but rather
scan in the appropriate bar code located in this chapter.) This series
of bar codes is called a Rule and is used to evaluate input from the
scanner. Rules are comprised of Criteria and Actions. Criteria are
composed of an Input Source, Code Type, and Code Length.
Actions are composed of Send Data, Send Keystroke, Setup Pause,
and Send Preset Value. Criteria, Actions, and entire Rules may be
erased by scanning the appropriate bar code.