beautypg.com

Opticon LMD 1135 User Manual

Page 16

background image

Manual No. 25-ULPNR102-01; Mar, 2005 LMD 1135 Laser Fixed Mount Scanner

Page 12

Tips for Verifying the Presence of a Bar Code

If the scanner is operated in the “trigger enabled” mode and the trigger is activated, one of three

conditions may occur:

A bar code is scanned and decoded.

Decoded data is
transmitted

A bar code is scanned but is not decoded
(e.g., print quality was poor)

No data is transmitted

No bar code is present

No data is transmitted

In some applications, when no data is transmitted, it may be important to know why. Was there a bar

code present that could not be decoded, or was no bar code present at all?

This requirement is common in applications such as automated blood analysis equipment. Test tubes

containing blood samples from many different people are loaded into a rack for automatic analysis. The

bar code on each tube ties that sample and the results back to a specific individual. If no bar code data

is transmitted it is critical to understand the reason.
Your Opticon scanner, when operated in the Trigger Enabled mode, can be programmed to transmit an

error message indicating whether or not a bar code was present. See Section 33 of Appendix C of this

manual for details.