Omron V440-F, Руководство пользователя

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4 Setup
4-38 V440-F C-Mount Code Reader User Manual
If the user wants to select and output just the QR Codes, they will set the Symbology type to QR Code
and set the number codes to two. Only the QR Codes will be shown as green in the image, and the
string will change from displaying all codes to just the QR Code.
Setting up Multiple Criteria with a Single Selection Rule
The user can further refine the selection criteria for which code to choose by setting additional fields.
For this example, if we want to differentiate between the two barcode tools, we can select Data to do
so. Whichever code contains the set data will be the one selected. Here we set it to find the QR Code
containing the substring “
microscan
”.
The rules for entering characters in the Data field are similar to those for entering characters in the
Match String Database. You simply use a combination of text, wildcards
(*
), and placeholders
(?)
to
denote the string.
Note:
Wildcard (*) rules. It the string is in the middle of the code, it must be set with wild cards at either
end (*
microscan
*). If the string is at the beginning, or is at the end of the decode data, we need to
leave off the leading or trailing *.
Ordering Using Multiple Selection Rules
The user can insert as many selection rules as there are codes to set the exact order of each and every
code if desired. Below we will show two examples for how to output all 6 codes in a defined order.
Note:
Ordering using
Selection Rules
override the
Global Sorting Option
.
Example 1
: For this example, the two QR Codes come out first followed by the other four codes. Here
we do not care about the order or the last four.