Output Filter Configuration - Omron V440-F User Manual

N-6 Output Filter Configuration
Output filtering is a method of providing a set of good read qualifiers and also providing
Definition:
ordered output. There is a filter for up to the first 10 positions in a multisymbol output.
The first filter corresponds to the first symbol output at the end of the read cycle. Each
filter has settings for the following four parameters: Symbology, Symbol Length, Data,
and Configuration Database Number.
Serial Cmd: <K744,filter number,symbology,length,wildcard,placeholder,data,unused,database
index,tray ID,matrix index>
N-6-1 Rules for Output Filter Configuration
Output Filter Configuration Rule # 1
Each symbol that is decoded must match one of the filters before it can be saved to a read cycle record.
There is an exception to this rule, however, when the number of symbols required for a read cycle
exceeds the number of active filters. In such a case, unfiltered symbols can be placed into unfiltered
output positions.
For example, if the number of symbols required is 6 but there are only 4 active filters, the last 2 positions
can be filled by any (unfiltered) qualified symbol.
Output Filter Configuration Rule # 2
The same filter setup can be used multiple times.
For example, filters 1, 2, and 3 can be set up to filter Data Matrix symbols, and the output will occur in
the order the symbols are decoded.
Output Filter Configuration Rule # 3
All qualified symbols will be sorted and output in the matching filter position. If a symbol matches filter 3,
it will be output as the third symbol. If a filter does not have a matching qualified symbol, a No-Read
message will be output in place of the symbol (assuming the No-Read message is enabled).
For example, if there is not a symbol that meets filter 3's requirements, then a No-Read message will be
output in the third output position.
N-6-2 Filter Number
This is the filter index number that represents the position of the symbol in the data
Definition:
output at the end of the read cycle. This index number should be entered along with the
following filter settings for the predetermined symbol position.
Serial Cmd: <K744,filter number,symbology,length,wildcard,placeholder,data,unused,database
indextray ID,matrix index>
1 to 400
Options:
N-6-3 Placeholder
The placeholder character requires a character to be present, but does not compare the
Definition:
data value.
Serial Cmd: <K744,filter number,symbology,length,wildcard,placeholder,data,unused,database
indextray ID,matrix index>
" ? " = 3F (hex)
Default:
Any ASCII input in the form of a pair of hex characters.
Options:
Example:
3F = ?
00 = disabled
V440-F C-Mount Code Reader User Manual
Appendices
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