Filter
Top Products
34
Data Editing Formulas
The set of instructions programmed into the Omni to edit the data
record is referred to as the data editing “formula.” More than one
formula can be resident in the reader at one time. If more than one
formula resides in memory, the reader will apply the first formula to the
input data. If the scanned data matches the format (credit card, driver’s
license, etc.) of the first formula, then it will apply the data editing
functions and output the reformatted data to the host. If the data does
not match the criteria spelled out in the first formula, then the criteria of
the second formula is applied. This process continues for each of the
successive formulas until a match is found. If no matches are found to
any of the formulas programmed into the reader, then either nothing will
be transmitted to the host, unless the “Send Unmatched” mode is
enabled, in which case the input data will be transmitted in its original
format.
The number of formulas that can be entered into the Omni is limited by
the amount of memory available. Caution should be used when entering
a number of long formulas as the amount of non-volatile memory
available for formula storage is very limited. In this case, the last
programmed formula(s) will be valid until the unit is powered off and
then it will be lost.
35
The Formula Sequence
A basic data editing formula for the Omni has the following structure.
(The optional commands are enclosed in brackets):
CODE ID [LENGTH][MATCH]DIVIDE[ADD]SEND
In other words:
1. Identify the bar code symbologies to which this formula will apply.
2. Specify length parameters (if desired).
3. Specify the characters (if any) you would like to match.
4. Indicate how you want to divide the data record.
5. Add a character string (if desired).
6. Send the edited data record to the host computer.
Multiple conditions may be programmed for each major group of
commands (i.e. several code IDs can be used following the CODE ID
command), but all like commands must be grouped together. For
example, several ADD commands can be programmed, but all of them
must be grouped together and placed prior to the SEND command.
Note: If Function Codes are to be used with any of the commands, the Function
Code capability must be enabled by typing B7<ENTER>A<ENTER> before
entering the Data Editing Setup mode.