Microscan MS-4Xi, User Manual, Page: 303 / 360

MS-4Xi Imager User’s Manual
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Utilities
Learn Operations
Learn
Sending the <LEARN> command from ESP’s Terminal will put the imager into a mode of
operation that will cause it to “learn” the next Data Matrix symbol decoded. This mode of
operation will remain active until either a Data Matrix symbol is decoded or the call is
made to disable the mode and revert back to normal operation. Upon decoding a Data
Matrix symbol, the image processing will save pertinent information regarding the target
symbol to allow it to be processed more quickly and consistently.
The data collected by the Learn operation can be saved for a Power-On condition by
sending the <Z> command.
Unlearn
Sending the <UNLEARN> command will cause the imager to discard any information
acquired during a Learn operation.
The Unlearn state can be saved for a Power-On condition by sending the
<Z> command.
Learn Status
Sending the <LEARN?> request will return the current status of Learn operations.
Responses are sent in this format:
<LEARN,0> (Default; symbol has not been learned.)
<LEARN,1> (Learn operation in progress.)
<LEARN,2> (Symbol has been learned.)
Learn Persistence
The learn state and parameters persist in the same way as ordinary parameters.
Examples:
• A MS-4Xi in a Learned state has not been saved. Cycling power will remove any
Learned state information and the imager will power-on in its configured state.
• A MS-4Xi is saved in a Learning state. The imager will power-on in the Learning state
and will learn the first Data Matrix symbol decoded.
• A MS-4Xi is saved in a Learned state. The imager will power-on in the Learned state
and will only decode the learned symbol type.
• A MS-4Xi in a Learned state is issued a reset default command <Ard> . The unit will
return to an Unlearned state but if power is cycled it will return to its saved state.