Cognex DMA-EZCCM-001, Руководство пользователя

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Soft Events
Soft events let the user access the advanced functionality of the reader through special commands that allow access to
internal data and parameters of the readers:
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Train Code – triggers the reader and trains the read code;
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Train Match String – triggers the reader and assigns the read code for Match string validation
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Focus – sets the reader through a focus adjustment sequence
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Train Brightness -sets the reader through a brightness adjustment sequence
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Untrain – disables the current trained code
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Set Input String – configures the input string for the serial
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Execute DMCC – sends a DMCC command to the reader
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Set Match String - configures the match string
The last 3 commands use the User data block and details and the following need to be set:
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User Data Option - Currently only used by “Set Match String” soft event. Specifies which code target to assign the
string
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1: DataMatrix
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2: QR Code/MaxiCode/AztecCode
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3: Linear/ Postal/ Stacked
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4: VeriCode®
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5: DotCode
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User Data Length – Size of data in the User Data
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User Data – necessary data to be send
Set Match String Example
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Select User Data Option e.g. 1
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Set User Data Length e.g. 6
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Write in User Data the Match String you want to use eg. ABC123
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Trigger soft event
Execute DMCC
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Set User Data Length e.g. 23
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Write Command in User Data like in command reference manual eg. GET DVALID.MATCH-STRING
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Trigger soft event
Set Input String Example
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Enable Input String with DMCC command e.g. SET INPUT-STRING.ENABLE ON
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Set Input String Footer with DMCC command e.g. SET INPUT-STRING.FOOTER <ETX>
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Set Input String Header with DMCC command e.g. SET INPUT-STRING.HEADER <STX>
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Set User Data Length e.g. 28
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Getting Started