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MS-4X Imager User Manual

5-13

Read Cycle

Start Trigger Character (Non-Delimited)

Important:

The ASCII characters

, and

can only be entered as hex pairs:

For <: <K229h,3C>

For >: <K229h,3E>

For

, : <K229h,2C>

See ASCII Character Entry Modifier for a detailed explanation of how to enter ASCII

characters as hex values.

Usage: Useful in applications where different characters are required to start a

read cycle.

Definition: A single ASCII host serial trigger character that starts the read cycle and is

not enclosed by delimiters such as < and >.

Non-delimited Start characters can be defined and will function according

to the trigger event.

When defining Start trigger characters, the following rules apply:

•In External Edge the imager looks only for the Start trigger characte

nd ignores any Stop trigger character that may be defined.

•In External Level the Start trigger character begins the read cycle and

the St

op trigger character ends it. Note that even after a symbol has

been decoded and the symbol data transmitted, the imager remains in

External Level trigger read cycle until a Stop character is received.

•In Serial Data or External Edge trigger mode, either a Start trigger

character or a hardware trigger can start an edge trigger read cycle.

Serial Cmd: <K229,start character>

Default: NUL (00 in hex) (disabled)

Options:

Two hex digits representing any ASCII character except

XON

and

XOFF

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