
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
r
a
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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