Microscan MS-890, Руководство пользователя

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MS-890 Industrial Automation Scanner User Manual
6-5
I/O Parameters
When to Output Symbol Data
As Soon As Possible
End of Read Cycle
Note : See End of Read Cycle Mode on page 4-14 for options to end the read cycle.
Definition:
This command allows the user to choose when symbol data can be sent to
the host.
Serial Cmd: <
K705,
symbol output status,
when to output
>
Default: As Soon As Possible
Options:
0 = As Soon As Possible 1 = End of Read Cycle
Usage:
As Soon As Possible is useful in applications in which symbol data needs
to be moved quickly to the host, typically when the host is making decisions
based on symbol data.
Definition:
Enabling
As Soon As Possible
causes symbol data to be sent to the host
immediately after a symbol has been successfully decoded.
Note : More than one decode might in fact be required to qualify as a good
decode, depending on how Decodes Before Output is set.
Usage: End of Read Cycle is useful in timing-based systems in which the host is
not ready to accept data at the time it is decoded.
Definition:
Enabling End of Read Cycle means that symbol data does not get sent to
the host until the read cycle ends with a timeout or new trigger.
Read Cycle Timeout
Start of read cycle
End of read cycle
Host expects output
Host activates trigger
Read Cycle