Omron V440-F, Руководство пользователя

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H-5
Appendices
V440-F C-Mount Code Reader User Manual
H-2
Sy
mbo
l Dat
a Outp
ut
H
H-
2-2 When to
Outp
ut Symbol Data
• Note:
More than one decode might in fact be required to qualify as a good read, depending on how
Decodes Before
Output
is set.
When set to
Disabled
, the symbol data output does not contain symbology information.
When set to
Enabled
, the symbol data output contains a three-character symbology identifier
sequence.
Only If All Good Reads
Definition: With
Only If All Good Reads
enabled, the reader outputs symbol data only
when all symbols in the read cycle are qualified.
No Read
is output if no
symbols are qualified.
H-2-2 When to Output Symbol Data
Definition: This command allows the user to choose when symbol data can be sent to the
host.
Serial Cmd: <
K705, symbol data output status, when to output, symbology identifier
status
>
Default: As Soon As Possible
Options: 0 = ASAP 1 = End of Read Cycle
As Soon As Possible
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.
End of Read Cycle
Usage:
End of Read Cycle
is useful in timing-based systems in which the host is not
ready to accept data at the time that 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.
H-2-3 Symbology Identifier Status
Serial Cmd: <
K705, symbol data output status,when to output ,symbology identifier
status
>
Default: Disabled
Options: 0 = Disabled 1 = Enabled
Disabled
Enabled
Read cycle duration
Start of read cycle
End of read cycle
This is when host
expects output
Host
activates trigger