Omron V440-F, Руководство пользователя

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G-13
Appendices
V440-F C-Mount Code Reader User Manual
G-
9 Int
erleaved
2 of
5
G
G-9-
1 Check
Character
Status (
Inter
leaved 2 of 5
)
G-9 Interleaved 2 of 5
Usage:
I-2/5 has been popular because it is the most dense symbology for printing
numeric characters less than 10 characters in length; however, Omron
Microscan does not recommend this symbology for any new applications
because of inherent problems such as truncation.
Definition:
A dense, continuous, self-checking, numeric symbology. Characters are
paired together so that each character has five elements, two wide and
three narrow, representing numbers 0 through 9, with the bars representing
the first character and the interleaved spaces representing the second
character. (A check character is highly recommended).
Important:
You must set Symbol Length in order to decode I-2/5 symbols,
unless
Range Mode
is enabled.
Serial Cmd:
<
K472, status ,check character status,check character output status,symbol
length #1,symbol length #2,guard bar status,range mode status
>
Default: Enabled
Options:
0 = Disabled
1 = Enabled
G-9-1 Check Character Status (Interleaved 2 of 5)
Usage:
This option is not typically used, but it can be enabled for additional security
in applications where the host requires redundant check character verifica-
tion.
Definition:
An error correcting routine in which the check character is added.
Serial Cmd:
<
K472, status, check character status ,check character output status,symbol
length #1,symbol length #2,guard bar status,range mode status>
Default: Disabled
Options: 0 = Disabled
1 = Enabled
G-9-2 Check Output Status (Interleaved 2 of 5)
Definition:
When enabled, a check character is sent along with the symbol data for
added data security.
Serial Cmd:
<
K472, status,check character status, check character output status ,sym-
bol length #1,symbol length #2,guard bar status,range mode status
>
Default: Disabled
Options: 0 = Disabled
1 = Enabled
G-9-3 Symbol Length #1 (Interleaved 2 of 5)
Usage:
Useful in applications where I 2/5 symbols of a specific length are
required.
Definition:
The
Symbol Length # 1
field is one of two fields against which the
decoded symbol is compared before accepting it as valid or rejecting it.
Serial Cmd:
<
K472, status,check character status,check character output, symbol length
#1 ,symbol length #2,guard bar status,range mode status
>
Default: 16
Options:
0 to 64, even only
Important:
If
Range Mode
is disabled, the length of the symbol must
match either
Symbol Length # 1 or Symbol Length # 2
to be considered
a valid symbol.
If
Range Mode
is enabled,
Symbol Length # 1
and
Symbol Length # 2
form a range into which the length of the symbol must fall to be considered
valid.