D-17
Appendices
V440-F C-Mount Code Reader User Manual
D-10
LRC (
L
o
ngi
tud
inal R
edu
nda
ncy Ch
eck)
S
tatu
s
D
D
-8-6
TCP Port
2
D-10 LRC (Longitudinal Redundancy
Check) Status
Usage:
Used when extra data integrity is required.
Definition:
An error-checking routine that verifies the accuracy of transmissions. It is
the exclusive OR of all characters following the
STX
(start of text) up to and
including the
ETX
(end of text). What this means is that the binary representation
of all the characters in a transmission are cumulatively added in a column
and each resulting odd integer is assigned a 1 and each even integer a 0
(two 1s = 0, two 0s = 0, a 1 and a 0 = 1). The extra LRC character is then
appended to the transmission, and the receiver (usually the host) performs
the same addition and compares the results.
Serial Cmd:
<
K145,
status
>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Содержание V440-F
Страница 1: ...Z452 E 01 84 9000440 02 Rev A V440 F C Mount Code Reader User Manual...
Страница 31: ...1 Overview of WebLink Interface 1 16 V440 F C Mount Code Reader User Manual...
Страница 37: ...2 Quick Start 2 6 V440 F C Mount Code Reader User Manual V440 F Lens Selection Based on Focal Length...
Страница 139: ...4 Setup 4 76 V440 F C Mount Code Reader User Manual...
Страница 151: ...6 Application Settings 6 4 V440 F C Mount Code Reader User Manual 6 3 New New opens a new WebLink session...
Страница 183: ...7 Terminal 7 6 V440 F C Mount Code Reader User Manual...
Страница 224: ...A 3 Appendices V440 F C Mount Code Reader User Manual A V440 F Cable and Accessory Specifications...
Страница 225: ...Appendices A 4 V440 F C Mount Code Reader User Manual V440 F Cable and Accessory Specifications continued...
Страница 239: ...Appendices A 18 V440 F C Mount Code Reader User Manual M12 to RS 232 Breakout 1 Meter or 3 Meters V430 WR 1M V430 WR 3M...
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