Lrc Status - Microscan MS-860 User Manual

LRC Status

(Longitudinal Redundancy Check)
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 transmissions are cumu-
latively 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 connected to the host port performs the same addition and
compares the results.
Serial Cmd: <K145,status>
Default: Disabled
Options: 0 = Disabled
MS-860 Industrial Raster Reader User's Manual
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1 = Enabled
Communications
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