Lrc Status - Microscan MS-890 User Manual

LRC Status

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 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 connected to the host port performs the
same addition and compares the results.
Serial Cmd: <K145,status>
Default:
Disabled
Options:
0 = Disabled
3-24
1 = Enabled
MS-890 Industrial Automation Scanner User Manual