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Communication
LRC Status
Used when extra data integrity is required.
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.
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QX Hawk Industrial Imager User's Manual
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