A
PPENDIX
A: S
ERIAL
I
NTERFACE
S
PECIFICATIONS
Electronic Copy of LTI’s UltraLyte User’s Manual – 7
th
Edition June 1998
63
versionid
is the version number of the
instrument’s internal software.
*
csum
is an asterisk followed by a hexadecimal
checksum. The checksum is the result
of a complemented, no-carry, binary
addition of all the characters between
the dollar sign and the asterisk.
If the first character of the query message is not
“$,” there is no response. If the request identifier
is not “$ID,” the instrument returns “$ERR.”
Example Version ID Messages
Query:
$ID
Response:
$ID,UL100,1.70*22
Speed/Range Data Message Format
A speed and range measurement downloaded in
UltraLyte format is in this general form:
$SP,
speed
,
range
,
sunits
,
runits
*
c
s
um
<CR>
where:
$SP
is the message identifier.
speed
is the measured speed.
range
is the measured range (in whole feet or
tenths of meters).
sunits
specifies the speed units. Legal values:
M=Miles per hour
K=Kilometers per hour
C=Centimeters per second
runits
specifies the range units. Legal values
are F (feet) and M (meters).
For Internal Use Only. Not for Distribution.
Summary of Contents for UL100
Page 1: ...For Internal Use Only Not for Distribution...
Page 70: ......
