A
PPENDIX
A: S
ERIAL
I
NTERFACE
S
PECIFICATIONS
Electronic Copy of LTI’s UltraLyte User’s Manual – 7
th
Edition June 1998
65
vd
is vertical distance (null for a UL100).
du
specifies distance units. Legal values
are F (feet) and M (meters).
au
specifies angle units. Legal values are D
(degrees) and G (gradients). In a
UL100, this field contains the factory
default angle units indicator even though
the inclination is null.
*cs
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.
<CR>
is a carriage return.
If a measurement error occurs, the message
downloads null values for the measurements
that failed.
Example Survey Messages
UL100 (English units):
$BM,27.5, , , , ,F,D*E6
UL100 (Metric units):
$BM,8.38, , , , ,M,G*D7
UL200 (English units):
$BM,27.5,34.8, ,22.6,15.7,F,D*86
UL200 (Metric units):
$BM,8.38,38.7, ,6.9,4.8,M,G*D0
Criterion Download Format
Version ID Requests
When the serial format is set to
20.20.Cr,
the
instrument accepts Criterion-format requests for
the firmware version ID. The request message
must be in the following format:
For Internal Use Only. Not for Distribution.
Summary of Contents for UltraLyte
Page 1: ...For Internal Use Only Not for Distribution...
Page 70: ......
