Leica Geosystems TPS1100 Professional Series - User Manual - Manual (Page 109)

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TPS1100 - User Manual 2.2.1en Data format
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Data transmitted by instruments over
the GSI interface is composed of
blocks. Each one of these data
blocks is treated as a whole, and
ends with a terminator (CR, or CR
LF). There are two types of data
block:
1 Measurement blocks
2 Code blocks
Measurement blocks contain a point
number and measurement
information. They are designed
primarily for triangulation, traverse,
detail, and tacheometric surveys.
Code blocks are designed primarily
for recording identification codes,
data-processing codes and
information. However, they can also
be used for recording measurement
information such as instrument and
target heights, and tie distances.
Block concept
Each data block has a block
number. The block numbers start
with 1 and are incremented by 1 each
time that a new data block is stored.
Structure of a block
A data block consists of words, each
with 16 (24) characters. The
maximum number of words in the
TPS1100 is 12.