10 Measuring with a Total Station
Reading station setup data from the total station
After you have performed a station establishment, the total station stores the information in its
memory, so that other controllers running the software can access it. Subsequent users can save
time by simply retrieving the station setup information from the total station’s memory without
resetting up at an arbitrary location or on a known control point.
Completing a station establishment where the height
of the setup point has not been determined
If the height of the total station has not been established at the end of the station establishment
process, the software prompts you to either enter a known height for the setup point or to a height
from a known benchmark location defined as a 1D or 3D point. This occurs when:
l
setting up at an arbitrary location, the reference control points measured were all 2D points.
l
setting up a known point, the known point and reference control points selected were all
defined as 2D points.
The benchmark point is measured in the same way as any other control point. It is used in
combination with the target height and instrument height to determine the setup point elevation.
Outputting data through the COM port
In some applications, it is useful to have the controller deliver the raw measurement data or the
computed coordinate data to the serial port of the controller, so that other software, for example
hydrographic positioning applications, can pick it up and use it.
To set up the COM port:
1. Connect to the SPS total station and complete a station establishment.
2. From the Home menu, tap Total Station and then tap Settings. The Total Stations Settings
dialog appears.
Trimble SCS900 Site Controller Software User Guide 97
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