Section 7 - Serial Data Interface
Page 25
Impulse Settings
When an Impulse laser is connected to the Laser Port, the Data Port echoes out
any serial data strings that come in from the laser.
1. Set Auto Download to ON.
2. Set the download format to CR400. The RD 1000 cannot
communicate with the Impulse in the Impulse native data format.
3. Select the measurement mode: HD or VD.
TruPulse Settings
When a TruPulse laser is connected to the Laser Port, the Data Port echoes out
any serial data strings that come in from the laser.
1. Select the measurement mode: HD or VD.
Input Data String
The RD 1000 only responds to an incoming CR400 data string that contains a
horizontal distance value (horizontal vector data string). For more information
about this data string, refer to the user’s manual that shipped with your LTI laser.
Output Data String
The RD 1000 generates and outputs two data strings, Horizontal Vector
(HV message type) and Tree Diameter (DA message type). Measurement results
may be downloaded in the following situations:
•
Diameter result
•
Height/Diameter result
•
Locked raw inclination value measured in Percent Slope
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If your Impulse is Revision 1.43 or newer, determine if you want the
Impulse to automatically output valid measurements only, or to output
data strings that may contain null data from error conditions, by using
the Err system setting. You need only be concerned with the Err setting
if you are using the Impulse in automatic download mode. If you need
more information about Impulse revision number or the Err system
setting, refer to the user’s manual that shipped with your Impulse.
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The CR400 serial data string is automatically downloaded once a shot is
taken.