WATSON INDUSTRIES DMS-EGP01 Owner's Manual page 7

3. A six character string representing the elevation angle starting with a "+" or a "-", followed
by two digits, a decimal point, one digit and a space for up to ±89.9 degrees.
4. A six character string representing the heading angle by three digits, a decimal point, one
digit and a space for zero to 359.9 degrees.
5. A six character string representing the X axis angular rate starting with a "+" or a "-",
followed by two digits, a decimal point, one digit and a space for up to ±99.9
degrees/second.
6. A six character string representing the Y axis angular rate starting with a "+" or a "-",
followed by two digits, a decimal point, one digit and a space for up to ±99.9
degrees/second.
7. A six character string representing the Z axis angular rate starting with a "+" or a "-",
followed by two digits, a decimal point, one digit and a space for up to ±99.9
degrees/second.
8. A seven character string representing the Forward Velocity starting with a "+" or a "-",
followed by three digits, a decimal point, one digit and a space for up to ±399.9 Km/Hr.
9. The string is terminated by a carriage return. There will then be a short interval with no
data transmission before the next string begins.
Example:
G +002.5
↑
Bank
angle
(1) (2)
space space
The string transmission rate can be improved by reducing the amount of information (data items)
transmitted. The data items transmitted can be changed by using special commands to modify the
EEPROM of the unit (see Appendix A). In addition, more channels are available for output (see
Appendix A).
The system is protected from inadvertent write-over of the EEPROM by requiring two spacebar
commands during the initialization interval to access the EEPROM or related functions.
The baud rate may be changed from the nominal value of 9600 baud by modifying the default
value in the EEPROM of the unit to 38.4K, 19.2K, or 4800 baud. Please note that the Baud Rate
must be 9600 when using the GPS module.
A text header is sent by the DMS during initializations that identifies the unit by part number and
by serial number and gives the date of last calibration. Additionally, a line of text characters that
identifies the data channel columns is sent if the serial output is set to ASCII decimal. This whole
message can be temporarily or permanently suppressed or restored by a "*" command from the
interfacing computer.
Data transmission sent by the DMS can also be suppressed or restored by a "+" command from the
interfacing computer.
Watson Industries, Inc.
-05.0 273.4 -00.4
↑ ↑ ↑
elev. Head. X axis
angle angle
(3) (4)
space space
7
+01.2 +10.4
↑ ↑
Y axis Z axis
rate rate
(5) (6)
space space
DMS-EGP01 Rev A 02/12/2015
+017.3 <CR>
↑
Forward
rate Velocity
(9)
(7) (8)
space