Furuno VR-3000 Operator's Manual page 44

TRD - Thruster response data
This sentence provides the response data for thruster devices.
$xxTRD, x, x.x, A, x.x, A, x.x, *hh<cr><lf>
0 1 2 3 4
0) Header
1) Number of thrusters
Odd = Bow thruster
Even = Stern thruster
2) RPM demand
3) Data status
R = relative (%): 0-100% from zero to maximum rpm
T = true (deg) V = data invalid
4) Pitch response value
"-" port
5) Data status
R = relative (%)
T = True (deg)
V = Data invalid
6) Azimuth demand
Direction of thrust in degrees (0 deg - 360 deg)
for thrusters capable of rotating direction of thrust
7) Checksum
VBW - Dual ground/water speed: This sentence to be expanded as shown below:
$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh<CR><LF>
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | +----------------- 6
| | | | +-------------------- 5
| | | +------------------------ 4
| | +--------------------------- 3
| +------------------------------ 2
+---------------------------------- 1
1. Longitudial water speed, knots
2. Transverse water speed, knots
3. Status: water speed, A=data valid V=data invalid
4. Longitudial ground speed, knots
5. Transverse ground speed, knots
6. Status: ground speed, A=data valid V=data invalid
7. Stern transverse water speed, knots
8. Status: stern water speed, A=data valid V=data invalid
9. Stern transverse ground speed, knots
10. Status: stern ground speed, A=data valid V=data invalid
11. Checksum
34
5 6 7
| | | | |
| | | | +--- 11
| | | +----- 10
| | +-------- 9
| +----------- 8
+-------------- 7