OXTS RT3000 - Page 121

RT User Manual
Revision: 190731
123
Offset
(bits)
Offset
(bits)
Length
(bits)
Length
(bits)
Type
Type
Units
Units
Factor
Factor
Offset
Offset
Table 61. Identifier 62Fh (1583), PosLocalNE
0 32 S m 0.0001 0 Northing PosLocalNorth
Table 62. Identifier 630h (1584), MilliTime
0 48 S ms 1 0
Milliseconds since the
start of GPS time
MilliTime
48 8 S s 1 0 GPS UTC offset UtcOffset
Note: MilliTime and MilliTimeSeonds both refer to the same bits on the CAN bus—however they are
decoded twice with a different scale in the DBC file. MilliTime needs to be stored as a signed 64-bit integer
value as the current value already exceeds the limits of a 32-bit integer, however this is not supported by
all CAN software. To overcome that problem MilliTimeSeconds can be stored as a 32-bit double-precision
value, however limitations in the double-precision format mean there may be an error of up to 5 ms and
the resulting decimal numbers may contain rounding errors. Where possible MilliTime should be used,
otherwise use MilliTimeSeconds with care.
Table 63. Identifier 633h (1587), IsoOrientation
0 16 S ° 0.01 0 ISO 8855 yaw angle IsoYawAngle
32 16 S ° 0.01 0 ISO 8855 roll angle IsoRollAngle
Table 64. Identifier 634h (1588), IsoVsVelocity
0 16 S m/s 0.01 0
ISO 8855 vehicle
system longitudinal
IsoVsLongitudinalVelocity
32
32
0.0001
0 Easting
PosLocalEast
Description Signal name
48
0.001
Seconds since the start
of GPS time
MilliTimeSeconds
16
16
0.01
0 ISO 8855 pitch angle
IsoPitchAngle
Description Signal name
Description Signal name
Description Signal name
Offset
(bits)
Offset
(bits)
Length
(bits)
Length
(bits)
Type
Type
Units
Units
Factor
Factor
Offset
Offset