KVH Industries 1775 IMU User Manual

56-0298 Rev B
This document contains proprietary information of KVH Industries, Inc. and neither this document nor said proprietary information shall be
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Page 15 of 77
Table 5-3: Normal Operating Mode Message Format B
Item
Byte Numbers
Description
Header
1-4
Always 0xFE81FF56 (transmitted 0xFE first)
Message Data
5-36
(refer to Table 5-4)
CRC (Cyclic
Redundancy Check)
37-40
(refer to Table 5-9)
TOTAL
40
Table 5-4: Normal Operating Mode Data Format B
Datum
Byte Numbers
Data
Type*
Units
Notes
X rotational data
5, 6, 7, 8
SPFP
Radians or
degrees,
selectable
MSB (Byte 4) is output first;
delta angle or rate of
rotation, selectable
Y rotational data
9, 10, 11, 12
SPFP
Radians or
degrees,
selectable
MSB (Byte 8) is output first;
delta angle or rate of
rotation, selectable
Z rotational data
13, 14, 15, 16
SPFP
Radians or
degrees,
selectable
MSB (Byte 12) is output
first; delta angle or rate of
rotation, selectable
X Acceleration
17, 18, 19, 20
SPFP
g
MSB (Byte 16) is output first
Y Acceleration
21, 22, 23, 24
SPFP
g
MSB (Byte 20) is output first
Z Acceleration
25, 26, 27, 28
SPFP
g
MSB (Byte 24) is output first
Timestamp
29, 30, 31, 32
UINT32
Microseconds
MSB (Byte 28) is output first
Status
33
DISC
1 = valid data
0 = invalid data
(refer to Table 5-8)
Sequence number
34
UINT8
0-127
Increments for each
message and resets to 0
after 127
Temperature
35,36
INT16
°C, 1/100 °C,
°F, 1/100 °F,
selectable
* SPFP = Single Precision Floating Point (IEEE-754 Big-endian format); DISC = Discrete Data; UINT8 =
Unsigned 8-bit integer; INT16 = Signed 16-bit integer

KVH Industries 1775 IMU Specifications

General

Brand	KVH Industries
Model	1775 IMU
Category	Measuring Instruments
Language	English