Bewis Sensing Technology LLC www.bwsensing.com Tel
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+86 18921292620
BW-IMU720
Small-size three-axis fiber optic
Gyroscope inertial measurement unit
Byte
Name
Value
Transmission Type
0
Frame header
byte 1
OxAA
uchar
1
Frame header
byte 2
OxAA
uchar
2
Data sent count 1~200
uchar
3
Self-check byte 255
uchar
4~7
X-axis gyro
32bit low in the front, high in the
back
signed int32
8~11
Y-axis gyro
32bit
low in the front, high in the
back
signed int32
12~15
Z-axis gyro
32bit
low in the front, high in the
back
signed int32
16~19
X-axis
accelerometer
32bit
low in the front, high in the
back
float
20~23
Y-axis
accelerometer
32bit
low in the front, high in the
back
float
24~27
Z-axis
accelerometer
32bit
low in the front, high in the
back
float
28,29
X-axis gyro
temperature
16bit
low in the front, high in the
back
1/16
signed int16
30,31
Y-axis gyro
temperature
16bit
low in the front, high in the
back
1/16
signed int16
32,33
Z-axis gyro
temperature
16bit
low in the front, high in the
back
1/16
signed int16
34,35
X-axis
accelerometer
temperature
16bit
low in the front, high in the
back
1/16
signed int16
36,37
Y-axis
accelerometer
temperature
16bit
low in the front, high in the
back
1/16
signed int16
38,39
Z-axis
accelerometer
temperature
16bit
low in the front, high in the
back
1/16
signed int16
40
Checksum
4~39 byte XOR
uchar
41
Frame end
OxBB
uchar
Protocol
1) Two-way communication, the request signal is 3.3V, LVTTL level, the falling edge is valid
(the falling edge represents the sampling time), the falling edge is input within 50us, and
the serial port signal is sent, which conforms to the RS-422 interface standard;
2) Data refresh rate 200Hz, baud rate 460.8Kbps; (customizable)
3) 8 data bits, 1 stop bit, no parity bit;
4) Data transmission format:
