WATSON INDUSTRIES DMS-SGP01, Owner'S Manual

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Watson Industries, Inc. DMS-SGP01 Rev B 03/22/2018
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Example 2: The Unit is seeing these conditions:
2) Binary output Format:
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Data Word
MSB LSB
Bit 7 of the MSB is set to 1. Bits 6 to 0 of the MSB are the upper 7 bits of the data. (sign plus 6 bits of data)
Bit 7 of the LSB is set to 1. Bits 6 to 0 of the LSB are the lower 7 bits of the data.
As the data words are received, the LSB is shifted left to shift out the 7th bit (always set to 1). The MSB is then
connected to the LSB as a 16 bit word. This word is then shifted left to shift out the 7th bit (always set to 1). What
remains is a signed fractional word with a resolution of 13 bits plus a sign bit.
To convert binary data:
Need split each word into two bytes:
Remove the most significant bit from each byte:
Shift lower byte left once (to remove 1 bit space between bytes):
X Acceleration Y Acceleration Z Acceleration X angular rate Y angular rate Z angular rate
0.00 g -0.28 g -0.96g 10.0˚/sec -15.0˚/sec 55.0˚/sec
Word1 Word2 Word3 Word4 Word5 Word6 <CR> byte
0x8080 0xFE9A 0xF9EE 0x8399 0xFB99 0x91CC 0x0D
X Accel Y Accel Z Accel X Rate Y Rate Z Rate
0x8080 0xFE9A 0xF9EE 0x8399 0xFB99 0x91CC
X Accel Y Accel Z Accel X Rate Y Rate Z Rate
0x80
0x80 0xFE
0x9A 0xF9
0xEE 0x83
0x99 0xFB
0x99 0x91
0xCC
X Accel Y Accel Z Accel X Rate Y Rate Z Rate
0x00
0x00 0x7E
0x1A 0x79
0x6E 0x03
0x19 0x7B
0x19 0x11
0x4C
X Accel Y Accel Z Accel X Rate Y Rate Z Rate
0x00
0x00 0x7E
0x34 0x79
0xDC 0x03
0x32 0x7B
0x32 0x11
0x98