WATSON INDUSTRIES DMS-SGP02 Owner's Manual
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Watson Industries, Inc. DMS-SGP02 Rev K 03/22/201826Appendix CBinary Data FormatThe unit will output up to 6 words at 71.11 frames per second set at 9600 Baud. One word per output parameter.Example 1: The Unit is seeing these conditions:Binary output Format:7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0Data WordMSB LSBBit 7 of the Most Significant Byte (MSB) is set to 1. Bits 6 to 0 of the MSB are the upper 7 bits of the data. (sign plus 6bits of data)Bit 7 of the Least Significant Byte (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 thenconnected to the LSB as a 16 bit word. This word is then shifted left to shift out the 7th bit (always set to 1). Whatremains is a signed fractional word with a resolution of 13 bits plus a sign bit.To convert binary data: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):Bank Elevation Heading X angular rate Y angular rate Z angular rate15.0˚ -5.0˚ 315.0˚ 10.0˚/sec -15.0˚/sec 55.0˚/secWord1 Word2 Word3 Word4 Word5 Word6 |
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