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In message id 15 (NAV_ACC) in byte 14, bit 7, a flag named “Content valid” is contained. Can you please specify to which “content” is it referred to?

April 26, 2017bit byte FLAG Id message named

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In message id 15 (NAV_ACC) in byte 14, bit 7, a flag named “Content valid” is contained. Can you please specify to which “content” is it referred to?

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Bit 7 indicates that the content of the NAV_ACC message is valid. It is only valid if the kalman filter is running and the MIDG is in INS mode. For example, the NAV_ACC contents have no meaning if the MIDG is in vertical gyro (VG) mode. Bit 7 is a combination of all of the internal conditions required in order for the NAV_ACC values to be meaningful. It is included in this message so that you don’t have to do the tests on the contents of other messages externally (STATUS:Current Mode, etc) to conclude whether the data is meaningful.