Moog Crossbow GNAV540 - Manual (Page 87)

GNAV540 User Manual
7430‐0808‐01 Rev. B Page 87
pointing in the –Ux direction and the baseplate pointing in the +Uz direction. The user axis set is (X, Y, Z) as defined
by this field. An example of the factory axis set is shown below:
Figure 26 Orientation Fields
Table 56 Orientation Fields
Axis Bits Values
X Axis Sign 0 0 = positive, 1 = negative
X Axis 1:2 0 = Ux, 1 = Uy, 2 = Uz, 3 = N/A
Y Axis Sign 3 0 = positive, 1 = negative
Y Axis 4:5 0 = Uy, 1 = Uz, 2 = Ux, 3 = N/A
Z Axis Sign 6 0 = positive, 1 = negative
Z Axis 7:8 0 = Uz, 1 = Ux, 2 = Uy, 3 = N/A
Reserved 9:15 N/A
There are 24 possible orientation configurations. Setting/Writing the field to anything else generates a NAK and has
no effect.
Table 57 Orientation Field Values
Orientation Field Value X Axis Y Ax is Z Axis
0x0000 +Ux +Uy +Uz
0x0009 ‐Ux ‐Uy +Uz
0x0023 ‐Uy +Ux +Uz
0x002A +Uy ‐Ux +Uz
0x0041 ‐Ux +Uy ‐Uz
0x0048 +Ux ‐Uy ‐Uz
0x0062 +Uy +Ux ‐Uz
0x006B ‐Uy ‐Ux ‐Uz
0x0085 ‐Uz +Uy +Ux
0x008C +Uz ‐Uy +Ux
0x0092 +Uy +Uz +Ux