Moog Crossbow GNAV540 - Manual (Page 95)

NAV540 User Manual
0808‐01 Rev. B
Page 95 G
7430‐
Get Fields (‘GF’ = 0x4746)
Preamble Packet Type Length Payload Termination
0x5555 0x4746 1+numFields*4 <GF Data> <CRC (U2)>
The unit will send this packet in response to a get fields request if the command has completed without errors.
Table 76 GF Payload
GF Payload Contents
Byte Offset Name Format Scaling Units Description
0 numFields U1 — — The number of fields retrieved
1 field0 U2 — — The first field ID retrieved
3 field0Data U2 — — The first field ID’s data retrieved
5 field1 U2 — — The second field ID retrieved
7 field1Data U2 — — The second field ID’s data
… … U2 — — …
numFields*4 ‐3 field… U2 — — The last field ID retrieved
numFields*4 ‐1 field…Data U2 — — The last field ID’s data retrieved