Fastnet Node numbers
All data on the fastnet bus is sent from a node adress, and possibly send to a node (or to all nodes through the 0xFF broadcast address)
Collective addresses (hex)
FA All 20/20s
FB All Halcyon FFDs
FC All Pilot FFDs
FD All Processor Nodes
FE All FFDs
FF Entire System
Individual addresses (hex, decimal, description)
01 01 Normal CPU (depth board in H2000)
05 05 Normal CPU (wind board in H2000)
09 09 Performance processor
0D 13 Expansion unit (0D to 0F)
0F 15 Halcyon Gyro through Gyro processor
10 16 Halcyon 2000 Compass connected directly to FastNet bus
12 18 Halcyon Gyro-Stabilised Compass connected to Pilot ACP (sometimes also 11 hex)
20 32 FFD's (20 to 2F)
30 48 Halcyon FFD's (30 to 3F)
40 64 Display 20/20 (40 to 4F)
50 80 Pilot FFD (50 to 5F)
60 96 External compass interfaced via NMEA FFD (60 to 6F)
112 274 Load cell amplifiers (112 to 127 hex)
128 296 Tank level sensor