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BACNET-GW-3 Installation and Operation Manual – P/N LS10014-000NF-E:C6 5/5/2017
Appendix C BACNET-GW-3 Equations
Equations for Object IDs (Instance Numbers)
In the BACNET-GW-3, each NFN node has 10,000 object IDs available to it. For each NFN node, multiply
its node number by 10,000 and add the offset calculated below based on what type of point it is. These
numbers define the 22 bits of the BACnet Object Identifier field.
Examples
• Node 15, L01D025 -> (15 x 10000) + ((1 - 1) x 1000) + (25 - 1) = 150024
• Node 201, L02M014 -> (201 x 10000) + ((2 - 1) x 1000) + (14 + 199) = 2011213
• Node 114, Annunciator 001 -> (114 x 10000) + (1 + 699) = 1140700
• Node 20, ZONE0002 -> (20 x 10000) + 1502 = 201502
Panel Node Number x 10000 = Base Panel Address
Generic Panel Points (MULTI_STATE_INPUT or LIFE_SAFETY_POINT)
506 = "PANEL"
507 = "RESET"
579 = "NETWORK_A"
580 = "NETWORK_B"
582 = "WALK TEST"
505 = "CPU"
500 = "GROUND"
502 = "BATTERY"
501 = "ACPOWER"
503 = "LOOP 1"
504 = "LOOP 2"
605 = "LOOP 3"
677 = "LOOP 4"
678 = "LOOP 5"
679 = "LOOP 6"
680 = "LOOP 7"
681 = "LOOP 8"
682 = "LOOP 9"
683 = "LOOP10"
SLC Devices (MULTI_STATE_INPUT or LIFE_SAFETY_POINT)
Detectors = ((Loop - 1) x 1000) + (Detector Address - 1)
Modules = ((Loop - 1) x 1000) + (Module A 199)