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Multiple HGM’s Connected to a Building Automation System – Daisy Chain Fashion
RS-485 TERMINATOR “IN”
HGM300
UNIT 1
NODE 1
HGM300
UNIT 2
NODE 2
BUILDING
AUTOMATION
SYSTEM
HGM300
UNIT 4
NODE 4
HGM300
UNIT 3
NODE 3
TERMINATOR TERMINATOR TERMINATOR TERMINATOR
“OUT” “OUT” “OUT” “IN”
Node address may be set from ‘0” to “16” to allow building automation system to integrate the monitor
system into its system. (Note: Units set for address “0” and address “1” will both respond to address “1”
messages. Therefore, there should not be an address “1” and an address “0” unit on the same network.
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