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Troubleshooting
5-11
Samsung Electronics
5-2-9. Action when the Tracking Error
Check the condition of cable connection
Start
Yes
No
Is the cable connection of RS485 proper?
Yes
Less than 256 indoor units, 1 demand controller, Less
than 8 SIMs(When demand controller is connected,
less than 7 SIMs), Less than 8 DDCs.
Connect using less than 128 DDC connection points
or install additional BACnet Gateway.
Yes
No
Are the devices connected to BACnet Gateway
Satisfied with install limitation?
End
Check the polarity of RS485 cable
Yes
No
Is the polarity of RS485 cable correct?
Set the speed of centralized control unit
as 9600bps(Turn 4th dip switch off)
No
Is the speed of centralized control unit
set 9600bps?
BACnet Gateway_E_32400A(1)_1.indd 11
2010-05-17 �� 10:35:01