Microprocessor Controller for DOAS
41
Appendix E: Points List
BACnet
Object
Modbus
Register
Description
Analog Inputs - Read COV/No Write - Modbus Input Registers (Size)
AI-3
30199(2)
Circuit A Suction Temperature
AI-4
30201(2)
Circuit B Discharge Temperature
AI-6
30205(2)
Circuit B Suction Temperature
AI-25
30243(2)
Cold Coil 1 Temperature
AI-30
30253(2)
Exhaust Temperature
AI-35
30263(2)
Mixed Temperature
AI-37
30267(2)
Outside Air Temperature
AI-41
30275(2)
Return Temperature
AI-44
30281(2)
Space Temperature
AI-45
30283(2)
Supply Temperature
AI-86
30349(2)
Outside % Relative Humidity
AI-88
30353(2)
Return % Relative Humidity
AI-89
30355(2)
Space % Relative Humidity
AI-93
30363(2)
Return Duct Static Pressure
AI-94
30365(2)
Space Static Pressure
AI-95
30367(2)
Supply Duct Static Pressure
AI-116
30401(2)
Space 1 CO2 ppm
AI-118
30405(2)
Return CO2 ppm
AI-119
30407(2)
Circuit A Discharge Pressure
AI-120
30409(2)
Circuit A Suction Pressure
AI-121
30411(2)
Circuit B Discharge Pressure
AI-122
30413(2)
Circuit B Suction Pressure
AI-143
30455(2)
Exhaust Fan Speed Remote Command
AI-155
30461(2)
Supply Fan Speed Remote Command
AI-640
30639(2)
Customer defined auxiliary input
AI-642
30641(2)
Customer defined auxiliary input
AI-644
30643(2)
Customer defined auxiliary input
AI-646
30645(2)
Customer defined auxiliary input
AI-648
30647(2)
Customer defined auxiliary input
AI-650
30649(2)
Customer defined auxiliary input
Analog Values - Read COV/ Write-Commandable - Modbus Holding Registers (Size)
AV-1
40001(2)
Main Temperature Setpoint - Supply, Space, or Return
AV-2
40003(2)
Heat/Cool Spt Deadband
Space or Return reset control is active
Clg Spt = Temp Spt + Deadband/2
Htg Spt = Temp Spt - Deadband/2
AV-3
40005(2)
Cooling Coil Leaving Air Setpoint Minimum
AV-5
40009(2)
Dehumidification Setpoint
%RH for Space or Return reset control
AV-6
40011(2)
Outside Dewpoint Dehumidification Trigger Setpoint