
INPUTS & OUTPUTS
8BACnet®General Controller Technical Guide
Inputs and Outputs
Analog Inputs (Hard-Wired)
Theanaloginputscanbeconguredfor10Kohm,TypeIIItherm-
istor sensors or for user-scaled 0-5 VDC, 0-10 VDC, or 4-20 mA
inputs. Orion communicating temperature sensors, communicating
combination temperature/humidity sensors, or communicating CO2
sensors can also be used as analog inputs. These communicating
sensors require the use of pre-terminated Orion E-BUS modular
cables. See the next section for details.
Theinitialcongurationoftheanaloginputsisaccomplishedusing
points AV:5 through AV:12. AV:5 is associated with analog input
#1, AV:6 with analog input #2, etc. For each point (AV:5 through
AV:12),abitvaluecanbeenteredtocongurethatinputforthetype
of sensor or signal that will be used on that input. See the BACnet®
Parameters Table for the available options.
The jumpers next to each input must be set to match the selected
congurationforthatinput.
Once the Analog Input types have been selected, any of those inputs
conguredfor0-5VDC,0-10VDC,or4-20mAsignalscanbescaled
using points AV:13 through AV:20 to set the maximum scaled value
and points AV:21 through AV:28 to set the minimum scaled value
for each input.
Analog Inputs Using Communicating
Sensors
Inadditiontohard-wiredinputs,dierenttypesofE-BUScommuni-
cating sensors may be used as analog inputs with the BGC Controller.
If multiple communicating sensors are used, it may require the use of
anE-BUSAdapterBoardor an E-BUSAdapter Hub in order to
provideadditional E-BUS connection ports. An E-BUS cable is
required to connect either device to the BGC as well as to connect
the sensors to these devices.
ThefollowingOrionE-BUScommunicatingsensorsareavailable
to use with the BGC:
• ASM01819 - Space Temperature Sensor with
Digital Display
• ASM01820 - Combination Space Temperature/
Humidity Sensor with Digital Display
• ASM02221 - Combination Space Temperature/
Humidity Sensor without Digital Display
• ASM01836 - Combination Outdoor Air Temperature/
Humidity Sensor
• ASM01840 - Combination Return Air Temperature/
Humidity Sensor
• ASM01829 - Wall Mount CO2Sensor
• ASM01831 - Duct Mount CO2Sensor
The temperature value of a communicating sensor will be displayed
on the appropriate analog input (AI:2 through AI:9). If a combina-
tion temperature/humidity sensor is used, the humidity value of that
sensor will be displayed on the corresponding analog input (AI:10
through AI:17).
A communicating CO2 sensor value will be displayed on the ap-
propriate analog input (AI:2 through AI:9).
The Communicating Sensor Technical Guides can be downloaded
from www.aaon.com/controlsmanuals under Sensors.
NOTE: The communicating space sensor (temperature only
with display or combination temperature/humidity
with display) is the only communicating sensor that
can be used on multiple analog input addresses. If
multiple space sensors are used, they can be addressed
as address 1 through 8 via the display on the sensors.
Then, using points AV:29 through AV:36, those
sensors can be addressed accordingly on the BGC.
All other communicating sensors can only be used
once per BGC, and can be left at address 1 on the
appropriate point, AV:29 through AV:36.
Binary Inputs
The(8)wetcontact(24VAC)binaryinputscanbereadasOpen(O)
or Closed (On) using points BI:1 through BI:8. See the Appendix
A: BACnet®Parameters Table forthecongurationoptions.
Analog Outputs
The (4) analog outputs can be commanded to a voltage value be-
tween 0.0 VDC to 10.0 VDC using points AV:1 through AV:4. See
Appendix A: BACnet®Parameters Table for the selection options.
Relay Outputs
The(8)relayoutputscanbecommandedOnorOusingpointsBV:1
through BV:8. See Appendix A: BACnet®Parameters Table for
the selection options.