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Note: The table shows all objects for Temperature and RH. If you have a Temperature only model, the RH objects(AI-1 and 
AV-1) will not be present. If you have a RH only model, the Temperature objects (AI-0 and AV-0) will not be present.

TABLE 4: 

UNIT SETTING

UNITS

°F
K
°C

VALUE

64
63
62

Automation Components, Inc.

2305 Pleasant View Road  |  Middleton, WI 53562

Phone:

 1-888-967-5224  |  

Website:

 workaci.com

Page 5

OBJECT TYPE

Device
Analog 
Inputs
Analog 
Values

BACnet ENGINEERING UNITS

- - - - - - - - - - - - - - - - - - - - - - - - - - 
degrees-Fahrenheit (64) - default
percent-relative-humidity (29)
delta-degrees-Fahrenheit (120)

percent-relative-humidity (29)

PIC STATEMENT QR

RANGE

0-4194302
34.7 - 122.0
0.0 - 95.0
-9.0 - 9.0

-10.0 -10.0

OBJECT NAME

BN211x0
Temperature Sensor
RH Sensor
Temperature 
Calibration Offset
RH Calibration Offset

OBJECT ID

- - - - - - - - - - 
AI-0
AI-1
AV-0

AV-1

TABLE 5: 

BACnet OBJECT TABLE

DEVICE NAME

By default, the device name is based on the type of device 
and the address. The device name can be a character string 
up to (32) characters in length. This can be changed once the 
device is connected to the network. For example: 
Temperature Sensor - 034. The device name must be unique 
throughout the entire BACnet network, not just this segment.

TEST MODE BACnet 

For the Sensor objects (AI0 and AI1), a test mode can be set by writing the Boolean value true to the 
“out-of-service” property.  Then the present-value can be set to any valid test value the user requires.  This 
allows a user to test reactions to specific values returned by this device.

DEVICE LOCATION

The device location is optional but is intended to allow for further definition of the device’s location. The 
device location can be a character string up to 64 characters in length. 

DEVICE DESCRIPTION

By default, the device description is optional but is intended to allow for further information about the 
device or its environment. The device location can be a character string up to 64 characters in length.

TEMPERATURE UNITS CONFIGURATION

For temperature, the units of measure can be configured using BACnet. By writing to the units property of 
the temperature sensor (AI0), the reported temperature units can be changed. 

TABLE 4

 shows the values 

to write.

TEMPERATURE AND RH OFFSET

This device allows for a temperature offset of +/-5C (9F) and an RH offset of +/-10%. By default, these values 
are set to 0, meaning no offset is added.

These are set by writing to the present value of the Temperature Calibration Offset (AV0) or RH Calibration 
Offset (AV1). The value written must be within the specified range or an error will be returned. To set back 
to factory settings, write any changed values to 0.

Version: 2.0

I0000927

Summary of Contents for BACnet Series

Page 1: ...we recommend removing the block wiring and reattaching before mounting 16 to 22 AWG two conductor shielded cable is recommended for powering the sensors ACI recommends using Belden 3105 or compatible cable for RS 485 communication wiring This wire has 120 ohm input impendence The terminal blocks allow for 1 or 2 wires to be connected in each position for daisy chaining Daisy chain the RS 485 wirin...

Page 2: ...ings followthesetips The sensor should be mounted in the middle of the duct where air circulation is well mixed no stratification and not blocked by obstructions Stratification and obstructions can cause sensing errors An example is downstream from a heating or coolingcoil Duct probe should be placed 3 to 4 duct segments down from any bend or obstructions and away from 90 bends Mount the sensor on...

Page 3: ...es are allowed to send and receive tokens on the MSTP network ACI s Modbus RTU sensors are slave devices Only one master is connected to the bus and several slave nodes are connected to the same trunk The Master initiates communication The slave nodes only respond to a request from the Master Slave nodes do not communicate with each other Each branch must have all devices connected with connected ...

Page 4: ... INFORMATION One LED indicates four statuses Solid green shows that power is good but no data is transmitting A solid Amber indicates that auto baud is set and no data has been received to set a baud rate Green Amber flashing indicates data is being transmitted or received Solid Red LED status indicates an error state usually loss of communication on the network If BACnet is the selected protocol ...

Page 5: ...Sensor objects AI0 and AI1 a test mode can be set by writing the Boolean value true to the out of service property Then the present value can be set to any valid test value the user requires This allows a user to test reactions to specific values returned by this device DEVICE LOCATION The device location is optional but is intended to allow for further definition of the device s location The devi...

Page 6: ...e as in the Master device configuration ACI s Modbus RTU sensors utilize 8 data bits during communication exchange Parity and stop bit selection is performed via the SW4 switch located on the board Dipswtiches 1 and 2 are adjusted to select the parity and stop bits see TABLE 6 Where 0 is OFF and 1 is ON If BACnet protocol is selected these dipswitches are irrelevant TEST MODE Modbus RTU There are ...

Page 7: ...ature Units 0 2 3 1001 1002 9001 Thru 9016 9017 Thru 9048 9049 Thru 9080 Temperature Offset Value Tenths Signed Integer User can set an offset that will be added to Temperature sensor and reflected in IR3 Range of 5 0 to 5 0 degrees Celsius degrees Kelvin 9 0 to 9 0 degrees Fahrenheit For example writing 16 would add an offset of 1 6 degrees Relative Humidity Offset Tenths User can set an offset t...

Page 8: ...able 4 seconds BACnet MS TP or Modbus RTU Field Selectable EIA RS 485 0 to 127 0 Default Must be changed if Modbus RTU is selected protocol Field Selectable Auto Baud Default BACnet Only 9600 19200 38400 57600 76800 115200 Field Selectable 1035000 Address example Address 127 1035127 Field Configurable None Even Odd Field Selectable 1 or 2 Field Selectable 8 Screw Terminal Blocks 16 AWG 1 31 mm2 to...

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