Neptronic TFCB24F3XYZ1 User manual

TFxB Series Thermostat Controller
BACnet®Communication Module
User Guide
TFxB-SERIES-BACNET-USER GUIDE
TFxB24-Bacnet-121026-EUA.doc

TFxB Series Thermostat Controller
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Table of Contents
TFxB Series Thermostat Controller.......................................................................................1
Table of Contents ....................................................................................................................1
Introduction..............................................................................................................................2
BACnet®Overview..................................................................................................................2
Getting Started.........................................................................................................................3
Quick Setup ............................................................................................................................3
Manual Setup..........................................................................................................................3
Copy Config............................................................................................................................4
MAC address and Max_Master..............................................................................................4
Device Object Properties........................................................................................................5
Object Types Supported.........................................................................................................6
Out of Service.........................................................................................................................6
Objects Table..........................................................................................................................7

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Introduction
This document provides information on using the Neptronic thermostat controller communications feature. This
product provides a BACnet®network interface between BACnet®client devices and Neptronic controllers. It
uses the BACnet®Master Slave/Token Passing (MS/TP) protocol at the BACnet®MAC layer.
This document assumes you are familiar with BACnet®and BACnet®terminology.
BACnet®Overview
Performance
The thermostat controller uses a synchronous implementation for BACnet®messages. Each BACnet®
confirmed service request is answered as quickly as possible without using Reply Postponed. In particular,
MS/TP implementation performs within Tusage_delay of 15ms in order to assure Tusage_timeout values within
20ms.
Support for MS/TP
The thermostat controller supports a Full Master Node state machine for MS/TP. All parameters are configured
via the thermostat menu or via the BACnet®WriteProperty service. Changes made via the WriteProperty take
effect immediately and does not require a restart of the thermostat controller. For more information the
configurable properties, please refer to the Getting Started section on page 3. For more information on the
thermostat menu, please refer to the thermostat controller’s Specification & Installation Manual for more details.
BIBB Support
The thermostat controller generally behaves as a B-ASC type profile server. The following specific BIBBs are
supported per their relevant definitions in Annex K to BACnet®: DS-RP-B, DS-RPM-B, DS-WP-B, DS-WPM-B,
DM-DDB-B, DM-DOB-B, DM-DCC-B
Object Support (in general)
The thermostat controller supports a table-based fixed list of BACnet®-visible values which appear as
Present_Values of various BACnet®standard object types, in addition to a Device object.
Alarms
Although the thermostat controller supports the ability to indicate various alarm conditions through value
changes in properties of several of its objects, it does not generate BACnet®Event Notifications.
Features
Neptronic thermostat controllers also offer the following time-saving features.
Auto Baud Rate Detection
The thermostat controller automatically configures its baud rate by detecting the network speed upon
connection.
Auto Device Instance Configuration
The thermostat controller automatically configures its device instance to 153000 + MAC address.
Copy Configuration
Copy the thermostat controller’s entire configuration and broadcast it to other thermostat controllers of the
same type on the same network.

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Getting Started
The following BACnet®properties are configurable and may need to be modified to effectively establish
communication on the network and to guarantee uniqueness of each device in a BACnet®system.
MAC Address (Default: 001)
Set between 000 and 254 via thermostat menu* (128-254 represent MS/TP non-token-passing slave devices).
Device Instance (Default: Auto)
The thermostat controller automatically configures its device instance to 153000 + MAC address. Can
also be set manually via thermostat menu* or through the WriteProperty service to Device
Object.Object_Identifier. The device’s Object_Identifier is a combination of the Device Object_Type (8)
and the Device_Instance (0-4194302), therefore its decimal or hexadecimal representation tends to be
incomprehensible. For example, the Device_Instance=1000 has an equivalent Object_Identifier of
0x020003E8 hexadecimal or 33555432 decimal. While it’s the device’s Object_Identifier property that
can be changed using a BACnet®WriteProperty service, this document refers mostly to
Device_Instance.
Baud Rate (Default: 0 = Auto)
The thermostat controller automatically configures its baud rate by detecting the network speed upon
connection. Can also be set manually via thermostat menu* or through the WriteProperty service to
Device Object.proprietary property #1001. This value is Unsigned type, and available values are 9600,
19200, 38400, 76800.
Max_Master (Default: 127)
To increase network efficiency or if there are less than 127 devices on the network, the Max_Master
value can be configured through WriteProperty service to the Device Object.Max_Master. For more
information, refer to the MAC address and Max_Master section on page 4.
Device Object.Object_Name
Name of device, for example TFCB24XYZ3. This value can be configured through WriteProperty
service to the Device Object.Object_Name.
* NOTE: When referring to the thermostat menu in this section, it includes the Quick Access Menu when in
operation mode (RUN) and the Installer Menu when in programming mode (PGM).Refer to the thermostat
controller’s Specification & Installation Manual for more details.
Quick Setup
Take advantage of the thermostat controller’s Auto Baud Rate Detection, Auto Device Instance Configuration,
and default Max_Master value, to get up and running with no programming.
1) Connect the thermostat controller to the network and then power up the unit. The thermostat controller
automatically configures the baud rate and device instance.
2) If you need to set a unique MAC address (default 001), continue to step 3. If not, setup is complete.
3) With the thermostat controller in Operation Mode (jumper = RUN), go to the Quick Access Menu by
pressing and holding both function buttons on the thermostat for 5 seconds. Refer to the Specification &
Installation Manual for more details.
4) Enter the password (637).
5) Set a unique MAC address.
6) Power down and then power up the thermostat controller.
Manual Setup
If your site has more than one TFxB network and/or you wish to use a Device_Instance other than 153,000,
follow these instructions.
1) With the thermostat controller in Operation Mode (jumper = RUN), go to the Quick Access Menu by
pressing and holding both function buttons on the thermostat for 5 seconds. Refer to the Specification &
Installation Manual for more details.

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2) Enter the password (637).
3) In this mode you can manually configure the MAC address, Device Instance and Baud Rate.
4) Power down the thermostat controller, connect it to the network and then power up the unit.
5) Repeat steps 1 to 4 for each thermostat controller.
6) To increase network efficiency or if there are less than 127 devices on the network, the Max_Master
value can be configured through WriteProperty service to the Device Object.Max_Master. For more
information, refer to the MAC address and Max_Master section on page 4.
Copy Config
Copy the thermostat controller’s entire configuration and broadcast it to other thermostat controllers of the same
type on the same network.
1) With the thermostat controller in Operation Mode (jumper = RUN), go to the Quick Access Menu by
pressing and holding both function buttons on the thermostat for 5 seconds. Refer to the Specification &
Installation Manual for more details.
2) Enter the password (637).
3) Scroll to “Copy Config” and select yes. Follow onscreen instructions.
MAC address and Max_Master
The MAC address must be unique on the entire MS/TP network. However, having a unique MAC address and a
high baud rate does not guarantee efficient operation of the thermostat controller and other MS/TP units on the
MS/TP network. Some MAC address and Max_Master combinations are more efficient than others. BACnet®
requires token-passing units to occasionally “poll” for other masters based on the MAC address and
Max_Master. A “poor” combination of MAC addresses and Max_Master can lead to a slower network due to lost
time polling for masters that are not present. Unless there are 126 other units on the MS/TP network, the default
Max_Master of 127 is not the most efficient choice for the thermostat controller. The Max_Master default of 127
was selected to ensure that any master, specifically a BACnet®client, can be found when the thermostat
controller is first started.
Example 1:
This example is slow and inefficient because every time either unit is required to find another master unit it has
to poll 126 units until it finds the right one to pass the token.
MAC=0. Max_Master=127
MAC=1, Max_Master=127
Example 2:
This example is better but it’s still slower. The Max_Master is set to the most efficient value; however because
of the gap between the two MAC addresses, each unit must poll 4 units until it finds the right one to pass the
token.
MAC=0. Max_Master=5
MAC=1 to MAC=4 are not used
MAC=5, Max_Master=5
Example 3:
This example is an incorrect configuration. The MAC=0 will never find MAC=2 because it will never poll for the
master MAC address=2.
MAC=0. Max_Master=1
MAC=2, Max_Master=2
Example 4:
As a general guideline, the most efficient set up for an MS/TP network is one in which the units are
consecutively numbered starting at MAC address 0 and all have Max_Master=the maximum MAC address in
the system. If consecutive numbering is not possible, then the next most efficient set up is one in which all units
have Max_Master=the maximum MAC address in the system.
MAC=0. Max_Master=3
MAC=1, Max_Master=3
MAC=2, Max_Master=3
MAC=3, Max_Master=3

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Device Object Properties
The following table lists all the BACnet®properties supported for the device object. The “W” indicates if the
property is writable using the BACnet®WriteProperty service.
Property Value Writable
Object_Identifier Programmable where the instance part of the Object_Identifier is in
the range of 0-4194302. The device instance must be unique system-
wide. The default value for the device instance=153000
(Vendor_Identifier*1000)
W
Object_Name Programmable up to 32 characters. The device name must be unique
system-wide. The default value is Model_Name. W
Description Programmable up to 32 characters. The default value= "BACnet
thermostat" W
Object_Type 8
System_Status Non-Operational if major error on device.
Vendor_Identifier Always 153
Vendor_Name Always “National Environmental Products Ltd”
Model_Name Example : “TFCB24F3XYZ3”
Firmware_Revision currently “1.17”
Application_Software_Version currently “1.20”
Protocol_Version Always 1
Protocol_Revision Always 4
DataBase_Revision Default = 0, will be incremented if Object_Name and/or
Odject_Identifier is modified
Max_APDU_Length_Accepted Always 107
Segmentation_Supported (3) = No Segmentation
APDU_Timeout 3000
Number_of_APDU_Retries Always 0
Protocol_Services_Supported Always 0x00 0x09 0x40 0x00 0x60 (i.e. a bitstring in BACnet
®
order)
Protocol_Object_Types_Supported Always 0x00, 0xB4, 0x80, 0x10
(i.e. a bitstring in BACnet®order)
- analog-input, analog-value, binary-input, binary-value
- device
- multi-state-value
Object_List Per the standard. Because of restrictions on the size of the transmit
buffers, the entire Object_List cannot be returned at once, rather the
Object_List must be read, one-at-a-time.
Device_Address_Binding Always empty.
Max_Master Programmable in the range of 0-127. Default value=127 W
Max_Info_Frames Always 1
Proprietary property #1000 Programmable. This proprietary property represents the MS/TP MAC
address in the range of (0-254). Values 128 to 254 represent MS/TP
non-token-passing slave devices. Default value=1
W
Proprietary property #1001 Programmable. This proprietary property represents the MS/TP baud
rate. This value is Unsigned type, and available values are 9600,
19200, 38400, 76800. Writing 0 will activate auto baud rate
functionality. Reading this property will always return actual baud rate.
Default : Auto* (Auto Baud Rate Detection requires V1.17 and up)
W
Proprietary property #1002 Programmable. This proprietary property represents that period of
time that an object in/out of service will automatically return to normal.
Range = 0-120 minutes (unsigned type). Writing 0 means no
automatic return to normal. Default: 15 minutes.
W

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Object Types Supported
A complete list of all BACnet®objects for the thermostat controller is listed in the following section:
The Device Object has already been described. The following tables list all the BACnet®properties supported
for each object type. Most of the properties are locked in. The exception is Present_Value, which represents the
dynamic operating values of the device, and the Status_Flag, Event_State and Reliability properties which
reflect the availability of the Present_Value. Unless otherwise specified, properties are not changeable.
Object Type Supported Optional Properties
Supported Writable Properties If “Out of Service” is True
Analog Input 
Reliability
Description
Min_Present_Value
Max_Present_Value
Resolution
Out_of_Service Present_Value
Status_Flag
Analog Value Reliability
Description Present_Value1
Out_of_Service2Present_Value
Status_Flag
Binary Input 
Reliability
Active_Text
Inactive_Text
Description
Out_of_Service Present_Value
Status_Flag
Binary Value 
Reliability
Active_Text
Inactive_Text
Description
Present_Value3
Out_of_Service4Present_Value
Status_Flag
Device 
Max_Master
Max_Info_Frame
Description
#1000 (MAC)
#1001 (BAUD RATE)
#1002 (TIME OUT)
Object_Identifier
Object_Name
Max_Master
Description
#1000
#1001
#1002
N/A
Multi-State Value5Description
Reliability
States_Text
Present_Value6
Out_of_Service7N/A
Out of Service
Neptronic thermostat controllers offer the use of the “Out of Service” writable property. When set to true, this
property disconnects the object from the physical input, enabling you to input other values. This could be useful
for special applications or when troubleshooting. For example, you can ignore the temperature read from a
sensor and input the desired temperature value in order to perform specific tests.
For security reasons there is a timeout that will set the Out of Service property back to false after 15 minutes.
This value can be modified to between 0 and 120 minutes (see proprietary property #1002).
1Present_Value property is writable for every AV object except: AV.1, AV.2, AV.3, AV.4, AV.28, AV.36, AV.41, AV.42
2 Out_of_Service property is writable for objects that Present_Value is not writable: see list above. Object will automatically return to normal
after a programmable period of time. See Proprietary property #1002 of Device object.
3Present_Value property is writable for every BV object except: BV.7
4Out_of_Service property is writable for objects that Present_Value is not writable. See list above. Object will automatically return to normal
after a programmable period of time. See Proprietary property #1002 of Device object.
5MSV object states number and text can vary depending of system set-up. Use carefully.
6Present_Value property is writable for every MSV object except: MSV.14
7Out_of_Service property is writable for objects that Present_Value is not writable. See list above.
Object will automatically return to normal after a programmable period of time. See Proprietary property #1002 of Device object.

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Objects Table
The TFxB24 Thermostat series of controllers use the following BACnet®object table. The type is the BACnet®
Object type, the instance is the BACnet®Object. Together the type and instance form the BACnet®
Object_Identifier for an object according to the following C-language algorithm:
object_identifier=(unsigned long)((unsigned long)type<<22)+instance
ID8Name Writable
Property
TFCB24F3XYZ1 TFCB24F3XY2 TFHB24F3XYZ1 TFHB24F3XYZ2 TFCB24P3-OE1 TFHB24P3-OE1 TFHB24P3-OE2
Notes
AI.1 Intern.Temper. Out of service xxxx xxx
0-50ºC or 32-122ºF, Resolution 0.01ºC/0.02ºF
AI.2 Extern.Temper. Out of service xx x xxx
0-50ºC or 32-122ºF, Resolution 0.01ºC/0.02ºF
AI.3 ChangeOverTemper. Out of service xxxx xxx
0-50ºC or 32-122ºF, Resolution 0.01ºC/0.02ºF
AI.4 Intern.Humidity Out of service x x
5-95%RH, Resolution 0.1%RH
AI.9 Extern.Humidity Out of service x x
5-95%RH, Resolution 0.1%RH
AV.1 ControlTemper. Out of service xxxx xxx
0-50ºC or 32-122ºF, Resolution 0.01ºC/0.02ºF
AV.2 HeatingDemand Out of service xxxx xxx
0-100%, Resolution 0.1%
AV.3 CoolingDemand Out of service xxxx xxx
0-100%, Resolution 0.1%
AV.4 FanDemand Out of service xxxx xxx
0-100%, Resolution 0.1%
AV.5 Intern.Temper.Offset Present Value xxxx xxx
± 5.0ºC, Resolution 0.1ºC
AV.6 Extern.Temper.Offset Present Value xx x xxx
± 5.0ºC, Resolution 0.1ºC
AV.7 Temper.SetPointOcc. Present Value xxxx xxx
AV.8 to AV.9, Resolution 0.5ºC/1ºF
AV.8 Min.SetPointOcc. Present Value xxxx xxx
0 to AV.9, Resolution 0.5ºC/1ºF
AV.9 Max.SetPointOcc. Present Value xxxx xxx
AV.8 to 40ºC or 104ºF, Resolution 0.5ºC/1ºF
AV.10 Temper.SetPointCoolNoOcc. Present Value xxxx xxx
AV.11 to 40ºC or 104ºF, Resolution 0.5ºC/1ºF
AV.11 Temper.SetPointHeatNoOcc. Present Value xxxx xxx
10.0ºC or 50ºF to AV.10, Resolution 0.5ºC/1ºF
AV.12 CoolingProp.Band Present Value xxxx xxx
0.5-5ºCor 1-10ºF, Resolution 0.5ºC/1ºF
AV.13 HeatingProp.Band Present Value xxxx xxx
0.5-5ºC or 1-10ºF, Resolution 0.5ºC/1ºF
AV.14 CoolingDeadBand Present Value xxxx xxx
0.3-5ºC or 0.6-10ºF, Resolution 0.1ºC/0.2ºF
AV.15 HeatingDeadBand Present Value xxxx xxx0.3-5ºC or 0.6-10ºF, Resolution 0.1ºC/0.2ºF
AV.16 FanTimeOutDelay Present Value xxxx xxx
0-15 minutes, Resolution 1 minute
AV.17 Heat/CoolVoltageMin.2pipes Present Value xxxx xxx
0 Volt to AV.20, Resolution 0.1 Volt
AV.18 CoolingVoltageMin.4pipes Present Value xxxx xxx
0 Volt to AV.21, Resolution 0.1 Volt
AV.19 HeatingVoltageMin.4pipes
For TFHB24P3-OE1 and TFHB24P3-OE2
Heating4PipesOrHumid.Volt.Min. Present Value xxxx xxx
0 Volt to AV.22, Resolution 0.1 Volt
AV.20 Heat/CoolVoltageMax.2pipes Present Value xxxx xxxAV.17 to 10.0 Volt, Resolution 0.1 Volt
AV.21 CoolingVoltageMax.4pipes Present Value xxxx xxx
AV.18 to 10.0 Volt, Resolution 0.1 Volt
AV.22 HeatingVoltageMax.4pipes
For TFHB24P3-OE1 and TFHB24P3-OE2
Heating4PipesOrHumid.Volt.Max. Present Value xxxx xxx
AV.19 to 10.0 Volt, Resolution 0.1 Volt
AV.23 ChangeOverSetPoint Present Value xxxx xxx
10-40ºC or 50-104ºF, Resolution 0.5ºC/1ºF
AV.25 FanDampingFactor Present Value xxxx xxx
0-10 seconds, Resolution 1 second
AV.26 Int.TimeFactor Present Value xxxx xxx
0-250 seconds, Resolution 5 seconds
AV.27 CoolingAntiCycleDelay Present Value xxxx xxx
0-15 minutes, Resolution 1 minute
AV.28 Loc.Heat.Demand Out of service xxxxxx
0-100%, Resolution 0.1%
AV.29 Loc.Heat.Prop.Band Present Value x xx xxx
0.5-5ºC or 1-10ºF, Resolution 0.5ºC/1ºF
AV.30 Loc.Heat.DeadBand Present Value xxxxxx
0.3-5ºC or 0.6-10ºF, Resolution 0.1ºC/0.2ºF
AV.31 FloatingMotorTiming Present Value x xx xxx
15-250 seconds, resolution 5 seconds
AV.32 Loc.Heat.VoltageMin. Present Value xxxxxx
0 Volt to AV.33, Resolution 0.1 Volt
AV.33 Loc.Heat.VoltageMax. Present Value x xx xxx
AV.32 to 10.0 Volt, Resolution 0.1 Volt
AV.34 FanVoltageMin. Present Value x xx xxx
0 Volt to AV.35, Resolution 0.1 Volt
AV.35 FanVoltageMax. Present Value x xx xxxAV.34 to 10.0 Volt, Resolution 0.1 Volt
AV.36 Dehumid.Demand Out of service xx xx
0-100%, Resolution 0.1%
AV.37 HumiditySetPoint Present Value xx xx
10.0-65.0%RH, Resolution 0.5%RH
AV.38 Intern.HumidityOffset Present Value x x
± 5.0%RH, Resolution 0.1%RH
AV.39 NoOcc.OverrideDelay Present Value xxxx xxx
0-180 minutes, Resolution 15 minutes
AV.40 HumidityControlRamp Present Value xx xx
3.0-10.0%RH, Resolution 0.5%RH
AV.41 Humidif.Demand Out of service xx
0-100%, Resolution 0.1%
AV.42 CoolingDemand2 Out of service xxx
0-100%, Resolution 0.1%
AV.43 CoolingProp.Band2 Present Value xxx
0.5-5ºC or 1-10ºF, Resolution 0.5ºC/1ºF
AV.44 CoolingDeadBand2 Present Value xxx
0.3-5ºC or 0.6-10ºF, Resolution 0.1ºC/0.2ºF
AV.45 Extern.HumidityOffset Present Value x x
± 5.0%RH, Resolution 0.1%RH
8ID is equal to ObjectType.Instance

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ID8Name Writable
Property
TFCB24F3XYZ1 TFCB24F3XY2 TFHB24F3XYZ1 TFHB24F3XYZ2 TFCB24P3-OE1 TFHB24P3-OE1 TFHB24P3-OE2
Notes
BI.1 DigitalInput Out of service xxxx xxx
0= Open
1= Close
BV.1 Temper.Unit Present Value xxxx xxx
0= Celsius
1= Fahrenheit
BV.2 Temper.SetPointLock Present Value xxxx xxx
0= Disable
1= Enable
BV.3 UserControlOffMode9Present Value
xxxx xxx
0= Enable
1= Disable
BV.4 UserFanAutoMode Present Value xxxx xxx
0= Enable
1= Disable
BV.5 ControlType Present Value xxxx xxx
0= 2Pipes
1= 4Pipes
BV.6 ControlTemper.Source Present Value xx x xxx
0= Intern.Sensor
1= Extern.Sensor10
BV.7 ChangeOverMode Out of service xxxx xxx
0= Cooling
1= Heating
BV.9 CoolingRamp2 Present Value xxx
0= Off
1= On
BV.10 Humidification Present Value xx
0= Off
1= On
BV.16 AntiFreezeProtection11 Present Value
xxxx xxx
0= Off
1= On
MSV.1 UniversalInputFunction12 Present Value
xx x x x
1= Off
2= Extern.Sensor
States of TFCB24F3XY2 product,
States available if BV.5 is set to “2Pipe”
1= ChangeOverSensor
2= Ch.Ov.ContactNorm.Cool
3= Ch.Ov.ContactNorm.Heat
States available if BV.5 is set to “4Pipe”
1= Off
2= Extern.Sensor
MSV.2 UserFanSpeed Present Value xxxx xxx
States available if BV.4 is set to “Enable”
1= Auto
2= Speed1_Low
3= Speed2_Medium (available if MSV.8 is set
to “Analog” or “3Speeds” or “2Speeds”)
4= Speed3_High (available if MSV.8 is set to
“Analog” or “3Speeds”)
States available if BV.4is set to “Disable”
1= Speed1_Low
2= Speed2_Medium (available if MSV.8 is set
to “Analog” or “3Speeds” or “2Speeds”)
3= Speed3_High (available if MSV.8 is set to
“Analog” or “3Speeds”)
9Enable or Disable “off” state of UserControlMode (MSV.3).
10 It can be set to “Extern.Sensor” only if one object MSV.1 or MSV.12 is set to “Extern.Sensor” (only in -OE1)
11 Available on version 1.07 and above.
12 Activating external temperature does not automatically modify the control source; it is necessary to also modify BV.6 to control external
temperature.

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ID8Name Writable
Property
TFCB24F3XYZ1 TFCB24F3XY2 TFHB24F3XYZ1 TFHB24F3XYZ2 TFCB24P3-OE1 TFHB24P3-OE1 TFHB24P3-OE2
Notes
MSV.3 UserControlMode Present Value xxxx xxx
States of all except TFxB24-OEy
States available if MSV.4 is set to “Auto”
1= Auto
2= Heating
3= Cooling
4= Off (only if BV.3 is set to “Enable”)
States available if MSV.4 is set to “Cooling”
1= Cooling
2= Off (only if BV.3 is set to “Enable”)
States available if MSV.4 is set to “Heating”
1= Heating
2= Off (only if BV.3 is set to “Enable”)
States available if MSV.4 is set to
“HeatingOrCooling”
1= Heating
2= Cooling
3= Off (only if BV.3 is set to “Enable”)
States of TFxB24-OEy products,
States available if MSV.4 is set to “Auto”
1= Auto
2= Heating
3= Cooling
4= Fan
5= Off (only if BV.3 is set to “Enable”)
States available if MSV.4 is set to “Cooling”
1= Cooling
2= Fan
3= Off (only if BV.3 is set to “Enable”)
States available if MSV.4 is set to “Heating”
1= Heating
2= Fan
3= Off (only if BV.3 is set to “Enable”)
States available if MSV.4 is set to
“HeatingOrCooling”
1= Heating
2= Cooling
3= Fan
4= Off (only if BV.3 is set to “Enable”)
MSV.4 ControlMode13 Present Value
xxxx xxx
1= Auto
2= Heating
3= Cooling
4= HeatingOrCooling
MSV.5 Heat/CoolOutputSignal2pipes Present Value xxxx xxx
1= Analog
2= On_Off
3= Floating (except for TFCB24F3XY2)
MSV.6 HeatingOutputSignal4pipes Present Value xxxx xxx
1= Analog
2= On_Off
3= Pulsing
MSV.7 CoolingOutputSignal4pipes Present Value xxxx xxx
1= Analog
2= On_Off
MSV.8 FanOutputSignal Present Value xxxx xxx
1= Analog
2= 1Speed
3= 2Speeds
4= 3Speeds
State for TFCB24F3XY2 product,
1= 1Speed
2= 2Speeds
3= 3Speeds
MSV.10 Loc.Heat.OutputSignal Present Value x xx xxx
1= Off
2= On_Off
3= Pulsing
4= Analog
5= On_Off_w_Fan
6= Pulsing_w_Fan
7= Analog_w_Fan
13 Locks user options. MSV.3, UserControlMode, will be affected or even locked in one state.

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ID8Name Writable
Property
TFCB24F3XYZ1 TFCB24F3XY2 TFHB24F3XYZ1 TFHB24F3XYZ2 TFCB24P3-OE1 TFHB24P3-OE1 TFHB24P3-OE2
Notes
MSV.11 DigitalInputMode Present Value xxxx xxx
1= OccNorm.Open
2= OccNorm.Close
MSV.12 UniversalInput2Function Present Value x xx xxx
States available if BV.5 is set to 2Pipe:
1= ChangeOverSensor
2= Ch.Ov.ContactNorm.Cool
3= Ch.Ov.ContactNorm.Heat
States available if BV.5 is set to 4Pipe except
for OE1 version.
1=Off
States available if BV.5 is set to “4 Pipe” in OE1
version
1= Off
2= Extern.Sensor
MSV.13 OccupancyMode14 Present Value
xxxx xxx
1= Occ.Locally
2= Occupancy
3= NoOccupancy
MSV.14 OccupancyStatus15 Out of service xxxx xxx
1= NoOccupancy
2= Occupancy
3= Override
14 Occ.Locally lets the thermostat locally manage the occupancy or noOccupancy status for energy conservation. The other 2 states force
the thermostat into a specific state.
15 Read only. Override will only be active if AV.39 is other than 0 and the user presses a button.

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