Neptronic SARB24TH User manual

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
SARB-161128-ESA.docx
Page | 1
Models
Models
Temp
RH
CO2
VOC
Networkable*
SARB24TH
●
●
●
SARB24TG
●
●
●
SARB24TV
●
●
●
SARB24TGH
●
●
●
●
SARB24TGVH
●
●
●
●
●
* Networkable: BACnet MS/TP or Modbus (selectable via menu)
Features
•Inputs and outputs
oOne analog input (AI1)
oOne binary input (BI1)
oTwo analog outputs (2 AO), commandable via network
oTwo binary outputs (2 BO), commandable via network
•Enthalpy and dew point calculations (available via network)
•Display or hide all the required access for user interaction
•Backlit LCD with simple icon and text-driven menus
•Selectable Fahrenheit or Celsius scale
•BACnet® MS/TP or Modbus (selectable via menu)
oSelect MAC address via menu or via network
oAutomatic baud rate detection
o
Network service port via on-board mini USB connector
SARB Series
Technical Specifications
Description
SARB Series
Temperature Sensor
Sensor range
-40ºC to 125ºC [-40ºF to 257ºF]
Display resolution
±0.1ºC [0.2ºF]
Humidity Sensor (SARB24TH, SARB24TGH and SARB24TGVH)
Sensor range
5 to 95% RH
Display resolution
0.1% RH
CO2Sensor (SARB24TG, SARB24TGH and SARB24TGVH)
Operating principle
Self-calibrating, Non-Dispersive Infrared (NDIR)
Sensor range
400 to 2000 ppm
Accuracy
±30 ppm ±3% of reading (Accuracy is defined after minimum 3 weeks of continuous operation)
Response time
2 minutes by 90%
VOC Sensor (SARB24TV and SARB24TGVH)
Operating principle
Self-calibrating, Non-Dispersive Infrared (NDIR)
Sensor range
0-1000 ppb isobutylene equivalent tVOCs
Response time
< 5 seconds for tVOC
Start up time
15 minutes
Other
Inputs
1 Analog input: 0-10Vdc or Thermistor (10k Type 3)
1 Binary input: digital input (dry contact)
Outputs
2 Binary outputs (BO1 and BO2), dry contracts 24Vac, 1A max 3A in-rush
2 Analog outputs (0 to 10Vdc)
BACnet
BACnet®MS/TP @ 9600, 19200, 38400, 57600 or 76800 bps (B-ASC)
Modbus
Modbus RTU slave @ 9600, 19200, 38400 or 57600. Selectable parity and stop bit configuration:
No parity, 2 stop bit | Even parity, 1 stop bit | Odd parity, 1 stop bit
Communication Connections
24 AWG twisted-shield cable (Belden 9841 or equivalent)
Electrical connection
0.8 mm2 [18 AWG] minimum
Operating temperature
0ºC to 50ºC [32ºF to 122ºF]
Storage temperature
-30ºC to 50ºC [-22ºF to 122ºF]
Relative humidity
5 to 95 % non-condensing

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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Enclosure protection
IP 30 (EN 60529)
Weight
135 g. [0.3 lb]
Dimensions
A = 2.85” | 73mm
B = 4.85” | 123mm
C = 1.00” | 24mm
D = 2.36” | 60mm
E = 3.27” | 83mm
Certifications and Listings
Wiring
We strongly recommend that all controllers be wired to a separate grounded transformer and that transformer shall service only
these products. This precaution will prevent interference with, and possible damage to incompatible equipment.
Terminal Description
Details
1
COM
2
24Vac / 24Vdc
3
COM for BO1 (ext 24V)
If JP1 is set to A+B
4
Binary Output 1 (BO1)
5
COM for BO2 (ext 24V)
If JP2 is set to A+B
6
Binary Output 2 (BO2)
7
COM
8
Analog Input (AI1)
9
COM
10
Binary Input 1 (BI1)
11
Analog Output 1 (AO1)
12
COM
13
Analog Output 2 (AO2)
14
BACnet/Modbus A+
15
BACnet/Modbus B-
A
B
C
D
E

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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Jumpers
Jumpers
Description
JP1 BO1 Signal Selection
JP1
A B C
A&B = External: BO1 uses external 24 Vac at pin 3 (different than thermostat)
AB C
JP1
B&C = Internal: BO1 uses internal 24 Vac (same as thermostat)
JP2 BO2 Signal Selection
JP2
A B C
A&B = External: BO2 uses external 24 Vac at pin 5 (different than thermostat)
AB C
JP2
B&C = Internal: BO2 uses internal 24 Vac (same as thermostat)
JP3 Mode Selection
PGM RUN
A
B
C
JP3
A&B = RUN: Standard operation mode
PGM RUN
A
B
C
JP3
B&C = PGM: Programming/configuration mode
JP5 End of Line
EOL
A B C
JP5
A&B: No EOL (end of line).
EOL
AB C
JP5
B&C: 120 Ohm end of line (on the last ARO of the RS-485 communication bus).
Mounting Instructions
CAUTION: Remove power to avoid a risk of malfunction.
A. Remove the captive screw that’s holding the base and the front cover of the unit together.
B. Lift the front cover of the unit to separate it from the base.
C. Pull all wires through the holes in the base.
D. Secure the base to the wall using wall anchors and screws (supplied). Make the appropriate connections.
E. Mount the control module on the base and secure using the screw.
A
E
D
C
B

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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Programming Mode
The Mode Selector Jumper JP3 must be set to the “PGM” mode (Programming Mode). Refer to Wiring on page 2. To exit, set the Jumper JP3 back to the “RUN” mode (Operation
Mode). All changes will be saved.
Modbus Baud Rate
Auto (default)
Bacnet Baud Rate
Auto (default)
MSTP MAC Addrss
0 (0-254)
0153000
0 (0-4194302)
MSTP MAX Master
127 (1-127)
OP1S (odd parity, 1 stop bit)
Modbus port Config
NP2S (no parity, 2 stop bits)
EP1S (even parity, 1 stop bit)
Modbus Addrss
1 (1-246)
1001 1000
Show Sensor Value
No
YES
Sensor OFFSet
No
YES
Netwrk Config
No
YES
Adjust Device Inst
No
YES
Show CO2
No
YES
Show VOC
No
YES
Show Temp
No
YES
Show Humdty
No
YES
CO2 Offset
Actual CO2(± 200 PPM)
VOC Offset
Actual VOC (± 100 PPB)
TEMP Offset
Actual Temp (± 10°C / ± 18°F)
Humdty Offset
Actual %RH (± 10%)
Main Menu Configuration
Main Menu
Go to
“Sensor Offset”
Go to
“Netwrk Config”
Select Netwrk Proto
bAC (BACnet)
mod (Modbus)
Go to
“Show Sensor Value”
Go to
“Show Sensor Value”
Go to
“Show Sensor Value”
= change value between 0 and 9
= next digit = prev digit
= Next step = Previous step = Change/select value
(9.6k, 19.2k, 38.4k, 57.6k, 76.8k)
Device instance
9.6k, 19.2k, 38.4, 57.6k

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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Operation Mode
The Mode Selector Jumper (JP3) must be set to the "RUN" mode (Operation Mode). Refer to Wiring on page 2.
F%
ppm
Auto
scroll
or press
Auto
scroll
or press
Auto
scroll
or press
Appears if display is locked.
Press to unlock.
When locked, auto-scroll is
disabled and other sensor
readings will not appear until
unlocked
Lock or unlock display of
sensor readings
Enable/disable backlight
Next/previous sensor reading
NOTE: The display of each sensor reading can be enabled or disabled via program (PGM) mode.

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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BACnet Device Object Properties
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 + MSTP ADD)
W
Object_Name Programmable up to 32 characters. The default value is Model_Name W
Description Programmable up to 32 characters. The default value is "Networkable Room Sensor" W
Object_Type Device
System_Status Always OPERATIONAL (0)
Vendor_Identifier Always 153
Vendor_Name Always Neptronic
Model_Name Example, SARGVH
Firmware_Revision currently, 1.01
Application_Software_Version currently, 1.25
Protocol_Version Always 1
Protocol_Revision Always 14
DataBase_Revision Default = 0, will be incremented if Object_Name and/or Odject_Identifier is modified
Max_APDU_Length_Accepted Always 480
Segmentation_Supported (3) = No Segmentation
APDU_Timeout 3,000
Number_of_APDU_Retries Always 3
Protocol_Services_Supported
Always 0x00, 0x0B, 0xC0, 0x02, 0x60 (i.e. a bitstring in BACnet® order)
•readProperty, readPropertyMultiple
•writeProperty, writePropertyMultiple
•deviceCommunicationControl
•reinitializeDevice
•who-Has, who-Is
Protocol_Object_Types_
Supported
Always 0x00, 0xB4, 0x80, 0x10 (i.e. a bitstring in BACnet
®
order)
•analog-input, analog-output
•analog-value
•binary-input, binary-output
•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 1-127 (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
W
Proprietary property #1001 •Programmable
•This proprietary property represents the MS/TP baud rate
•Values are 0 (auto), 9600, 19200, 38400, 57600, 76800
•
Default is Auto
W
Proprietary property #1002 •Programmable
•This proprietary property represents the 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 is 15 minutes
W

SARB Networkable IAQ Room Sensors
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Object Table Information
The humidifiers use the following BACnet object tables, categorized on the basis of their ID. 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
Analog Input (AI)
ID Name Description Writable Notes
AI.1 StatusAI1 Analog Input 1 Out of service
0-10Volt
Resolution 0.01Volt
Analog Value (AV)
ID Name Description Writable Notes
AV.9 StatusCO2Level CO2 sensor reading in PPM Present Value
Out of Service
0-2000 PPM
Resolution: 1 PPM
AV.10 StatusTempLevel Temperature sensor reading Present Value
Out of Service
-40 to125ºC or -40 to 257ºF
Resolution: 0.1ºC/0.2ºF
AV.11 StatusHumidityLevel Humidity sensor reading Present Value
Out of Service
0-100 %RH
Resolution: 0.1 %RH
AV.13 StatusVOCLevel VOC sensor reading in PPB
Present Value
Out of Service
0-1000 PPB
Resolution: 1 PPB
AV.14 StatusOutdoorTempLevel Temperature sensor reading
at AI1 if MSV.18 is set to 1.
Present Value
Out of Service
-40 to125ºC or -40 to 257ºF
Resolution: 0.1ºC/0.2ºF
AV.15 StatusEnthalpy Calculated enthalpy Present Value Unit: kJ/kg, -327.00 kJ/kg to 327.00 kJ/kg
Unit: BTU/lb, -133 BTU/lb to 148 BTU/lb
AV.16 StatusDewPoint Calculated dew point Present Value
-40 to125ºC or -40 to 257ºF
Resolution: 0.1ºC/0.2ºF
AV.25
CfgCO2Calibration
CO2 sensor offset
Present Value
-200 to 200 ppm
AV.26
CfgVOCCalibration
VOC sensor offset
Present Value
-100 to 100 ppm
AV.27 CfgTempCalibration Temperature sensor offset Present Value -10ºC to 10ºC or -18ºF to 18ºF
AV.28
CfgHumidityCalibration
Humidity sensor offset
Present Value
-10% to 10%
AV.30 CfgOutdoorTempCalibration
Temperature sensor offset at
AI1 if MSV.18 is set to 1.
Present Value -10ºC to 10ºC or -18ºF to 18ºF
Binary Input (BI)
ID Name Description Writable Notes
BI.1
StatusBI1 Binary Input 1 reading Out of Service 0 = Open, 1 = Close
Analog Output (AO)
ID Name Description Writable Notes
AO.1 StatusAO1 Analog output 1
Present Value
Relinquish Default
0% to 100%
AO.2 StatusAO2 Analog output 2
Present Value
Relinquish Default
0% to 100%
Binary Output (BO)
ID Name Description Writable Notes
BO.1 StatusBO1 Binary output 1
Present Value
Relinquish Default
0 = Open, 1 = Close
BO.2 StatusBO2 Binary output 2
Present Value
Relinquish Default
0 = Open, 1 = Close

SARB Networkable IAQ Room Sensors
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Binary Value (BV)
ID Name Description Writable Notes
BV.9
CfgDisplayCO2Level
Display CO2 in RUN mode
Present Value
0 = No, 1 = Yes
BV.10
CfgDisplay VOCLevel
Display VOC in RUN mode
Present Value
0 = No, 1 = Yes
BV.11
CfgDisplayTemLevel
Display Temp in RUN mode
Present Value
0 = No, 1 = Yes
BV.12
CfgDisplayHumidityLevel
Display %RH in RUN mode
Present Value
0 = No, 1 = Yes
BV.16
CfgEnableBacklight
Activate LCD backlight
Present Value
0 = Off, 1 = On
BV.17 CfgEnableAuto-Scroll
Activate autoscroll of sensor
readings in RUN mode
Present Value 0 = Off, 1 = On
BV.18 CfgKeypadUpperLeftLock Lock the star (*) button Present Value
0 = Off, 1 = On (If set to “On”, functionality of this
button will not be available.)
BV.19 CfgKeypadBottomLeftLock Lock the enter/return button Present Value
0 = Off, 1 = On (If set to “On”, functionality of
these buttons will not be available.)
BV.20 CfgKeypadArrowsLock Lock the arrow buttons Present Value 0 = Off, 1 = On (If set to “On”, functionality of
these buttons will not be available.)
BV.21 CfgProgramModeLock Lock all the button on the
thermostat
Present Value 0 = Off, 1 = On (If set to “On”, functionality of
these buttons will not be available.)
Multi-State Value (MSV)
ID Name Description Writable
Property Notes
MSV.7 CfgObjectListMode Object list mode Present Value
1= Integrator
2= Advanced
3= Factory
MSV.18 AI1Type Selected analog input 1 mode Present Value
1= Off
2= 10K Thermistor
3= 0_10Volt
MSV.19 Local Units Unit type displayed on the
thermostat Present Value 1= Metric 2= Imperial
MSV.20 Network Units Unit type displayed via
network
Present Value 1= Metric
2= Imperial

SARB Networkable IAQ Room Sensors
Specification and Installation Instructions
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Modbus Protocol
The uses Modbus communication protocol over serial line in the RTU mode and provides a Modbus network interface
between client devices and Neptronic devices. These instructions assume that you are familiar with Modbus
terminology. The following are the requirements for Modbus:
•Data Model. The controller Modbus server data model uses only the Holding Registers table.
•Function Codes. The controller Modbus server supports a limited function codes subset comprising:
oRead Holding Registers (0x03)
oWrite Single Register (0x06)
oWrite Multiple Registers (0x10)
•Exception Responses. The controller Modbus server supports the following exception codes:
oIllegal function
oIllegal data address
oIllegal data value
oSlave device busy
•Serial Line. The controller Modbus over serial line uses RTU transmission mode over a two-wire configuration
RS485 (EIA/TIA-485 standard) physical layer.
oThe physical layer can use fixed baud rate selection or automatic baud rate detection (default) as per the
Modbus Auto Baud Rate device menu item or holding register index 1.
oThe supported baud rates are 9600, 19200, 38400, and 57600.
oThe physical layer also supports variable parity control and stop bit configuration as per the Modbus Comport
Config device menu item or holding register index 2.
oIn auto baud rate configuration, if the device detects only consecutive bad frames (2 or more) for one second
with any given baud rate, it will reinitialize itself to the next baud rate.
•Addressing. The controller device only answers at the following address:
oThe device's unique address (1 to 246) that can be set through the device menu or through holding register
index 0.
Table Glossary
Name Description Name Description
W Writable Register ASCII For registers containing ASCII (8-bit) characters
RO Read Only Register MSB Most Significant Byte
Unsigned For range of values from 0 to 65,535, unless otherwise
specified
LSB Least Significant Byte
Signed For range of values from -32,768 to 32,767, unless
otherwise specified
MSW Most Significant Word
Bit String For registers with multiple values using bit mask
(example, flags)
LSW Least Significant Word

SARB Networkable IAQ Room Sensors
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Holding Register Table
Regi
ster
Index
Description Data
Type Range Writa
ble
40000MSB = Neptronic ID
LSB = Modbus address of current device Unsigned MSB = 18 LSB = 1-246 W
40001MSTP Baud Rate Unsigned
Scale 100
0, 9600, 19200, 38400, or 57600, 0 = Auto Baud Rate Detection
Value/100 (e.g. 38400 baud = 384) W
40002Communication port configuration Unsigned
0 = No parity, 2 Stop bits
1 = Even parity, 1 stop bit
2 = Odd parity, 1 stop bit
W
40003Product Name (characters 1 & 2) ASCII 1 to 65535 | MSB = char 1, LSB = char 2 W
40004Product Name (characters 3 & 4) ASCII 1 to 65535 | MSB = char 3, LSB = char 4 W
40005Product Name (characters 5 & 6). ASCII 1 to 65535 | MSB = char 5, LSB = char 6 W
40006Product Name (characters 7 & 8). ASCII 1 to 65535 | MSB = char 7, LSB = char 8 W
40007Actual firmware version Unsigned 1 to 65535 (e.g. 101) RO
40008Actual ROM version Unsigned 1 to 65535 (e.g. 123) RO
40009Alarms Status 1 Bit String [B0 – B15]: Reserved RO
40010 Alarms Status 2 Bit String [B0 – B15]: Reserved RO
40011 CO2 Level Unsigned 0 to 2000 ppm RO
40012 VOC Level Unsigned 0 to 1000 ppb RO
40013 Temperature Level Signed
Scale 10
Unit: ºC/ºF, Range: -40ºC to 125ºC or -40ºF to 257ºF
Value x 10 (e.g. 23°C = 230 or 33ºF = 330) RO
40014 Humidity Level Signed
Scale 10
Unit: % RH, Range: 0%RH to 100%RH
Value x 10 (e.g. 30%RH = 300) RO
40015 Reserved
40016 Enthalpy Signed
Scale 100
Unit: kJ/kg, -327 kJ/kg to 327 kJ/kg
Unit: BTU/lb, -133 BTU/lb to 148 BTU/lb
Value x 100 (e.g. 105.75 kJ/kg = 10575)
RO
40017 Dew Point Signed
Scale 10
Unit: ºC/ºF, Range: -40ºC to 125ºC or -40ºF to 257ºF
Value x 10 (e.g. 23°C = 230 or 33ºF = 330) RO
40018 External Temperature Level Signed
Scale 10
Unit: ºC/ºF, Range: -40ºC to 125ºC or -40ºF to 257ºF
Value x 10 (e.g. 23°C = 230 or 33ºF = 330)
Register 32 must be set to 10kOhms
RO
40019 AI1 Unsigned
Scale 100
0 to 1000
Value x 100 (e.g. 2 mV = 200)
Register 32 must be set to 0-10V
RO
40020 BI1 Unsigned 0 = Opened; 1 = Closed RO
40021 CO2 Calibration Signed -200 to 200 ppm W
40022 VOC Calibration Signed -100 to 100 ppb W
40023 Temperature Calibration Signed
Scale 100
Unit: ºC/ºF, Range: -10ºC to 10ºC or -18ºF to 18ºF
Value x 100 (e.g. 5°C = 500 or 10ºF = 1000) W
40024 Humidity Calibration Signed
Scale 100
Unit: %, Range: -10% to 10%
Value x 100 (e.g. 5% = 500) W
40025 Reserved
40026 External Temperature Sensor Calibration Signed
Scale 100
Unit: ºC/ºF, Range: -10ºC to 10ºC or -18ºF to 18ºF
Value x 100 (e.g. 5°C = 500 or 10ºF = 1000)
Register 32 must be set to 10kOhms
W
40027 AO1 Unsigned
Scale 10
Unit: %, Range: 0% to 100%
Value x 10 (e.g. 30% = 300) W