Neptronic TUCB24C6X2 User manual

TUCB-Modbus Guide-151201.docx
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Universal Wall-Mount Controller
TUCB Series
Modbus Communication Module User Guide
TUCB24C6X2 (6 binary/2 analog outputs)
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Modbus Communication Module User Guide
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Contents
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Introduction.......................................................................................................................................................................1
HoldingRegistersTable......................................................................................................................................................2
TableGlossary................................................................................................................................................................2
HoldingRegisterTable...................................................................................................................................................2
Notes................................................................................................................................................................................14
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Introduction
The TUCB Series Modbus Communication Module User Guide provides information for using Neptronic®TUCB
communication feature. The TUCB uses Modbus communication protocol over serial line in the RTU mode and
provides a Modbus network interface between client devices and Neptronic TUCB Series devices.
The TUCB Series Modbus Guide assumes that you are familiar with Modbus terminology.
The following are the requirements for Modbus:
•Data Model. The TUCB Modbus server data model uses only the Holding Registers table.
•Function Codes. The TUCB Modbus server supports a limited function codes subset comprising:
oRead Holding Registers (0x03)
oWrite Single Register (0x06)
oWrite Multiple Registers (0x10)
•Exception Responses. The TUCB Modbus server supports the following exception codes:
oIllegal data address
oIllegal data value
oSlave device busy
•Serial Line. The TUCB 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 TUCB 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.
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Holding Registers Table
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
Holding Register Table
Register
Index Description Data Type Range Writable
40000Address - Neptronic ID and Modbus address of current
device. Unsigned MSB = 22, 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 1= No parity, 2 Stop bits, 2= Even parity, 1 stop bit, 3= Odd parity, 1 stop bit W
40003ProdName_87, characters 8-7 of 8 name characters. ASCII MSB = 84 (T), LSB = 85 (U) W
40004ProdName_65, characters 6-5 of 8 name characters. ASCII MSB = 67 (C), LSB = 66 (B) W
40005ProdName_43, characters 4-3 of 8 name characters. ASCII MSB = 50 (2), LSB = 52 (4) W
40006ProdName_21, characters 2-1 of 8 name characters. ASCII MSB = 32 (Space), LSB = 0 (Null) W
40007Controller Product_Version, actual firmware version. Unsigned 1 to 65535 (e.g. 110) RO
40008Controller parameters version. Unsigned 1 to 65535 (e.g. 102) RO
40009System Status 1. Bit String
[B1, B5, B7 – B15]: Reserved
B0: System operation
0 = Normal, 1 = Fault
B2: System override by NSB or OCC
0 = Normal, 1 = OFF
B3: ChangeOverMode
0 = Cooling, 1 = Heating
B4: AL_FlowSwitch
0 = No alarm, 1 = Alarm activated
B6: AL_DirtyFilter
0 = No alarm, 1 = Alarm activated
RO

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Register
Index Description Data Type Range Writable
40010 System Status 2. Bit String
[B1, B3-B6, B14]: Reserved
B0: Selector Switch Status
0 = Remote Mode, 1 = Local Mode
B2: CO2 Alarm
0 = Normal, 1 = Alarm
B7: AL_Override
0 = Off, 1 = On
B8: AL_WindowOpened
0 = Off, 1 = On
B9: AL_DoorOpened
0 = Off, 1 = On
B10: AL_BI1
0 = Off, 1 = On
B11: AL_BI2
0 = Off, 1 = On
B12: AL_AI1
0 = Off, 1 = On
B13: AL_AI2
0 = Off, 1 = On
B15: AL_OverHeat
0 = Off, 1 = On
RO
40011 Internal temperature sensor reading. Signed
Scale 100 Unit: ºC/ºF, Range: 0ºC to 50ºC or 32ºF to 122ºF, Value x 100 (e.g. 23°C = 2300) RO
40012 External temperature sensor reading. Signed
Scale 100 Unit: ºC/ºF, Range: -40ºC to 100ºC or -40ºF to 212ºF, Value x 100 (e.g. 23°C = 2300) RO
40013 Changeover temperature sensor reading. Signed
Scale 100 Unit: ºC/ºF, Range: -40ºC to 100ºC or -40ºF to 212ºF, Value x 100 (e.g. 23°C = 2300) RO
40014 Control temperature reading. Signed
Scale 100 Unit: ºC/ºF, Range: -40ºC to 100ºC or -40ºF to 212ºF, Value x 100 (e.g. 23°C = 2300) W
40015 Internal humidity sensor reading.∗
Not available on all models.
Unsigned
Scale 10 Unit: % RH, Range: 10%RH to 90%RH, Value x 10 (e.g. 30%RH = 300) RO
40016 External humidity sensor reading. Unsigned
Scale 10 Unit: % RH, Range: 10%RH to 90%RH, Value x 10 (e.g. 30%RH = 300) RO
40017 Analog input 1 reading. Signed
Scale 100
Unit: Volts or ºC/ºF, Range: 0V to 10V, -40 to 100ºC or -40 to 212ºF,
0 (open), 1 (close). Value x 100 (e.g. 3 V = 300/18°C = 1800) RO
40018 Analog input 2 reading. Signed
Scale 100
Unit: Volts or ºC/ºF, Range: 0V to 10V, -40 to 100ºC or -40 to 212ºF,
0 (open), 1 (close). Value x 100 (e.g. 3 V = 300/18°C = 1800) RO
40019 CO2 sensor value in ppm. Signed
Scale 1 100 to 5000, Value/1 (e.g. 500 ppm = 500) RO

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Register
Index Description Data Type Range Writable
40020 Binary input statuses of 2 binary inputs. Bit String
[B2-B15]: Reserved
B0: Binary Input 1
0 = Open, 1 = Close
BI: Binary Input 2
0 = Open, 1 = Close
RO
40021 Actual system occupancy state. Bit String 1= NoOccupancy, 2= Occupancy, 3= Override RO
40022 Actual night setback state of the system. Bit String 1= Day, 2= Night, 3= Override RO
40023 Actual heating demand of ramp 1. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40024 Actual heating demand of ramp 2. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40025 Actual cooling demand of ramp 1. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40026 Actual cooling demand of ramp 2. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40027 Actual changeover demand. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40028 Actual fan demand. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40029 Actual dehumidification demand. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40030 Actual humidification demand. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) RO
40031 CL_HT_SwitchTimerCount - countdown until the system is
able to swap the demand.
Unsigned
Scale 1 Unit: Seconds, Range: 0 to 7200 seconds, Value/1 (e.g. 100 secs =100) RO
40032 Analog output 1 value. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) W
40033 Analog output 2 value. Unsigned
Scale 10 Unit: %, Range: 0% to 100%, Value x 10 (e.g. 100% = 1000) W
40034 Binary output - 6 relays output status. Bit String
[B6-B15]: Reserved
B0: Binary Output 1
0 = Open, 1 = Close
B3: Binary Output 4
0 = Open, 1 = Close
B4: Binary Output 5
0 = Open, 1 = Close
W

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Register
Index Description Data Type Range Writable
B1: Binary Output 2
0 = Open, 1 = Close
B2: Binary Output 3
0 = Open, 1 = Close
B5: Binary Output 6
0 = Open, 1 = Close
40035 System command. Bit String
[B2, B6, B9 - B15]: Reserved
B0: Cfg_ServiceDisplayAddress
0 = Normal, 1 = Display address on LCD
B1: Cfg_CoolingRampLock
0 = Off, 1 = On
B3: Cfg_HeatingRamp1Lock
0 = Off, 1 = On
B4: Cfg_HeatingRamp2Lock
0 = Off, 1 = On
B5: Cfg_ChangeOverRampLock
0 = Off, 1 = On
B7: Cfg_HumidifyRampLock
0 = Off, 1 = On
B8: Cfg_DehumidifyRampLock
0 = Off, 1 = On
W
40036 System mode status. Bit String
1 = Auto [Register 40074 allows Auto Mode (1 or 5)]
2 = Heating [Register 40074 allows Heating Mode (1, 2 or 4)]
3 = EMH [Register 40041 Bits 2 and 1 = On and Enable (1) and
Register 40074 allows Heating Mode (1, 2 or 4)]
4 = Cooling [Register 40074 allows Cooling Mode (1, 3 or 4)]
5 = Fan [Register 40040 Bit 12 = Advanced (1)]
6 = Off [Register 40039 Bit 8 = Enable (0)]
W
40037 Fan speed selection by user. Bit String 1= Auto, 2= Low, 3= Med, 4= High W
40038 Temperature setpoint in occupancy or day mode. Signed
Scale 10
Unit: ºC/ºF, Range: min to max setpoint
Value x 10 (e.g. 18°C = 180) W
40039 System option1. Bit String
[B5-B6]:Reserved
B0: Cfg_TempUnitTstat
0 = ºC, 1 = ºF
B1: Cfg_TempUnitModbus
0 = ºC, 1 = ºF
B2: Cfg_TempSetPointLock
0 = Off, 1 = On
B9: Cfg_KeyPadBottomLeftLock
0 = Off, 1 = On
B10: Cfg_KeyPadUpperLeftLock
0 = Off, 1 = On
B11: Cfg_KeyPadArrowsLock
0 = Off, 1 = On
W

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Register
Index Description Data Type Range Writable
B3: Cfg_HumSetPointLock
0 = Off, 1 = On
B4: Cfg_ProgramModeLock
0 = Off, 1 = On
B7: AL_FreezeProtection
0 = Off, 1 = On
B8: Cfg_UserSysOffModes
0 = Enable, 1 = Disable
B12: Cfg_UserFanAutoMode
0 = Enable, 1 = Disable
B13: Cfg_ NightOrNoOccMode
0 = Setpoint, 1 = OFF
B14: Cfg_HumControlSource∗
0 = Intern Sensor, 1 = Extern Sensor
Not available on all models.
B15: Time Mode
0 = 24h, 1 = 12h
40040 System option2. Bit String
[B13-B15]:Reserved
B0: Cfg_WindowOpenedMode
0 = Setpoint, 1 = OFF
B1: Cfg_DoorOpenedMode
0 = Setpoint, 1 = OFF
B2: Baud Rate
0 = Auto, 1 = Manual
B3: Cfg_ActivateSchedule
0 = Off, 1 = On
B4: Cfg_AnalogOutput1Direction
0 = Direct, 1 = Reverse
B5: Cfg_AnalogOutput2Direction
0 = Direct, 1 = Reverse
B6: Cfg_BinaryOutput1Direction
0 = Direct, 1 = Reverse
B7: Cfg_BinaryOutput2Direction
0 = Direct, 1 = Reverse
B8: Cfg_BinaryOutput3Direction
0 = Direct, 1 = Reverse
B9: Cfg_BinaryOutput4Direction
0 = Direct, 1 = Reverse
B10: Cfg_BinaryOutput5Direction
0 = Direct, 1 = Reverse
B11: Cfg_BinaryOutput6Direction
0 = Direct, 1 = Reverse
B12: Cfg_ FanSpeedOption
0 = Standard, 1 = Advanced (OE1)
W
40041 System option3. Bit String
[B6-B15]:Reserved
B0: DAYLIGHT_SAVINGS_STATUS
0 = Normal, 1 = Summer
B3: Cfg_ReversingValve (O/B)
0 = O, 1 = B
B4: Cfg_EMHAutoMode
0 = No, 1 = Yes
W

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Register
Index Description Data Type Range Writable
B1: Cfg_EMHOutput
0 = Disable, 1 = Enable
B2: Cfg_ HeatPumpMode
0 = Off (General Unit), 1 = On (HeatPump)
B5: Cfg_Y2Output
0 = Disable, 1 = Enable
40042 System option4. Bit String [B0-B15]:Reserved W
40043 Display information. Bit String 1= Temperature and Demand, 2= Setpoint and Demand, 3= Temperature Only,
4= Setpoint Only, 5= Off W
40044 Temperature control source. Bit String 1= Network Temp, 2= Intern Temp, 3= Extern Temp W
40045 Network fallback timeout. Unsigned
Scale 1 Unit: Minutes, Range: 0 to 60, Value/1 (e.g. 30 mins = 30) W
40046 Minimum occupancy/day setpoint. Signed
Scale 10
Unit: ºC/ºF, Range: 10ºC to max or 50ºC to max
Value x 10 (e.g. 18°C = 180) W
40047 Maximum occupancy/day setpoint. Signed
Scale 10
Unit: ºC/ºF, Range: min to 40ºC or min to 104ºF
Value x 10 (e.g. 18°C = 180) W
40048 Cooling temperature setpoint in unoccupied or night mode. Signed
Scale 10
Unit: ºC/ºF, Range: 10ºC to 40ºC or 50ºF to 104ºF
Value x 10 (e.g.18°C = 180) W
40049 Heating temperature setpoint in unoccupied or night mode. Signed
Scale 10
Unit: ºC/ºF, Range: 10ºC to 40ºC or 50ºF to 104ºF
Value x 10 (e.g. 18°C = 180) W
40050 Heating proportional band for ramp 1. Unsigned
Scale 10
Unit: depends on system unit, 0.5ºC to 5ºC or 1ºF to 9Fº
Value x 10 (e.g. 1ºC = 10) W
40051 Heating proportional band for ramp 2. Unsigned
Scale 10
Unit: depends on system unit, 0.5ºC to 5ºC or 1ºF to 9Fº
Value x 10 (e.g. 1ºC = 10) W
40052 Cooling proportional band for ramp 1. Unsigned
Scale 10
Unit: depends on system unit, 0.5ºC to 5ºC or 1ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40053 Cooling proportional band for ramp 2. Unsigned
Scale 10
Unit: depends on system unit, 0.5ºC to 5ºC or 1ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40054 Change over proportional band. Unsigned
Scale 10
Unit: depends on system unit, 0.5ºC to 5ºC or 1ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40055 Heating dead band for ramp 1. Unsigned
Scale 10
Unit: depends on system unit, 0ºC to 5ºC or 0ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40056 Heating dead band for ramp 2. Unsigned
Scale 10
Unit: depends on system unit, 0ºC to 5ºC or 0ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W

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Register
Index Description Data Type Range Writable
40057 Cooling dead band for ramp 1. Unsigned
Scale 10
Unit: depends on system unit, 0ºC to 5ºC or 0ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40058 Cooling dead band for ramp 2. Unsigned
Scale 10
Unit: depends on system unit, 0ºC to 5ºC or 0ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40059 Change over dead band. Unsigned
Scale 10
Unit: depends on system unit, 0ºC to 5ºC or 0ºF to 9ºF
Value x 10 (e.g. 1ºC = 10) W
40060 Change over setpoint. Signed
Scale 10
Unit: depends on system unit, 10ºC to 40ºC or 50ºF to 104ºF
Value x 10 (e.g. 12ºC = 120) W
40061 Fan time out in seconds. Unsigned
Scale 1 Unit: Seconds, Range: 0 to 255 seconds, Value/1 (e.g.100 secs = 100) W
40062 Fan damping factor in seconds. Unsigned
Scale 1 Unit: Seconds, Range: 0 to 255 seconds, Value/1 (e.g.100 secs = 100) W
40063 Heating integral time factor in seconds. Unsigned
Scale 1 Unit: Seconds, Range: 0 to 250 seconds, Value/1 (e.g.100 secs = 100) W
40064 Cooling integral time factor in seconds. Unsigned
Scale 1 Unit: Seconds, Range: 0 to 250 seconds, Value/1 (e.g.100 secs = 100) W
40065 CL_HT_SwitchTimer - Delay between cool and heat or vice
versa.
Unsigned
Scale 1 Unit: Minutes, Range: 0 to 120 minutes, Value/1 (e.g.100 mins = 100) W
40066 Cooling anticycle delay in minutes. Unsigned
Scale 1 Unit: Minutes, Range: 0 to 15 minutes, Value/1 (e.g.10 mins = 10) W
40067 NSB override delay in minutes. Unsigned
Scale 1 Unit: Minutes, Range: 0 to 180 minutes, Value/1 (e.g.100 mins = 100) W
40068 Unoccupied override delay in minutes. Unsigned
Scale 1 Unit: Minutes, Range: 0 to 180 minutes, Value/1 (e.g.100 mins = 100) W
40069 Occupancy minimum time in minutes. Unsigned
Scale 1 Unit: Minutes, Range: 0 to 240 minutes, Value/1 (e.g.100 mins = 100) W
40070 Unoccupied override delay count down in minutes. Unsigned
Scale 1 Unit: Minutes, Range: 0 to 180 minutes, Value/1 (e.g.100 mins = 100) W
40071 Fan mode (speed) in unoccupied or NSB mode. Bit String 1= Low, 2= Med, 3= High, 4= Auto W
40072 Fan mode (speed) when window is opened (alarm). Bit String 1= Low, 2= Med, 3= High, 4= Auto W
40073 Fan mode (speed) when door is opened (alarm). Bit String 1= Low, 2= Med, 3= High, 4= Auto W
40074 System control mode. Bit String 1= Auto, 2= Heat, 3= Cool, 4= Heat or Cool, 5= Auto Lock W
40075 Override System occupancy/NSB mode. Bit String 1= Locally, 2= OFF, 3= Occupied, 4= Unoccupied, 5= Day, 6= Night W