Modbus Registers

The list of Modbus registers is applicable for the following actuators family:

• MVE-2-RS

• MVC-2-RS

• EBV

If the functionality does not apply to the selected actuator the connected register is not applicable.

The database is divided into the following sections:

• Common Registers Section: It contains general information about the actuators.

• Configuration Section: it contains the configuration registers area.

• Diagnostic Section: it contains registers useful for diagnostics and error check.

• Input/Output Section : it contains registers for command and feedback position.

• Flow Rate Section: it contains registers for flow rate functions.

• Setpoints Section: it contains registers for Temperature sensors setpoint.

• Power Limit/Control Section: it contains registers for power control and limits loop.

• Temperature Sensors Section: it contains registers for Temperature sensors reading.

• Energy Heating/Cooling Section: it contains registers for the Energy function.

• Clock Function Section: it contains registers for clock setting.

• Output Loops Section: it contains registers for the main loop output value.

• Power Section: it contains registers for the power function.

• Loop Parameters Section: it contains registers for main loop parameters.

All registers and values are described in the following table:

Common Registers Section

Version and module type

This register shows the firmware version (Most Significant Byte) and the device ID of the actuator (Least Significant Byte).

Modbus register: 40001

Module Address

Defines the Modbus address of the device from 1 to 255.

Modbus register: 30002

BACnet object: Network port, object ID: 0, properties: MAC address.

Counter of Received Frames (LSW)

This register contains the least significant word of the counter of received frames from the last powering-up or module reset.

Modbus register: 30004

Counter of Received Frames (MSW)

This register contains the most significant word of the counter of received frames from the last powering-up or module reset.

Modbus register: 30005

Counter of Frames with Error (LSW)

This register contains the least significant word of the counter of frames with error from the last powering-up or module reset.

Modbus register: 30006

Counter of Frames with Error (MSW)

This register contains the most significant word of the counter of frames with error from the last powering-up or module reset.

Modbus register: 30007

Counter of Sent Frames (LSW)

This register contains the least significant word of the counter of sent frames from the last powering-up or module reset.

Modbus register: 30008

Counter of Sent Frames (MSW)

This register contains the most significant word of the counter of sent frames from the last powering-up or module reset.

Modbus register: 30009

Up Time (LSW)

This register contains the least significant word of the uptime counter from the last powering-up or module reset.

Modbus register: 30012

BACnet object: type Analog value, object ID: 0, properties: Present value.

Up Time (MSW)

This register contains the most significant word of the uptime counter from the last powering-up or module reset.

Modbus register: 30013

BACnet object: type Analog value, object ID: 0, properties: Present value.

Source of last device reset

Source of last device reset

This register shows the source of the last reset, according to the table below:

Selection for source of the last reset

Modbus register: 30014

BACnet device ID

This register contains the least important two bytes of the BACnet ID value.

Modbus register: 40134

BACnet Device ID

This register contains the most important two bytes of the BACnet ID value.

Modbus register: 40135

Baud Rate

It defines the possibility to set the modbus protocol baud rate according to the following possibilities:

Selection of the Baud rate

Modbus register: 40136

BACnet object: Network port, object ID: 0, properties: link speed.

Stop Bits

Defines the number of stop bits in the Modbus communication parameters according to the following possibilities:

Stop bits configuration for Modbus communication

Modbus register: 40137

Data Bits

Defines the number of stop bits in the Modbus communication parameters according to the following possibilities:

Data bits configuration for Modbus communication

Parity Bit

Defines the value of parity bit in the Modbus communication parameters according to the following possibilities:

Parity bit configuration for Modbus communication

Modbus register: 40139

Response delay

This register shows the delay (in ms) before sending the response to the master. The default value is 0.

Modbus register: 40140

Auxiliary register

This auxiliary register is used for detecting the first device activation, 0x5555=device activated (it’s a read-only register).

Modbus register: 30190

Configuration Section

Device version designation

Defines the device version according to the table below (for MVE-2-RS):

Selection for MVE-2-RS actuator model

Defines the device version according to the table below (for EBV):

Selection for EBV actuator model

Hardware version

Define the Hardware version of the selected actuator model (to know the hardware version, the register value must be divided by 10, e.g 12₁₀ = 1.2).

Modbus register: 30302

Bootloader version

Define the Bootloader version of the selected actuator model (to know the bootloader version, the most significant byte must be divided by 10, the least significant byte represents the sub-version. Example: A08₁₆ ➔ A₁₆ = 10₁₀ = 1.0 and 08₁₆ = 8 ➔ 1.0.8).

Modbus register: 30303

Firmware version (extended)

Define the Firmware version of the selected actuator model (to know the extended firmware version, the most significant byte must be divided by 10, the least significant byte represents the sub-version. Example: 1401₁₆ ➔ 14₁₆ = 20₁₀ = 2.0 and 01₁₆ = 1 ➔ 2.0.1).

Modbus register: 30304

Serial number 1

This value is set by production.

Modbus register: 30305

Serial number 2

This value is set by production.

Modbus register: 30306

Serial number 3

This value is set by production.

Modbus register: 30307

Serial number 4

This value is set by production.

Modbus register: 30308

Maximum flow setting

Define the caliber position according to the following values:

Selection for Max flow setting

Modbus register: 41005

BACnet object: multi state value, object ID: 9, properties: present value.

Type of Control

Defines the type of actuator command signal (selectable via Modbus/BACnet only if dip switches are disabled):

Type of control

The 4-20mA command can only be set via dip switches.

Modbus register: 41006

BACnet object: multi state value, object ID: 0, properties: present value.

Command signal action and setting of the emergency return direction

Defines the action type of the command signal (direct or reverse action) and the direction of the actuator in case of emergency return (function present only for models with emergency return).

Selection of the action and failsafe direction of the actuator (if dip switches are disabled) via Modbus

Modbus register: 41007

BACnet object:

Selection of the action and failsafe direction of the actuator (if dip switches are disabled) via BACnet

Forced Calibration of the stroke

Defines the possibility of performing forced calibration of the stroke (by writing the bit0 to 1). At the end of the calibration the bit is automatically reset.

Modbus register: 41008

BACnet object: binary value, object ID: 2, properties: present value.

Enable Jumper for emergency return

Defines the enabling of the jumper for selecting the direction in case of emergency return according to the following table:

Enabling of the jumper of the emergency return board

Modbus register: 41009

BACnet object: binary value, object ID: 3, properties: present value.

Changeover setting

This register defines the temperature loop action according to the following table:

Changeover setting

Modbus register: 41010

BACnet object: binary value, object ID: 1, properties: present value.

Temperature Probe Selection

This register defines the temperature sensor to use in the loops according to the following table:

Temperature probe selection

Modbus register: 41011

BACnet object: multi state value, object ID: 2, properties: present value.

Valve characteristic configuration

This register allows to set the valve movement: linear (0) or equipercentage (EQP) (1).

Modbus register: 41013

BACnet object: multi state value, object ID: 3, properties: present value.

Functions enable

Defines the enabling of the IC ACTUATOR system operating loops according to the following table:

Functions enable via Modbus

Modbus register: 41014

BACnet object:

Functions enable via BACnet

Functions status

Defines the status of the IC ACTUATOR system operating loops according to the following table:

Functions status

Modbus register: 31015

BACnet object: multi-state value, object ID: 5, properties: present value.

Minimum Opening Valve (%)

This register contains the minimum opening valve value (expressed as a percentage) when the limit loops are active.

Modbus register: 41016

BACnet object: analog value, object ID: 1, properties: present value.

DIP Switches & Push Button & Jumper status

Defines the status of the dip switches, the push button (used for the forced calibration of the stroke) and the jumper (used to define the direction of the emergency return) according to the following table:

Information about the status of dip switches, push button and the jumper on the emergency return board

Modbus register: 31017

BACnet object: analog value, object ID: 2, properties: present value.

Valve Type

Define the valve type according to the following table:

Selection for valve type

Modbus register: 41018

BACnet object: multi state value, object ID: 6, properties: present value.

Valve Stroke (mm)

This register contains the calculated valve stroke value. The value stored in the register is multiplied by 100. A value of 500 corresponds to a stroke of 5mm.

Modbus register: 41019

BACnet object: analog value, object ID: 3, properties: present value (read only).

Actuator reset

Through this register it is possible to perform a forced reset of the system by forcing its value to 1. After a few seconds automatically this value is set to 0.

Modbus register: 41034

BACnet object: binary value, object ID: 20, properties: present value.

BACnet object: Device object, into property xxxx write the value 0x3FFF.

Restore Factory Settings

This register allows to restore the default setting and EEPROM memory setting 1.

Writing the value to 1 will reset the memory area to the default values.

Modbus register: 41187

BACnet object: Device object, into property xxxx write the value 0x3FFF.

Force Fully Close

This function allows to fully close the valve even if temperature or power function are active.

To do this write 1 into the register.Modbus register: 41188

BACnet object: binary value, object ID: 17, properties: present value.

Force Fully Open

This function allows to fully open the valve even if temperature or power function are active.

To do this write 1 into the register Modbus register: 41189

BACnet object: binary value, object ID: 18, properties: present value.

Test Temperature Mode

This function allows to write manually temperature values into the supply and return temperature registers. When test temperature mode is activated, the values read from temperature sensors are not stored into the registers.

To do this write 1 into the register Modbus register: 41190

BACnet object: binary value, object ID: 19, properties: present value.

Diagnostic Section

Over voltage Events

The system over voltage events is stored in this address, that is:

• 24V + 20%

• 230V + 20%

Default value is 0 and will start from 1 with the first error event.

If the value of the register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41020

BACnet object: analog value, object ID: 4, properties: present value.

Under voltage Events

The system under voltage events is stored in this address, that is:

• 24V – 20%

• 230V – 20%

Default value is 0 and will start from 1 with the first error event.

If the value of the register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41021

BACnet object: analog value, object ID: 5, properties: present value.

Number of full opening events

This address stores the valve full opening events. The default value is 0 and will start from 1 which corresponds to 10 total valve opening (in order to avoid continuous writing on the memory that could damage the component). If the value of the Register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41022

BACnet object: analog value, object ID: 6, properties: present value.

Number of full closing events

This address stores the valve full closing events. The default value is 0 and will start from 1 which corresponds to 10 total valve opening (in order to avoid continuous writing on the memory that could damage the component). If the value of the register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41023

BACnet object: analog value, object ID: 7, properties: present value.

Unexpected stall events within the stroke

Unexpected stall events within the valve stroke are stored in this address. The default value is 0 and will start from 1 which corresponds to 1 unexpected stall event. If the value of the register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41024

BACnet object: analog value, object ID: 8, properties: present value.

Unexpected stall events outside the stroke

This address stores unexpected stall events outside the stroke valve (extra stroke). The default value is 0 and will start from 1 which corresponds to 1 unexpected stall event. If the value of the register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41025

BACnet object: analog value, object ID: 9, properties: present value.

Stroke calculation events greater than 60mm

This address stores the calculation events of the stroke greater than 5mm (during the calibration phase). The default value is 0 and will start from 1 which corresponds to 1 calculation event of the stroke less than 5mm. If the value of the Register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41026

BACnet object: analog value, object ID: 10, properties: present value.

Stroke calculation events less than 5mm

This address stores the calculation events of the stroke less than 5mm (during the calibration phase). The default value is 0 and will start from 1 which corresponds to 1 calculation event of the stroke less than 5mm. If the value of the Register reaches the maximum limit (65534 = 0xFFFE) this value will remain in memory.

Modbus register: 41027

BACnet object: analog value, object ID: 11, properties: present value.

Operating states

The operating states of the system are stored in this address according to the following table:

Operating mode of the actuator via Modbus

Modbus register: 31028

BACnet object:

Operating mode of the actuator via BACnet.

Type of error

The types of errors are stored in this address according to the following table:

List of the error type of the actuator

Modbus register: 31029

BACnet object:

List of the error type of the actuator via BACnet.

Input/Output Section

Command Signal from the BMS (0 – 100%)

This register contains the value of the BMS command in the range 0-100%.

The value contained in the register is multiplied by 10 (0-1000). 

Modbus register: 41035

BACnet object: analog value, object ID: 12, properties: present value.

Feedback

This register contains the value of the valve position (feedback) in the range 0-100%.

The value contained in the register is multiplied by 10. 

Modbus register: 31038

BACnet object: analog value, object ID: 13, properties: present value.

Flow Rate Section

Max Flow Rate

Define the nominal flow rate according to the following table (for MVE-2-RS):

Define the nominal flow rate according to the following table (for MVC-2-RS):

For EBV the nominal flow rate is defined as:

Max flow rate for EBV actuator

Modbus register: 41044

BACnet object: analog value, object ID: 14, properties: present value.

Design flow rate

Defining the design flow rate,which has to be between 25% of Qnom and Qnom (for MVE/MVC-2-RS).

For EBV, the minimum design flow rate is defined as:

Min. flow rate for EBV actuator

BACnet object: analog value, object ID: 15, properties: present value.

Modbus register: 41045

Flow rate SP X1

This register is used only if the actuator is assembled with a custom valve and set the first value of the flow rate at 0 (fixed value). This parameter with the following ones allows to building the custom valve characteristic curve.

Modbus register: 41080

BACnet object: analog value, object ID: 16, properties: present value.

Valve position Y1

This register is used only if the actuator is assembled with a custom valve and set the first value of the valve position at 0 (fixed value). This parameter with the following ones allows to building the custom valve characteristic curve.

Modbus register: 41081

BACnet object: analog value, object ID: 17, properties: present value.

Flow rate SP X2

This register is used only if the actuator is assembled with a custom valve and allow to set the second value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41082

BACnet object: analog value, object ID: 18, properties: present value.

Valve position Y2

This register is used only if the actuator is assembled with a custom valve and allow to set the second value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41083

BACnet object: analog value, object ID: 19, properties: present value.

Flow rate SP X3

This register is used only if the actuator is assembled with a custom valve and allow to set the third value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41084

BACnet object: analog value, object ID: 20, properties: present value.

Valve position Y3

This register is used only if the actuator is assembled with a custom valve and allow to set the third value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41085

BACnet object: analog value, object ID: 21, properties: present value.

Flow rate SP X4

This register is used only if the actuator is assembled with a custom valve and allow to set the fourth value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41086

BACnet object: analog value, object ID: 22, properties: present value.

Valve position Y4

This register is used only if the actuator is assembled with a custom valve and allow to set the fourth value of the valve position (in percent) multiplied by ten. This parameter with the other ones, allows to building the custom valve characteristic curve.

Modbus register: 41087

BACnet object: analog value, object ID: 23, properties: present value.

Flow rate SP X5

This register is used only if the actuator is assembled with a custom valve and allow to set the fifth value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41088

BACnet object: analog value, object ID: 24, properties: present value.

Valve position Y5

This register is used only if the actuator is assembled with a custom valve and allow to set the fifth value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41089

BACnet object: analog value, object ID: 25, properties: present value.

Flow rate SP X6

This register is used only if the actuator is assembled with a custom valve and allow to set the sixth value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41090

BACnet object: analog value, object ID: 26, properties: present value.

Valve position Y6

This register is used only if the actuator is assembled with a custom valve and allow to set the sixth value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41091

BACnet object: analog value, object ID: 27, properties: present value.

Flow rate SP X7

This register is used only if the actuator is assembled with a custom valve and allow to set the seventh value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41092

BACnet object: analog value, object ID: 28, properties: present value.

Valve position Y7

This register is used only if the actuator is assembled with a custom valve and allow to set the seventh value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41093

BACnet object: analog value, object ID: 29, properties: present value.

Flow rate SP X8

This register is used only if the actuator is assembled with a custom valve and allow to set the eighth value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41094

BACnet object: analog value, object ID: 30, properties: present value.

Valve position Y8

This register is used only if the actuator is assembled with a custom valve and allow to set the eighth value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41095

BACnet object: analog value, object ID: 31, properties: present value.

Flow rate SP X9

This register is used only if the actuator is assembled with a custom valve and allow to set the nineth value of the flow rate (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41096

BACnet object: analog value, object ID: 32, properties: present value.

Valve position Y9

This register is used only if the actuator is assembled with a custom valve and allow to set the nineth value of the valve position (in percent) multiplied by ten. This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41097

BACnet object: analog value, object ID: 33, properties: present value.

Flow rate SP X10

This register is used only if the actuator is assembled with a custom valve its value of the flow rate is set to the 100 (that multiplied by 10 is 1000) (fixed value). This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41098

BACnet object: analog value, object ID: 34, properties: present value.

Valve position Y10

This register is used only if the actuator is assembled with a custom valve its value is set to the 100 (that multiplied by 10 is 1000) (fixed value). This parameter with the other ones allows to building the custom valve characteristic curve.

Modbus register: 41099

BACnet object: analog value, object ID: 35, properties: present value.

Indicated flow rate

This register calculates the indicated flow rate as m³/h (the value is multiplied by 100) for EBV/MVE-2-RS and as l/h (no multiplied factor) for MVC-2-RS.

Modbus register: 31100

BACnet object: analog value, object ID: 36, properties: present value.

Setpoints Section

Setpoint ΔT Control Heating (°C)

This register contains the value of the setpoint for the heating ΔT control loop.

The value contained in the register is multiplied by 10.

Modbus register: 41101

BACnet object: analog value, object ID: 37, properties: present value.

Setpoint ΔT Control Cooling (°C)

This register contains the value of the setpoint for the cooling ΔT control loop.

The value contained in the register is multiplied by 10.

Modbus register: 41102

BACnet object: analog value, object ID: 38, properties: present value.

Setpoint Supply Temperature Control Heating (°C)

This register contains the value of the setpoint for the heating supply temperature loop.

The value contained in the register is multiplied by 10.

Modbus register: 41103

BACnet object: analog value, object ID: 39, properties: present value.

Setpoint Supply Temperature Control Cooling (°C)

This register contains the value of the setpoint for the cooling supply temperature loop.

The value contained in the register is multiplied by 10. 

Modbus register: 41104

BACnet object: analog value, object ID: 40, properties: present value.

Setpoint Supply Temperature Control Heating (°C)

This register contains the value of the setpoint for the heating return temperature loop.

The value contained in the register is multiplied by 10.

Modbus register: 41105

BACnet object: analog value, object ID: 41, properties: present value.

Setpoint Supply Temperature Control Cooling (°C)

This register contains the value of the setpoint for the cooling return temperature loop.

The value contained in the register is multiplied by 10.

Modbus register: 41106

BACnet object: analog value, object ID: 42, properties: present value.

Setpoint Minimum ΔT Heating (°C)

This register contains the value of the setpoint for the heating ΔT limitation loop.

The value contained in the register is multiplied by 10.

Modbus register: 41107

BACnet object: analog value, object ID: 43, properties: present value.

Setpoint Minimum ΔT Cooling (°C)

This register contains the value of the setpoint for the cooling ΔT limitation loop.

The value contained in the register is multiplied by 10.

Modbus register: 41108

BACnet object: analog value, object ID: 44, properties: present value.

Setpoint Max. Supply Temperature Heating (°C)

This register contains the value of the setpoint for the heating supply temperature limitation loop.

The value contained in the register is multiplied by 10.

Modbus register: 41109

BACnet object: analog value, object ID: 45, properties: present value.

Setpoint Min. Supply Temperature Cooling (°C)

This register contains the value of the setpoint for the cooling supply temperature limitation loop.

The value contained in the register is multiplied by 10. 

Modbus register: 41110

BACnet object: analog value, object ID: 46, properties: present value.

Setpoint Max. Return Temperature Heating (°C)

This register contains the value of the setpoint for the heating return temperature limitation loop.

The value contained in the register is multiplied by 10.

Modbus register: 41111

BACnet object: analog value, object ID: 47, properties: present value.

Setpoint Min. Return Temperature Cooling (°C)

This register contains the value of the setpoint for the cooling return temperature limitation loop.

The value contained in the register is multiplied by 10.

Modbus register: 41112

BACnet object: analog value, object ID: 48, properties: present value.

Power Control/Limit Section

Design Power

This register allows to set the maximum power control, this value is multiplied by 10 (kW).

Modbus register: 41113

BACnet object: analog value, object ID: 49, properties: present value.

Set Max Power Limit

This register allows to set the maximum power limit, this value is multiplied by 10 (kW).

Modbus register: 41114

BACnet object: analog value, object ID: 50, properties: present value.

Temperature Sensors Section

Supply Temperature (°C)

This register contains the supply temperature value. The value stored in the register is multiplied by 10.

If the sensor is disconnected or faulty, the stored value is 5000.

Modbus register: 31115

BACnet object: analog input, object ID: 0, properties: present value.

Return Temperature (°C)

This register contains the return temperature value.

The value stored in the register is multiplied by 10.

If the sensor is disconnected or faulty, the stored value is 5000.

Modbus register: 31116

BACnet object: analog input, object ID: 1, properties: present value.

ΔT (°C)

This register contains the value of the difference between the supply and return temperatures (ΔT).

The value stored in the register is multiplied by 10.

If the supply and/or return temperature sensor is disconnected or faulty, the stored value is 5000.

Modbus register: 31117

BACnet object: analog value, object ID: 51, properties: present value.

Energy Heating/Cooling Section

Instant power

This register calculates the instant power (kW*10).

Modbus register: 31120

BACnet object: analog value, object ID: 52, properties: present value.

Heating energy LSR

This register contains the least significant data of the total calculated heating energy (kWh*10).

Modbus register: 31121

BACnet object: analog value, object ID: 53, properties: present value.

Heating energy MSR

This register contains the most significant data of the total calculated heating energy (kWh*10).

Modbus register: 31122

BACnet object: analog value, object ID: 53, properties: present value.

Cooling energy LSR

This register contains the least significant data of the total calculated cooling energy (kWh*10).

Modbus register: 31123

BACnet object: analog value, object ID: 54, properties: present value.

Cooling energy MSR

This register contains the most significant data of the total calculated cooling energy (kWh*10).

Modbus register: 31124

BACnet object: analog value, object ID: 54, properties: present value.

Heating energy at 31/12 LSR

This register allows to read for the least significant data of the total heating energy (kWh*10) at the end of the year.

Modbus register: 31139

BACnet object: analog value, object ID: 55, properties: present value.

Heating energy at 31/12 MSR

This register allows to read for the most significant data of the total heating energy (kWh*10) at the end of the year.

Modbus register: 31140

BACnet object: analog value, object ID: 55, properties: present value.

Heating energy value 1

This register contains the energy (heating) consumption (MWh*10) for the month of January.

Modbus register: 31141

BACnet object: analog value, object ID: 56, properties: present value.

Heating energy value 2

This register contains the energy (heating) consumption (MWh*10) for the month of February.

Modbus register: 31142

BACnet object: analog value, object ID: 57, properties: present value.

Heating energy value 3

This register contains the energy (heating) consumption (MWh*10) for the month of March.

Modbus register: 31143

BACnet object: analog value, object ID: 58, properties: present value.

Heating energy value 4

This register contains the energy (heating) consumption (MWh*10) for the month of April.

Modbus register: 31144

BACnet object: analog value, object ID: 59, properties: present value.

Heating energy value 5

This register contains the energy (heating) consumption (MWh*10) for the month of May.

Modbus register: 31145

BACnet object: analog value, object ID: 60, properties: present value.

Heating energy value 6

This register contains the energy (heating) consumption (MWh*10) for the month of June.

Modbus register: 31146

BACnet object: analog value, object ID: 61, properties: present value.

Heating energy value 7

This register contains the energy (heating) consumption (MWh*10) for the month of July.

Modbus register: 31147

BACnet object: analog value, object ID: 62, properties: present value.

Heating energy value 8

This register contains the energy (heating) consumption (MWh*10) for the month of August.

Modbus register: 31148

BACnet object: analog value, object ID: 63, properties: present value.

Heating energy value 9

This register contains the energy (heating) consumption (MWh*10) the month of September.

Modbus register: 31149

BACnet object: analog value, object ID: 64, properties: present value.

Heating energy value 10

This register contains the energy (heating) consumption (MWh*10) for the month of October.

Modbus register: 31150

BACnet object: analog value, object ID: 65, properties: present value.

Heating energy value 11

This register contains the energy (heating) consumption (MWh*10) for the month of November.

Modbus register: 31151

BACnet object: analog value, object ID: 66, properties: present value.

Heating energy value 12

This register contains the energy (heating) consumption (MWh*10) for the month of December.

Modbus register: 31152

BACnet object: analog value, object ID: 67, properties: present value.

Cooling energy at 31/12 LSR

This register allows to read the least significant data of the total cooling energy (kWh*10) at the end of the year.

Modbus register: 31153

BACnet object: analog value, object ID: 68, properties: present value.

Cooling energy at 31/12 MSR

This register contains the most significant data of the total cooling energy (kWh*10) at the end of the year.

Modbus register: 31154

BACnet object: analog value, object ID: 68, properties: present value.

Cooling energy value 1

This register contains the energy (cooling) consumption (MWh*10) for the month of January.

Modbus register: 31155

BACnet object: analog value, object ID: 69, properties: present value.

Cooling energy value 2

This register contains the energy (cooling) consumption (MWh*10) for the month of February.

Modbus register: 31156

BACnet object: analog value, object ID: 70, properties: present value.

Cooling energy value 3

This register contains the energy (cooling) consumption (MWh*10) for the month of March.

Modbus register: 31157

BACnet object: analog value, object ID: 71, properties: present value.

Cooling energy value 4

This register contains the energy (cooling) consumption (MWh*10) for the month of April.

Modbus register: 31158

BACnet object: analog value, object ID: 72, properties: present value.

Cooling energy value 5

This register contains the energy (cooling) consumption (MWh*10) for the month of May.

Modbus register: 31159

BACnet object: analog value, object ID: 73, properties: present value.

Cooling energy value 6

This register contains the energy (cooling) consumption (MWh*10) for the month of June.

Modbus register: 31160

BACnet object: analog value, object ID: 74, properties: present value.

Cooling energy value 7

This register contains the energy (cooling) consumption (MWh*10) for the month of July.

Modbus register: 31161

BACnet object: analog value, object ID: 75, properties: present value.

Cooling energy value 8

This register contains the energy (cooling) consumption (MWh*10) for the month of August.

Modbus register: 31162

BACnet object: analog value, object ID: 76, properties: present value.

Cooling energy value 9

This register contains the energy (cooling) consumption (MWh*10) for the month of September.

Modbus register: 31163

BACnet object: analog value, object ID: 77, properties: present value.

Cooling energy value 10

This register contains the energy (cooling) consumption (MWh*10) for the month of October.

Modbus register: 31164

BACnet object: analog value, object ID: 78, properties: present value.

Cooling energy value 11

This register contains the energy (cooling) consumption (MWh*10) for the month of November.

Modbus register: 31165

BACnet object: analog value, object ID: 79, properties: present value.

Cooling energy value 12

This register contains the energy (cooling) consumption (MWh*10) for the month of December.

Modbus register: 31166

BACnet object: analog value, object ID: 80, properties: present value.

Clock Function Section

Clock Minutes

This database register contains the value of the minutes received during the time synchronization phase.

Modbus register: 41182

BACnet object:

Clock Minutes object in BACnet

Clock Hours

This register contains the value of the hours received during the time synchronization phase.

Modbus register: 41183

BACnet object:

Clock Hours object in BACnet

Clock Day

This register contains the value of the day received during the time synchronization phase.

Modbus register: 41184

BACnet object:

Clock Day object in BACnet

Clock Month

This register contains the value of the month received during the time synchronization phase.

Modbus register: 41185

BACnet object:

Clock Month object in BACnet

Clock Year

This register contains the value of the year received during the time synchronization phase.

Registers from address 1181 to address 1185 contain the values that store the date and time of the actuator once they have been synchronized (only necessary in the case of energy calculation).

The actuator doesn’t have a “buffer” battery so that every time it is turned off or reset the date and time are lost, a new synchronization will therefore be required. If the date and time are not synchronized, the default date/time is: 01/01/2000 00:00.

Modbus register: 41186

BACnet object:

Clock Year object in BACnet

Loop Output Section

Loop Output Dynamic Balancing (EBV only)

This register contains the percentage output value of the dynamic balancing loop.

The value inside the register is multiplied by 10.

Modbus register: 31192

Loop Output BMS (%)

This register contains the percentage output value of the BMS loop.

The value inside the register is multiplied by 10.

Modbus register: 31193

Loop Output flow rate control (MVE/MVC-2-RS only)

This register contains the percentage output value of the output flow rate control loop.

The value inside the register is multiplied by 10.

Modbus register: 31194

Loop Output power

This register contains the percentage output value of the power loop.

If one or both of the temperature sensors are disconnected or faulty, the stored value is 65535.

The value inside the register is multiplied by 10.

Modbus register: 31196

Loop Output power limit

This register contains the percentage output value of the power limit loop.

If one or both of the temperature sensors are disconnected or faulty, the stored value is 65535.

The value inside the register is multiplied by 10.

Modbus register: 31197

Loop Output Temperature Control (%)

This register contains the percentage output value of the Temperature control loop.

If one or both of the temperature sensors are disconnected or faulty, the stored value is 5000.

The value inside the register is multiplied by 10.

Modbus register: 31198

Loop Output Temperature Limitations (%)

This register contains the percentage output value of the Temperature limit loop.

If one or both of the temperature sensors are disconnected or faulty, the stored value is 5000.

The value inside the register is multiplied by 10.

Modbus register: 31199

Operating loop output (%)

This register contains the percentage out value of the operating loop resulting from the actually enabled functions.

The value inside the register is multiplied by 10.

Modbus register: 31200

Power Section

Max. power

This register allows to set of the valve nominal power (kW*10).

Modbus register: 41207

BACnet object: analog value, object ID: 86, properties: present value.

Media density

This register allows to set the density of the fluid, the default value is for water at 20°C (997.8 Kg/m³). The value is multiplied by 10, so in the register is: 9978.

The maximum value is 6553.5.

Modbus register: 41208

BACnet object: analog value, object ID: 87, properties: present value.

 Media specific heat

This database register allows to set the specific heat of the fluid, the default value is for water at 20°C (4196 J/Kg °C). The value is multiplied by 10, so in the register is: 41960.

The maximum value is 6553.5.

Modbus register: 41209

BACnet object: analog value, object ID: 88, properties: present value.

Custom nominal power ΔT 20K

This register contains the valve nominal power at 20°C (kW*10).

Modbus register: 31213

Loop Parameters Section

Action Type

This database register contains the type of loop action that can be:

Selection of the action type

Modbus register: 41231

BACnet object: multi state value, object ID: 8, properties: present value.

Derivative Time

This register contains the derivative time of the derivative action expressed as "gain" from 1 to 10 (default value is 1).

Modbus register: 41232

BACnet object: analog value, object ID: 89, properties: present value.

Integral Time (min)

This register contains the integral time of the integral action expressed in minutes from 0 to 30.

Modbus register: 41233

BACnet object: analog value, object ID: 90, properties: present value.

Proportional Bandwidth (°C)

This register contains the proportional bandwidth for all loops. The value stored in the register is multiplied by 10, so the range is from 0 to 100 (from 0 to 10°C)

Modbus register: 41234

BACnet object: analog value, object ID: 91, properties: present value.

Month timestamp of 31st December

This register allows to read the year end month total energy, it is set to December.

Modbus register: 31241

BACnet object: analog value, object ID: 92, properties: present value.

Year timestamp of 31st December

This register allows to read the year of the last reading recorded on 31 December.

Modbus register: 31242

BACnet object: analog value, object ID: 93, properties: present value.

Month timestamp of value 1

This register contains the month in which the actuator has registered the energy consumption, it is set to January.

Modbus register: 31243

BACnet object: analog value, object ID: 94, properties: present value.

Year timestamp of value 1

This register contains the year in which the actuator has registered the energy consumption in January.

Modbus register: 31244

BACnet object: analog value, object ID: 95, properties: present value.

Month timestamp of value 2

This register contains the month in which the actuator has registered the energy consumption, it is set to February.

Modbus register: 31245

BACnet object: analog value, object ID: 96, properties: present value.

Year timestamp of value 2

This register contains the year in which the actuator has registered the energy consumption in February.

Modbus register: 31246

BACnet object: analog value, object ID: 97, properties: present value.

Month timestamp of value 3

This register contains the month in which the actuator has registered the energy consumption, it is set to March.

Modbus register: 31247

BACnet object: analog value, object ID: 98, properties: present value.

Year timestamp of value 3

This register contains the year in which the actuator has registered the energy consumption in March.

Modbus register: 31248

BACnet object: analog value, object ID: 99, properties: present value.

Month timestamp of value 4

This register contains the month in which the actuator has registered the energy consumption, it is set to April.

Modbus register: 31249

BACnet object: analog value, object ID: 100, properties: present value.

Year timestamp of value 4

This register contains the year in which the actuator has registered the energy consumption in April.

Modbus register: 31250

BACnet object: analog value, object ID: 101, properties: present value.

Month timestamp of value 5

This register contains the month in which the actuator has registered the energy consumption, it is set to May.

Modbus register: 31251

BACnet object: analog value, object ID: 102, properties: present value.

Year timestamp of value 5

This register contains the year in which the actuator has registered the energy consumption in May.

Modbus register: 31252

BACnet object: analog value, object ID: 103, properties: present value.

Month timestamp of value 6

This register contains the month in which the actuator has registered the energy consumption, it is set to June.

Modbus register: 31253

BACnet object: analog value, object ID: 104, properties: present value.

Year timestamp of value 6

This register contains the year in which the actuator has registered the energy consumption in June.

Modbus register: 31254

BACnet object: analog value, object ID: 105, properties: present value.

Month timestamp of value 7

This register contains the month in which the actuator has registered the energy consumption, it is set to July.

Modbus register: 31255

BACnet object: analog value, object ID: 106, properties: present value.

Year timestamp of value 7

This register contains the year in which the actuator has registered the energy consumption in July.

Modbus register: 31256

BACnet object: analog value, object ID: 107, properties: present value.

Month timestamp of value 8

This register contains the month in which the actuator has registered the energy consumption, it is set to August.

Modbus register: 31257

BACnet object: analog value, object ID: 108, properties: present value.

Year timestamp of value 8

This register contains the year in which the actuator has registered the energy consumption in August.

Modbus register: 31258

BACnet object: analog value, object ID: 109, properties: present value.

Month timestamp of value 9

This register contains the month in which the actuator has registered the energy consumption, it is set to September.

Modbus register: 31259

BACnet object: analog value, object ID: 110, properties: present value.

Year timestamp of value 9

This register contains the year in which the actuator has registered the energy consumption in September.

Modbus register: 31260

BACnet object: analog value, object ID: 111, properties: present value.

Month timestamp of value 10

This register contains the month in which the actuator has registered the energy consumption, it is set to October.

Modbus register: 31261

BACnet object: analog value, object ID: 112, properties: present value.

Year timestamp of value 10

This register contains the year in which the actuator has registered the energy consumption in October.

Modbus register: 31262

BACnet object: analog value, object ID: 113, properties: present value.

Month timestamp of value 11

This register contains the month in which the actuator has registered the energy consumption, it is set to November.

Modbus register: 31263

BACnet object: analog value, object ID: 114, properties: present value.

Year timestamp of value 11

This register contains the year in which the actuator has registered the energy consumption in November.

Modbus register: 31264

BACnet object: analog value, object ID: 115, properties: present value.

Month timestamp of value 12

This register contains the month in which the actuator has registered the energy consumption, it is set to December.

Modbus register: 31265

BACnet object: analog value, object ID: 116, properties: present value.

Year timestamp of value 12

This register contains the year in which the actuator has registered the energy consumption in December.

Modbus register: 31266

BACnet object: analog value, object ID: 117, properties: present value.