Sauter Room Automation
Sauter Room Automation
Sauter Room Automation
room automation
Summary
State-of-the-art SAUTER room automation with the SAUTER EY-modulo system covers all the functions necessary to upgrade technical as well as energy-efficient and intelligent building automation in
existing buildings and to implement it in new buildings.
In this document, the room automation functions (according to VDI 3813 [2]) are explained using the
SAUTER functional triangle of room automation, and the functions are assigned to the energy
efficiency classes for buildings according to EN 15232 [1].
Introduction
The room automation functions can be divided into three function groups. However, the functions interact closely with each other, so that the idea of a SAUTER functional triangle of room automation
can visualise this well:
The automated interaction of the desired conditions in the room, such as those of the room conditioning with temperature and air quality, and those of the light and solar protection, as well as the local
operation and the automated control facility, is known as INTEGRATED ROOM AUTOMATION [3].
With the following functions, SAUTER covers all the requirements for all three interlinked facilities in
the room (room conditioning, light, solar protection) and provides functions on the local operating level
with the room operating units, and on the management level for optimised, flexible and energy-efficient
operation of the rooms.
www.sauter-controls.com
D100163419
SAUTER functional triangle of integrated room automation according to EN 15232 and VDI 3813
www.sauter-controls.com
D100163419
Cooling
Ventilation
Temperature
(C/F)
Air quality
3
(ppm, mg/m )
Air humidity
(%rH)
Sensors
measuring devices
Heating
Actuators
plant / field control devices
Functions for controlling the room conditioning (temperature, air quality, air humidity) with the room
automation unit (heating, cooling, ventilation)
www.sauter-controls.com
D100163419
Heating
For the heating, the controller is installed on the room level (individual room, room segment or multiple rooms as an area).
For energy-optimised controlling of the room temperature, the room controllers must be
in communication with the building management system (1.1.3). Occupancy-dependent,
demand-led controlling increases the efficiency (1.1.4).
A controller with a time program enables intermittent operation for fixed occupancy patterns, flexible switching (optimised switching) or demand-led usage (Comfort, Precomfort, Economy, Protection) (1.5).
EN 15232:
VDI 3813:
6.5.23
Heating Control
1.1 Emission control
1.5 Intermittent control of emission and/or distribution
Temperature control (heating/cooling)
Cooling
For the cooling, the controller is installed on the room level (individual room, room segment or multiple rooms as an area).
For energy-optimised controlling of the room temperature, the room controllers should
be in communication with the building management system (3.1.3). Occupancydependent, demand-led controlling increases the efficiency (3.1.4).
A controller with a time program enables intermittent operation for fixed occupancy patterns, flexible switching (optimised switching) or demand-led usage (Comfort, Precomfort, Economy, Protection) (3.5).
EN 15232:
VDI 3813:
6.5.23
Cooling Control
3.1 Emission control
3.5 Intermittent control of emission and/or distribution
Temperature control (heating/cooling)
3.6
VDI 3813:
6.5.22
VDI 3813:
6.5.24
6.5.25
www.sauter-controls.com
D100163419
EN 15232:
4.5
VDI 3813:
6.5.29
EN 15232:
4.1.2
VDI 3813:
6.5.28
EN 15232:
4.1.3
VDI 3813:
6.5.28
6.5.30
EN 15232:
4.7
VDI 3813:
6.5.22
www.sauter-controls.com
D100163419
EN 15232:
VDI 3813:
1.1.4
3.1.4
6.5.19
6.5.20
6.5.21
www.sauter-controls.com
D100163419
Functions for controlling and regulating to obtain the optimal lighting conditions in the room
EN 15232:
VDI 3813:
Occupancy detectors
Light measurement (Lux)
Sensors
measuring devices
Actuators
plant / field control devices
Lighting
5
Lighting Control
6.5.6
6.5.11 (Functions for controlling and regulating the lighting)
EN 15232:
5.1
VDI 3813:
6.5.6
Occupancy control
5.1.0 Manual on/off switch
Light control (for class C: with additional automatic switching-off signal)
www.sauter-controls.com
D100163419
Lighting control with switch-off delay is switched on and off manually by means of a
switch. In addition, the light is switched off automatically at least once a day.
EN 15232:
5.1
VDI 3813:
6.5.6
6.5.7
Occupancy control
5.1.1 Manual on/off switch + additional sweeping extinction signal
Light control (for class C: with additional automatic switching-off signal)
Stairwell light control
5.1
VDI 3813:
6.5.7
6.5.8
Occupancy control
5.1.2 Automatic detection
Stairwell light control
Automatic lights
EN 15232:
5.2
VDI 3813:
6.5.9
6.5.11
Daylight control
5.2.1 - Automatic
Daylight-dependent lighting (room light sensor)
Twilight control (outside light sensor)
EN 15232:
5.2
VDI 3813:
6.5.9
Daylight control
5.2.1 - Automatic
Daylight-dependent lighting (room light sensor)
www.sauter-controls.com
D100163419
EN 15232:
VDI 3813:
Weather station
2
(m/s, C, F, W/m )
Sensors
measuring devices
Actuators
plant / field control devices
Solar protection
6
Blind Control
6.5.12
6.5.18 (Functions for controlling and regulating the solar protection devices)
Manual controlling of the solar protection devices can prevent overheating or avoid
glare. In this case, the energy optimisation fully depends on the room users present and
their knowledge of the energy-saving effects of solar protection devices.
EN 15232:
VDI 3813:
6.1
www.sauter-controls.com
D100163419
10
EN 15232:
VDI 3813:
6.2
6.5.14
Glare protection dependent on the suns position ensures optimal slat adjustment
depending on the date/time and the current position of the sun, and on the location and
direction of the window blinds.
EN 15232:
VDI 3813:
6.2
6.5.15
6.5.16
Not in standard
Shadow correction
EN 15232:
VDI 3813:
6.5.13
Not in standard
Automatic twilight control
www.sauter-controls.com
D100163419
11
EN 15232:
VDI 3813:
6.5.18
6.5.12
Not in standard
Weather protection with
Priority control
Solar protection control with priority selection calculates different positioning commands with a prioritised sequence in order to avoid damage to the solar protection device (wind, mechanical collision) but still enable manual user intervention.
EN 15232:
VDI 3813:
6.5.12
Not in standard
Priority control
The functions of the integrated room automation are defined by BA efficiency classes
and are selected in such a way that the most energy-efficient building automation possible can be achieved.
EN 15232:
Tab.2
VDI 3813:
Tab.2
www.sauter-controls.com
D100163419
12
EN 15232:
VDI 3813:
6.3
6.5.17
Not in standard
Operator and display functions (local)
6.4
6.4.6
6.5.3
Not in standard
Select room utilisation type
Control via room utilisation types
www.sauter-controls.com
D100163419
13
Along with the local operating and display functions with the standard room operating units (outer,
light-grey triangle), the central functions on the management level of the building automation are
summarised for the various requirements of the room automation and for the room management (inner, dark-grey triangle).
7
6.7
6.8
Environment/weather
Environmental factors affect the integrated room automation to the extent that
weather conditions particularly affect, according to priority, the regulation and
controlling of the solar protection device. A central weather station on the building performs this task. For slow heating/cooling reservoirs (TABS: thermoactive
building elements), weather forecast data can also be used to predictively influence the room automation.
EN 15232:
VDI 3813:
7
6.5.18
www.sauter-controls.com
D100163419
14
Optimisation
Technical house and building management and communicative control facilities
enable continuous, central monitoring and optimisation of the setpoints and control parameters (coefficients for PI-controllers). Central, automatic correction and
optimisation of setpoints, as well as the set control parameters, affect the energyefficient and therefore the cost-optimised operation of the building. This central
optimisation fulfils the specified BA efficiency class.
EN 15232:
VDI 3813:
7
6.7.2
Energy data
The central acquisition of energy consumption data, separately for every building
section or even every room, and the displaying and logging of this energy data,
can contribute to better, more energy-efficient operation of the building.
An energy management system with energy monitoring (energy data acquisition
and monitoring), energy data logging, energy billing or benchmark, can be used
by the operator to minimise the energy costs.
With virtual acquisitions of consumption data in each room (virtual counters), the
costs for metering devices is minimised while the room users are still informed of
their energy consumption.
EN 15232:
7.2
VDI 3813:
6.7.3
Time programs
The building management system also centrally manages the time programs
and (operating) calendars for the overall operation of the room and building automation. As the time profiles and calendars are stored locally in the respective
automation stations, the building management system only has to manage and
synchronise the time programs and calendars.
EN 15232:
VDI 3813:
6.7.2
6.8.1
Not in standard
Management communication functions
Operator functions - General
Alarm
Notification is important for the safe operation of the room and building automation. Alarm monitoring and forwarding, but also alarm confirmation by the user,
with or without an audit trail, and alarm logs, are the tasks of a notification system
integrated into the building management system.
The various prioritised events and alarms are displayed clearly in alarm and
event lists. Important alarms can also be forwarded to defined persons (alarm
dispatching).
EN 15232:
7.1
VDI 3813:
6.7.2
6.8.4
6.8.5
www.sauter-controls.com
D100163419
15
Trend
To ensure the continuous, high-quality operation of the building and rooms, the
states, events and measurement and positioning values of the MCR devices are
logged. This trend and event data logging is performed using current and historical databases and, optimised visually, supports the data monitoring, both for
current values (live data) and for long-term historical values (data archiving).
EN 15232:
VDI 3813:
6.7.3
Not in standard
Operating data storage
6.7.3.1 Long-term event logging
6.7.3.2 Archiving in database
EN 15232:
VDI 3813:
Not in standard
Not in guideline
Room management
The room management can be used to optimally adjust flexible room divisions
in an office building to the needs of the users. With this central partition wall
control, adjacent rooms can be combined to make up a single room. The room
automation devices automatically configure themselves into a single unit. This
can be performed automatically with a partition contact or manually with the
building management system. (Flexible room division, smart wall)
EN 15232:
VDI 3813:
6.5.5
Not in standard
Partition wall control
Rental area
With the support of functions for operating building areas for various or changing
tenants - the additional rental area functions, such as energy billing, rental
contract management, rights of use, responsibilities - buildings can be used and
let optimally by the investors and owners. These rental area functions are usually
provided in additional modules, or management systems of the technical facility
management.
EN 15232:
VDI 3813:
Not in standard
Not in guideline
www.sauter-controls.com
D100163419
16
Occupancy
With a system for room occupancy, such as the room occupancy system for
hotels or a central occupancy evaluation (statistical evaluation of the room occupancy), the room climate conditions can be prepared and operated optimally for
the user. The central specification of the room occupancy and a dynamic, local
occupancy evaluation (card holders, occupancy sensors) in the room can provide
optimal support to the energy-efficient building automation and also be used for
operating the rooms in the facility management segment.
EN 15232:
VDI 3813:
6.5.2
Not in standard
Occupancy evaluation
ecos
ecoUnit
ecoLink
ecoMod
ecoSens
ecosLib
the complete room automation library for CASE Suite with all the
function groups for BA in accordance with EN 15232 and VDI 3813
www.sauter-controls.com
D100163419
17
ecosClimate
ecosLight
ecosSun
ecosCTRL
ecosDR
ecosAM
ecosCert
ecosFlex
ecosBox
ecosNet
www.sauter-controls.com
D100163419
18
Conclusion
The descriptions of room and building automation functions from EN 15232 and VDI 3813 enable the
planner of a building and room automation system (BACS, RACS) to select the correct functions so
that the energy for operating the building is used efficiently.
Suitable building and energy management systems (BEMS) enable the monitoring of such intelligent
buildings (smart buildings, green buildings, integrated and intelligent buildings).
In the future, these requirements for intelligent room automation functions will also be found in international standards, as in ISO 16484 (ISO 16484-3: BACS functions / ISO 16484-4: BACS / RACS applications), and therefore in the standards of all countries.
[2]
[3]
SAUTER white paper: Integrated room automation and energy efficiency (V1.1, 2013)
[4]
[5]
Authors
Roland Hofstetter, SAUTER Head Office: Market Manager, SAUTER Systems; worked on the marketing strategy within the framework of the Room Automation Competence Centre; defined the requirements for improved intelligent building management systems with SAUTER products. Member of
CEN TC 247 Working Group 3.
Ulrich Howorka and Markus Strittmatter, SAUTER Germany: Product Manager, Room Automation;
worked on setting up the SAUTER RA libraries according to the functions in VDI 3813; worked on
VDI 3813 expert group and on CEN TC 247 WG6; provided support for room automation projects for
SAUTER Germany and led seminars for planners and training courses for customers.
Kilian Haller and Mathieu Dehlinger, SAUTER Head Office: Product Manager, Room Automation;
Project Manager and worked on setting up and implementing the SAUTER RA libraries according to
EN 15232 and VDI 3813; international product training courses for the room automation system
SAUTER ecos.
www.sauter-controls.com
D100163419
19
Abbreviations
BACS
BA
RACS
RA
BMS
BM
TBM
BEMS
MCR
EMS
ISO
EN
European Norm
VDI
BACnet
B-BC
DALI
KNX
SMI
Company portrait
As a leading provider of solutions for building automation technology in green buildings, SAUTER
provides pleasant conditions and a sense of well-being in sustainable environments. SAUTER develops, produces and markets energy-efficient total solutions and offers a comprehensive range of services to ensure that buildings are operated with optimal energy usage. Our products, solutions and
services ensure high energy efficiency throughout the entire life-cycle of a building, from planning and
construction through to operation, in office and administrative buildings, research and educational
establishments, hospitals, industrial buildings and laboratories, airports, leisure facilities, hotels and
data centres. With over a century of experience and a track record of technological know-how,
SAUTER is a proven system integrator, with a name that stands for continuous innovation and Swiss
quality. The recipient of awards for the best automation system and the best energy service, as well as
eu.bac and BTL certifications, SAUTER provides users and operators with an overview of energy
flows and consumption, enabling them to track the development of their costs.
www.sauter-controls.com
D100163419
20
Tables in appendix
Room automation from EN 15232-2012 (tab. 1)
AUTOMATIC CONTROL
1
HEATING CONTROL
1.1
Emission control
The control system is installed at the emitter or room level, for case 1 one system can control several rooms
1.5
Central automatic control: There is only central automatic control acting either on the distribution or on the generation. This can be achieved for example by an outside temperature controller conforming to EN 12098-1 or EN
12098-3
Individual room control with communication: Between controllers and BACS (e.g. scheduler)
Individual room control with communication and presence control: Between controllers and BACS; Demand /
Presence control performed by occupancy
No automatic control
Automatic control with fixed time program: To reduce the indoor temperature and the operation time
Automatic control with optimum start/stop: To reduce the indoor temperature and the operation time
Automatic control with demand evaluation: To reduce the indoor temperature and the operation time
COOLING CONTROL
3.1
Emission control
The control system is installed at the emitter or room level, for case 1 one system can control several rooms
3.5
Central automatic control: There is only central automatic control acting either on the distribution or on the generation. This can be achieved for example by an outside temperature controller conforming to EN 12098-1 or EN
12098-3
Individual room control with communication: Between controllers and BACS (e.g. scheduler)
Individual room control with communication and presence control: Between controllers and BACS; Demand /
Presence control performed by occupancy
3.6
No automatic control
Automatic control with fixed time program: To raise the indoor temperature and to lower the operation time
Automatic control with optimum start/stop: To raise the indoor temperature and to lower the operation time
Automatic control with demand evaluation: To raise the indoor temperature and to lower the operation time
No interlock: the two systems are controlled independently and can provide simultaneously heating and cooling
Partial interlock (dependant of the HVAC system): The control function is set up in order to minimize the possibility of simultaneous heating and cooling. This is generally done by defining a sliding set point for the supply
www.sauter-controls.com
D100163419
21
Total interlock: The control function enables to warranty that there will be no simultaneous heating and cooling.
4.1
4.5
4.7
No automatic control: The system runs constantly ( e.g. manual controlled switch)
Presence control: The system runs dependent on the presence (light switch, infrared sensors etc.)
Demand control: The system is controlled by sensors measuring the number of people or indoor air parameters
or adapted criteria (e.g. CO2, mixed gas or VOC sensors). The used parameters shall be adapted to the kind of
activity in the space.
No automatic control
Night cooling: The amount of outdoor air is set to its maximum during the unoccupied period provided: 1) the
room temperature is above the set point for the comfort period; 2) the difference between the room temperature
and the outdoor temperature is above a given limit; if free night cooling will be realised by automatically opening
windows there is no air flow control
Free cooling: The amount of outdoor air and recirculation air are modulated during all periods of time to minimize
the amount of mechanical cooling. Calculation is performed on the basis of temperatures
H,x- directed control: The amount of outdoor air and recirculation air are modulated during all periods of time to
minimize the amount of mechanical cooling. Calculation is performed on the basis of temperatures and humidity
(enthalpy).
Humidity control
The control of the air humidity may include humidification and / or dehumidification. Controllers may be applied as
humidity limitation control or constant control"
0
Dewpoint control: Supply air or room air humidity expresses the Dewpoint temperature and reheat of the supply
air
Direct humidity control: Supply air or room air humidity; a control loop enables the supply air or room air humidity
at a constant value
LIGHTING CONTROL
5.1
Occupancy control
0
Manual on/off switch: The luminary is switched on and off with a manual switch in the room
Manual on/off switch + additional sweeping extinction signal: The luminary is switched on and off with a manual
switch in the room. In addition, an automatic signal automatically switches off the luminary at least once a day,
typically in the evening to avoid needless operation during the night
Automatic detection
Auto On / Dimmed Off: The control system switches the luminary (ies) automatically on whenever there is
presence in the illuminated area, and automatically switches them to a state with reduced light output (of no
more than 20 % of the normal 'on state') no later than 5 min after the last presence in the illuminated area. In
addition, no later than 5 min after the last presence in the room as a whole is detected, the luminary(ies) is
automatically and fully switched off
Auto On / Auto Off: The control system switches the luminary(ies) automatically on whenever there is presence
in the illuminated area, and automatically switches them entirely off no later than 5 min after the last presence is
detected in the illuminated area
Manual On / Dimmed: The luminary(ies) can only be switched on by means of a manual switch in (or very close
to) the area illuminated by the luminary(s), and, if not switched off manually, is/are automatically switched to a
state with reduced light output (of no more than 20 % of the normal 'on state') by the automatic control system
no later than 5 min after the last presence in the illuminated area. In addition, no later than 5 min after the last
presence in the room as a whole is detected, the luminary(s) are automatically and fully switched off
Manual On / Auto Off: The luminary(ies) can only be switched on by means of a manual switch in (or very close
to) the area illuminated by the luminary(ies), and, if not switched off manually, is automatically and entirely
www.sauter-controls.com
D100163419
22
switched off by the automatic control system no later than 5 min after the last presence is detected in the illuminated area
5.2
Daylight control
0
Automatic: An automatic system takes daylight into account in relation to automatisms described in 5.1.
BLIND CONTROL
There are two different motivations for blind control: solar protection to avoid overheating and to avoid glaring
Manual operation: Mostly used only for manual shadowing, energy saving depends only on the user behaviour
Motorized operation with manual control: Mostly used only for easiest manual (motor supported) shadowing,
energy saving depends only on the user behaviour
Motorized operation with automatic control: Automatic controlled dimming to reduce cooling energy
Combined light/blind/HVAC control: To optimize energy use for HVAC, blind and lighting for occupied and nonoccupied rooms
Attention shall be paid to the tuning of all controllers this includes set points as well as control parameters such
as PI controller coefficients.
Heating and cooling set points of the room controllers shall be checked at regular intervals. These set points are
often modified by the users. A centralised system enables to detect and correct extreme values of set points due
to misunderstanding of users.
If the Interlock between heating and cooling control of emission and/or distribution is only a partial interlock. The
set point shall be regularly modified to minimise the simultaneous use of heating and cooling.
Alarming and monitoring functions will support the adaptation of the operation to user needs and the optimization
of the tuning of the different controllers. This will be achieved by providing easy tools to detect abnormal operation (alarming functions) and by providing easy way to log and plot information (monitoring functions).
7.1
Detecting faults of home and building systems and providing support to the diagnosis of these faults
7.2
Reporting information regarding energy consumption, indoor conditions and possibilities for improvement
www.sauter-controls.com
D100163419
23
Non residential
A
AUTOMATIC CONTROL
1
HEATING CONTROL
1.1
Emission control
The control system is installed at the emitter or room level, for case 1 one system can control several rooms
1.2
No automatic control
1.3
1.4
1.5
1.6
No automatic control
1.7
1.8
COOLING CONTROL
3.1
Emission control
The control system is installed at the emitter or room level, for case 1 one system can control several rooms
3.2
No automatic control
3.3
www.sauter-controls.com
D100163419
24
Definition of classes
Residential
D
3.4
Non residential
A
3.5
3.6
3.7
No automatic control
No interlock
Total interlock
3.8
4.1
4.2
No automatic control
Time control
Presence control
Demand control
4.3
4.4
4.5
4.6
No automatic control
Night cooling
Free cooling
4.7
Humidity control
0
No automatic control
Dewpoint control
LIGHTING CONTROL
5.1
Occupancy control
www.sauter-controls.com
D100163419
25
Definition of classes
Residential
D
5.2
Automatic detection
Non residential
A
Daylight control
0
Manual
Automatic
BLIND CONTROL
0
Manual operation
7.1
Detecting faults of home and building systems and providing support to the diagnosis of these faults
7.2
No
Yes
Reporting information regarding energy consumption, indoor conditions and possibilities for improvement
0
No
Yes
www.sauter-controls.com
D100163419
26
X a)
X b)
6.5.4
Time program
c)
Light control
6.5.8
Automatic lights e)
6.5.9
X d)
Daylight-dependent lighting
6.5.10
Constant-light control
f)
f)
6.5.15
Slat tracking
6.5.16
Shadow correction
6.5.17
6.5.20
6.5.21
Setpoint calculation
6.5.22
Function selection
6.5.23
6.5.24
6.5.25
Fan control
6.5.28
6.5.29
Night-time cooling
X
h)
X
X
function required
function required at least for lighting and sunshading functions, integration into room climate functions recommended
b)
c)
d)
e)
f)
g)
h)
6.5.13
6.5.3
6.5.18
Weather protection
6.5.5
6.5.26
Sequence control
6.5.7
6.5.27
6.5.11
Twilight control
6.7.2
6.5.12
Priority control
6.7.3
www.sauter-controls.com
D100163419
27