HRC Homeboy ® EIB BACnet Gateway V2 - bei HR Controls

HRC Homeboy ®
EIB BACnet Gateway V2
This equipment developed due to the fact that the
control solutions for smaller EIB projects (to approx.
1500 group addresses), available at the market, are
very expensive and complicated in the operation and
care of the system. You will need a lot of different
and expansive EIB Units to manage comfort
functions like schedules and such things. With the
help of HRC Homeboy you are able to realize
functions such as schedules, trends, alarms,
operation hours, sun protection optimization and
much more for you building in shortest time and
without advanced training expenditure. You configure
the gateway with the help of a WEB front-end and a
normal Internet Brower such as IE, Opera, Fire fox.
No further Software is needed. The Gateway
connects to your EIB installation with the help of its
RS232 interface and a standard RS232/EIB coupling
unit. Over the Ethernet interface the Gateway is
connected to the BACnet Ethernet protocol as an
BACnet Server. With the help of this interface it is
possible to simply connect your EIB installation to a
manufacturer independent management level.
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
Architecture of the intelligent gateway
Central piece of the gateway is a SQL data base, in which all relevant data are stored. This
covers all parameters for schedules, trends, operation hour counting etc.. With the help of this
Database you are able to reboot the gateway without a loss of information after a power failure.
Beside the SQL data base there are run processes, which realize all the functionality and the
actual interfaces to the external world.
First we have an EIB process, which monitors all telegrams in your EIB installation and provide
an exact current system image of the EIB Installation in the gateway. Also this process ensures
that changes in the Database will transfer into the EIB installation.
Further processes control all inserted comfort functions as well as the processing of all BACnet
relevant inquiries etc..
Because of the inbuilt web server, it is possible, to implement a simple web based
visualization according to your desires. A small example visualization is already installed and
can be used as a starting point for your own visualization.
(see the manual for further information)
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
Integrated comfort functions in the HRC Homeboy gateway:
The intelligent gateway from HR Controls goes far beyond the functionality of a simple
protocol converter. Apart from the normal coupling between EIB and BACnet there are
another considerable numbers of powerful and ready to use comfort functions which can be
used without further programming. These functions cover a majority of the daily needed jobs
in the building. Further functions can later be realized by developing your own programs with
the help of a well known scripting Language (PHP).
Schedules
With the help of schedules it is possible to arrange create switching actions in the EIB
installation at certain times. For each group address in the EIB one or more schedules can be
assigned. All schedules are developed according to the rider principle. If you want for
example to switch all exterior lights on daily in the evening at 22 o'clock until in the morning 6
o'clock, then 2 schedules are necessary. One schedule switches daily the lighting on at 22
o'clock, whereas the second schedule takes over a switching off in the morning at 6 o'clock.
Alarms
For each EIB group address a minimum and a maximum limit can be set. If the current value
of the data point runs out of this range, then the alarm status of this data point is set and the
alarm time is stored as well as the current value into the data base. Also on the BACnet side
this condition of the alarm becomes visible with the help of the status flags.
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
Trends
Trends offer the possibility of recording the current value from a group address at certain times.
These values are stored in extra tables with timestamp. A trend can be useful for diagnosis
when you want to find errors in your installation as well as for the support of optimization your
plant. The recording intervals have a range of 1 minute up to some months.
Operation hours
If you want to determine how long a certain group address runs, then you simply put on an
operation hour counting for this group address. From now on all running times are summed
minute-exactly. After reach of a certain freely adjustable period a maintenance message is
generated and stored into the data base.
Cleaning light function
The cleaning light function is used to automatic shutdown lights, which are switched on by the
cleaning people, after a freely adjustable period of minutes. Also this function takes place in
stairways. The sense is to save energy with shutting unnecessary burning lights down.
For each EIB Group address you can specify the follow-up time and a range of daytime where
this function will be active.
In addition it is possible to specify a maximum value for the repetitions of this function to ensure
a durable lighting after expiration of these optimization counts. During the night this counter is
reset to 0 so this function is again active on the next day.
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
EIB Group conjunctions
An important and very often necessary function is the linkages between a EIB master group
address and one or more further EIB slave groups. If the master group changes its value all
slave addresses will become the value which is assigned for this EIB slave group. Additionally
you can specify a period of daytime where this linkage is active.
Own functions and programs
In order to become fair of all possibly arising requirements, you can write your own functions.
These functions and/or programs are developed on your normal workstation and transferred with
upload functions into the gateway. As programming language the PHP Scripting language is
used because of its multipurpose functionality and its name recognition. With this language it is
possible to implement almost all building-technical requirements without large learning
expenditure. Your developed programs have direct access to the heart of the gateway, the
database. It is possible to develop complicated algorithms for example PID automatic controllers,
adaptive optimized heating curves an further more. You can start your developed functions and
programs either directly over the Web Fontend or by schedules. For safety reasons some PHP
commands are not allowed to use in your Programs and Functions. This concern accesses to the
file system as well as the call of system commands. While uploading your Programs to the
Gateway all not allowed function calls are deleted automatically.
(See Manual for further information)
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
Sun-blind optimization
One of the most important and used functions in the building engineering is the function of the
sun-blind optimization. There are generally two reasons, in order to equip a building with sun
protection. On the one hand the prevention of the glare of an user while he is working and on
the other hand an effective measure for saving cooling energy is the reason for closing the
blinds automatically when the sun is shining into this area. In order to consider these two
factors sufficiently, it is necessary to be able to close the shutters before the sun shines into
the room and after the sun moved further on you will drive up the shutter again in order to use
the daylight again in this room. Since the sun changes season-dependently its course, a
differentiation of the control should take place dependent on the respective conditions of the
sun. If one assumes that the largest radiation energy of the sun is then delivered into the
room, when it stands perpendicularly to the window, then it is necessary to have individual
optimization values for each room. In addition an individual optimization of each area makes
it easy to deal with the special desires of the room user.
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
To realize all these requirements a knowledge of the following sun and room values are necessary:
Azimuth of the sun
Elevation of the sun
Does the sun shine actual?
The direction of the room window
For the examination of the actual sunshine an externally attached light sensor is necessary.
This sensor decide whether the sunlight intensity is strong enough to switch the binary EIB Group
“Sunshine” on or off. A threshold value prevents changing this value all the time.
In order to determine the position of the sun (azimuth and elevation), it is only necessary to give the
Gateway the position of the building as well as the correct time.
With the help of this information the Gateway is able to calculate internally the position of the sun.
For each room a minimum and a maximum degree of angle number (0..360°) can be specified.
If the position of the sun lies in range and if the sun shines actual, then this shutter is closed by
the Gateway with the help of its EIB group address. An optimization counter, which logs the
number of the optimization for each area separated, prevent the room user from opening and closing
the shutter all the time.
With the help of a maximum value an exact optimization number of the shutters can be arranged.
This counter is set to zero once a night to ensure the optimization on the next day.
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
An shutter optimization takes place in the following steps:
Examination of the light intensities
Examination of the position of the sun
Comparison of the position of the sun with the angle ranges of the
individual rooms
Examination of the optimization counter of individual rooms
Switch the respective actuator in the room
Increase the respective optimization counters, in order to prevent
repeated driving.
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
Capabilities BACnet
You can use every free BACnet Device-ID for your Gateway.
The Gateway supports the BACnet Service „I‘am“,“I have“
The following Objecttypes are supported:
Analog Input
Analog Output
Analog Value
Binary Input
Binary Output
Binary Value
Each Object has the following BACnet Properties can be accessed
ObjectName Name of Object - (max. 100 Character)
ObjectDescription Descriprion (max. 100 Character)
PresentValue Value of the Object
StatusFlags (incl. AlarmState )
Additional for Outputs:
Priotity Array
Additional for Binaries:
ActiveText and InactiveText
Additional for Analogs:
Unit
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway
V2
Capabilities EIB
The following EIB EIS Types are supported
EIS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Usage
Switching 1Bit
Dimmer-Control 4Bit
Time 3Byte
Date 3Byte
Floating Point 2Byte
Relativ value 1Byte
Blinds 1Bit
Force Control 2Bit
IEEE Floating Point 4Byte
Counte 2Byte
Counter 4Byte
AccessCode 4Byte
ASCCII Character
Counter 1Byte
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de

HRC Homeboy ®
EIB BACnet Gateway V2
Technical data
Power Requirement +5V/4A
Operating Temp 0 ~ 60°C ( 32-140 °F)
Operating Humidity 0% - 90% relative humidity, non-condensing
Size (W x H x D) 170 x 123 x 56 mm
Weight 970g
Certification CE,FCC
Power consumption about 20 VA
Scope of delivery
Central processing unit in aluminium case
EIB RS232 Bus coupler.
Power supply 110V-240V
RS232 cable
Patch cable CAT5
Manual
Software Design and programming
Documentation
Editorship
Dipl.Ing (FH) Heiko Henner
Dipl.Ing (FH) Heiko Henner
Dipl.Ing (FH) Heiko Henner / Roul Placzek
© 2008 HR Controls Ltd. & Co. KG
Lilienstraße 6
40699 Erkrath
Tel. 02104/831534
Fax 02104/1384850
homeboy@hrcontrols.de
www.hrcontrols.de