Buderus Logamatic LON-Gateway Manual

For heating contractors
during project planning.
Technical Information Interface with DDC
Logamatic LON-Gateway
6 720 642 841-00.1RS
6 720 643 554 (01/2010) US/CA

Contents
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
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Contents
1 Explanation of symbols and safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Guideline to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Specified communication objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6 Logamatic LON-Gateway firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6.1 Firmware when delivered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6.2 Procedure for updating firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Network interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Overview of the SNVTs for variant 2 boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Description of the SNVTs for variant 2 boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.2 Heating zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.3 DHW heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2.4 Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2.5 Floor-standing boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.6 Solar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3 Overview of the SNVTs for variant 4 boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 Description of the SNVTs for variant 4 boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4.2 Heating zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.4.3 DHW heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.4 Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.5 Boiler 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.6 Boiler 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.4.7 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4 Operating basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements! 3
Contents
5 Incorporation of Logamatic 4000 in LON networks via Logamatic LON-Gateway . 39
5.1 Structure of the hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2 Creating LON networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2.1 Commissioning LON networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.2.2 Decommissioning LON networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6 The LON-Gateway as LonMark object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.1 Variant 2 boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2 Variant 4 boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7 Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Explanation of symbols and safety instructions
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
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1 Explanation of symbols and safety instructions
1.1 Guideline to symbols
Warnings
Signal words at the beginning of a warning are used to indicate the type and seriousness of the
ensuing risk if measures for minimizing damage are not taken.
•NOTE indicates that minor damage to property may occur.
•CAUTION indicates possible minor to medium personal injury.
•WARNING indicates possible severe personal injury.
•DANGER indicates that severe personal injury may occur.
Important information
Additional symbols
Warnings are indicated in the text by a warning triangle and a gray background.
In case of danger from electric shock, the exclamation point on the warning triangle is
replaced with a lightning symbol.
Important information that presents no risk to people or property is indicated with this
symbol. It is separated by horizontal lines above and below the text.
Symbol Meaning
BSequence of steps
ÆCross-reference to other points in this document or to other documents
• Listing/list entry
–Listing/list entry (2nd level)
Tab. 1

Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements! 5
Explanation of symbols and safety instructions 1
1.2 Safety instructions
Installation and commissioning
The Logamatic LON-Gateway interface module has been designed and built in accordance with
currently recognized standards and safety requirements.
However, dangers or property damage may arise if it is used improperly.
BObserve these instructions to ensure satisfactory operation.
BThe appliance may only be installed and started up by a trained installer.
BAll changes and adjustments made via superior control systems must meet the heating system
requirements.
Risk of death from electric shock
BThe power supply must be connected by a qualified electrician.
BThe terminal diagram must be followed.
BBefore opening the appliance, isolate all poles of the mains power supply and secure against
unintentional reconnection.
BNever install this appliance in wet rooms.
BEnsure that a circuit breaker is available to disconnect all poles from the mains power supply.
If there is no circuit breaker, you will need to install one.
Risk of damage from operator error
Operator errors can cause injury and damage to property.
BEnsure that children never operate this appliance unsupervised or play with it.
BEnsure that only individuals who can operate this appliance correctly have access to it.
Device damage from electrostatic discharge (ESD)
BBefore unpacking the module, touch a radiator or a grounded metal water pipe to discharge any
electrostatic charge in your body.
Damage from incorrect spare parts
BOnly use original Buderus spare parts. Damage caused by the use of spare parts not supplied
by Buderus are excluded from the Buderus warranty.
WARNING: Only transformers with following specification are permitted:
6 V AC; 400 mA. The transformer is not part of the product! Please take care to use a
reliable product which meets our requirements shown above. Do not mount the
transformer internally!
Buderus does not accept responsibility for systems which contravene the Installation
instruction or addition documentation in scope of delivery.
The transformer must be mounted in a separate enclosure which is rated for this purpose.

Product description
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
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2
2 Product description
2.1 Correct use
The Logamatic LON-Gateway may only be used to connect Buderus boilers with control panel from
the Buderus Logamatic 4000 control series to superior control and/or building control systems via
LON-BUS.
2.2 Disposal
BElectronic components do not belong in household waste.
Dispose of defunct modules correctly through an authorized disposal site.

Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements! 7
Product description 2
2.3 Product description
The Logamatic LON-Gateway is incorporated into a LON network via a twisted pair cable (twisted
2-wire line). The twisted pair cable is protected against reverse polarity.
Defined data of the Buderus control panel is implemented with the Logamatic LON-Gateway
interface on standard network variable types (SNVTs) for the LON data bus. The communication
includes forwarding of error messages, operating messages, and actual values, as well as changing
of set points and operating modes for boilers and consumers.
Fig. 1 Block diagram
1Superior control system (building control system)
2LON Gateway
Making the electrical connections
Logamatic LON-Gateway
Connection of the Logamatic LON-Gateway
with Logamatic 4000
ECOCAN-BUS interface (BUS communication),
3000 ft (1000 m) shielded cable
Connection of Logamatic LON-Gateway to
LON networks
FTT-10A transceiver for incorporation via 2-wire cable
(twisted pair) to standardized LON BUS network; line or
free BUS topology possible
Maximum cable length for FTT 10 depending
on the cable types used (see Echelon docu-
mentation).
JY(ST)Y 2x2x0,8: max. 1050 ft (320 m) for node to node,
1640 ft (500 m) total
Cat5: max. 820 ft (250 m) for node to node 1480 t (450 m)
Tab. 2 Electrical connections on the LON-Gateway

Product description
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
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Product features of the LON-Gateway
• Can be used with all digital Logamatic 4000 control panels
• Interface can be equipped after the fact for the superior control system or for LON thermostats,
integration into existing building control technology/direct digital control (GLT/DDC)
• Interoperability through use of the standard network variable types (SNVT) assured according to
LonMark®
• Provision of the SNVT data for systems consisting of:
2.4 Specifications
2.5 Specified communication objects
With the LON-Gateway, selected data from up to four Logamatic 4000 control panels can be
exchanged via LON data bus with third-party control systems.
In addition to the communication objects for the first boilers, which are a component of the control
panel, additional functions in the form of modules for multi-boiler systems, heating zones, DHW, and
solar can be added.
Communication objects Variant 2 boiler Variant 4 boiler
Boiler 2 4
Heating zones 5 1
DHW zone with tank charging pump and
recirculation pump
11
Solar thermal system for DHW heating 1 -
Tab. 3 Variants
Unit Logamatic LON-Gateway
Power supply L 6 V AC, 400 mA
Frequency Hz 50/60 Hz
Power consumption VA 1.5
Dimensions (width/height/depth) inches (mm) 5-1/8" / 5-1/2" / 9/16"
(130/140/40)
Weight oz (g) 14 (400)
Operating temperature °F (°C) 40 to 122 (5 to 50)
Protection level IP40
Tab. 4 Specifications
If heating zones are served via LON, no other remote controls, e.g. Buderus remote
control BFU, may be connected to this heating zone.

Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements! 9
Product description 2
y= Basic equipment
o= Optional (required accessories in parentheses)
–= Not required
Requirement
1 boiler
5 heating zones
1 DHW
1 solar
2 boiler
5 heating zones
1 DHW
1 solar
4 boilers
1 heating zone
1 DHW
Expansion
for heating
zones 3, 4 1)
1) Logamatic 4122 required if LON heating zones 3 and 4 are required in one and two-boiler systems.
Logamatic
4211
Logamatic
4121
Logamatic
4321
Logamatic
4323
Logamatic
4122
Boiler with
Logamatic 4000
y
(ZM422)
–o
2)
(FM458)
2) Function module FM458 combines boiler with the Logamatic 4000 and Logamatic EMS control system.
o2)
(FM458)
–
Boiler with
Logamatic EMS
–y
(ZM424)
o
(FM456 in
slot 2)
o2)
(FM458)
o2)
(FM458)
–
DHW heating y
(ZM422)
y
(ZM424)
o
(FM441 in slot 2)
o
(FM441 in slot 1)
–
LON HK 1 o
(FM442 in
slot 1)
y
(ZM424)
o
(FM442 in
slot 1)
o
(FM441 in
slot 1)
o
(FM441 in slot 1)
–
LON HK 2 o
(FM442 in
slot 1)
y
(ZM424)
o
(FM442 in
slot 1)
–– –
LON HK 5 y
(ZM422)
––o
(FM442 in
slot 3)
–– –
Solar DHW
heating
o
(FM443 in
slot 2)
o
(FM443 in slot 2)
o
(FM443 in
slot 2)
–– –
LON HK 3
LON HK 4
o1) o1) o1) o
(4322 with
FM442 in
slot 2)
–– o
(FM442 in
slot 2)
LON flasher
version
LON Flasher
2B_00
LON Flasher
2B_E_00
LON Flasher
2B_E_00
LON Flasher
2B_00
LON Flasher
4B_00
LON Flasher
4B_00
XIF file version LON_2B_00 LON_2B_00 LON_2B_00 LON_2B_00 LON_4B_00 LON_4B_00
Address of
Logamatic
control panel
1111
3)
3) ECOCAN-BUS address of the Logamatic 4321 control panel on the first boiler; additional boilers with
Logamatic 4321 control panel of the 4322 are assigned ECOCAN-BUS addresses 2 to 4.
13) 12
Tab. 5 Overview of LON-Gateway and Logamatic control system

Product description
Technical Information Logamatic LON-Gateway - Subject to modifications resulting from technical improvements!
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2.6 Logamatic LON-Gateway firmware
2.6.1 Firmware when delivered
When delivered, the firmware version LON_Flasher_2B_00 is preinstalled. This version is for a
heating system with floor-standing boilers with Logamatic 4321. If you need another firmware variant
(e.g. LON_Flasher_4B_00) for your installation, it is easy to update the firmware. (see procedure for
updating firmware)
2.6.2 Procedure for updating firmware
First the LON-Gateway must be connected to the power supply and connected on-site to your
computer via the RS232 interface or USB converter.
BObtain the desired firmware from Buderus and, start the LONFlasher*******.exe.
BSelect the COM port.
BStart the update with the Flash button.
A display informs you about the current progress. The update is only complete when a message
"...successful!" appears.
BWhen a message "...successful!" appears, confirm with OK.
The update is complete.
After the successful update, disconnect the LON-Gateway from the line voltage for approx.
2 minutes to perform a reset. This completes the firmware update.
The firmware version of your LON-Gateway is displayed via the Logamatic ECO-SOFT
4000/EMS service software (Start communication -> Select COM port settings ->
Direct connection).
You can find the correct COM port under: Windows XP from the device manager
(Control panel -> System -> Hardware -> Device manager -> COM port).
Procedure for Windows Visa and Windows 7: Control panel -> Hardware and Sound -
> Device manager -> COM port.