Viessmann WAGO 750-8212/000-100 Operating instructions

Installation and service instructions
for contractors
VIESMANN
BMS communication with heating systems via BACnet
WAGO BACnet/IP gateway
WAGO BACnet/IP gateway
6175460 CA 5/2021 Please keep safe.

2
Please follow these safety instruc-
tions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the risk
of injury.
!Please note
This symbol warns against the risk
of material losses and environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are intended exclu-
sively for qualified contractors.
■Work on electrical equipment may only
be carried out by a qualified electrician.
■The system must be commissioned by
the system installer or a qualified per-
son authorized by the installer.
■Training is required for handling the
components of the WAGO-I/O-System
750. The training includes the design
notes – see also the manual at
www.wago.de (search text: "Projek-
tierungshinweise").
Regulations to be observed
■National installation regulations
■Statutory regulations for the prevention
of accidents
■Statutory regulations for environmental
protection
■Codes of practice of the relevant trade
associations
■Current country-specific safety regula-
tions
Safety instructions for working on the system
Working on the system
■Isolate the system from the power sup-
ply (e.g. by removing the separate fuse
or by means of a mains isolator) and
check that it is no longer live.
■Safeguard the system against recon-
nection.
Danger
Hot surfaces can cause burns.
■Before maintenance and service
work, switch off the appliance and
let it cool down.
■Never touch hot surfaces on the
boiler, burner, flue system or pipe-
work.
Safety instructions
Safety instructions
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3
!Please note
Electronic assemblies can be dam-
aged by electrostatic discharge.
Prior to commencing any work,
touch grounded objects such as
heating or water pipes to discharge
static loads.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise the
safe operation of the system.
Always replace faulty components
with genuine Viessmann spare
parts.
Auxiliary components, spare and
wearing parts
!Please note
Spare and wearing parts that have
not been tested together with the
system can compromise its func-
tion. Installing non-authorized com-
ponents and making non-approved
modifications or conversions can
compromise safety and may invalid-
ate our warranty.
For replacements, only use original
spare parts supplied or approved by
Viessmann.
Safety instructions for operating the system
If you smell flue gas
Danger
Flue gas can lead to life threatening
poisoning.
■Shut down the heating system.
■Ventilate the installation site.
■Close doors to living spaces to
prevent flue gases from spread-
ing.
What to do if water escapes from the
appliance
Danger
When water escapes from the
appliance there is a risk of electro-
cution.
Switch off the heating system by
means of an external isolator (e.g.
fuse box, domestic power distribu-
tion).
Flue systems and combustion air
Ensure that flue systems are clear and
cannot be sealed, for instance due to
accumulation of condensate or other
causes. Ensure an adequate supply of
combustion air.
Instruct system users that subsequent
modifications to the building characteris-
tics are not permissible (e.g. cable/pipe-
work routing, cladding or partitions).
Danger
Leaking or blocked flue systems, or
an inadequate supply of combus-
tion air can cause life threatening
poisoning from carbon monoxide in
the flue gas.
Ensure the flue system is in good
working order. Vents for supplying
combustion air must be non-closa-
ble.
Safety instructions
Safety instructions (cont.)
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Extractors
Operating appliances that extract air to
the outside (cooker hoods, extractors,
air conditioning units, etc.) can create
negative pressure. If the boiler is oper-
ated at the same time, this can lead to
reverse flow of the flue gas.
Danger
The simultaneous operation of the
boiler and appliances that extract
air to the outside can result in life
threatening poisoning due to
reverse flow of the flue gas.
Fit an interlock circuit or take suita-
ble steps to ensure an adequate
supply of combustion air.
Safety instructions
Safety instructions (cont.)
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1. Information Disposal of packaging ............................................................................ 6
Symbols ................................................................................................. 6
Intended use .......................................................................................... 6
Product information ................................................................................ 7
■Functions ............................................................................................ 7
Spare parts lists ..................................................................................... 7
2. Preparing for installation ................................................................................................................ 8
3. Installation sequence Process overview ................................................................................... 9
Installing the gateway and power supply unit ........................................ 9
■Arrangement on the top-hat rail .......................................................... 10
■Installing the gateway ......................................................................... 11
■Installing the power supply unit .......................................................... 12
Connections and operating elements .................................................... 13
■WAGO BACnet/IP gateway ................................................................ 13
■LED indicators .................................................................................... 14
■Power supply unit ............................................................................... 14
Connecting and releasing cores ............................................................ 15
■Gateway ............................................................................................. 15
■Power supply unit ............................................................................... 15
Establishing the CAN bus connection .................................................... 16
Connecting the plug-in attachment ........................................................ 18
■WAGO BACnet/IP gateway ................................................................ 18
Establishing the connection to the BACnet/IP gateway ......................... 19
Connecting the gateway to the power supply unit ................................. 20
■Connecting cores in the power supply unit ......................................... 20
Power supply ......................................................................................... 21
■General information ............................................................................ 21
■Power supply via the mains isolator ................................................... 22
■Power supply independent of the mains isolator ................................ 23
4. Commissioning and
adjustment
Commissioning the gateway .................................................................. 24
5. Specification ................................................................................................................ 28
6. Certificates Declaration of conformity ....................................................................... 30
7. Appendix Final decommissioning and disposal ..................................................... 31
8. Keyword index ................................................................................................................ 32
Index
Index
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6
Please dispose of waste packaging in line with statu-
tory regulations.
Symbols
Symbol Meaning
Reference to another document with more
detailed information
1.
Work step illustrated:
The numbering corresponds to the order of
the work sequence.
Warning about material and environmental
damage
Live components
Pay particular attention.
■Component must engage audibly.
or
■Audible signal.
■Insert new component.
or
■In conjunction with a tool: clean the sur-
face.
Dispose of the component properly.
Hand in the component at a suitable col-
lecting point. Do not dispose of the compo-
nent with domestic refuse.
Intended use
The gateway is only intended to be installed and oper-
ated in conjunction with Viessmann control units, with
due attention paid to the associated installation, serv-
ice and operating instructions. The gateway may only
be used in systems with supported Viessmann heat
and power generators.
The gateway can only be used with the user and com-
munication interfaces defined in the product documen-
tation for the following purposes:
■To monitor systems
■To operate systems
■To optimize systems
With regard to the communication interfaces, ensure
on site that the system requirements specified in the
product documentation are met at all times for every
transfer medium employed. Only use the specified
components for the power supply (e.g. power supply
units).
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Information
Disposal of packaging
6175460
Installation

7
Commercial or industrial use for a purpose other than
the monitoring, operation and optimization of suppor-
ted, approved systems shall be deemed inappropriate.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the Viessmann
system are modified from their intended function.
Product information
The WAGO BACnet/IP gateway is used to connect
Viessmann control units to BACnet systems. For sup-
ported devices and other valid product documentation,
see www.automation-gateway.info
Functions
The system user can use the following functions via
the gateway when connected to a BACnet system:
■Transferring heating system operating states
■Setting heating system parameters
■Relaying fault and maintenance messages
Spare parts lists
Information on spare parts can be found at
www.viessmann.com/etapp or in the Viessmann
spare part app.
Information
Intended use (cont.)
6175460
Installation

8
WAGO BACnet/IP gateway system overview
100 - 240 V~ 24 V CAN-BUS
LAN BACnet/IP
A
B
DE
F
C
Fig. 1
AViessmann heat generator
BBuilding management system
CTerminator 120 Ω
DGateway
EPower supply unit
FLaptop with web browser and WAGO Web-Visu
Preparing for installation
Preparing for installation
6175460
Installation

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Step Responsibility Page
1 Install the gateway and power supply unit. Contractor 9
2 Establish the CAN bus connection. Contractor 16
3 Connect the plug-in attachment. Contractor 18
4 Establish the connection to BACnet. IT expert/system integrator 19
5 Connect the gateway to the power supply unit Electrician 20
6 Power supply Electrician 21
7 Commission the gateway. IT expert/system integrator 24
Installing the gateway and power supply unit
The gateway and power supply unit are suitable for
mounting on top-hat rails in control panels:
TS 35 to EN 50 022: 35 x 15 and 35 x 7.5.
!Please note
Incorrect ambient conditions and installation
locations may impair data transfer and cause
damage to the gateway.
The gateway with its components is an open
device with IP rating IP 20. It should only be
mounted in enclosures, cabinets or in electrical
operating rooms.
Ambient conditions during operation
■Permissible ambient temperature: 0 to 40 °C
■Permissible relative humidity:
–0 to 39 °C: ≤ 95 %
–≥ 40 °C: ≤ 50 %
■No direct sunlight
!Please note
Operation by unauthorized persons may result
in damage to the system.
Access to the gateway must only be possible for
authorized specialists with a key or tool.
Requirements for the enclosure
Material Sheet steel Plastic
Min. dimensions
(width x height x depth)
200 x 200 x 120 mm 278 x 278 x 130 mm
Protective conductor Connect the enclosure to the protec-
tive conductor.
Connect the top-hat rail to the protec-
tive conductor via a protective conduc-
tor terminal.
Flammability class —Min. flammability class V-1 according
to EN 62368-1 or EN 60950-1
Grounding Enclosure and top-hat rail:
Depending on phase conductor
cross-section with min. 2.5 mm2
Top-hat rail:
Depending on phase conductor cross-
section with min. 2.5 mm2
IP rating ■Installed at a height of up to 1.60 m: IP 20D
■Installed at a height of 1.61 m or higher: IP 20B
Top-hat rail mounting ■TS 35 to EN 50022
■Length: Min. 190 mm
Installation sequence
Process overview
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Installation

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Overview of connecting cables
Connecting cables Length
Standard delivery:
Cable cores between gateway and power supply unit 0.52 m
Accessories:
CAN bus cable 7 m
On site:
Recommended power cable 3-core:
■H05VV-F3G 1.5 mm2
■H05RN-F3G 1.5 mm2
Arrangement on the top-hat rail
With sub-distribution boards, mount both devices on a
lower top-hat rail.
WAGO BACnet/IP gateway
Fig. 2
Installation sequence
Installing the gateway and power supply unit (cont.)
6175460
Installation

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Installing the gateway
2.
1.
3.
Fig. 3
4. Affix the supplied rating plate (self-adhesive) to the
electrical system in a visible location.
Installation sequence
Installing the gateway and power supply unit (cont.)
6175460
Installation

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Installing the power supply unit
1.
2.
4.
3.
Fig. 4
Installation sequence
Installing the gateway and power supply unit (cont.)
6175460
Installation

13
WAGO BACnet/IP gateway
P
O
Q
A CB D E
+ +
SYS
0V
RST
RUN
l/0
MS
NS
BT
24V
‒
F
LMN
H
G
K
+
SD
RESET
STOP
RUN
U6
U5
U4
U3
U2
U1
- -
Fig. 5
ASerial interface
BLED status indicators
CReset button RST
DStatus LED for supply voltage
EStatus LED for CAN bus interface
FPlug-in attachment with terminator: See page 18
GCAN low, for looping through the CAN bus
HCAN high, for looping through the CAN bus
KCAN bus shield
L24 V supply voltage connection
MDo not open!
NOperating mode switch
RUN Standard mode
Factory setting: Do not adjust!
STOP Only for update process; see WAGO
commissioning manual.
RESET Do not adjust!
OService interface: LAN connection for connection
to PC/laptop or BACnet/IP connection
PMemory card slot
QFixing for mounting on the top-hat rail
Installation sequence
Connections and operating elements
6175460
Installation

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LED indicators
LED Status Meaning Measure
User LED U1 Green The connection to the heat gen-
erator is active.
—
Red The CAN bus interface has the
status "Bus Off": Short circuit or
other serious fault
■Check CAN bus connection:
Plug, cable, terminator
■Check whether heat generator
is switched on.
■Check installation and connec-
tions of gateway and power
supply unit.
■If the fault cannot be rectified,
contact Viessmann Werke
Technical Service.
Other Fault Contact Viessmann Werke Tech-
nical Service.
Power supply unit
A B
L N PE + + - -
Fig. 6
A INPUT 100 to 240 V, 50 to 60 Hz
B OUTPUT 24 V
1.3 A
Installation sequence
Connections and operating elements (cont.)
6175460
Installation

15
Gateway
1.
2.
3.
Fig. 7 Example: BACnet/IP gateway
Power supply unit
3.
1.
2.
Fig. 8
Installation sequence
Connecting and releasing cores
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Installation

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■The Viessmann CAN bus is designed for "line" bus
topology with a terminator at both ends (accesso-
ries).
■With CAN bus, the transmission quality and the
cable lengths depend on the electrical properties of
the cable:
–Only use cable types listed in the following table.
–Only use one cable type within a CAN bus.
Recommended cable type (on site):
CAN bus cable In line with ISO 11898-2, twisted pair cable, shielded
■Cable cross-section 0.34 to 0.6 mm2
■Characteristic impedance 95 to 140 Ω
■Max. length 200 m
Alternative cable types (on site):
CAN bus cable 2-core, CAT5, shielded
■Max. length 50 m
CAN bus cable 2-core, CAT7, shielded
■Max. length 200 m
Installation sequence
Establishing the CAN bus connection
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Installation

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+ +
SYS
0V
RST
RUN
l/0
MS
NS
BT
24V
SD
RESET
STOP
RUN
U6
U5
U4
U3
U2
U1
‒ ‒
‒+
S S
A
B
Fig. 9
ACAN bus shield
BPlug lA for controlling the heat generator (stand-
ard delivery of the gateway)
Installation and service instructions for heat gen-
erator control unit
Installation sequence
Establishing the CAN bus connection (cont.)
6175460
Installation

18
WAGO BACnet/IP gateway
The plug-in attachment (standard delivery) must be
plugged in.
Do not connect the plug-in attachment until the CAN
bus cable has been connected.
If the gateway is at the beginning or end of the CAN bus:
A
Fig. 10
APlug-in attachment with terminator (standard deliv-
ery)
If the gateway is not at the beginning or end of the CAN bus:
Plug in the plug-in attachment without the terminator.
Use the plug-in attachment for looping through the
CAN bus.
Installation sequence
Connecting the plug-in attachment
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Installation

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A
4.
2.
B
1.
2x
3.
2x
Fig. 11
APlug-in attachment (standard delivery)
BTerminator
Establishing the connection to the BACnet/IP gateway
The connection to the network must be established by
the system integrator.
Installation sequence
Connecting the plug-in attachment (cont.)
6175460
Installation

20
+ +
SYS
0V
RST
RUN
l/0
MS
NS
BT
24V
SD
RESET
STOP
RUN
U6
U5
U4
U3
U2
U1
‒ ‒
‒+
S S
A
Fig. 12
AConnect BACnet/IP via RJ45 interface
Connecting the gateway to the power supply unit
Connecting cores in the power supply unit
Installation sequence
Establishing the connection to the BACnet/IP… (cont.)
6175460
Installation