CAN bus converter - Varmt vand fra solen

Technische Alternative
CAN-BC
elektronische Steuerungsgerätegesellschaft mbH.
Vers.: A1.05EN
A-3872 Amaliendorf, Langestr. 124, Fax 02862 53635 7
CAN bus converter
The CAN bus converter makes additional interfaces available for the freely programmable
universal controller UVR1611.
A CAN bus is used for communication. Parameterisation of the CAN bus converter takes
place either via the BL-NET, the CAN monitor or the UVR1611 controller.
•
•
•
•
Standard CAN bus interface
Second CAN bus interface with selectable bus rate, optionally available as a fibre
optic version
EIB/KNX interface
M-Bus interface
Table of contents
System requirements for the UVR1611 Controller................................................................... 4 Types ....................................................................................................................................... 4 Interface description ................................................................................................................ 5 Standard CAN- Bus.............................................................................................................. 5 Potential-free CAN bus with increased interference resistance............................................ 5 CAN cable selection and network topology .......................................................................... 5 CAL-fibre optic transmission path ........................................................................................ 6 M-Bus (measurement bus)................................................................................................... 6 EIB/KNX (European installation bus) ................................................................................... 6 Parameterisation...................................................................................................................... 7 Main menu ........................................................................................................................... 8 MENU Version .................................................................................................................. 8 MENU Network ................................................................................................................. 8 MENU M-Bus.................................................................................................................. 12 MENU Data administration ............................................................................................. 13 Electrical connection .............................................................................................................. 14 Technical data ....................................................................................................................... 15 Installing the device ............................................................................................................... 15 Maintenance .......................................................................................................................... 15 Safety requirements............................................................................................................... 15 3
System requirements for the UVR1611 Controller
So that the CAN bus converter can also be parameterised with the controller, the following is
necessary:
• the UVR1611 controller has an operating system ≥ A2.21 or
• the controller has a boot sector ≥ B1.02 and a bootloader BL232 or BL-NET to update
the UVR1611 controller.
Controllers with a boot sector < B1.02 must be returned to the factory for updating!
Procedure for updating a UVR1611 controller to the latest version:
1) Download and install the program Memory Manager ≥ V2.07 from the Technische
Alternative home page (www.ta.co.at).
2) From the TA home page download firmware ≥ 2.6 (BL232) or 1.28 (BL-NET) for the
bootloader and use to update the bootloader.
3) Download the operating system (version ≥ A2.21) from the TA home page and use to
update the controller.
Supply capacity
The UVR1611 controller makes the correct supply voltage available for most bus members including the bus converter. No more than three devices (CAN monitor, bus-expansion, etc.)
can be supplied by each controller.
Types
There are 3 different types available, each with a standard CAN bus interface and the
following additional interfaces:
Bus converter CAN-BC/C:
• Second isolated CAN-bus interface
• M-Bus interface
Bus converter CAN-BC/E
• EIB/KNX interface
• M-Bus interface
Bus converter CAN-BC/L
• Second CAN bus interface with SC coupling for fibre optic cable (2 x 50/125 µm).
• M-Bus interface
This operating manual applies for all types.
4
Interface description
Standard CAN- Bus
This is the connection to the surroundings within a controller network. For example, this could
be all CAN bus members within a building, comprising UVR1611 controllers, CAN I/O
modules, CAN monitors and bootloaders. This bus and its properties are described in detail
in the UVR1611 manual.
Potential-free CAN bus with increased interference resistance
For remote connection within a controller network or network group. This could be several
groups of standard CAN bus connections and/or further remote bus members such as
UVR1611 controllers, bootloaders or similar, for example in a heating system.
This interface is electrically isolated via an optical transmission path from the standard CAN
bus.
It is also recommended that a bus converter is used with this connection on the opposite end
of the cable, so that over the entire remote connection no critical electronic parts are directly
connected to the bus. For such cases a sliding switch provides an option for selecting a lower
data transfer rate than the usual 50 kBaud to increase the resistance to interference as well
as the maximum distance.
Notice: Each CAN bus member is labelled with its own CAN-address (node number) from
a total of 62 possible addresses. When planning the network, it should be borne in mind, that
a bus converter does not decouple the network where data is concerned and thus the
number of available node numbers is not doubled. Indeed, as a bus member, each individual
converter requires its own node number, which further reduces the maximum number of
active nodes. However its own number is the same on both CAN sides (standard and
potential-free).
Termination potential-free CAN-Bus
Termination standard CAN-Bus
CAN cable selection and network topology
The basics of bus cabling are likewise described in detail in the UVR1611 manual.
Hence only bus terminations are considered here. Each CAN network must be provided with
an 120 Ohm bus termination at the first and last network member (terminate using a jumper).
Hence each CAN network always has two terminating resistances (each at the end). Spur
lines or star-shaped CAN topologies are not permitted by the official specification!
5
CAN-fibre optic transmission path
This technology represents the most interference-free remote connection. A 50/125µm
multimode optical fibre with an SC connector system is used rather than copper cable.
The operation of this technology is guaranteed up to a length of 300 m, has been tested in
the field up to 500 m and all components are indeed designed to work to over 1000 m.
As there is an optical receiver for each optical transmitter, such transfer paths must have
a bus converter on both ends. A fibre optic pair is also necessary to support bi-directional
data transmission.
Fibre optic cable assembly:
The assembly of fibre optic cables can only be carried out by skilled personnel. Fibre optic
cables are not easily shortened, as the cut surface must be perfectly perpendicular to the
fibre axis and surface roughness on the cut surface must not exceed one micrometer.
Although a single optical fibre has a diameter of just over 0.1 mm, the full assembly of
a professional fibre optic cable has a diameter of some 10 mm. They are mainly supplied with
two fibre pairs (second pair is redundant), have high mechanical resistance and are even
rodent resistant.
The entire length is equal to the actual physical laid cable distance plus 2 m excess at each
end. After laying and prior to connection, the excess length is coiled up (coil diameter no less
than 200 mm) and secured using clips on a mounting plate which is secured to the wall
alongside the converter. The cable can be ordered in lengths up to 100 m and can even be
pulled through a cable protective tube. Above this length, skilled personnel are again needed
for cable "blowing". Technische Alternative GmbH cooperates with its partner in this field,
NBG Fiber - Optic GmbH, all over the globe. They manufacture the cables in the required
length and to the required optical quality as well as terminating them with SC connectors.
If necessary, they also provide the required skilled personnel and blowing apparatus.
M-Bus (measurement bus)
The M-bus is a master-slave system with a transfer rate of 2.4 kBaud and was developed for
reading data from utility meters (electricity, heat, water, gas). A single two-core cable is all
that is needed for connection. The slave can draw its power from the bus. The bus converter
(master) cyclically reads the values from the individual devices. As a master, this bus
converter is suitable for the parallel connection of up to three energy meters.
EIB/KNX (European installation bus)
The EIB/KNX connects sensors and actuators within a domestic installation. Here also, all
that is needed is a twin-core wire with the slave power supply being provided by the bus. The
cable has a slightly higher specification (twisted). A data rate of 9.6 kBaud is specified.
Data types EIS-type 1 (digital) and EIS-type 5 (analog) are supported. It is possible to
transmit 16 analog and 16 digital values in each direction (KNX -> CAN and CAN -> KNX).
6
Parameterisation
Parameterisation of the CAN bus converter takes place either via the BL-NET, the CAN
monitor or the UVR1611 controller. After connecting the CAN bus converter to a UVR1611 or
a CAN monitor via the CAN bus, the CAN bus converter appears with its node number
(factory setting: 48) under the menu item "Network/network nodes" on the UVR1611
("Network/active nodes" on the CAN monitor).
Display example on the UVR 1611:
NETWORK NODES
Active NODES
48 Info?
62 Info?
•
•
◄
All nodes are listed!
All devices in the network are listed here with their node number. Once a node is selected,
the following display appears:
INFO CAN-NODE48
- selected node number
Vend.ID: 00 00 00 CB
Pr.Code: 02 00 02 04
Rev.Nr.: 00 01 00 00
Des.:
BUS-CON
Load Menu
◄
Vend.ID:
Pr.Code:
Rev.Nr.:
Des.:
Manufacturer identification number (CB for Technische Alternative GmbH)
Product code of the selected node (here for a bus converter)
Revision number
Node product description
These data are fixed values specified by Technische Alternative and cannot be changed.
Load Menu (only by Expert level users): Access to the CAN bus converter menu level.
The UVR1611 controller or CAN monitor now serve as a display for the CAN bus converter,
Expert users can change all device-specific parameters and settings!
7
Main menu
MENU
Version display
CAN network and EIB/KNX settings
M-bus settings
For data transfer to the bootloader
Version
Network
M-Bus
Data Administration
MENU Version
BUS CONVERTER
Displays the version number and language of the bus
converter
Operat.Syst: A1.05EN
MENU Network
NETWORK
Node No.: 48
◄
The device has network address 48 (factory setting).
INPUT VARIABLE
OUTPUT VARIABLE
EIB source address:
Area/line/participant
1
1
1
Node No.:
Bus converter source address on the EIB
Every device in the network must have its own address (node number 1-62)!
Changing the node number:
CHANGE NODE NO.
Current no.:
New no.:
48
48
REALLY
CHANGE?
no
◄
The device has network address 48 (factory setting).
The new node number is selected here.
As the UVR1611 controller or CAN monitor (client) has a fixed connection to the bus
converter (server) via the set node number, changing the node number leads to this
communication connection being cancelled. I.e. after the change command, the client
displays the "Node number is changed". Then the client jumps back to the start page.
The new node number can then be used to make a new connection to the bus converter.
8
Input variable:
Messages from the CAN bus are read in here, converted and output to the EIB/KNX. EIStype 1 (digital) and EIS-type 5 (analog) are supported. Each network input must be allocated
to an EIB/KNX group address. In addition a weighting can also be specified for the analog
network inputs. There is an option for transmitting 16 digital and 16 analogue values from the
CAN bus to the EIB/KNX.
INPUT VARIABLE
Digital network inputs
Digital network input timeouts
DIGITAL:
Timeout:
◄
ANALOG:
Timeout:
Analog network inputs
Analog network input timeouts
Entering network inputs
Example: analog network input
INPUT VARIABLE ANA.
Number selection
1◄2 3 4 5 6
7 8 9 10 11 12
13 14 15 16
After selection of the input variable number:
ANA. NETW. INPUT
NW.Node:
anal. NW.Outp.:
Value:
NW Status:
1
1◄
1
234
OK
EIB group address:
Main/middle/subgroup
1
1
12
Weighting:
10
Selection of the network node
Selection of the network output for the selected node
Analogue value display (without unit and decimal place)
The value is transmitted trouble-free over the CAN bus
Entering the EIB/KNX address
This value represents a divisor for the value, in this case
the value "234" is forwarded as "23.4" over the EIB/KNX
bus.
The entry of digital network inputs is similar, instead of the value, the status (ON/OFF) is
displayed.
9
Timeouts:
Are monitoring functions that can cause reactions in the control strategy if bus messages are
missing (e.g. as a result of a device failure). The timeouts are sub-divided for 8 groups of
network inputs:
♦ digital network inputs 1-4, 5-8, 9-12 and 13-16
♦ analog network outputs 1-4, 5-8, 9-12, and 13-16
TIMEOUTS NETW.INP.
DIGITAL INPUT: 1...4
Timeout:
60 Min ◄
Setting of the timeout period
As long as the information is being read from the CAN bus, the network status is OK. If the
value has not been updated since the set timeout, the network status changes from OK to
Timeout.
Output variables:
Messages from the EIB/KNX bus are read in here, converted and output to the CAN bus.
EIS-type 1 (digital) and EIS-type 5 (analog) are supported. Each network output must be
allocated to an EIB/KNX group address! In addition, for the analog network outputs
a weighting and the measurement units can also be specified.
The option also exists for transmitting 16 digital and 16 analog values from the EIB/KNX to
the CAN bus.
OUTPUT VARIABLE
Digital network outputs
Transmit conditions for the digital network outputs
DIGITAL:
Transm.Conditions:
ANALOG:
TX cond. 1...8:
TX cond. 9...16:
◄
Analog network outputs
Transmit conditions for the analog network outputs
Transmit conditions for the analog network outputs
Entering output variables:
Example: analog network output
OUTPUT VARIABLE ANA.
1◄2 3 4 5 6
7 8 9 10 11 12
13 14 15 16
10
Number selection
After selection of the output variable number:
ANAL. NETW. OUTPUT
1
EIB group address:
Main/middle/subgroup
1◄
1
35
Unit:
°C
Weighting:
Value:
10
234
Entering the EIB/KNX address
Unit selection
This value represents a divisor for the value, in this case
the value "234" is forwarded as "23.4" over the CAN bus.
Analogue value display (without unit and decimal place)
The entry of digital network outputs is similar, instead of the unit, the weighting and the value,
the status (ON/OFF) is displayed.
Transmission conditions:
This menu determines the conditions for transmission of the output variables.
Digital network outputs:
TRANSM. NETW.OUTPUT
DIGITAL OUTP.: 1...16
On Change:
yes◄
Blocked:
10 Sec
Interval:
5 Min
Analog network outputs:
TRANSM. NETW.OUTPUT
ANALOG OUTP.:
1...4
On Change: > 30◄
Blocked:
10 Sec
Interval:
5 Min
...
...
The transmission conditions are divided into five groups:
♦ digital network outputs 1-16
♦ analog network outputs 1-4, 5-8, 9-12, and 13-16
If Changed yes/no: Transmission of a digital message if status is changed.
If Changed > 30: If the last analog value transmitted has been changed by more than
3.0 K, the data are transmitted again (= 30 because numbers are
transmitted without a decimal point).
Blocked 10 sec:
If the value changes within 10 seconds of the last transmission by more
than 30, the value is nevertheless only transmitted again after 10
seconds.
Interval 5 min.:
The value is transmitted every five minutes even if it has not changed by
more than 30 (3.0 K) since the last transmission.
11
MENU M-Bus
The following entries are listed in this menu:
M - BUS
ENABLE:
ON
Enables the M-bus interface
SLAVE ADDRESSES:
Address 1:
1◄ Data:
Selects slave address (1), displays the data
Address 2:
4
Data:
Selects slave address (4), displays the data
Address 3:
5
Data:
Selects slave address (5), displays the data
This interface is used to read out the data (pre-run and return temperatures, volume flow,
power and heat capacity) from up to three heat quantity counters, which are connected via an
M-bus interface, and to make the data available for CAN-bus data logging. In this respect, the
bus converter acts as the master, the connected heat quantity counters are the slaves.
Data display:
M – BUS DATA 1
T.Pre-run:
45.0
T.Return:
38.0 °C
FLOW:
0 l/h
POWER:
0.0 kW
Heat volume:
0 MWh
0.0 kWh
As both Winsol as well as the bootloader BL-NET do not currently support CAN bus
data logging, the first version of the M-bus is only available as a display page on the
bus converter!
12
MENU Data administration
DATA ADMINISTRATION
Current Funct. Data:
TA FACTORY SETTINGS
Last transfer:
successful
Name of the latest function data
Load Factory Setting
Loads the factory setting
DATA <=> BOOTLOADER:
Enters the sub-menu
Indicates whether the last function data transfer with the
bootloader was successful
Sub-menu Data <=> Bootloader:
DATA <=> BOOTLOADER
Upload Data:
BUSCON => BOOTLD.
Download Data:
BOOTLD. => BUSCON
Uploads function data into the bootloader
OPER.SYSTEM<=BOOTLD.:
Download Oper.System:
BOOTLD. => BUSCON
Downloads the current operating system from the
bootloader
Downloads function data from the bootloader
After selection of the bootloader storage location, confirmation of the security question and
the subsequent confirmation of the start button on the bootloader, data transfer starts.
Through its flash technology, the device is able to replace its own operating system (device
software) with a more current version (obtain from the download area under the address
http://www.ta.co.at) using the boot loader.
Importing a new operating system is only advisable, if it contains new, required functions.
Updating the operating system always represents a risk (comparable with flashing the PC
Bios) and requires an examination of all function data for compatibility problems, as these are
to be expected due to new function components!
13
Electrical connection (type dependent)
This should only be carried out by a qualified electrician in accordance with the relevant
local guidelines.
Warning: Only work on the inside of the device when it is not connected to power. If you
assemble the device with the power connected, it may be damaged.
Connect all bus cables to the PCB according to the labelling.
The first CAN-bus interface is designed for a bus rate of 50 kBaud. Consequently
communication with the UVR1611, CAN-Monitor, I/O-module and BL-NET devices is
possible. The second CAN-bus interface has a sliding switch for switching between the
following bus rates:
Maximum permitted bus length according to the
specification:
1) 50kBaud
1,000m
2) 20kBaud
2,500m
3) 10kBaud
5,000m
4) 5kBaud
10,000m
EIB/KNX, M-Bus and CAN-Bus connections with
a fixed baud rate of 50 kBaud
Observe polarity (see PCB printed labels)
Bus rate selection
for the second
CAN bus
Transmit
connection
fibre optic cable
Receive
connection
fibre optic cable
14
Second CAN bus connection
(electrically isolated), select
bus rate with sliding switch!
Technical data
M-Bus
Power consumption
for up to 3 slaves
max. 4 W
Installing the device
Screw the casing tray to the wall using the supplied fastenings fitted through the two holes
provided.
Create the network connection, as described in the chapter "Cable selection and network
topology", then reinsert the cover in the casing tray.
Maintenance
If treated and used correctly, the device will not require maintenance. To clean use only
a cloth dampened with a gentle alcohol (e.g. ethyl alcohol). Harsh solvents such as
chlorethenes or trichloroethylene are not admissible.
As the components relevant to accuracy are not subjected to loads if used properly, longterm deviation is very low. Therefore the device cannot be adjusted. Hence, no calibration is
possible.
During repair, the constructive characteristics of the device must not be changed. Spare
parts must correspond to the original parts and be used as intended.
Safety requirements
The device corresponds to the latest state of the art and fulfils all necessary safety
conditions. It may only be used or deployed in accordance with the technical data and the
safety requirements and regulations listed below. When using the device, the legal and safety
regulations apposite to the particular use are also to be observed.
Safe operation is not possible if the device
….has visible signs of damage,
….is not functioning,
….has been stored for a long period under unfavourable storage conditions.
If this is the case, deactivate the device and secure against unintentional use.
We reserve the right to make technical changes.
© 2009
15
Technische Alternative elektronische SteuerungsgerätegesellschaftmbH. A-3872 Amaliendorf
Langestr. 124, Tel 02862 53635, Fax 536357
--- www.ta.co.at --© 2009

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