WURM CAN-Bridge Product information

Brand
WURM
Model
CAN-Bridge
Type
Product information

WURM CAN-Bridge

WURM CAN-Bridge is a device used for electrical isolation of two CAN bus segments. It has an integrated 230V power supply and provides active suppression of incomplete telegrams. The device extends the number of possible CAN bus topologies and the total maximum possible CAN bus length. It also features integrated switchable CAN bus terminating resistors and a smart data filter. Different baud rates are possible on both CAN bus segments. Physical CAN bus measurement can be used to detect level errors and wiring errors.

WURM CAN-Bridge

WURM CAN-Bridge is a device used for electrical isolation of two CAN bus segments. It has an integrated 230V power supply and provides active suppression of incomplete telegrams. The device extends the number of possible CAN bus topologies and the total maximum possible CAN bus length. It also features integrated switchable CAN bus terminating resistors and a smart data filter. Different baud rates are possible on both CAN bus segments. Physical CAN bus measurement can be used to detect level errors and wiring errors.

For galvanic isolation of 2 bus segments
CAN-Bidge_V1.1.3_PI_2023-05_EN 1
Subject to technical changes
CAN-Bridge
1 CAN-Bridge
For galvanic isolation of 2 bus segments
1.1 Front view
Fig. 1: CAN-Bridge front view
1.2 Features
• Integrated 230V power supply
• Electrical isolation of two CAN bus segments
• Active suppression of incomplete telegrams
• Extends the number of possible CAN bus topologies
• Extends the total maximum possible CAN bus length
• Integrated switchable CAN bus terminating resistors
• Smart data filter
• Different baud rates possible on both CAN bus segments
• Physical CAN bus measurement to detect level errors and wiring errors
• Diagnostics mode for plug-in refrigeration units
• Simple handling
• Connection to the Wurm system via Wurm CAN communication bus (C-BUS) and
FRIGODATA XP
1.3 Scope of supply
• 1 x product information
• 3 x screw terminal socket
• 1 x terminal strip with end cover plate
• 2 x short PE connection leads
• 1 x adapter ZCB-ADP/CB-PI
• 1 x RJ45 patch cable
For galvanic isolation of 2 bus segments
2 CAN-Bidge_V1.1.3_PI_2023-05_EN
Subject to technical changes
CAN-Bridge
1.4 Safety instructions
Writing conventions
WARNING • Avoid the described hazard: Otherwise there is danger from electric voltage that can lead to
death or serious bodily injury.
CAUTION • Avoid the described hazard: Otherwise minor or medium bodily injury or property damage will
result.
For your safety
For safe operation and to avoid personal injury and equipment damage through operator error, always
read these instructions, become familiar with the device, and follow all safety instructions on the prod-
uct and in this document, as well as the safety guidelines of Wurm GmbH & Co. KG Elektronische
Systeme. Keep these instructions ready to hand for quick reference and pass them on with the device
if the product is sold. Wurm GmbH & Co. KG Elektronische Systeme accepts no liability in the case
of improper use or use for purposes other than the intended purpose.
WARNING DANGER TO LIFE FROM ELECTRIC SHOCK AND/OR FIRE!
• Switch off the power to the entire plant when carrying out installation, wiring or disassembly work!
Otherwise, mains voltage and/or external voltage may still be present, even if the control voltage
is switched off!
• The wiring of the device must be carried out only by qualified electricians!
• Use the correct tools for any work!
• Check the entire wiring after connection!
• Observe the maximum loads for all connections!
• Never expose the device to moisture, for example due to condensation or cleaning agents.
• Stop operating the device if it is faulty or damaged and its safe operation is compromised!
• Do not open the device.
• Do not repair the device yourself! If the device requires repairs, send it in with an exact descrip-
tion of the fault!
CAUTION FAULTS CAN OCCUR IF THERE IS ELECTROMAGNETIC INTERFERENCE!
• Always use shielded data cables and place them far away from power lines.
Version and validity of the documentation
Any software versions not listed are special solutions for individual projects and are not described in detail in this
document. This document will automatically cease to be valid if a new technical description is issued.
Manufacturer: Wurm GmbH & Co. KG Elektronische Systeme, Morsbachtalstraße 30, D-42857 Remscheid
For further information, see our website at www.wurm.de
Target group This manual is intended for "service technician" personnel.
Intended use The CAN-Bridge is used for the electrical isolation of two CAN bus seg-
ments.
Version Date Functional upgrade
V1.1.3 2023-05 Documentation status
For galvanic isolation of 2 bus segments
CAN-Bidge_V1.1.3_PI_2023-05_EN 3
Subject to technical changes
CAN-Bridge
1.5 Installing the device
The device is intended for top-hat rail installation and is suitable for operation in fuse boxes and dis-
tribution cabinets. The device can be positioned immediately adjacent to another device without gaps.
WARNING
DANGER TO LIFE FROM ELECTRIC SHOCK AND/OR FIRE!
• Switch off the power to the entire plant before installing. Otherwise, mains voltage and/or exter-
nal voltage may still be present, even if the control voltage is switched off!
• Observe the maximum loads for all connections!
The entire plant must be free of voltage.
1. (A) Place the device with the leading edge at an acute angle to the top-hat rail.
2. (B) Push the device downwards onto the top-hat rail.
The device snaps into place with the fastening safety catch (a) on the top-hat rail.
You can now connect the device.
Fig. 2: Top-hat rail installation
A
B
For galvanic isolation of 2 bus segments
4 CAN-Bidge_V1.1.3_PI_2023-05_EN
Subject to technical changes
CAN-Bridge
1.6 Connection diagram
Fig. 3: Connection diagram
NOTICE • The assignment of the Wurm CAN bus is different from the CAN bus assignment for plug-in
refrigeration units. Adapter ZCB-ADP/CB-PI is available for connecting plug-in refrigeration units.
More details about the adapter can be found in the related product information.
1.7 Technical data
15 16 17 18 28 29
38 37 3639
21 22 23 24 98 99
3214
0000
00
H
L
0V
S
0V
S
H
L
6
22 L
23 S
24 H
7S2
TR1
TR2
21 0V
Off
On
Off
On
S
L
0V 1
2
3
99
Baud
Rx
Tx
Baud
CAN bus 1
Rx
Tx
Check
baud
98 N
CAN bus 1 230V~CAN bus 2
H
4
L
CAN-Bridge
Analyze
Status
Info 2
Status
Info 1
Auto
Collision
CAN bus 2
CAN bus 1
50
kBd
125
kBd
250
kBd
20
Module no.
kBd
!
S1
CAN-Bus-
Abschluss-
widerstand
integriert
On
Off CAN-Bus 1
CAN-Bus 2
CAN-Bus-
Abschluss-
widerstand
integriert
On
Off
/
Power supply 230V~, +10% / -15%, 50 / 60Hz, 4.5VA
Communication CAN bus 1 3-conductor CAN bus interface, galvanically isolated, screw ter-
minals 2.5mm² /
2 x RJ45 socket and switchable terminating resistor
Communication CAN bus 2 3-conductor CAN bus interface, screw terminals 2.5mm² /
RJ45 socket and switchable terminating resistor
Housing Plastic
Dimensions (WxHxD) 106 x 89 x 56mm (DIN 43880)
Fastening Top-hat rail TH 35-15 or TH 35-7.5 (DIN EN 60715)
Ambient temperature Operation: -20...+55°C, storage: -25...+70°C
Degree of protection IP20
Weight About 364g
CE conformity EU conformity as defined in
- 2014/30/EU (EMC Directive)
- 2014/35/EU (Low Voltage Directive)
RoHS II
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WURM CAN-Bridge Product information

Brand
WURM
Model
CAN-Bridge
Type
Product information

WURM CAN-Bridge

WURM CAN-Bridge is a device used for electrical isolation of two CAN bus segments. It has an integrated 230V power supply and provides active suppression of incomplete telegrams. The device extends the number of possible CAN bus topologies and the total maximum possible CAN bus length. It also features integrated switchable CAN bus terminating resistors and a smart data filter. Different baud rates are possible on both CAN bus segments. Physical CAN bus measurement can be used to detect level errors and wiring errors.

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