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Connect CAN devices to any port CAN1 or CAN2 on the monitoring system using a cable supplied. CAN sensors can also be connected to the port of another CAN sensor or CAN unit which is connected to the CAN bus. Determination of the devices and their connection is done through a web interface.
Info You can connect up to a maximum of x12 CAN sensors and CAN devices together on one CAN bus (approximately)!
If you want to connect more than x12 CAN units, you need to use CAN-12V-1A / CAN Power Supply
The TR should be "ON" for the last sensor on each bus "CAN 1" and "CAN 2". See section "TR" below.
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This procedure applies to the following sensors, which are supported by the appliance and are connected to the CAN ports:
CAN sensors, and modules:
- VT408 / Extension unit
- VT430 / Rack control unit
- VT440 / Dry contacts unit
- VT450 / Pressure, humidity, temperature...
- VT460 / Smoke, humidity, temperature...
- VT490 / Humidity and temperature sensor
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| Info |
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Read more about Setting up CAN sensors. |
Used cable and
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limited line length
The maximum length of the CAN line in Vutlan monitoring systems is 225 m due to limitations on the ohmic resistance of cables with RJ12 connectors.
It is advisable to use two or three pairs of cables such as UTP Cat3.5.6 with 24AWG with a copper core. It is possible to use a 4-wire or 6-wire TRONIC or UTP CCA cable, but the maximum CAN line length will be reduced.
TR termination switch
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The last sensor TR switch on a CAN chain must always be terminated, ( switched ON ). Sensors on a CAN bus that is in the middle should have TR switched OFF. |
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Only older Vutlan models have an FR switch. |
pic.1.1: FR is OFF, TR is ON. pic.1.2: FR is OFF, TR is OFF.
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The green LED "CAN status" of the device will light up.
Go to the panel "System Tree" to see the new devices or new sensors. The article numbers for CAN devices are VT4xx. If they do not appear, wait, or refresh.
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Red continuous light, green flickers - no communication with the master module
Red continuous light, green is off - there is a connection with the master unit , but is not included in the monitoring system (not configured)
Red is off, Green continuously light - work as part of a monitoring system
- All LEDs are off: no power or sensor is defective.
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| Model | Description | 50m | 100m | 150m | 200m |
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| VT408 | Sensor extension unit | ok | |||
| VT408DIN | ok | ||||
| VT430 | Rack control unit | ok | |||
| VT440 | Dry contacts unit | ok | |||
| VT460 | Smoke, humidity, temperature | ok | |||
| VT490 / VT490i | Dual humidity and temperature sensor / Pressure, humidity & temperature sensor | ok |
Additional power for long chain
When connecting a very long chain, you need to use CAN-12V-1A / CAN Power Supply module for an additional power for CAN units/extensions/sensors every 8-12 sensors.
see also:
| Child pages (Children Display) |
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