In many situations, it is necessary to insert an additional digital output into existing systems based on the CAN bus. These include, for example, cases of closed systems in vehicles where a digital output needs to be switched based on input data from the CAN bus. Examples may include various vehicle extensions and enhancements, or additional signaling in industrial automation and similar applications. A very simple example might be intelligent switching of additional lights on a vehicle.
The CAN relay represents a very simple device, programmable by the user, in a compact design intended for sockets used for standard relays.
The user is able to easily configure the input signal using the CAN bus, based on which the digital output is switched. It is also possible to combine several values or ranges of different quantities and so on.
Basic features of the CAN relay:
- 9-32V power supply
- digital output with 10A load capacity switches the supply voltage
- designed for insertion into a socket of a 5-pole automotive relay
- CAN 2.0 and CAN FD communication interface, arbitration phase speed 125kbit - 1Mbit
- digital output can be in PWM mode and controlled by a signal on the CAN bus
- PWM frequency 10, 20, 50, 100, 200, 500 and 1000Hz, 16-bit resolution
- output with short-circuit protection and thermal protection
- measurement of supply voltage with 12-bit resolution
- measurement of load current
- measurement of voltage at the digital output (instead of digital output mode, it can be used, for example, as an analog input)
- measurement of internal temperature and setting user shutdown of the output when temperature is exceeded
- automatic shutdown when load current is exceeded
- switching based on evaluation of up to 4 quantities read from the CAN bus
- possibility of firmware update, for example to customer firmware
- configuration via CAN bus
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