CANalarm – permanent diagnostics tool for CAN bus
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- CAN diagnostics tools
- CANalarm – permanent diagnostics tool for CAN bus
CANalarm – permanent diagnostics tool for CAN bus
The CANalarm is a CANbus analyser that you connect to the network via plug & play. It automatically detects the baud rate and provides an overview of your network's health. Its 9-pin connector allows you to easily connect it to an existing network. The analyser provides information about:
- Bus traffic load
- Number of error frames
- ID and content of transmitted telegrams
Diagnostics results are available on the device's display. As soon as at least one of the trigger criteria is met, you're alerted through the analyser's status LEDs. The criteria can be set to meet your requirements.
The configuration is done with a small tool on the PC. The CANalarm can stay within the bus for this. As an option, you can do basic settings with the two buttons and the display.
The alarm output can be configurated at switching condition, duration and polarity. The following screenshot from the PC software gives an idea about that.
Without any other licenses, the CANalarm monitors bus traffic load and error frames. If the bus traffic load passes a limit determined, the alarm output will be switched on. The amount of error frames and their rate/s is also monitored. For this data, you can also free determine an alarm limit.
The analyser also comes with these optional licences:
- Licence for failure monitoring of up to 32 nodes (order number SW-22565-10)
- Licence for analysing CAN messages (order number SW-22565-11) – enables you to analyse the CAN-IDs of all telegrams transmitted on the bus and get detailed information about detected problems
Up to 32 nodes can be monitored by one CANalarm. The CAN telegrams of each node are recognized. If a certain node doesn’t send another telegram within a to be determined time, the alarm output switches respectively to his configuration.
Do you need a monitor for more than 32 nodes? Just take another CANalarm.
The message Trigger gives the alarm as it receives a certain telegram. You can switch each and every bit in a mask relevant or irrelevant, therefore the properties can be exactly defined. This function opens wide possibilities, but it requires a good knowledge of the certain telegrams on your bus.
Electrical parameters | |
Supply voltage | + 9 … 32 VDC |
Supply current | 16 mA @ 24 V |
Mechanical parameters | |
Temperature range | 0 °C bis 50 °C |
Degree of protection of the housing | IP20 |
CAN | |
Protocol | CAN 2.0 A and B according to ISO 11898 – 2 |
Supported baud rates | 10k, 20k, 50k, 100k, 125k, 250k, 500k, 800k, 1 MBit/s Automatic detection Additionally user-defined: 33.3, 62.5, 83.3, 200, 400 kBit/s |
Connections | CAN 9‑pin D‑Sub potential-free switch (60 V/1.25 A AC/DC) |
Highlighted items are mandatory.