Description

The CAN interface is used to acquire data from a CAN bus as a data source. It was developed as a successor of the ibaBM-CAN device, which reached its end of life.

The connection between CAN bus and ibaPDA is established via a CAN-Ethernet gateway. On the ibaPDA side, simply the Ethernet network interface is required.

ibaPDA supports the following CAN-Ethernet gateways:

  • CAN-Ethernet Gateway (2-channel) from iba (art. no. 19.000040)

  • EtherCAN CI-ARM9/ MD-IBAGateway, Manufacturer: EMS Thomas Wuensche (art. no. 12-20-383-20)

    Ethernet/CAN interface with 32-bit microcontroller (ARM9 core) and two internal CAN controllers, preconfigured for iba AG

The device has two CAN bus connectors, which allow to communicate with two CAN bus networks on this device. The interface license permits up to two connections.

For a more convenient configuration of the measurement data, the interface provides an automatic detection of active CAN bus devices.
Interface configuration

This interface is only available in the Inputs tab of the I/O Manager, because outputs are not supported.

The interface has the following functions and configuration options:

Set all values to zero when the connection to a device is lost

If enabled, all measured values of the CAN device are set to zero as soon as the connection is lost. If this option is disabled, ibaPDA will keep the last valid measured value at the time the connection was lost in the memory.

Start the acquisition even if a device is not accessible

If this option is enabled, the acquisition will start even if the CAN device is not accessible. Instead of an error, a warning is prompted in the validation dialog. If the system has been started without a connection to the device, ibaPDA will try to connect to the device at regular intervals.

<Open log file>

Messages related to the interface are written in a separate log file. To open the current log file click <Open log file>.

<Reset statistics>

Click this button to reset the calculated times and error counters in the table to 0.

Connection table

The table shows the configured connections to the gateways. One row corresponds to one connection. For each connection there is one CAN module created in the I/O configuration.

The columns of the table provide information as follows:

  • Name of the corresponding CAN module

  • IP address or host name of the gateway

  • Error counter for failed connection attempts and error messages from the CAN bus

  • Counter for messages received

  • Counter, which shows for how many different CAN IDs messages have been received.

The configuration of the connection has to be done in the settings of the CAN module.
Available modules

  • CAN
Product name

ibaPDA-Interface-CAN (art.-no. 31.001027)