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15 Signal module

Insert the Signal module into your canAnalyser configuration and start it. First load the database on which the interpretation is to be based. Open the Bus Properties index card of the Controller Properties dialog and click on the symbol. In the file open dialog, select the downloaded file "SampleDB.xml" or your own created project database.

The program window of the Signal module is divided in two: In the top half the received messages are displayed either in the Scroll or Overwrite mode. The bottom half shows the structure of the database on which the interpretation is based. Only signals whose checkbox is activated are also displayed in the Scroll-view.

After loading the database, its structure should now be visible here. Start the Signal module either

by selecting the menu point Functions | Start or
by clicking on the button in the toolbar.

A command sequence is also already prepared for the demonstration of the Signal module. Open the file "Signal.prf" in the Sequencer module, start the processing of the script and switch to the program window of the Signal module.


As in the Receive module, the signals contained in a CAN-message can be displayed with the Signal module either in the scroll mode or in the overwrite mode. In the scroll mode, the data contained in a received CAN-message are displayed in a list in sequence according to their time of receipt. In the overwrite mode, on the other hand, the data are displayed sorted according to certain characteristics and continually overwritten with the current arriving values. In both modes the Signal module displays the message objects, multiplexer and signals of the database used and the current arriving values.

In the overwirte mode the messages to be displayed have to be selceted first. By double clicking on a signal from the bottom of the window or by selecting a signal and selecting the symbol from the toolbar the signal is added to the overwrite view.


In the overwrite mode it is possible to highlight changes of signal values. It can be activated or deactivated by selecting the menu item Options | Value change detection. If the value of a signal changes, its background is shown in the color, selected in Options | Change detection color.... The reference value for the value change detection is the value of the first reception of a message or the value of the last reset. To reset the value change detection select the menu item Functions | Reset change detection or use the context menu.

If in the database a cycletime is defined for a message, it can be controlled in the overwrite mode of the signal module. It is activated or deactivated by selecting the menu item Options | Timeout detection. The timeout detection can be set back by selecting the menu item Function | Reset timeout detectin or over the context menu. A timout is indicated by the symbol in the State column.