User´s Manual - I+ME ACTIA GmbH

Triggering
CAT allows defining a Trigger Event based on Frame Identifier and Data. This Trigger is used to set a
mark into the logged buffer and to stop the logging of data. Therefore it can be defined by Pre/ Post
Trigger how many frames shall be stored before and after the trigger event occurs.
The feature Time Out Trigger allows to trigger on the lacking of a frame. To use a frame of the database
there is an easy access button to the frame list. (See Trigger and Trigger on existing Frames for more
details.)
Triggering is enabled and the trigger conditions are defined in Offline mode. If the trigger is enabled the
Trigger is activated by the data on the bus or the Trigger Event can be activated manually (CTRL +T).
Note: The defined filter conditions may cover the defined Trigger conditions so that no Trigger
Frame could pass the filter. In this case you will be warned going online even if you did not activate the
filter.
Trigger Event by Data on the bus
Depending on the defined Trigger conditions a Trigger Event occurs:
Without
Time Out Trigger: When the defined Frame and Data are received
With
Time Out Trigger: When the defined Frame and Data are received once and then are not received again periodically
in the defined maximal periodic time. The missing of this Frame and Data for exactly this defined time is the trigger
event.
Note: The Trigger Event can be activated also by the data you are transmitting to the bus by CAT.
Transmitted Frames will not be filtered.
When the Trigger event occurs the Trigger sign in the Status Bar switches to red.
Trigger Event by manual input
Choose menu item Commands | Trigger or press the hot key combination CTRL + T to enforce a
Trigger Event even if the Trigger is not enabled.
Note: When the Trigger event occurs the Trigger sign in the Status Bar switches to red.
Stopping the Online Mode
Depending on the defined Trigger conditions (Pre/Post Trigger) the Online mode stops immediately
when the Trigger Event occurs. CAT switches to the Offline Mode and a message box informs the user
that Trigger stops the Online Mode. After acknowledge of this message the Upload of the buffer content
starts automatically.
If Pre/Post Trigger is defined CAT stays in the Online Mode logging as long data as the amount of
frames is reached filling up the defined post trigger buffer size. Then the Online mode stops and CAT
switches to the Offline Mode and a message box informs the user that Trigger stops the Online Mode.
After acknowledge of this message the Upload of the buffer content starts automatically.
For more details about the Trigger conditions and defining them see also Trigger Definition .
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