Inserting a Scope View This will check the trigger condition again after the end of the plot has been reached. If the condition is satisfied, the old plot is cleared and a new one is recorded. Starting on trigger event (default) The recording starts on the triggered event Stopping on trigger event Since TwinCAT V2.9 Build 1031 On the triggered event the Scope switches into offline mode after a configurable interval is passed. Use the 'Pretrigger' cpntrol to adjust the interval. This function requires operating the scope in 'ring-buffer-mode' [ } 12] Combining trigger conditions It is possible to set trigger conditions to the right of the trigger list.
All the elements in the trigger list can be combined with either a logical ”AND" or with a logical ”OR". If these conditions are not enough it is possible to program a trigger condition in, for example, the PLC task. The result of this condition can be assigned to a PLC variable. That allows TCatScopeView also to access the variable. It can now be added to the Scope View as the ”trigger channel". Manual Trigger It can also happen that the recording is to be started manually. In order to avoid the need to remove all the channels from the trigger list, a manual trigger is provided. If this is activated, recording starts.
Editing the Trigger Channels If it is necessary to change the triggering properties of a channel at a later time, the appropriate channel must be selected within the trigger list. Using the right mouse button the context menu shown on top here can be opened. By selecting the 'Edit..' menu item, the "Edit Trigger" dialog is opened. Cursor See also " Analysis of a Scope View - Cursors [ } 19] " Scope View 14 Version: 1.1