Setting this object to a value of 'true' instructs the CMTS to insert a Trigger Message Block in the PLC with a Group ID matching the CM's TriggerGroupID. The CMTS captures the Symbol that it designated in the Trigger Message Block. The TriggerEnable is a one-shot enable and the attribute is disabled when the CMTS has completed the acquisition of the designated Symbol. Interaction with other table rows: - This object returns 'inconsistentValue' if set to 'true' while the value of 'docsPnmCmtsDsOfdmSymTrigMeasStatus' is a value of 'busy' for this row OR for any row in the table. That is, ONLY ONE ROW IN THE TABLE MAY BE ALLOWED TO BE 'true' AT THE SAME TIME. - Default values for 'docsPnmCmtsDsOfdmSymCaptFileName', and 'docsPnmCmtsDsOfdmSymTrigGroupId' objects are defined; thus, this object may be set to 'true' without explicitly setting these values. Care should be taken to insure these values are correct for the desired test case. - Setting this object to a value of 'true' will change the value of the 'docsPnmCmtsDsOfdmSymTrigMeasStatus' to 'busy'.