Determines when signals and events are cleared. 0 = only an empty R: clears the event list and only an empty S: clears and stops the current signals list. Signals and events will be cleared only when new signals/events are requested or an empty signals/events request is mentioned in the command. 1 = if an encapsulated Request identifier (X:) is present in the command, all TO signals and all events are cleared. 2 = same as value 1 , in addition If receive DLCX then all signals are cleared (even if no (X:) is present in the command). Access: Instant. AC INI-Param: ClearRequestBuffer