The parameter MessageReceiveTimeout is the maximum acceptable time between two DataSetMessages. The time starts when the state of the DataSetReader changes to Operational. If there is no new DataSetMessage received within this period, the DataSetReader State shall be changed to Error until the next DataSetMessage is received. The DataSetMessages that reset the period include keep-alive and heartbeat messages. A DataSetMessage is considered new if the sequence number increments or if a new keep-alive message is received. If no sequence number is contained in the DataSetMessage, each received DataSetMessage is considered new.

The MessageReceiveTimeout is related to the Publisher side parameters PublishingInterval, KeepAliveTime and KeyFrameCount.