This invention generally relates to data management in a data processing and communication station that acts as an interface station between a central or control terminal and a subsystem. The interface station is adapted to receive messages from and to transmit messages to a control station as well as...http://www.google.com.au/patents/US5544329?utm_source=gb-gplus-sharePatent US5544329 - Interface system with memory map locations for holding flags indicating a priority for executing instructions held within messages received by the interface
