Parallel Virtual Machine (PVM) ready for distributed real-time control systems ? Case study for industrial usage

摘要

For distributed control systems is often used Industrial Ethernet, but the standardization of the upper layer protocols is still an open issue. The use of PVM is an interesting approach to build a standard at application layer. With PVM it's also possible to integrate to a realtime environment additional existing programming standards like EC 61131-3 as well as other requested features from the control industry. PVM is a quasi standard for parallel computing systems and it has a big and still growing installed base and is used at many sites, but it's not common to use it in distributed real-time control systems today. Our first trial with PVM in a distributed real-time control systems looks very promising.