Resumen:
IEC 61158-3-19:2014 defines the services provided to the Type 19 fieldbus application layer at the boundary between the application and data-link layers of the fieldbus reference model and systems management at the boundary between the data-link layer and systems management of the fieldbus reference model. This third edition cancels and replaces the second edition published in 2010. It constitutes a technical revision. The main changes are:
- introducing connections based on a producer-consumer model;
- introducing additional mechanisms to realize features such as timestamping and oversampling;
- improving the hotplug and redundancy features;
- improving the phase switching and the error handling;
- editorial improvements.
Keywords:
Open systems interconnection, Data link layer (OSI), Communication networks, Interfaces (data processing), Bus networks, Data transmission, Communication procedures, Automatic control systems, Process control, Fieldbus, Industrial, Computer networks