Siemens Simatic S7-300 Technical Data Manual page 230

Glossary
Process interrupt
A process interrupt is triggered by interrupt-triggering modules as a result of a specific event
in the process. The process interrupt is reported to the CPU. The assigned organization
block will be processed according to interrupt priority.
Process-Related Function
See PROFINET Component
Product version
The product version identifies differences between products which have the same order
number. The product version is incremented when forward-compatible functions are
enhanced, after production-related modifications (use of new parts/components) and for bug
fixes.
PROFIBUS
Process Field Bus - European fieldbus standard.
See PROFIBUS DP
See PROFIBUS International
PROFIBUS Device
A PROFIBUS node has at least one or more PROFIBUS ports.
A PROFIBUS device cannot take part directly in PROFINET communication but must be
included over a PROFIBUS master with a PROFINET port or an Industrial
Ethernet/PROFIBUS link (IE/PB Link) with proxy functionality.
See Device
PROFIBUS DP
A PROFIBUS with the DP protocol that complies with EN 500170. DP stands for distributed
peripheral I/O (fast, real-time, cyclic data exchange). From the perspective of the user
program, the distributed I/O is addressed in exactly the same way as the central I/O.
See PROFIBUS
See PROFIBUS International
PROFIBUS International
Technical committee that defines and further develops the PROFIBUS and PROFINET
standard.
Also known as the PROFIBUS User Organization (PNO).
Home page www.profibus.com
Glossary-14
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05