2010•Machine Tool Electric ApparatusRequires access

Design of software for the reliability of PLC control system

Zhao Zhong-min

Abstract

The reliability design is widely used by PLC manufacturers when produces PLC product,but if you don't apply the necessary artifice to the application design and installation,the system may be occur fault,although the hardware is the key of reliability of PLC control system,but the software(programs) is also very importance.In this article,the method of improving PLC control system reliability by the software design was discussed which aim at the input and output process,the reliability of PLC communication process and PLC fault handling etc.

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Available abstract

Key concepts: Reliability (semiconductor), Reliability engineering, Simatic S5 PLC, Software, Process (computing), Key (lock), Fault (geology), Software design