GB/T 34934-2017 Electrical safety of machinery—Guidelines for the use of communication systems in safety-related applications

Scope

This standard is used to address issues related to serial digital communication systems (commonly known as fieldbuses) used to transmit safety-related data during the design and implementation of the safety functions of mechanical and electrical equipment. It provides guidance for related applications in the process of system design, installation, commissioning, modification, and maintenance. Note: The maximum number of slave stations supported by a serial digital communication system is fixed, and the risk of unauthorized access is negligible. This standard assumes that the SRECS safety requirements specification (SRS) has already been developed, and the design of SRECS includes safety-related communication systems. This standard needs to be used in conjunction with IEC 62061. This standard does not address the design of safety-related communication systems themselves.

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