In 2009, IEC 61346-1 was merged into . The changes are subtle but critical:
Understanding IEC 61346-1: The Foundation of Industrial Structuring iec 61346-1 pdf
By separating aspects, the standard allows electrical engineers, mechanical engineers, and software coders to use different reference designations for the same physical object while maintaining traceability. In 2009, IEC 61346-1 was merged into