An object is anything that can be treated individually. A pump, a valve, a circuit breaker, or an entire production line can all be considered objects.
A1 represents a specific functional group (e.g., a control system loop). - shifts the view to a product-oriented aspect.
IEC 61346-1 explicitly forbids "flat lists." It demands a . iec 61346-1 pdf
The standard recognizes that a single physical object has multiple "aspects" (views). For example, a motor:
You train it on a hierarchy. You train it on objects with clear functions, locations, and identities. An object is anything that can be treated individually
As systems grow, the hierarchical structure of the standard keeps the documentation from becoming a mess.
Field technicians and maintenance engineers working with legacy wiring diagrams must understand the single-letter codes and aspect combinations defined in the original standard to safely troubleshoot systems. - shifts the view to a product-oriented aspect
, you’re likely looking for the "rulebook" on how to designate and classify technical objects.
Software developers designing PLM (Product Lifecycle Management) and ERP systems need the exact syntax rules to build accurate data models.
IEC 61346-1 defined specific single-letter codes to classify objects based on their intended purpose. While these were expanded in the newer IEC 81346-2 standard, the basic classes remain highly recognizable in the field:
Millions of industrial plants built between the late 1990s and late 2000s utilize blueprints designed strictly under IEC 61346-1. Maintenance teams need the PDF to accurately decode old electrical schematics. Important Historical Context: IEC 61346 vs. IEC 81346