IEC 62656-2:2013为IEC 62656-1中规定的数据包提供了应用指南，用于定义域数据字典，域数据字典可从IEC通用数据字典（简称IEC CDD）导入并导出，并作为IEC 61360-4数据库维护。它提供了在软件应用程序中解释和使用IEC 62656-1中定义的技术规范的说明，以避免误用IEC 62656-1中可用的数据结构。

IEC 62656-2:2013 provides an application guide for the data parcels specified in IEC 62656-1 and used for the definition of a domain data dictionary that may be imported from and exported to the IEC common data dictionary, or IEC CDD for short, maintained as the IEC 61360-4 database. It provides instructions for the interpretation and use of the technical specification defined in IEC 62656-1 within a software application, to avoid misuse of the data constructs available in IEC 62656-1.