ISO/IEC 14543的这一部分规定了一种应用层协议，该协议对于确保不同制造商的产品之间关于电存储系统和控制器之间通信的互操作性很重要。它使用ISO/IEC 14543-4-3中规定的网络增强通信设备（NECD）协议。此协议基于UDP，使用IPv4或IPv6（TCP是可选的）。

This part of ISO/IEC 14543 specifies an application-layer protocol important for ensuring interoperability among the products of various manufacturers regarding communications between electrical storage systems and controllers. It uses the network enhanced communications device (NECD) protocol specified in ISO/IEC 14543-4-3. This protocol is based on UDP using IPv4 or IPv6 (TCP is optional).