IEC 62056-21 Data Exchange for Electricity Measurement, Meter Reading, Tariff and Load Control, Part 21: Standard Test for Direct Local Data Exchange

EUROLAB laboratory provides testing and compliance service within the scope of IEC 62056-21 standard. Explains the hardware and protocol specifications for local meter data exchange.

In such systems, a handheld unit (HHU) or a unit with equivalent functionality is connected to a tariff device or a group of devices.

The connection may be permanent or disconnectable using optical or electrical coupling. An electrical interface is recommended for use with a permanent connection or when multiple tariff devices need to be read at a site. The optical connector must be easily disconnectable to enable data collection via an HHU.

The protocol allows reading and programming of tariff devices. It is designed to be particularly suitable for the electrical measuring environment, especially in terms of electrical isolation and data security. Although the protocol is well defined, its use and implementation is left to the user.

This standard is based on the reference model for communication in open systems. The optical interface has been enhanced with other elements such as protocol-controlled baud rate switching, data transmission without acknowledgment. The protocol offers several modes for implementation in the tariff device.

EUROLAB assists manufacturers with IEC 62056-21 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.