ESTA E1.37-5 PDF

Overview & Scope

This document provides additional Get/Set parameter messages for use with the E1.20 Remote Device Management (RDM) protocol. Two areas are covered:

• General Parameters for use with any type of device (Section 4)

• An enhanced version of PARAMETER_DESCRIPTION ([RDM], Section 10.4.2), known as the Parameter Metadata Language (Section 5)

Parameter Descriptors Scope

To make comprehensive use of manufacturer-specific Parameter Messages, [RDM] Controllers need a way to interrogate an RDM Responder to understand the structure of Parameter Data for supported manufacturer-specific Parameter Messages. Without such a method, Controllers must maintain a Parameter Message ID library, which suffers from problems such as missing Parameter Messages and out-of-date definitions.

The Parameter Metadata Language defined in Section 5 is the preferred implementation in new designs for information previously provided by the PARAMETER_DESCRIPTION message from [RDM] in Responders.

To simplify implementations, this standard does not attempt to describe all possible Manufacturer-Specific RDM messages.

This method is only allowed for use with Manufacturer-Specific Parameter Messages, but care has been taken to ensure that the vast majority of publicly-defined RDM Parameter Messages can be described using the Parameter Metadata Language. This may be useful for other purposes (e.g.: internal representations of data structures in a Controller).