Modbus EDS Made Simple

The New ASERCOM Standard

Standardise the communication between Modbus server and client with the new Electronic Data Sheet (EDS) – created by experts, for professionals.

Who Will Benefit?

This document is designed for developers, system integrators, OEMs and operators working in refrigeration, HVAC and automation systems. Whether integrating existing Modbus devices or preparing new products for smart environments – this EDS format provides a solid foundation.

Why You Should Know
the ASERCOM EDS Specification

  • Easy Integration
    Automatically read and configure Modbus devices via standardised JSON structures.

  • Reduced Engineering Effort
    Minimise manual documentation and custom interfaces.

  • Future-Proof & Backward Compatible
    Suitable even for existing devices – no firmware changes needed.

What’s Inside the Document

  • Detailed JSON Structure and Sections
    The specification outlines how to build a complete EDS in JSON format, including FileInformation, DeviceInformation, ObjectDictionary and ObjectSequences.

  • Standardised Tags and Data Types
    Includes definitions for all tags, data formats, access types and units following CANopen-style conventions.

  • Practical Examples
    Realistic example of a Modbus server EDS is included for easy adaptation.

  • Compatible with Existing Devices
    EDS files can be supplied externally, embedded, or centrally hosted – no firmware change needed.

Developed by Experts – Backed by ASERCOM

This specification was developed by the ASERCOM Working Group in collaboration with leading European manufacturers. It is based on recognised industry standards and supports migration from CAN to Modbus.