‑1‑
Preface
Preface
About This Guide
The MD500 series communication expansion cards (hereinafter MD500‑EM1 card)
conform to Modbus‑TCP protocol and feature high efficiency, flexible topology, and
easy operation.
This document gives a detailed description of the MD500‑EM1 card, including its
specifications, dimensions, installation, wiring, communication protocol,
communication parameters, and communication instances.
Revision History
Date
Version
Description
March 2022
A00
First release
How to Obtain
This guide is not delivered with the product. You can obtain the PDF version by the
following method:
Log in to Inovance's website (
http://en.inovance.cn/
), choose Support > Download,
search by keyword, and then download the PDF file.
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