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Preface
■ About This Guide
GL20‑RTU‑ECT series EtherCAT communication interface module This product
features support for EtherCAT communication and auto scanning function and is
applicable to Inovance and third‑party EtherCAT master such as PLC and boards. One
EtherCAT communication interface module can connect up to 16 GL20 I/O modules.
When the number of connected I/O modules exceeds 16, an expansion power supply
module is required (one power supply module for every additional 16 I/O modules).
This guide describes the mechanical installation, electrical installation and
programming examples of the product.
■ Revision History
Date Version Description
June 2022 A01 Minor corrections
April 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.
● Scan the QR code on the product with your mobile phone.
■ Warranty Agreement
The warranty period of the product is 18 months as of the date of manufacture (refer
to the barcode on the equipment). If otherwise agreed upon, the agreed terms and
conditions shall prevail. After 18 months, a proper maintenance fee is charged.
Within the 18‑month warranty period, a reasonable repair fee will be charged for
damages caused by the following:
● Operations not following the user instructions
● Fire, flood, or abnormal voltage
● Use of the product for non‑recommended functions
● Use of the product outside the scope of intended use
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