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Introduction
CJ-series EtherCAT Slave Units Operation Manual (W541)
Introduction
Thank you for purchasing a CJ-series CJ1W-ECT21 EtherCAT Slave Unit.
This manual contains information that is necessary to use the CJ-series CJ1W-ECT21 EtherCAT Slave
Unit for a CJ-series CPU Unit. Please read this manual and make sure you understand the functionality
and performance of the CJ-series CPU Unit before you attempt to use it in a control system.
Keep this manual in a safe place where it will be available for reference during operation.
This manual is intended for the following personnel, who must also have knowledge of electrical sys-
tems (an electrical engineer or the equivalent).
• Personnel in charge of introducing FA systems.
• Personnel in charge of designing FA systems.
• Personnel in charge of installing and maintaining FA systems.
• Personnel in charge of managing FA systems and facilities.
For programming, this manual is intended for personnel who understand the programming language
specifications in international standard IEC 61131-3 or Japanese standard JIS B 3503.
This manual covers the following product.
• CJ-series EtherCAT Slave Unit
CJ1W-ECT21
Intended Audience
Applicable Products
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