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GX-series EtherCAT Slave Unit User’s Manual
Structure of This Manual
This manual consists of the following chapters.
Chapters Contents
Chapter 1 EtherCAT Network Explains about the EtherCAT features and the network 
configuration.
Chapter 2 EtherCAT Slave Unit Overviews the GX-series EtherCAT Slave Unit and its 
various types. 
Chapter 3 Basic Usage Procedures Explains the setup method and usage procedures by using 
simple system setup examples.
Chapter 4 Installation and Wiring Explains how to install Slave Units, and how to connect and 
wire the EtherCAT network and power supply.
Chapter 5 EtherCAT Communications Explains the details of EtherCAT communications.
Chapter 6 Basic Specifications of Slave Units Explains the common specifications for all Slave Units.
Chapter 7 Digital I/O Slave Unit Gives an overview about the Digital I/O Slave Unit and 
explains names and functions of components consisting 
the Slave Unit. It also contains internal circuit diagrams, 
wiring diagrams and mounting dimensions.
Chapter 8 Analog I/O Slave Unit Gives an overview about the Analog I/O Slave Unit and 
explains names and functions of components consisting 
the Slave Unit. It also contains internal circuit diagrams, 
wiring diagrams and mounting dimensions.
Chapter 9 Encoder Input Slave Unit Gives an overview about the Encoder Input Slave Unit and 
explains names and functions of components consisting 
the Slave Unit. It also contains internal circuit diagrams, 
wiring diagrams and mounting dimensions.
Chapter 10 IO-Link Master Unit Gives an overview of the IO-Link Master Unit and explains 
the names and functions of the components of the IO-Link 
Master Unit. It also contains wiring diagrams, and mounting 
dimensions.
Chapter 11 Expansion Unit Gives an overview about the Expansion Unit and explains 
names and functions of components consisting the Expan-
sion Unit. It also contains wiring diagrams and mounting 
dimensions.
Chapter 12 Troubleshooting and Maintenance This contains troubleshooting and inspection methods 
intended for individuals to handle abnormalities and con-
duct regular inspections.
Appendix Appendix Contains the object overview and explains the precautions.