
5-3 Connecting the Power Supplies .........................................................................................5-10
5-3-1 Installation Precautions .............................................................................................................5-10
5-3-2 Preparing for Wiring ..................................................................................................................5-10
5-3-3 Connecting Power Supply Cables to External Power Supplies ................................................5-11
5-3-4 Connecting Power Supply Cables.............................................................................................5-12
5-4 Connecting I/O Cables.........................................................................................................5-18
5-4-1 Installation Precautions .............................................................................................................5-18
5-4-2 Preparing for Wiring ..................................................................................................................5-18
5-4-3 Connecting I/O Cables ..............................................................................................................5-18
5-4-4 Wiring Examples .......................................................................................................................5-22
5-4-5 Precautions When Wiring External Output Signal Lines ...........................................................5-29
5-5 Connected Devices..............................................................................................................5-31
5-5-1 EtherCAT Cables.......................................................................................................................5-31
5-5-2 Power Supply Cables................................................................................................................5-33
5-5-3 I/O Cables .................................................................................................................................5-33
5-5-4 Waterproof Covers for Connectors............................................................................................5-35
Section 6 EtherCAT and IO-Link Communications
6-1 EtherCAT Communications ..................................................................................................6-2
6-1-1 Structure of CAN Application Protocol over EtherCAT (CoE) .....................................................6-2
6-1-2 EtherCAT Slave Information Files (ESI Files) .............................................................................6-3
6-1-3 Transitions of Communications States........................................................................................6-3
6-1-4 Process Data Objects (PDOs) ....................................................................................................6-4
6-1-5 Service Data Objects (SDOs) .....................................................................................................6-7
6-1-6 Communications Mode ...............................................................................................................6-8
6-2 IO-Link Communications ......................................................................................................6-9
6-2-1 Cyclic Communications for IO-Link Communications .................................................................6-9
6-2-2 Message Communications for IO-Link Communications ..........................................................6-12
Section 7 Setting Up IO-Link Master Unit
7-1 Setting Items and Setting Procedures .................................................................................7-2
7-1-1 Setting Items ...............................................................................................................................7-2
7-1-2 Setting Procedures......................................................................................................................7-3
7-2 Setting Device Parameters....................................................................................................7-4
7-2-1 List of Settings.............................................................................................................................7-4
7-2-2 Setting the Device Parameters of the IO-Link Master Unit .........................................................7-5
7-3 Setting PDO Mappings ..........................................................................................................7-6
7-3-1 Methods for Setting PDO Mappings............................................................................................7-6
7-3-2 PDO Mapping Objects and PDO Entries That Can Be Allocated ...............................................7-7
7-3-3 Details of PDO Entries ................................................................................................................7-9
7-4 Configuring the Setting Parameters ..................................................................................7-21
7-5 Backing Up and Restoring Device Parameters.................................................................7-22
Section 8 I/O Refreshing
8-1 Introduction to I/O Refreshing ..............................................................................................8-2
8-2 Communications Performance.............................................................................................8-4
8-2-1 I/O Response Time for IO-Link Devices......................................................................................8-4
8-2-2 I/O Response Time for Non-IO-Link Connected External Devices .............................................8-6
CONTENTS
8NXR-series IO-Link Master Unit for EtherCAT User’s Manual (W640)