![background image](http://html1.mh-extra.com/html/omron/nx-ecc201/nx-ecc201_user-manual_742778222.webp)
10 I/O Refreshing
10 - 8
NX-series EtherCAT Coupler Unit User’s Manual (W519)
Additional Information
The EtherCAT Slave Terminals with enabled distributed clocks and all EtherCAT slaves that
support DC synchronization execute I/O processing based on Sync0, which is shared on the
EtherCAT network. Because EtherCAT Slave Terminals and EtherCAT slaves have different
specifications and performance levels for the timing of reading inputs and updating outputs, the
timing of reading inputs and updating outputs are not the same for them.
With Free-Run refreshing, the refresh cycle of the NX bus and the I/O refresh cycle of the NX Units
operate asynchronously.
NX Unit #4 in EtherCAT Slave Terminal #3 in the figure labeled
Example of I/O Refreshing Method
on page 10-9 provides an example of operation with Free-Run refreshing.
The NX Units perform I/O processing based on their own unique timings ((C) and (D) in the figure),
independent of Sync0.
Operation of Free-Run Refreshing
Summary of Contents for NX-ECC201
Page 38: ...Sections in this Manual 36 NX series EtherCAT Coupler Unit User s Manual W519...
Page 46: ...1 EtherCAT Networks 1 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 56: ...2 Features and System Configuration 2 10 NX series EtherCAT Coupler Unit User s Manual W519...
Page 82: ...4 Part Names and Functions 4 14 NX series EtherCAT Coupler Unit User s Manual W519...
Page 100: ...5 Designing the Power Supply System 5 18 NX series EtherCAT Coupler Unit User s Manual W519...
Page 214: ...9 Setting Up Slave Terminals 9 44 NX series EtherCAT Coupler Unit User s Manual W519...
Page 254: ...11 EtherCAT Coupler Unit Functions 11 30 NX series EtherCAT Coupler Unit User s Manual W519...
Page 278: ...12 Communications Performance 12 24 NX series EtherCAT Coupler Unit User s Manual W519...
Page 340: ...14 Maintenance and Inspection 14 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 400: ...Appendices A 60 NX series EtherCAT Coupler Unit User s Manual W519...
Page 401: ...Index 1 NX series EtherCAT Coupler Unit User s Manual W519 I Index...
Page 405: ......