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Precautions for Safe Use
22
NX-series EtherCAT Coupler Unit User’s Manual (W519)
• If frames sent to EtherCAT slaves are lost due to noise or other causes, slave I/O data is not commu-
nicated, and the intended operation is sometimes not achieved. Perform the following processing if
noise countermeasures are necessary.
Program the
_EC_InDataInvalid
(Input Data Disable) system-defined variable as an interlock condi-
tion in the user program.
Set the
PDO communications consecutive timeout detection count
setting in the EtherCAT master to
at least 2.
Refer to the
NJ-series CPU Unit Built-in EtherCAT Port User’s Manual
(Cat. No. W505) for details.
• When an EtherCAT slave is disconnected, communications will stop and control of the outputs will be
lost not only for the disconnected slave, but for all slaves connected after it. Confirm that the system
will not be adversely affected before you disconnect a slave.
• If you disconnect the cable from an EtherCAT slave to disconnect it from the network, any current
communications frames may be lost. If frames are lost, slave I/O data is not communicated, and the
intended operation is sometimes not achieved. Perform the following processing for a slave that
needs to be replaced.
Program the
_EC_InDataInvalid
(Input Data Disable) system-defined variable as an interlock condi-
tion in the user program.
Set the
PDO communications consecutive timeout detection count
setting in the EtherCAT master to
at least 2.
Refer to the
NJ-series CPU Unit Built-in EtherCAT Port User’s Manual
(Cat. No. W505) for details.
• When you replace a Unit, start operation only after you transfer the settings and variables that are
required for operation to the new Unit.
• Dispose of the product according to local ordinances as they apply.
Unit Replacement
Disposal
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: ......