Omron NJ101-10 Series, User Manual

Page: 174 / 280

7-1 System-defined Variables That Are
Related to the Built-in EtherCAT Port
7-1-1 What Are System-defined Variables?
System-defined variables are variables that are defined by the system for use with EtherCAT commu-
nications. These are provided in advance in the global variable table.
The user program can input status and set parameters for the EtherCAT master and slaves by reading
and writing system-defined variables.
System-defined variables
EtherCAT
Reading
NJ/NX-series CPU Unit
EtherCAT master
Writing
User programming
Slave Slave
7-1-2 System-defined Variables

Functional Classification: EtherCAT Communications Errors
Variable name Meaning Function Data type
Range of
values
Reference
_EC_ErrSta Built-in EtherCAT Er-
ror This system-defined variable provides
the collective status of errors in the
EtherCAT Master Function Module.
Refer to information on the meanings of
the error status bits at the end of this ap-
pendix for details. WORD 16#0000 to
16#40F0 page 7-10
_EC_PortErr Communications Port
Error This system-defined variable provides
the collective status of errors in the com-
munications ports for the EtherCAT mas-
ter.
Refer to information on the meanings of
the error status bits at the end of this ap-
pendix for details. WORD 16#0000 to
16#00F0 page 7-10
7 System-defined Variables Related to the Built-in EtherCAT Port
7-2
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)