System-Defined Variables That Are Related To The Built-In Ethercat Port; What Are System-Defined Variables; System-Defined Variables - Omron Sysmac NJ Series User Manual

7 System-defined Variables Related to the Built-in EtherCAT Port
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.
User programming
7-1-2

System-defined Variables

 Functional Classification: EtherCAT Communications Errors
Variable name
_EC_ErrSta Built-in EtherCAT Er-
ror
_EC_PortErr Communications Port
Error
7-2
NJ/NX-series CPU Unit
Reading
System-defined variables
Writing
EtherCAT master
Slave
Meaning
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.
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.
EtherCAT
Slave
Function Data type
WORD
WORD
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
Range of
Reference
values
16#0000 to page 7-10
16#40F0
16#0000 to page 7-10
16#00F0