3 System-defined Variables Related to the Built-in EtherNet/IP Port
3-20
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Functional Classification: EtherNet/IP Communications Status
You can check the status of the built-in EtherNet/IP port (e.g., communications status).
Variable name Meaning Function Data type
Range of
values
Reference
_EIP_EtnOnlineSta Online NX-series CPU Units: Indicates that the
built-in EtherNet/IP port’s communications
can be used via the communications port
1 (that is, the link is ON, IP address is
defined, and there are no errors).
TRUE: The built-in EtherNet/IP port’s
communications can be used.
FALSE: The built-in EtherNet/IP port’s
communications is disabled due
to an error in initial processing,
restart processing, or link OFF
status.
NJ-series CPU Units: Indicates that the
built-in EtherNet/IP port’s communications
can be used via the communications port
(that is, the link is ON, IP address is
defined, and there are no errors).
TRUE: The built-in EtherNet/IP port’s
communications can be used.
FALSE: The built-in EtherNet/IP port’s
communications is disabled due
to an error in initial processing,
restart processing, or link OFF
status.
BOOL TRUE or
FALSE
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_EIP1_EtnOnlineSta Port1 Online Indicates that the built-in EtherNet/IP
port’s communications can be used via
the communications port 1 (that is, the link
is ON, IP address is defined, and there
are no errors).
TRUE: The built-in EtherNet/IP port’s
communications can be used.
FALSE: The built-in EtherNet/IP port’s
communications is disabled due
to an error in initial processing,
restart processing, or link OFF
status.
Note You can use this system-defined vari-
able only for NX-series CPU Units.
BOOL TRUE or
FALSE
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_EIP2_EtnOnlineSta Port2 Online Indicates that the built-in EtherNet/IP
port’s communications can be used via
the communications port 2 (that is, the link
is ON, IP address is defined, and there
are no errors).
TRUE: The built-in EtherNet/IP port’s
communications can be used.
FALSE: The built-in EtherNet/IP port’s
communications is disabled due
to an error in initial processing,
restart processing, or link OFF
status.
Note You can use this system-defined vari-
able only for the NX701 CPU Units.
BOOL TRUE or
FALSE
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