3-15
3 System-defined Variables Related to the Built-in EtherNet/IP Port
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
3-2 System-defined Variables
3
_EIP_TagAdrErr Tag Name Resolution
Error
NX-series CPU Units: Indicates that tag
resolution for CIP communications 1 failed
(i.e., the address could not be identified
from the tag name).
TRUE: Tag resolution failed (i.e., the
address could not be identified
from the tag name). The follow-
ing causes are possible.
• The size of the network vari-
able is different from the tag
settings.
• The I/O direction that is set in
the tag data link settings does
not agree with the I/O direc-
tion of the variable in the CPU
Unit.
• There is no network variable
in the CPU Unit that corre-
sponds to the tag setting.
FALSE: Other than the above.
NJ-series CPU Units: Indicates that tag
resolution failed (i.e., the address could
not be identified from the tag name).
TRUE: Tag resolution failed (i.e., the
address could not be identified
from the tag name). The follow-
ing causes are possible.
• The size of the network vari-
able is different from the tag
settings.
• The I/O direction that is set in
the tag data link settings does
not agree with the I/O direc-
tion of the variable in the CPU
Unit.
• There is no network variable
in the CPU Unit that corre-
sponds to the tag setting.
FALSE: Other than the above.
BOOL TRUE or
FALSE
page 3-47
_EIP1_TagAdrErr CIP Communica-
tions1 Tag Name
Resolution Error
Indicates that tag resolution for CIP com-
munications 1 failed (i.e., the address
could not be identified from the tag name).
TRUE: Tag resolution failed (i.e., the
address could not be identified
from the tag name). The follow-
ing causes are possible.
• The size of the network vari-
able is different from the tag
settings.
• The I/O direction that is set in
the tag data link settings does
not agree with the I/O direc-
tion of the variable in the CPU
Unit.
• There is no network variable
in the CPU Unit that corre-
sponds to the tag setting.
FALSE: Other than the above.
Note You can use this system-defined vari-
able only for NX-series CPU Units.
BOOL TRUE or
FALSE
page 3-47
Variable name Meaning Function Data type
Range of
values
Reference