Variable name Meaning Function Data type
Range of
values
Reference
_EIP2_TDLinkErr CIP Communica-
tions2 T
ag Data Link
Communications Er-
ror
Indicates that a timeout occurred in a tag
data link connection for CIP communica-
tions 2.
TRUE: A timeout occurred.
FALSE: Other than the above.
Note You can use this system-de-
fined variable only for the
NX701 CPU Units and NX102
CPU Units.
BOOL TRUE or
FALSE
page 3-48
_EIP_TagAdrErr Tag Name Resolution
Error
NX-series CPU Units: Indicates that the
tag resolution for CIP communications 1
failed (i.e., the address could not be iden-
tified from the tag name).
TRUE: T
ag resolution failed (i.e., the ad-
dress could not be identified from the tag
name). The following causes are possi-
ble.
• The size of the network variable is dif-
ferent from the tag settings.
• The I/O direction that is set in the tag
data link settings does not agree with
the I/O direction of the variable in the
CPU Unit.
• There is no network variable in the
CPU Unit that corresponds to the tag
setting.
FALSE: Other than the above.
NJ-series CPU Units: Indicates that tag
name resolution failed (i.e., the address
could not be identified from the tag
name).
TRUE: Tag resolution failed (i.e., the ad-
dress could not be identified from the tag
name). The following causes are possi-
ble.
• The size of the network variable is dif-
ferent from the tag settings.
• The I/O direction that is set in the tag
data link settings does not agree with
the I/O direction of the variable in the
CPU Unit.
• There is no network variable in the
CPU Unit that corresponds to the tag
setting.
FALSE: Other than the above.
BOOL TRUE or
F
ALSE
page 3-49
3 System-defined Variables Related to the Built-in EtherNet/IP Port
3-16
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)