Variable name Meaning Function Data type
Range of
values
Reference
_EIP1_TagAdrErr CIP Communica-
tions1 T
ag Name
Resolution Error
Indicates that the tag resolution for CIP
communications 1 failed (i.e., the ad-
dress 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.
Note You can use this system-de-
fined variable only for NX-ser-
ies CPU Units.
BOOL TRUE or
F
ALSE
page 3-49
_EIP2_TagAdrErr CIP Communica-
tions2 T
ag Name
Resolution Error
Indicates that the tag resolution for CIP
communications 2 failed (i.e., the ad-
dress 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.
Note You can use this system-de-
fined variable only for the
NX701 CPU Units and NX102
CPU Units.
BOOL TRUE or
F
ALSE
page 3-50
_EIP_MultiSwONErr Multiple Switches ON
Error
NX-series CPU Units: Indicates that more
than one switch turned ON at the same
time in CIP communications 1.
TRUE: More than one data link start/stop
switch changed to TRUE at the same
time.
F
ALSE: Other than the above.
NJ-series CPU Units: Indicates that more
than one switch turned ON at the same
time.
TRUE: More than one data link start/stop
switch changed to TRUE at the same
time.
FALSE: Other than the above.
BOOL TRUE or
FALSE
page 3-50
3 System-defined Variables Related to the Built-in EtherNet/IP Port
3-17
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
3-2 System-defined Variables
3
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