Variable name Meaning Function Data type
Range of
values
Reference
_EIP1_MultiSwO-
NErr
CIP Communica-
tions1 Multiple
Switches ON Error
Indicates that more than one switch
turned ON at the same time in CIP com-
munications 1.
TRUE: More than one data link start/stop
switch changed to TRUE at the same
time.
F
ALSE: Other than the above.
Note You can use this system-de-
fined variable only for NX-ser-
ies CPU Units.
BOOL TRUE or
FALSE
page 3-50
_EIP2_MultiSwO-
NErr
CIP Communica-
tions2 Multiple
Switches ON Error
Indicates that more than one switch
turned ON at the same time in CIP com-
munications 2.
TRUE: More than one data link start/stop
switch changed to TRUE at the same
time.
F
ALSE: 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 3-50
_EIP_TcpAppCfgErr TCP Application Set-
ting Error
TRUE: At least one of the set values for a
TCP application (FTP
, NTP, SNMP) is in-
correct. Or, a read operation failed.
FALSE: Normal
BOOL TRUE or
FALSE
page 3-51
_EIP_NTPSrvErr NTP Server Connec-
tion Error
TRUE: The NTP client failed to connect
to the server (timeout).
F
ALSE: NTP is not set. Or, NTP is set
and the connection was successful.
BOOL TRUE or
FALSE
page 3-51
_EIP_DNSSrvErr DNS Server Connec-
tion Error
TRUE: The DNS client failed to connect
to the server (timeout).
F
ALSE: DNS is not enabled. Or, DNS is
enabled and the connection was suc-
cessful.
BOOL TRUE or
FALSE
page 3-51
*1. With the NJ-series CPU Unit, this variable can be used with the unit version 1.11 or later.
Hierarchical Relationship of System-defined Variables Related to EtherNet/IP Errors in the
NJ-series CPU Unit
The system-defined variables that are related to EtherNet/IP errors have the following hierarchical
relationship. For example, if the value of any of the _EIP_PortErr, _EIP_CipErr, or _EIP_T
cpAppErr
variables in the second level is TRUE, then the _EIP_ErrSta variable in the first level also changes
to TRUE. Therefore, you can check the values of system-defined variables in a higher level to see
if an error has occurred for a variable in a lower level.
3 System-defined Variables Related to the Built-in EtherNet/IP Port
3-18
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
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