3-5
3 System-defined Variables Related to the Built-in EtherNet/IP Port
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
3-2 System-defined Variables
3
_EIP_IPRTblErr TCP/IP
Advanced
Setting Error
TRUE: There is an error in one of the follow-
ing settings. Or, a read operation failed.
• IP router table settings
• Hosts settings
FALSE: Normal
BOOL TRUE or
FALSE
page 3-13
_EIP_IdentityErr Identity Error TRUE: The identity information (which you
cannot overwrite) is not correct. Or, a read
operation failed.
FALSE: Normal
BOOL TRUE or
FALSE
page 3-13
_EIP_TDLinkCfgErr Tag Data Link
Setting Error
TRUE: The tag data link settings are incor-
rect. Or, a read operation failed.
FALSE: Normal
BOOL TRUE or
FALSE
page 3-13
_EIP_TDLinkOpnErr Tag Data Link
Connection
Failed
TRUE: The connection was not established
because the remote node information in the
tag data link parameters was different from
the actual node information.
Note This variable does not change to TRUE
if there is no remote node when the
power is turned ON.
FALSE: Other than the above.
BOOL TRUE or
FALSE
page 3-13
_EIP_TDLinkErr Tag Data Link
Communications
Error
TRUE: A timeout occurred in a tag data link
connection.
FALSE: Other than the above.
BOOL TRUE or
FALSE
page 3-14
_EIP_TagAdrErr Tag Name
Resolution Error
TRUE: Tag resolution failed (i.e., the address
could not be identified from the tag name).
The following causes are possible.
• The size of the network-published variable
does not agree with the tag setting.
• 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-published variable in
the CPU Unit that corresponds to the tag
setting.
FALSE: Other than the above.
BOOL TRUE or
FALSE
page 3-14
_EIP_MultiSwONErr Multiple Switches
ON Error
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 3-14
_EIP_TcpAppCfgErr TCP/IP Setting
Error
TRUE: At least one of the set values for a
TCP/IP application (FTP, NTP, SNMP) is
incorrect. Or, a read operation failed.
FALSE: Normal
BOOL TRUE or
FALSE
page 3-14
_EIP_NTPSrvErr NTP Server Con-
nection Error
TRUE: The NTP client failed to connect to the
server (timeout).
FALSE: NTP is not set or the connection was
successful.
BOOL TRUE or
FALSE
page 3-14
_EIP_DNSSrvErr DNS Server Con-
nection Error
TRUE: The DNS client failed to connect to the
server (timeout).
FALSE: DNS is not enabled. Or, DNS is
enabled and the connection was successful.
BOOL TRUE or
FALSE
page 3-15
Variable name Meaning Function Data type
Range of
values
Reference
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