3-15
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)
3-3 Specifications for Individual System-defined
Variables
3
z Functional Classification: EtherNet/IP Communications Status
Variable name _EIP_DNSSrvErr
Meaning DNS Server Connection Error Global/local Global
Function 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.
Data type BOOL Range of values TRUE or FALSE
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name _EIP_EtnOnlineSta
Meaning Online Global/local Global
Function TRUE: The built-in EtherNet/IP port’s communications can be used. (The link is ON and IP address is defined.
Also, there are no errors).
FALSE: The built-in EtherNet/IP port’s communications is disabled due to an error in initial processing or restart
processing.
Data type BOOL Range of values TRUE or FALSE
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name _EIP_TDLinkRunSta
Meaning Tag Data Link Communications Status Global/local Global
Function TRUE: At least one connection is in normal operation.
FALSE: Other than the above.
Data type BOOL Range of values TRUE or FALSE
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name _EIP_TDLinkAllRunSta
Meaning All Tag Data Link Communications Status Global/local Global
Function TRUE: Tag data links are communicating in all connections as the originator.
FALSE: An error occurred in at least one connection.
Data type BOOL Range of values TRUE or FALSE
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name _EIP_RegTargetSta [255]
Meaning Registered Target Node Information Global/local Global
Function This variable gives a list of nodes for which built-in EtherNet/IP connections are registered.
This variable is valid only when the built-in EtherNet/IP port is the originator.
Array[x] is TRUE: The connection to the node with a target node ID of x is registered.
Array[x] is FALSE: The connection to the node with a target node ID of x is not registered.
Data type ARRAY [0..255] OF BOOL Range of values TRUE or FALSE
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
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