3-9
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
Additional Information
Relationships between the Target Node Information Tables
z Functional Classification: EtherNet/IP Communications Switches
You can start and stop tag data links.
You can start and stop tag data links.
Additional Information
There is a system-defined variable for communications that is related to FINS/TCP* communica-
tions.
* You can use FINS message communications with NJ-series Controllers. However, not all memory areas
in the NJ-series CPU Unit can be accessed. If you require this functionality, e.g., to connect to existing
systems, consult with your OMRON representative.
Registered Tar-
get Node Infor-
mation
(_EIP_RegTarget
Sta)
Registered Target
Node Information
Valid only when
_EIP_RegTargetSta is
TRUE
Normal Target Node
Information
Valid only when
_EIP_EstbTargetSta
is TRUE
Registered Target
Node Information
Valid only when
_EIP_RegTargetSta is
TRUE
Description
Normal Target Node
Information
(_EIP_EstbTargetSta)
Target PLC Error
Information
(_EIP_EIP_TargetPLC
Err)
Target Node Error
Information
(_EIP_TargetNodeErr)
TRUE TRUE FALSE FALSE A connection with
the target node was
established nor-
mally and there is
no error in the tar-
get PLC.
TRUE TRUE A connection with
the target node was
established but
there is an error in
the target PLC.
FALSE Disabled TRUE A connection with
the target node was
not established nor-
mally.
FALSE Disabled Disabled Disabled The information is
not valid because
the target node is
not registered.
Variable name Meaning Function Data type
Range of
values
Reference
_EIP_TDLinkStartCmd Tag Data Link
Communications
Start Switch
This is the start switch for data links. BOOL TRUE or
FALSE
page 3-17
_EIP_TDLinkStopCmd Tag Data Link
Communications
Stop Switch
This is the stop switch for data links. BOOL TRUE or
FALSE
page 3-17
Variable
name
Meaning Description Data type
Opera-
tion/refresh
timing
Range of
values
Default R/W access
Related
instruc-
tions
FINSTCP-
ConnSta
FINS/TCP
Connection
Status
This is the
FINS/TCP
connection
status.
WORD Anytime 16#0000 to
16#FFFF
0 R None