7 Tag Data Link Functions
7-62
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
7-3 Ladder Programming for Tag Data
Links
If data in the ladder program is linked by tag data links, add conditions 1 to 3 in the ladder program for
that data. If you want to use target node Controller information in the input conditions, add conditions 4
and 5.
z Conditions to enable the NJ-series Built-in EtherNet/IP Port’s tag data links:
(1) The following error bits in the Built-in EtherNet/IP Error variable (_EIP_ErrSta) are
FALSE.
Major fault: Bit 7,
Partial fault: Bit 6,
and Minor fault: Bit 5
(2) Also, the Online variable (
_EIP_EtnOnlineSta) is TRUE.
z Conditions showing that connections are established with the target device,
and tag data links are operating:
(3) The bit corresponding to the target node address in the Normal Target Node Informa-
tion variable (_EIP_EstbTargetSta) is TRUE.
z Condition for the Target PLC Operating Mode (operating or stopped)
(_EIP_TargetPLCModeSta) (valid for OMRON Controllers only):
(4) The Controller operating mode of the target node is ON.
z Condition for the Controller error status (fatal or non-fatal error) of the target
node (valid for OMRON Controllers only):
(5) The target node Controller error information element in the Target PLC Error Informa-
tion (
_EIP_TargetPLCErr) is FALSE.
When you want to use the Target Node Controller Error Flag, the Controller status must be
included in the tag sets for both the originator and target. Include the Controller status by
using the Network Configurator to select the Include Options in the Edit Tag Set Dialog
Boxes.
7-3-1 Ladder Programming for Tag Data Links
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