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7 Tag Data Link Functions
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
7-3 Ladder Programming for Tag Data Links
7
7-3-1 Ladder Programming for Tag Data Links
Precautions for Correct UsePrecautions for Correct Use
Even if an error occurs in communications with a target device, the input data from the target
device will remain stored in words allocated in memory to the local node. To prevent malfunc-
tions, write the user program so that no input processing is performed when the following Built-in
EtherNet/IP Error (_EIP_ErrSta) bits are TRUE.
Major fault: Bit 7
Partial fault: Bit 6
Minor fault: Bit 5
Node B data link
normal operation flag
Node C data link
normal operation flag
Node A data link
normal operation flag
MC
MC
Node A data processing
Node C data processing
Node B data processing
MC
MCR
MCR
MCR
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