Omron CJ1W-EIP21 Operation Manuals page 200

7 Tag Data Link Functions
 Programming Example to Detect Normal Operation
The following programming can be used to confirm that normal communications are being per-
formed for each target node. If the Controller status is included in the tag data, the status of the Con-
troller can also be detected.
• Programming Example 1 to Detect Normal Operation
Online
(*_ETNOnlineSta)
• Programming Example 2 to Detect Normal Operation
Online
(*_ETNOnlineSta)
7-70
Normal Target Node
Target Node PLC Operating
Table (#1)
*_EstbTargetSta[1]
*_TargetPLCMdSta[1]
Normal Target Node
Target Node PLC Operating
Table
(#2)
*_TargetPLCMdSta[2]
*_EstbTargetSta[2]
All Tag Data Links Operating
*_TDLAllRunSta
Target Node PLC Operating
Target Node PLC Operating
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
Target Node PLC Error
Flags (#1) Flags (#1)
*_TargetPLCErr[1]
Target Node PLC Error
Flags (#2)
Flags (#2)
*_TargetPLCErr[2]
Target Node PLC Error
Flags (#1) Flags (#1)
*_EstbTargetSta[1] *_TargetPLCErr[1]
Target Node PLC Error
Flags (#2) Flags (#2)
*_EstbTargetSta[2] *_TargetPLCErr[2]
Node 1 data
link operation
normal
Node 2 data
link operation
normal
Data link
operation
normal
Node 1 data
link operation
normal
Node 2 data
link operation
normal