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Ladder Programming with Tag Data Links Section 6-3
Programming for Revision 2 or Higher
Programming for Revision 1 and Revision 2
Programming to Detect
Errors: Example 1
The following programming can be used to check for errors for each target
node. This programming is used to detect errors only after the data links for all
nodes have started normally.
Programming for Revision 2 or Higher
Programming to Detect
Errors: Example 2
The following programming can be used to detect tag data link errors at the
local node.
Tag Data Link
Operating
n+11 bit 01
Normal Target Node
Flag 1
n+20 bit 01
PLC Operating
Flag 1
n+2 bit 01
PLC Error
Flag 1
n+6 bit 01
Node 1 Data Link
Normal Operation Flag
Normal Target Node
Flag 2
n+20 bit 02
PLC Operating
Flag 2
n+2 bit 02
PLC Error
Flag 2
n+6 bit 02
Node 2 Data Link
Normal Operation Flag
Tag Data Link
Operating
n+11 bit 01
All Tag Data Links
Operating
n+12 bit 14
Normal Operation Flag
PLC Operating
Flag 1
n+2 bit 01
PLC Error
Flag 1
n+6 bit 01
Node 1 Data Link
Normal Operation Flag
PLC Operating
Flag 2
n+2 bit 02
PLC Error
Flag 2
n+6 bit 02
Node 2 Data Link
Normal Operation Flag
Tag Data Link
Operating
n+11 bit 01
Normal Target Node
Flag 1
n+20 bit 01
Node 1
Error output
Normal Target Node
Flag 1
n+20 bit 01
Node 1
Error output
Normal Target Node
Flag 2
n+20 bit 02
Node 2
Error output
Normal Target Node
Flag 2
n+20 bit 02
Node 2
Error output
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