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7 Tag Data Link Functions
NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User’s Manual (W563)
7-
3 Lad
d
er Prog
ramm
ing
for T
ag D
at
a L
inks
7
7-3
-1 Ladd
er Prog
ramming for T
ag Da
ta Links
Programming Example to Detect Errors
The following programming can be used to check for tag data link errors for each target node. This
programming is used to detect errors only after the data links for all nodes have started normally.
*1 Replace this with the following variable name, depending on which port you use.
Built-in EtherNet/IP port:
_EIP1_EtnOnlineSta
Internal port:
_EIPIn1_EtnOnlineSta
Data Processing Programming Example
•
The following type of programming can be used to process data only when the data links are
operating normally.
Online
(_EIP_EtnOnlineSta)
*1
Normal Target
Node Information (#2)
_EIP_EstbTargetSta[2]
Node 2
error output
Normal Target
Node Information (#2)
_EIP_EstbTargetSta[2]
Normal Target
Node Information (#1)
_EIP_EstbTargetSta[1]
Node 1
error output
Normal Target
Node Information (#1)
_EIP_EstbTargetSta[1]
Node 1 error output
Node 2 error output
Normal operation flag
Normal operation flag
Additional parts
The parts of the ladder
program that use the data
link area for the relevant
node are processed only
when the corresponding
normal operation flag is ON.
Summary of Contents for Sysmac NY512-1300
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