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7-71
7 Tag Data Link Functions
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
7-3 Lad
d
er Pr
og
ramm
ing
f
o
r T
a
g
Data L
inks
7
7-3
-1 Ladd
er Prog
ramming f
or T
ag D
ata 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.
Data Processing Programming Example
•
The following type of programming can be used to process data only when the data links are oper-
ating normally.
Online
(*_ETNOnlineSta)
Normal Target
Node Table (#2)
*_EstbTargetSta[2]
Node 2
error output
Normal Target
Node Table (#2)
*_EstbTargetSta[2]
Normal Target Node Table (#1)
*_EstbTargetSta[1]
Node 1
error output
Normal Target
Node Table (#1)
*_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.
Содержание SYSMAC CJ1W-EIP21
Страница 8: ...Manual Structure 6 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 10: ...Sections in this Manual 8 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 20: ...Read and Understand this Manual 18 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 42: ...Revision History 40 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 68: ...1 Introduction 1 26 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 80: ...2 Installing Ethernet Networks 2 12 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 130: ...6 Testing Communications 6 4 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 206: ...7 Tag Data Link Functions 7 76 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 246: ...8 Message Communications 8 40 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 266: ...9 FTP Server 9 20 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 374: ...13 Troubleshooting 13 56 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495...
Страница 431: ...Index 1 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495 I Index...
Страница 436: ...Index 6 CJ series EtherNet IP Units Operation Manual for NJ series CPU Unit W495 Index...
Страница 437: ......