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APPX
Appendix 1 Precautions for Accessing Redundant CPU System
APPENDIX
Appendix 1
Precautions for Accessing Redundant
CPU System
This section explains precautions for accessing a redundant CPU system via CC-Link IE Controller Network or MELSECNET/
H network using the CC-Link IE Field Network board.
Redundant CPU specification
When the system (control system, standby system, system A, system B) of the Redundant CPU is specified to access the
Redundant CPU, the Logical station No. set on the "Target setting" screen of the CC IE Field Utility is used for access. For the
Logical station No. setting, refer to the following section.
Operation at occurrence of system switching
When system switching occurs during access to the Redundant CPU, access to the Redundant CPU set for the Logical
station No. is continued.
Ex.
When the following Logical station No.(66) was specified for access
Item
Description
Logical station No.(66)
Network No.
1
Station No.
1
Multiple PLC
Not specified
Redundant PLC
Control system
<Before system switching>
MELSECNET/H
Station No.5
Station No.4
Station No.3
Station No.2
Station No.1
Standby system
Control system
CC-Link IE Field Network module
MELSECNET/H module
CC-Link IE Field Network
Tracking cable
(Network No.1)
(Network No.2)
Summary of Contents for MELSEC Q80BD-J71GF11-T2
Page 2: ......
Page 6: ...4 Disposal Precautions CAUTION When disposing of this product treat it as industrial waste ...
Page 118: ...116 12 MONITORING MEMO ...
Page 140: ...138 14 MELSEC DATA LINK LIBRARY MEMO ...
Page 142: ...140 15 PROGRAMMING 15 1 Precautions on Programming MEMO ...
Page 243: ...241 I U Utility 83 ...
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