Appendix; Appendix 1 Precautions For Accessing Redundant Cpu System; Redundant Cpu Specification; Operation At Occurrence Of System Switching - Mitsubishi Electric MELSEC SW1DNC-CCIEF-B User Manual

APPENDIX

Appendix 1
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.
Page 107 Target setting

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
Logical station No.(66)
Network No.
Station No.
Multiple PLC
Redundant PLC
<Before system switching>
CC-Link IE Field Network
(Network No.2)
Station No.3
APPX
176

Appendix 1 Precautions for Accessing Redundant CPU System

Precautions for Accessing Redundant
CPU System
Station No.4
CC-Link IE Field Network module
MELSECNET/H module
Station No.5
MELSECNET/H
(Network No.1)
Control system
Station No.1
Description

1
1
Not specified
Control system
Standby system
Tracking cable
Station No.2