Program Examples Of The Redundant System; System Configuration - Mitsubishi Electric MELSEC iQ-R Series User Manual

3.2

Program Examples of the Redundant System

This chapter describes program examples of when using the RJ71LP21-25 in a redundant system.

System configuration

This section describes a program example of when accessing the control system of the control station (station No.1) or sub-
control station (station No.2) in the redundant system from the normal station (station No.3).
(1) (2)
(1) Control station: Station No.1
(2) Sub-control station: Station No.2
(3) Normal station: Station No.3
■Common to the control station (station No.1) and sub-control station (station No.2)
• Power supply module: R61P
• CPU module: R08PCPU
• Redundant function module: R6RFM (Start I/O number: 0000H to 001FH)
• MELSECNET/H network module: RJ71LP21-25 (Start I/O number: 0020H to 003FH)
■Normal station (station No.3)
• Power supply module: R61P
• CPU module: R04CPU
• MELSECNET/H network module: RJ71LP21-25 (Start I/O number: 0000H to 001FH)
(3)
3 PROGRAMMING
3.2 Program Examples of the Redundant System
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