Mitsubishi Electric MELSEC iQ-R-R6SFM - When One System Is Started Automatically Even Though a Tracking Communication Error Has Occurred

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35 BASIC CONCEPT
35.8 Determination of Control System/Standby System
When one system is started automatically even though a tracking
communication error has occurred
When the other system is powered off or a tracking cable has an error at a system start, the CPU module waits for the start-up
of the other system. The following shows a program example to start up only one of the systems using external signals
without waiting for the start-up of the other system.
In the following example, the program prevents both systems from operating as control systems.
This program example is not supported with the redundant line structure of CC-Link IE Field Network.
System configuration
The following figure shows a configuration example of the system.
*1 Starting up one system is allowed without the CC-Link IE Field Network master/local module.
Wiring example
The following figure shows a wiring example.
• TD is an on delay timer wired externally. Input the contact output of the on delay timer to X30.
• The 24V power supply is always input.
(1) Power supply module (R61P)
(2) CPU module (RnPSFCPU)
(3) SIL2 function module (R6PSFM)
(4) Redundant function module (R6RFM)
(5) Input module (RX40C7)
(6) Output module (RY40NT5P)
(7) Tracking cable
(8) CC-Link IE Field Network master/local module (RJ71GF11-T2)
*1
(8)
(2)(1) (3) (4) (5) (6) (7)
(2)(1) (3) (4) (5) (6) (7)
24V
24V
TD
TD
R61P R6RFM
RJ71GF11-T2
RJ71GF11-T2
R6PSFM
X30
X31
X32
COM(+)
Y40
Y41
Y42
COM(-)
V(+)
RX40C7 RY40NT5P
RnPSFCPU
R61P R6RFMR6PSFM
RnPSFCPU
X30
X31
X32
COM(+)
Y40
Y41
Y42
COM(-)
V(+)
RX40C7 RY40NT5P
(Input) (Output) (Input) (Output)