Chapter 8 System Configuration; Redundant Master Station - Mitsubishi Electric MELSEC iQ-RX40NC6B Application User's Manual

8
SYSTEM CONFIGURATION
This chapter describes the system configurations for using the I/O module with diagnostic functions in SIL2 mode. For
application in SIL2 mode, a redundant system must be configured based on a redundant master station or redundant line. In
such a case, mount the I/O module with diagnostic functions to a remote head module.
Display of I/O module with diagnostic functions
For using the I/O module with diagnostic functions in SIL2 mode, two modules must be used as a pair as shown below.
Configure the settings of modules using GX Works3 so that a module near the remote head module is handled as Main and
another as Sub. On the screen of GX Works3, the modules are displayed as listed in the table below.
Module
Input module with diagnostic functions
Output module with diagnostic functions
8.1

Redundant Master Station

The following diagram shows the system configuration with a redundant master station.
• System configuration diagram
(1)
(5)
RX40NC6B(Main)
RX40NC6B(Sub)
RY40PT5B(Main)
RY40PT5B(Sub)
(3)
(3)
(4) (4)
Model name displayed on GX Works3
RX40NC6B(S2M)
RX40NC6B(S2S)
RY40PT5B(S2M)
RY40PT5B(S2S)
(2)
(6)
(7)
8 SYSTEM CONFIGURATION
8.1 Redundant Master Station
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