Chapter 35 Basic Concept - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

35
BASIC CONCEPT
The SIL2 Process CPU, SIL2 function module, and the modules which have the SIL2 mode obtained the safety approvals
(IEC61511: 2015 SIL2 and IEC61508: 2010 SIL2).
Use the SIL2 Process CPU with the SIL2 function module as a pair. Programs for safety control and for standard control can
be executed simultaneously in one system. These products can be used to construct a safety function for general industrial
machinery.
Use the SIL2 Process CPU with the redundant function module as a pair to configure a redundant system.
Mount the modules on the slots from the CPU slot to slot number 1 in the order of the SIL2 Process CPU, SIL2 function
module, and redundant function module.
The mounting positions and order are as described above. They cannot be changed.
I/O modules and intelligent function modules set to SIL2 mode are mounted to the intelligent device station (remote head
module) on CC-Link IE Field Network.
(1)
(1) SIL2 Process CPU
(2) SIL2 function module
(3) Redundant function module
(4) Tracking cable
(5) CC-Link IE Field Network master/local module
(6) Remote head module
(7) Modules set to SIL2 mode
*1 For details on modules set to SIL2 mode, refer to the following.
 MELSEC iQ-R Module Configuration Manual
 Manuals for the I/O module or intelligent function module used
35 BASIC CONCEPT
564
(2) (3) (5)
(6)
*1
(1)
(4)
(4)
(2) (3) (5)
(7)