Mitsubishi Electric MELSEC iQ-R Series User Manual page 17

Term
Redundant power supply base unit
Redundant power supply module
Redundant power supply system
Redundant system
Remote device station
Remote head module
Remote I/O station
Remote input (RX)
Remote output (RY)
Remote register (RWr)
Remote register (RWw)
RQ extension base unit
SIL2 function module
SIL2 mode
SIL2 Process CPU
Slave station
Standby system
System A
System B
System switching
Tracking cable
Transient transmission
Description
A generic term for base units used for a redundant configuration of power supplies.
This unit is used together with redundant power supply modules, to build a redundant power supply
system.
A power supply module used for a redundant configuration of power supplies.
This module is used together with a redundant power supply base unit, to build a redundant power
supply system.
A system that has two power supply modules on a base unit. Even if one power supply module has
failed, operation can be continued with the other power supply module.
A system consisting of two systems that have same configuration (CPU module, power supply module,
network module, and other modules). Even after an error occurs in one of the two system, the other
system takes over the control of the entire system. For details, refer to "Redundant system" of the
following manual.
 MELSEC iQ-R Module Configuration Manual
A station that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic
transmission. This station responds to a transient transmission request from another station.
The abbreviation for the RJ72GF15-T2 CC-Link IE Field Network remote head module
A station that exchanges I/O signals (bit data) with the master station by cyclic transmission
Bit data input from a slave station to the master station (For some areas in a local station, data are input
in the opposite direction.)
Bit data output from the master station to a slave station (For some areas in a local station, data are
output in the opposite direction.)
Word data input from a slave station to the master station (For some areas in a local station, data are
input in the opposite direction.)
Word data output from the master station to a slave station (For some areas in a local station, data are
output in the opposite direction.)
The abbreviation for the MELSEC iQ-R series RQ extension base unit
Another name for the R6PSFM
This module is used with the SIL2 Process CPU as a pair and performs safety control. The module can
only be paired with the SIL2 Process CPU.
An operation mode for the I/O module and the intelligent function module that perform the safety input/
output in the SIL2 level. For details on the SIL2 mode, refer to the following.
 Manuals for the I/O module or intelligent function module used
A generic term for the R08PSFCPU, R16PSFCPU, R32PSFCPU, and R120PSFCPU.
This module is used with a SIL2 function module as a pair, and performs both standard control and
safety control. This module is also used with a redundant function module as a pair and configures a
redundant system.
A generic term for a local station, remote I/O station, remote device station, and intelligent device
station
A backup system in a redundant system
A system that is set as the system A to distinguish two systems, which are connected with two tracking
cables.
When the two systems start up at the same time, this system will be a control system. System switching
does not affect the system A/B setting.
A system that is set as the system B to distinguish two systems, which are connected with two tracking
cables.
When the two systems start up at the same time, this system will be a standby system. System
switching does not affect the system A/B setting.
A function which switches the systems between the control system and the standby system to continue
operation of the redundant system when a failure or an error occurs in the control system
An optical fiber cable used to connect two redundant function modules in a redundant system
A function of communication with another station, which is used when requested by a dedicated
instruction or the engineering tool
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