22
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
Base unit A generic term for main base units, extension base units, and RQ extension base units
C Controller module A generic term for the MELSEC iQ-R series C Controller module
CC-Link IE A generic term for CC-Link IE Controller Network and CC-Link IE Field Network
CC-Link IE Controller Network-equipped module A generic term for the following modules when the CC-Link IE Controller Network function is used:
• RJ71GP21-SX
• RJ71EN71
• RnENCPU
CC-Link IE Field Network-equipped master/local module A generic term for the following modules when the CC-Link IE Field Network function is used:
• RJ71GF11-T2
• RJ71EN71
• RnENCPU
Control CPU A CPU module that controls connected I/O modules and intelligent function modules.
In a multiple CPU system, a control CPU is set to each connected module.
Control system A system that controls a redundant system and performs network communications in a redundant
system
CPU module A generic term for the MELSEC iQ-R series CPU modules
Dedicated instruction An instruction that facilitates the programming to use the functions of a module
Engineering tool The product name of the software package for the MELSEC programmable controllers
Ethernet interface module with built-in CC-Link IE Another name for the RJ71EN71
Extended temperature range base unit A generic term for base units compatible with an operating ambient temperature of 0 to 60.
Extension base unit The abbreviation for the MELSEC iQ-R series extension base unit
Extension cable The abbreviation for the MELSEC iQ-R series extension cable
I/O module A generic term for the input module, output module, I/O combined module, and interrupt module
Intelligent function module A module that has functions other than input and output, such as an A/D converter module and D/
A converter module
Main base unit The abbreviation for the MELSEC iQ-R series main base unit
Motion CPU A generic term for MELSEC iQ-R series Motion controllers
Multiple CPU system A system where 2 to 4 CPU modules control I/O modules or intelligent function modules assigned
to
NCCPU Another term for the R16NCCPU
Network module A generic term for the following modules:
• Ethernet interface module
• CC-Link IE Controller Network module
• Module on CC-Link IE Field Network
• MELSECNET/H network module
• MELSECNET/10 network module
• RnENCPU (network part)
New control system A system that has switched to control system from standby system after system switching
Power supply module The abbreviation for the MELSEC iQ-R series power supply module
Process CPU A generic term for the R08PCPU, R16PCPU, R32PCPU, and R120PCPU
Process CPU (process mode) A Process CPU that operates in the process mode.
Process control function block and the online module change function can be executed.
Process CPU (redundant mode) A Process CPU that operates in the redundant mode.
This CPU module can be used for building a redundant system. Process control function block
and the online module change function can be executed even in this mode.
Programmable controller CPU A generic term for the R04CPU, R04ENCPU, R08CPU, R08ENCPU, R16CPU, R16ENCPU,
R32CPU, R32ENCPU, R120CPU, and R120ENCPU
Q5B The abbreviation for the MELSEC-Q series extension base unit (type requiring no power supply
module)
Q6B The abbreviation for the MELSEC-Q series extension base unit (type requiring a power supply
module)
Redundant function module Another term for the R6RFM.
This module is used with a Process CPU (redundant mode) as a pair, to build a redundant system.
Redundant power supply base unit 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.
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