MELSEC iQ-R is Mitsubishi Electric's modular controller series for the iQ Platform, built to lower total cost of ownership, raise reliability and reuse existing assets. One rack can combine programmable controller, motion, safety, process and C/Windows CPUs with I/O, analog, motion and network modules. TKK supplies the iQ-R lineup and supports projects from system design to migration from MELSEC-Q.

CPU lineup

• Programmable controller CPUs: R00, R01, R02, R04, R08, R16, R32 and R120CPU, from 10K to 1,200K program steps.
• R04 to R120 ENCPU versions add an embedded CC-Link IE port (1000BASE-T) for Ethernet, CC-Link IE Control or CC-Link IE Field.
• Motion CPUs: R16MTCPU, R32MTCPU and R64MTCPU for 16, 32 or 64 axes over SSCNET III/H.
• Safety CPUs: R08, R16, R32 and R120SFCPU-SET, with up to 40K steps for safety programs.
• Process CPUs: R08 to R120PCPU, for up to 300 control loops with online module change.
• SIL2 Process CPUs: R08 to R120PSFCPU-SET, and redundant systems with the R6RFM redundant function module.
• C Controller and Windows: R12CCPU-V (VxWorks, C/C++), RD55UP06-V and RD55UP12-V C intelligent function modules, and R102WCPU-W MELSECWinCPU (Windows 10 IoT Enterprise).

Programmable controller CPU specifications

• Up to 4,096 I/O points (X/Y) on every model.
• Program capacity: R00 10K, R01 15K, R02 20K, R04 40K, R08 80K, R16 160K, R32 320K and R120 1,200K steps.
• Basic instruction (LD) speed: 0.98 ns on R04 and above, 3.92 ns on R02 and 31.3 ns on R00 and R01.
• Languages: LD, ST, FBD and SFC, plus function blocks and labels.
• Built-in USB 2.0 mini-B, 100BASE-TX Ethernet, CC-Link IE Field Network Basic, SLMP, standard PID, web server and security functions.
• SD card slot on all models except R00. Extended SRAM cassette and internal database on R04 and above.

Safety and process control

The Safety CPU is designed for applications up to SIL 3 (IEC 61508) and PL e (ISO 13849-1). Under Mitsubishi Electric notice FA-A-0494-A, conformity for the current models moves from third-party certification to Mitsubishi self-declaration from 20 Jan 2027, so check the notice for your project. The SIL2 Process CPU holds third-party SIL 2 (IEC 61508) certification at firmware version 14 (FA-A-0469-B). Process CPUs support up to 300 control loops and can be paired into redundant systems.

Base units, I/O and network modules

• Main bases R33B, R35B, R38B and R312B (3 to 12 slots), slim bases and extension bases.
• RQ65B, RQ68B and RQ612B extension bases accept MELSEC-Q modules.
• RX input and RY output modules, including spring-clamp and diagnostic types.
• Analog and temperature modules, including isolated, HART and high-speed R60ADH4 (1 μs per channel) types.
• Motion modules: RD78G series for CC-Link IE TSN and RD77MS Simple Motion for SSCNET III/H.
• Networks: CC-Link IE TSN, CC-Link IE Field and Control, CC-Link, EtherNet/IP, PROFINET, PROFIBUS, DeviceNet, AnyWireASLINK, BACnet and serial.
• Information modules: RD81MES96N (MES), RD81OPC96 (OPC UA), RD81DL96 data logger and RD81RC96 system recorder.

Engineering software

iQ-R is programmed with GX Works3. MELSOFT iQ Works bundles GX Works3 with MT Works2, GT Works3 and other MELSOFT tools, PX Developer supports process control, and CW Configurator sets up the C Controller.

Models in the series

Main MELSEC iQ-R models TKK can supply, from Mitsubishi Electric catalog L(NA)08298ENG-Z. Contact TKK to confirm the right model for your system.

• Programmable controller CPUs: R00CPU, R01CPU, R02CPU, R04CPU, R08CPU, R16CPU, R32CPU and R120CPU.
• CC-Link IE embedded CPUs: R04ENCPU, R08ENCPU, R16ENCPU, R32ENCPU and R120ENCPU.
• Motion CPUs: R16MTCPU, R32MTCPU and R64MTCPU.
• Safety CPUs: R08SFCPU-SET, R16SFCPU-SET, R32SFCPU-SET and R120SFCPU-SET.
• Process CPUs: R08PCPU, R16PCPU, R32PCPU and R120PCPU.
• SIL2 Process CPUs: R08PSFCPU-SET, R16PSFCPU-SET, R32PSFCPU-SET and R120PSFCPU-SET, with the R6RFM redundant function module.
• C Controller and Windows: R12CCPU-V, RD55UP06-V, RD55UP12-V and R102WCPU-W.
• Power supplies: R61P, R62P, R63P, R64P, R69P, R61SP, R63RP, R64RP and R69RP.
• Base units: R33B, R35B, R38B and R312B main bases; R32SB, R33SB and R35SB slim bases; R65B, R68B and R612B extension bases; RQ65B, RQ68B and RQ612B for MELSEC-Q modules.
• I/O modules: RX40C7, RX41C4, RX42C4, RX10 and RX28 input; RY40NT5P, RY41NT2P, RY40PT5P, RY10R2 and RY20S6 output; RH42C4NT2P combined I/O.
• Analog and temperature: R60AD4, R60ADH4, R60AD8-G, R60AD16-G, R60DA4, R60DAH4, R60DA8-G, R60TD8-G, R60RD8-G and R60TCRT4.
• Motion and positioning: RD78G4 to RD78G64, RD78GHV and RD78GHW; RD77MS2 to RD77MS16; RD75P2, RD75P4, RD75D2 and RD75D4.
• High-speed counters: RD62P2, RD62P2E, RD62D2, RD60P8-G and RD40PD01.
• Network modules: RJ71GN11-T2, RJ71GN11-EIP, RJ71GF11-T2, RJ72GF15-T2, RJ71GP21-SX, RJ61BT11, RJ71EIP91, RJ71PN92, RJ71PB91V, RJ71DN91, RJ51AW12AL, RJ71BAC96, RJ71EN71 and RJ71C24.
• Information modules: RD81MES96N, RD81OPC96, RD81DL96, RD81DC96 and RD81RC96.

Migrating from MELSEC-Q

RQ extension bases let you reuse existing MELSEC-Q modules when you move to MELSEC iQ-R, but CPU migration still needs project conversion and a check of each manual.

Planning an iQ-R system or moving from MELSEC-Q? Contact TKK for model selection and migration advice.