R120CPU
MELSEC iQ-R Series CPU
Programmable Controller CPU Modules
At the core of the MELSEC iQ-R Series is a programmable controller CPU. This CPU is the heart of the control system and includes various features for different applications. The most common CPU is the programmable controller CPU, into which various features are embedded, enabling it to perform a wide range of control tasks. The different CPUs are highly scalable with five types available, based on program capacity needs (10K to 1200K steps). In addition, a CC-Link IE embedded CPU is available, further reducing hardware costs as a separate network module is not required.
Programmable controller CPU module specifications
| Item | R00CPU | R01CPU | R02CPU | R04CPU R04ENCPU |
R08CPU R08ENCPU |
R16CPU R16ENCPU |
R32CPU R32ENCPU |
R120CPU R120ENCPU |
|---|---|---|---|---|---|---|---|---|
| Control method | Stored program cyclic operation | |||||||
| I/O control mode | Refresh mode (Direct access I/O is available by specifying direct access I/O (DX, DY)) | |||||||
| Programming language | Ladder diagram (LD), structured text (ST), function block diagram (FBD), sequential function chart (SFC) |
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| Extended programming language | Function block (FB), label programming (system/local/global) | |||||||
| Program execution type | Initial, scan, fixed scan, interrupt, standby | |||||||
| Number of I/O points [X/Y] (point) | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 |
| Constant scan (ms) (Function for keeping regular scan time) |
0.5…2000 (Setting available in 0.1 ms increments) |
0.2…2000 (Setting available in 0.1 ms increments) |
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| Memory capacity | ||||||||
| Program capacity (step) | 10K | 15K | 20K | 40K | 80K | 160K | 320K | 1200K |
| Program memory (byte) | 40K | 60K | 80K | 160K | 320K | 640K | 1280K | 4800K |
| Device/label memory*6 (byte) | 252K | 252K | 252K | 400K | 1188K | 1720K | 2316K | 3380K |
| Data memory (byte) | 1.5M | 1.5M | 1.5M | 2M | 5M | 10M | 20M | 40M |
| Instruction processing time | ||||||||
| LD instruction (ns) | 31.36 | 31.36 | 3.92 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 |
| MOV instruction (ns) | 62.72 | 62.72 | 7.84 | 1.96 | 1.96 | 1.96 | 1.96 | 1.96 |
| E + instruction (floating-point addition) (ns) | 100.0 | 100.0 | 17.6 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 |
| Structured text IF instruction*7 (ns) | 31.36 | 31.36 | 3.92 | 1.96 | 1.96 | 1.96 | 1.96 | 1.96 |
| Structured text FOR instruction*7 (ns) | 31.36 | 31.36 | 3.92 | 1.96 | 1.96 | 1.96 | 1.96 | 1.96 |
| PC MIX value*8 (instructions/µs) | 19 | 19 | 146 | 419 | 419 | 419 | 419 | 419 |
| Interface connection port | ||||||||
| High Speed USB2.0 (miniB) | ● | ● | ● | ● | ● | ● | ● | ● |
| Ethernet (100BASE-TX/10BASE-T) | ● | ● | ● | ● | ● | ● | ● | ● |
| CC-Link IE connection port | ||||||||
| Ethernet (1000BASE-T/100BASE-TX/10BASE-T) |
— | — | — | ●*9 *10 | ●*9 *10 | ●*9 *10 | ●*9 *10 | ●*9 *10 |
| CC-Link IE Field Network Basic connection port | ||||||||
| Ethernet (100BASE-TX/10BASE-T) |
● | ● | ● | ● | ● | ● | ● | ● |
| Memory interface | ||||||||
| SD memory card | — | ● | ● | ● | ● | ● | ● | ● |
| Extended SRAM cassette | — | — | — | ● | ● | ● | ● | ● |
| Function | ||||||||
| Multiple interrupt | ● | ● | ● | ● | ● | ● | ● | ● |
| Standard PID control | ● | ● | ● | ● | ● | ● | ● | ● |
| Internal database | — | — | — | ● | ● | ● | ● | ● |
| Memory dump | — | ● | ● | ● | ● | ● | ● | ● |
| Data logging | — | ●*11 | ●*11 | ● | ● | ● | ● | ● |
| Real-time monitor | ● | ● | ● | ● | ● | ● | ● | ● |
| Security | ● | ● | ● | ● | ● | ● | ● | ● |
| Inter-modular synchronization | ● | ● | ● | ● | ● | ● | ● | ● |
| SLMP communication | ● | ● | ● | ● | ● | ● | ● | ● |
| Firmware update*12 | — | ● | ● | ● | ● | ● | ● | ● |
*6: Extended SRAM cassette expands the device/label memory area.
*7: The IF or FOR sentence of the structured text consists of several instructions, which may increase the processing time period.
*8: Average number of instructions such as for basic instructions and data processing executed in 1 µs. The larger the value, the faster the processing speed.
*9: Available with R□ENCPU. For details about network specifications, refer to the RJ71EN71 performance specifications.
*10: The following networks are supported, Ethernet, CC-Link IE Control (twisted pair cable), and CC-Link IE Field (two simultaneous Ethernet networks and combined CC-Link IE Field and CC-Link IE Control networks are not supported).
*11: Logging data can be saved in the SD memory card only.
*12: Depends on supported CPU firmware version, for more information please refer to the related product manual.
*7: The IF or FOR sentence of the structured text consists of several instructions, which may increase the processing time period.
*8: Average number of instructions such as for basic instructions and data processing executed in 1 µs. The larger the value, the faster the processing speed.
*9: Available with R□ENCPU. For details about network specifications, refer to the RJ71EN71 performance specifications.
*10: The following networks are supported, Ethernet, CC-Link IE Control (twisted pair cable), and CC-Link IE Field (two simultaneous Ethernet networks and combined CC-Link IE Field and CC-Link IE Control networks are not supported).
*11: Logging data can be saved in the SD memory card only.
*12: Depends on supported CPU firmware version, for more information please refer to the related product manual.
SD memory card*13 specifications
| Item | NZ1MEM-2GBSD | NZ1MEM-4GBSD | NZ1MEM-8GBSD | NZ1MEM-16GBSD |
|---|---|---|---|---|
| Type | SD memory card | SDHC memory card | SDHC memory card | SDHC memory card |
| Capacity (byte) | 2G | 4G | 8G | 16G |
*13: SD memory card is not supported for the R00CPU.
Extended SRAM cassette specifications
| Item | NZ2MC-1MBS | NZ2MC-2MBS | NZ2MC-4MBS | NZ2MC-8MBS | NZ2MC-8MBSE | NZ2MC-16MBS |
|---|---|---|---|---|---|---|
| Capacity (byte) | 1M | 2M | 4M | 8M | 8M | 16M |
| Supported CPU modules | ||||||
| Programmable controller CPU*14 | ● | ● | ● | ● | — | ● |
| Process CPU | — | — | — | — | ● | — |
| SIL2 process CPU | — | — | — | — | ● | — |
| Safety CPU | ● | ● | ● | ● | ● | — |
*14: Not supported for R00CPU, R01CPU, R02CPU.
Battery-less option cassette*15
| Item | NZ1BLC |
|---|---|
| Type | Option cassette |
*15: Supported for R04(EN)CPU, R08(EN)CPU, R16(EN)CPU, R32(EN)CPU, R120(EN)CPU.
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