Mitsubishi Electric R08CPU

MELSEC iQ-R CPU Module, 80K Steps Program, 4096 I/O

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Maker: Mitsubishi Electric
Part no.: R08CPU
Serial / rev.: as printed on your unit

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Mitsubishi Electric R08CPU is a MELSEC iQ-R CPU module with 80K steps of program, 4096 I/O points and USB and Ethernet ports.

Manufacturer: Mitsubishi Electric
Manufacturer part no.: R08CPU
Product family: Mitsubishi MELSEC iQ-R CPU Modules
Type: MELSEC iQ-R CPU module
Category: PLCs & processors › CPU and processor modules
Lifecycle: Active
OEM successor: Not stated
Technical datasheet: Data sheet

Technical specifications

Manufacturer: Mitsubishi Electric
Manufacturer part no.: R08CPU
Type: MELSEC iQ-R CPU module
Application: PLC controller
Used with: MELSEC iQ-R base units
Operation control method: Stored program cyclic operation
I/O control mode: Refresh mode; (The direct access input/output is available by specifying the direct access input/output (DX, DY).)
Instruction processing time, LD instruction: 0.98 ns
Instruction processing time, MOV instruction: 1.96 ns
Instruction processing time (structured text), IF: 1.96 ns
Instruction processing time (structured text), CASE: 1.96 ns
Instruction processing time (structured text), FOR: 1.96 ns
Memory capacity, Program capacity: 80K steps (320K bytes)
Memory capacity, Program memory: 320K bytes
Memory capacity, SD memory card: Differs depending on the SD memory card used. ; (SD/SDHC memory card: 32G bytes maximum)
Memory capacity, Device/label memory: 1188K bytes
Memory capacity, Signal flow memory, Area for programs: 10K bytes
Memory capacity, Signal flow memory, Area for function blocks: 256K bytes
Memory capacity, Data memory: 5M bytes
Memory capacity, Function memory: 5120K bytes
Memory capacity, CPU buffer memory: 1072K bytes (536K words); (including the fixed scan communication area (24K words))
Memory capacity, Refresh memory: 2048K bytes
Number of storable folders, Data memory: 512
Number of storable folders, Function memory: 512
Number of storable folders, SD memory card: • NZ1MEM-2GBSD: 256; • NZ1MEM-4GBSD, NZ1MEM-8GBSD, NZ1MEM-16GBSD: 32767
USB port: USB2.0 High Speed (miniB)×1
Ethernet port: 10BASE-T/100BASE-TX×1
Clock function: Year, month, date, hour, minute, second, and day of week (automatic leap year adjustment); Accuracy: -1.00...+1.00 s/d at 0...55 ˚C
Backup power, Backup method: Capacitor
Backup power, Backup power time: Three minutes

Show all 116 specifications

Backup power, Data retained: Device/label memory, clock data
Allowable momentary power failure time: The time differs depending on the power supply module used.
Internal current consumption (5 V DC): 0.67 A
External dimensions, Height: 106 mm (base unit mounting side: 98 mm)
External dimensions, Width: 27.8 mm
External dimensions, Depth: 110 mm
Weight: 0.20 kg
Programming language: Ladder diagram (LD), sequential function chart (SFC), structured text (ST), function block diagram (FBD/LD)
Programming supporting function: Function block (FB), label programming (system/local/global)
Program operation, Execution type, Standard program: Initial execution type, scan execution type, fixed scan execution type, event execution type, standby type
Program operation, Type of interrupt, Standard program: Internal timer interrupt (I28 to I31), high-speed internal timer interrupt 1 (I49), high-speed internal timer interrupt 2 (I48), interrupt by modules, inter-module synchronous interrupt (I44), multiple CPU synchronous interrupt (I45)
Number of executable programs, General program: 252
Number of FB files, FB file: 128
Tact performance, Constant scan: 0.2...2000 ms (in 0.1 ms increments)
Tact performance, Cyclic interrupt, Interrupt using the internal timer (I28...I31): 0.5...1000 ms (in 0.5 ms increments)
Tact performance, Cyclic interrupt, High-speed internal timer interrupt 1 (I49): 0.05...1000 ms (in 0.05 ms increments)
Tact performance, Cyclic interrupt, High-speed internal timer interrupt 2 (I48): 0.05...1000 ms (in 0.05 ms increments)
Tact performance, Cyclic interrupt, Inter-module synchronous interrupt (I44): 0.1...10.00 ms (in 0.05 ms increments)
Tact performance, Cyclic interrupt, Multiple CPU synchronous interrupt (I45): 0.1...10.00 ms (in 0.05 ms increments)
Timer performance, Low-speed timer: 1...1000 ms (Default: 100 ms)
Timer performance, High-speed timer: 0.01...100 ms (Default: 10 ms)
Timer performance, Long timer: 0.001...1000 ms (Default: 0.001 ms)
Number of I/O points: 4096 points
Number of user device points, Input (X): 12288 points (fixed)
Number of user device points, Output (Y): 12288 points (fixed)
Number of user device points, Internal relay (M): 12288 points (user-changeable)
Number of user device points, Latch relay (L): 8192 points (user-changeable)
Number of user device points, Link relay (B): 8192 points (user-changeable)
Number of user device points, Link special relay (SB): 2048 points (user-changeable)
Number of user device points, Annunciator (F): 2048 points (user-changeable)
Number of user device points, Edge relay (V): 2048 points (user-changeable)
Number of user device points, Step relay (S): 0 points (user-changeable)
Number of user device points, Timer device, Timer (T): 1024 points (user-changeable)
Number of user device points, Timer device, Long timer (LT): 1024 points (user-changeable)
Number of user device points, Retentive timer device, Retentive timer (ST): 0 points (user-changeable)
Number of user device points, Retentive timer device, Long retentive timer (LST): 0 points (user-changeable)
Number of user device points, Counter device, Counter (C): 512 points (user-changeable)
Number of user device points, Counter device, Long counter (LC): 512 points (user-changeable)
Number of user device points, Data register (D): 18432 points (user-changeable)
Number of user device points, Link register (W): 8192 points (user-changeable)
Number of user device points, Link special register (SW): 2048 points (user-changeable)
Number of system device points, Special relay (SM): 4096 points (fixed)
Number of system device points, Special register (SD): 4096 points (fixed)
Number of system device points, Function input (FX): 16 points (fixed)
Number of system device points, Function output (FY): 16 points (fixed)
Number of system device points, Function register (FD): 5 points × 4 words (fixed)
Number of file register points, File register (R/ZR): 0 points (user-changeable)
Number of index register points, Index register (Z): 20 points (user-changeable, up to 24 points)
Number of index register points, Long index register (LZ): 2 points (user-changeable, up to 12 points)
Number of pointer points, Pointer (P) (global/local): 8192 points (user-changeable, up to 16384 points)
Number of pointer points, Interrupt pointer (I): 1024 points (fixed)
Number of link direct device points, Link input (J☐\X☐): 160K points maximum
Number of link direct device points, Link output (J☐\Y☐): 160K points maximum
Number of link direct device points, Link relay (J☐\B☐): 640K points maximum
Number of link direct device points, Link register (J☐\W☐): 2560K points maximum
Number of link direct device points, Link special relay (J☐\SB☐): 5120 points maximum
Number of link direct device points, Link special register (J☐\SW☐): 5120 points maximum
Number of module access device points, Intelligent function module device (U☐\G☐): 268435456 points maximum
Number of CPU buffer memory access device points, Buffer memory (U3E☐\G☐): 268435456 points maximum
Number of CPU buffer memory access device points, Fixed scan communication area in the buffer memory (U3E☐\HG☐): 12288 points maximum
Number of refresh data register points, Refresh data register (RD): 524288 points (1048576 points maximum)
Number of nesting points, Nesting (N): 15 points
Number of other device points, SFC block device (BL): 320 points
Number of other device points, SFC transition device (TR): 0 points (Can be used for device comments only)
Transmission specifications, Data transmission speed: 100/10 Mbps
Transmission specifications, Communication mode: 100BASE-TX: Full-duplex/half-duplex; 10BASE-T: Full-duplex/half-duplex
Transmission specifications, Interface: RJ45 (AUTO MDI/MDI-X)
Transmission specifications, Transmission method: Base band
Transmission specifications, Maximum frame size: 1518 bytes
Transmission specifications, Jumbo frame: Not available
Transmission specifications, Maximum segment length: 100 m (length between hub and node)
Transmission specifications, IP version: IPv4
Sending/receiving data storage memory, Number of simultaneously open connections: 16 connections (connections usable on a program)
Sending/receiving data storage memory, Socket communications: 5K words × 16
Operating ambient temperature: 0...55 ˚C (When an extended temperature range base unit is not used); 0...60 ˚C (When an extended temperature range base unit is used)
Storage ambient temperature: -25...75 ˚C
Operating ambient humidity: 5...95 %RH, non-condensing
Storage ambient humidity: 5...95 %RH, non-condensing
Vibration resistance, IEC 61131-2: 2007/JIS B 3502: 2011, Under intermittent vibration: Frequency: 5...8.4 Hz, Half amplitude: 3.5 mm; Frequency: 8.4...150 Hz, Constant acceleration: 9.8 m/s 2 ; Sweep count: 10 times each in X, Y, and Z directions
Vibration resistance, IEC 61131-2: 2007/JIS B 3502: 2011, Under continuous vibration: Frequency: 5...8.4 Hz, Half amplitude: 1.75 mm; Frequency: 8.4...150 Hz, Constant acceleration: 4.9 m/s 2
Shock resistance, IEC 61131-2: 2007/JIS B 3502: 2011: Three shocks in each direction per axis, on 3 mutually perpendicular axes (total of 18 shocks)
Operating atmosphere: No corrosive gases, flammable gases, less conductive dust
Operating altitude: 0...2000 m
Installation location: Inside a control panel
Overvoltage category: II or less
Pollution degree: 2 or less

Technical documents (1)

Mitsubishi Electric specification database, R08CPU

Key features

Ethernet: 100/10 Mbps
Current consumption (5 V DC): 0.67 A
Weight: 0.20 kg

About the Mitsubishi Electric R08CPU

The Mitsubishi Electric R08CPU is a MELSEC iQ-R CPU module. Mitsubishi Electric's overview: Number of I/O points: 4096, program capacity: 80K steps, basic operation processing speed (LD X0): 0.98 ns, program memory capacity: 320K bytes, external interface: USB/Ethernet. Mitsubishi Electric lists it as on sale.

What is the R08CPU used for?

The R08CPU runs the control program on a MELSEC iQ-R base unit, working with the I/O, intelligent function and network modules on the base.

Lifecycle and successor

Active.

Before you order

What to photograph or confirm so the right unit is quoted.

Check the model name R08CPU on the rating plate, with the serial number and function version. Send us a photo of the rating plate and we will confirm the details before quoting.

Alternatives for R08CPU

The manufacturer’s named successor and other parts in the same family. None is a drop-in replacement without checking wiring, I/O and configuration for your installation.

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