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Product Code: CNTR-026
MPN #: R16PCPU
Looking for a controller that can keep your factory line running without surprise stops? The Mitsubishi MELSEC iQ R Series R16PCPU PLC CPU Module is a compact brain that runs your machines, conveyors and robots. When a PLC is slow or lacks enough I/O, production slows down and costs rise. This module gives you speed, memory and connectivity so you can avoid those costly delays.
Many small to medium factories struggle with outdated controllers that cannot handle modern sensor loads. The result is missed alarms, data loss and wasted time. This problem matters because every minute of downtime hurts profit and reputation. The R16PCPU solves it by offering 4096 I/O points, fast LD instruction speed and built-in Ethernet, so you can collect data and react in real time.
The module fits well in assembly lines that need precise timing, such as packaging machines that count items and control packers. It works in water treatment plants where many sensors monitor flow, pressure and quality. It also powers robotic cells that require fast communication between axes. Any system that demands reliable cyclic operation and easy network access can benefit from this PLC.
| Hardware specifications | |
| 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 |
| MOV instruction | 1.96 ns |
| Instruction processing time (structured text) | |
| IF | 1.96 ns |
| CASE | 1.96 ns |
| FOR | 1.96 ns |
| Memory capacity | |
| Program capacity | 160K steps (640K bytes) |
| Program memory | 640K bytes |
| SD memory card |
Differs depending on the SD memory card used. (SD/SDHC memory card: 32G bytes maximum) |
| Device/label memory | 1720K bytes |
| Signal flow memory | |
| Area for programs | 20K bytes |
| Area for function blocks | 256K bytes |
| Data memory | 10M bytes |
| CPU buffer memory |
1072K bytes (536K words) (including the fixed scan communication area (24K words)) |
| Refresh memory | 2048K bytes |
| Maximum number of storable files | |
| Program memory | 252 |
| Device/label memory (file storage area) | 324 (with or without an extended SRAM cassette) |
| Data memory | 512 |
| SD memory card |
• NZ1MEM-2GBSD: 256 • NZ1MEM-4GBSD, NZ1MEM-8GBSD, NZ1MEM-16GBSD: 32767 |
| Number of storable folders | |
| Data memory | 512 |
| 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 |
| Allowable momentary power failure time | The time differs depending on the power supply module used. |
| Internal current consumption (5 V DC) | 0.76 A |
| External dimensions | |
| Height | 106 mm (base unit mounting side: 98 mm) |
| Width | 27.8 mm |
| Depth | 110 mm |
| Weight | 0.20 kg |
| Programming specifications | |
| 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 |
Initial execution type, scan execution type, fixed scan execution type, event execution type, standby type |
| Type of interrupt |
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) |
| Cyclic interrupt | 0.5...1000 ms (in 0.5 ms increments) |
| Interrupt using the internal timer (I28...I31) | 0.05...1000 ms (in 0.05 ms increments) |
| High-speed internal timer interrupt 1 (I49) | 0.05...1000 ms (in 0.05 ms increments) |
| High-speed internal timer interrupt 2 (I48) | 0.1...10.00 ms (in 0.05 ms increments) |
| Inter-module synchronous interrupt (I44) | 0.1...10.00 ms (in 0.05 ms increments) |
| Multiple CPU synchronous interrupt (I45) | 1...1000 ms (Default: 100 ms) |
| Timer performance | |
| Low-speed timer | 0.01...100 ms (Default: 10 ms) |
| High-speed timer | 0.001...1000 ms (Default: 0.001 ms) |
| Long timer | 4096 points |
| Number of I/O points | 12288 points (fixed) |
| Number of user device points | |
| Input (X) | 12288 points (fixed) |
| Output (Y) | 12288 points (user-changeable) |
| Internal relay (M) | 8192 points (user-changeable) |
| Latch relay (L) | 8192 points (user-changeable) |
| Link relay (B) | 2048 points (user-changeable) |
| Link special relay (SB) | 2048 points (user-changeable) |
| Annunciator (F) | 2048 points (user-changeable) |
| Edge relay (V) | 0 points (user-changeable) |
| Step relay (S) | 1024 points (user-changeable) |
| Timer device | |
| Timer (T) | 1024 points (user-changeable) |
| Long timer (LT) | 0 points (user-changeable) |
| Retentive timer device | |
| Retentive timer (ST) | 0 points (user-changeable) |
| Long retentive timer (LST) | 512 points (user-changeable) |
| Counter device | |
| Counter (C) | 512 points (user-changeable) |
| Long counter (LC) | 18432 points (user-changeable) |
| Data register (D) | 8192 points (user-changeable) |
| Link register (W) | 2048 points (user-changeable) |
| Link special register (SW) | 4096 points (fixed) |
| Number of system device points | |
| Special relay (SM) | 4096 points (fixed) |
| Special register (SD) | 16 points (fixed) |
| Function input (FX) | 16 points (fixed) |
| Function output (FY) | 5 points × 4 words (fixed) |
| Function register (FD) | 0 points (user-changeable) |
| Number of file register points | |
| File register (R/ZR) | 20 points (user-changeable, up to 24 points) |
| Number of index register points | |
| Index register (Z) | 2 points (user-changeable, up to 12 points) |
| Long index register (LZ) | 8192 points (user-changeable, up to 16384 points) |
| Number of pointer points | |
| Pointer (P) (global/local) | 1024 points (fixed) |
| Interrupt pointer (I) | 16384 points maximum |
| Number of link direct device points | |
| Link input (J☐\X☐) | 16384 points maximum |
| Link output (J☐\Y☐) | 32768 points maximum |
| Link relay (J☐\B☐) | 131072 points maximum |
| Link register (J☐\W☐) | 512 points maximum |
| Link special relay (J☐\SB☐) | 512 points maximum |
| Link special register (J☐\SW☐) | 268435456 points maximum |
| Number of module access device points | |
| Intelligent function module device (U☐\G☐) | 524288 points |
| Number of CPU buffer memory access device points | |
| Buffer memory (U3E☐\G☐) | 12288 points maximum |
| Fixed scan communication area in the buffer memory (U3E☐\HG☐) | 524288 points (1048576 points maximum) |
| Number of refresh data register points | |
| Refresh data register (RD) | 15 points |
| Number of nesting points | |
| Nesting (N) | 320 points |
| Number of other device points | |
| SFC block device (BL) | 0 points (Can be used for device comments only) |
| Specifications of the built-in Ethernet function | |
| Transmission specifications | |
| Data transmission speed | 100/10 Mbps |
| Communication mode |
100BASE-TX: Full-duplex/half-duplex 10BASE-T: Full-duplex/half-duplex |
| Interface | RJ45 (AUTO MDI/MDI-X) |
| Transmission method | Base band |
| Maximum frame size | 1518 bytes |
| Jumbo frame | Not available |
| Maximum segment length | 100 m (length between hub and node) |
| IP version | IPv4 |
| Sending/receiving data storage memory |
Number of simultaneously open connections: 16 connections (connections usable on a program) |
| Socket communications | 5K words × 16 |
| General specifications | |
| 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 | |
| Under intermittent vibration |
Frequency: 5...8.4 Hz, Half amplitude: 3.5 mm Frequency: 8.4...150 Hz, Constant acceleration: 9.8 m/s2 Sweep count: 10 times each in X, Y, Z directions |
| Under continuous vibration |
Frequency: 5...8.4 Hz, Half amplitude: 1.75 mm Frequency: 8.4...150 Hz, Constant acceleration: 4.9 m/s2 |
| Shock resistance |
Compliant with JIS B 3502 and IEC 61131-2 (147 m/s2, 3 times each in 3 directions X, Y, Z) |
| 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 |
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