Fully Operational with Expanded Resources Click for the latest on how KEYENCE is continuing to support our customers with quick delivery, off-site testing, virtual demos and more.
  1. Home
  2. Products
  3. Controls
  4. PLC(Building-block/ Modular/ High Speed type)
  5. Programmable Controller
  6. Models
  7. CPU unit with built-in serial port

Programmable ControllerKV-5000/3000 series

CPU unit with built-in serial port


[Discontinued model]

This model has been discontinued.

Compliance with the certification standard is ensured as of the time of shipment from our company.

To contact us:


Select Language




CPU Unit

Performance specifications

Arithmetic control mode

Stored program mode

I/O control mode

Refresh mode

Program language

Expanded ladder, KV Script, mnemonic

Number of commands

Basic instruction: 68 classes, 151 instructions
Applied instruction: 35 classes, 36 instructions
Arithmetic operation instruction: 83 classes, 185 instructions
Extended instruction: 74 classes, 106 instructions
Total: 260 classes, 478 instructions

Instruction execution speed

Basic instruction: Min. 25 ns
Applied instruction: Min. 25 ns

Program capacity

Approx. 160k steps

Maximum number of units to be installed

16 units (48 units when expansion units are connected)

Maximum number of I/O points

Maximum 3,096 points for expansion (KV-EB1S/KV-EB1R: When 2 units are expanded, 64-point I/O unit is used)

Bit device

Input relay R

Total 9536 points 1 bit

Output relay R

Internal auxiliary relay R

Internal auxiliary relay MR

16,000 points 1 bit

Latch relay LR

Control relay CR

640 points 1 bit

Word device

Timer T

Total 4000 points 32 bits

Counter C

Data memory DM

65,535 points 16 bits

Expansion data memory EM

Expansion data memory FM

32,767 points 16 bits

Temporary data memory TM

512 points 16 bits

High-speed counter CTH

2 points 32 bits

4 points 32 bits (2 points for one high-speed counter)

Index register Z

12 points 16 bits

Control memory CM

11,999 points 16 bits

Positioning pulse output

2 points (maximum output frequency: 100 kHz)

CPU unit I/O

Input: 16 points, output: 8 points

Power failure hold function

Program memory

Flash ROM can be rewritten 100,000 times


5 years (operating ambient temperature of 25°C in the power failure hold mode)*1

Self-diagnosis function

CPU abnormal, RAM abnormal, other

General specifications

Supply voltage

24 VDC (±10 %)

Operating ambient temperature

0 to +50 °C (No freezing)*2*3

Operating ambient humidity

35 to 85 % RH (No condensation)*2

Storage ambient temperature

-20 to +70 °C*2

Operating atmosphere

No dust or corrosive gas

Operating altitude

2,000 m or less

Pollution degree


Noise immunity

1,500 Vp-p or more, Pulse width: 1 µs, 50 ns (based on a noise simulator), IEC standard-compliant (IEC61000-4-2/3/4/6)

Withstand voltage

1,500 VAC for one minute (between the power terminals and the I/O terminals, and between the external terminals and the housing)

Insulation resistor

50 MΩ or more (measured between power terminals and I/O terminals, and between external terminals and the housing with 500 VDC megohmmeter)

Vibration resistance

Intermittent vibration

Frequency 10 to 57 Hz

Half amplitude: 0.075 mm*4

Frequency 57 to 150 Hz

Acceleration: 9.8 m/s2*4

Continuous vibration

Frequency 10 to 11 Hz

Half amplitude: 0.035 mm*4

Frequency 57 to 150 Hz

Acceleration: 4.9 m/s2*4

Impact resistance

Acceleration 150 m/s2, Operation time 11 ms, twice in each of the X, Y and Z directions

Overvoltage category

II (when using KV-U7)

Internal current consumption

CPU unit: 320 mA or less
Expansion unit: KV-EB1S 15 mA or less, KV-EB1R 25 mA or less (except the drive current for input loop)


CPU unit: approx. 290 g
End unit: Approx. 30 g, Start unit for KV-1000/700: approx. 30 g
Expansion unit: KV-EB1S approx. 90 g, KV-EB1R approx. 115 g

*1 Target device: R/LR/CR/T/C/DM/EM/FM/CTH/CTC/CM
*2 Guaranteed range in which the system can be used.
*3 Specified according to the temperature in the control panel on the lower side of the unit.
*4 JIS B 3502 Compliant with IEC61131-2, Number of scanning operations: 10 times in each of the X, Y, and Z directions (for 100 min.)

  • PLC/HMI User Support
  • Trade Shows and Exhibitions
  • eNews Subscribe