Omron CJ2H-CPU66 PLC CPU Unit

USD 2,049.62

150K-step PLC CPU, 0.016 μs instruction speed, 2,560 I/O bits, 5 VDC 0.42 A, panel-mount, 3 expansion racks.

SKU Omron-CJ2H-CPU66 Category
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Omron CJ2H-CPU66 PLC CPU Unit

Model Identifier CJ2H-CPU66
Official Part Number CJ2H-CPU66
GTIN Standard NA

Technical Overview

CJ-series CPU unit for Omron SYSMAC modular PLC systems. The CJ2H-CPU66 offers 150K-step user memory, 2,560 I/O bits, 0.016 μs basic instruction execution time, and support for up to 40 units per PLC with 3 expansion racks. It is panel-mounted, uses 5 VDC at 0.42 A, and is specified for industrial environments from 0 to 55 °C with IEC 61010-2-201 category II compliance and vibration/shock immunity per IEC 60068. The unit is part of Omron’s high-speed, high-capacity CJ2H family and is distributed through major industrial channels such as Mouser and DigiKey.

Key Features

  • 150K-step user memory
  • 2,560 I/O bits
  • Basic instruction execution time: 0.016 μs min.
  • Special instruction execution time: 0.048 μs min.
  • Supports up to 40 units per PLC
  • Supports up to 3 expansion racks
  • Panel-mounted enclosure
  • 5 VDC, 0.42 A current consumption
  • Operating temperature: 0 to 55 °C
  • Pollution degree 2, overvoltage category II

High-speed modular PLC CPU with 150K-step program capacity and 0.016 μs basic instruction execution time.

Technical Specification Matrix

ParameterValue
CPU Rack Dimensions90 mm × 65 mm × 49 mm (H × D × W)
Weight190 g or less (includes end covers and battery)
Current Consumption5 VDC, 0.42 A
Ambient Operating Temperature0 to 55 °C
Ambient Operating Humidity10% to 90% (with no condensation)
Ambient Storage Temperature-20 to 70 °C (excluding battery)
Altitude2,000 m or less
Pollution Degree2 or less
Noise Immunity2 kV on power supply line
Overvoltage CategoryCategory II
EMC Immunity LevelZone B
Vibration ResistanceConforms to IEC 60068-2-6
Shock ResistanceConforms to IEC 60068-2-27
Battery ModelCJ1W-BAT01
Battery Life5 years at 25 °C
Applicable StandardscULus, NK, LR, EC Directives
User Memory150K steps
I/O Bits2,560 bits
Processing Speed - Overhead Processing TimeNormal Mode: 100 μs
Execution Time - Basic Instructions0.016 μs min.
Execution Time - Special Instructions0.048 μs min.
Maximum Number of Connectable Units10 units max. per CPU rack or expansion rack; 40 units max. per PLC
Maximum Number of Expansion Racks3 max.

Industrial Applications

1. High-speed packaging line sequencing

The 0.016 μs instruction speed and 150K-step memory suit fast conveyor, picker, and reject logic on compact packaging machines.

Problem Solved

Maintains deterministic control for many interlocked stations without overloading PLC scan capacity.

PLChigh-speed controlscan timemodular automationconveyor sequencing

2. Multi-station machine cell control

Up to 40 connectable units and 3 expansion racks support distributed I/O and mixed special-function modules in a single machine cell.

Problem Solved

Reduces controller count while scaling I/O and function blocks across several machine sections.

expansion racksdistributed I/Ospecial I/O unitsmachine cellmodular PLC

3. Industrial equipment in harsh panel environments

Panel-mount construction, 0 to 55 °C operation, and IEC shock/vibration compliance fit enclosed industrial cabinets on factory floors.

Problem Solved

Provides reliable control in vibrating electrical panels with moderate thermal stress and electrical noise.

panel mountIEC 60068-2-6IEC 60068-2-27industrial cabinetEMC immunity
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