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Part of the Omron CJ-Series PLCs series — see the full model table, lifecycle status and replacement parts.

Omron CJ2H-CPU64 — front view of the CJ2H CPU unit showing the Omron model label, the RS-232C DB9 port, the USB Type-B programming port, the CJ1W-BAT01 battery holder, the seven RUN / PWR / ERR / BKUP / COMM LED indicators and the top-mounted terminal block cover

Omron CJ2H-CPU64 — CJ2H CPU, 50K Steps, RS-232C+USB

SKU: CJ2H-CPU64

USD 570.00

Omron CJ2H-CPU64 CJ2H CPU, 50K steps, 160K words data, RS-232C + USB. In stock.

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Product Overview

The Omron CJ2H-CPU64 is the base CJ2H-series CPU unit from the SYSMAC CJ platform, manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.

The unit holds 50K steps of program memory and 160K words of data memory (32K DM plus 32K words across 4 EM banks). Logic execution is 0.016 microseconds per LD instruction. The CPU supports 2560 local I/O points and up to 40 expansion units across 3 expansion racks.

Built-in ports are RS-232C and USB. Supply is 5 V at 0.42 A from a CJ1W-PA202 or CJ1W-PD022 power supply on the same rack. The CPU is 48.8 x 90 x 74.5 mm (W x H x D), 190 g, DIN-rail mounted. For built-in EtherNet/IP, move up to the CJ2H-CPU64-EIP. For 100K steps and 160K words DM, pick the CJ2H-CPU66-EIP.

Key Features

  • CJ2H flagship CPU with 50K steps program memory and 160K words data
  • 32K words DM plus 32K words across 4 EM banks, 2560 local I/O points
  • LD execution 0.016 us, up to 40 expansion units across 3 expansion racks
  • Built-in RS-232C + USB, 5 V 0.42 A from a CJ1W-PA202 or CJ1W-PD022 PSU
  • SKU: CJ2H-CPU64
  • Series: Omron CJ2H-series SYSMAC CJ CPU unit
  • I/O: 2560 I/O

Best-Fit Applications

  • Mid-size packaging line where 2560 I/O covers a 3-rack build and the 50K-step program fits the recipe logic
  • Existing CJ2H cell spare CPU drop-in where the previous CJ2H-CPU64 failed and the ladder project is already in CX-Programmer
  • Migration from a CJ1M-CPU21 cell where the extra memory and the 3 expansion racks give room for the next retrofit

Buying Checklist

  • Pick the CJ2H-CPU64 for a 50K-step CJ2H CPU with RS-232C + USB and no built-in EtherNet/IP.
  • Pick the CJ2H-CPU64-EIP instead when the cabinet needs built-in EtherNet/IP on the same 50K steps.
  • Pick the CJ2H-CPU66-EIP instead when the program needs 100K steps and the cabinet needs built-in EtherNet/IP.

Technical Specifications

Manufacturer Omron Corporation (Japan)
Series Omron CJ2H-series SYSMAC CJ CPU unit
Model / SKU CJ2H-CPU64
Program Capacity 50K steps
Data Memory 160K words (32K DM + 32K words x 4 banks EM)
LD Execution Time 0.016 us per basic instruction
I/O Capacity 2560 local points; 40 units across 3 expansion racks
Built-in Ports RS-232C (DB9); USB 2.0 programming
Current Consumption 5 VDC 0.42 A (from rack PSU)
Weight 190 g
Dimensions 48.8 (W) x 90 (H) x 74.5 (D) mm; panel-mount
Compatible PSU CJ1W-PA202 (AC) or CJ1W-PD022 (DC)

Manufacturer documentation

Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.

FAQ for CJ2H-CPU64

Does the CJ2H-CPU64 have built-in EtherNet/IP?
No. The CJ2H-CPU64 base model has RS-232C and USB only. For built-in EtherNet/IP on the same 50K steps, pick the CJ2H-CPU64-EIP. Production of the -EIP variant is planned to end on 2027-03-31.
How much expansion can the CJ2H-CPU64 host?
Up to 40 units across 3 expansion racks for a maximum of 2560 local I/O points. Use the CJ1W-IC101 I/O control unit on the CPU rack and CJ1W-II101 I/O interface units on each expansion rack with CS1W-CN223 or CS1W-CN713 connecting cables.
What power supply does the CJ2H-CPU64 need?
A CJ1W-PA202 (100-240 VAC, 14 W) for an AC cabinet, or a CJ1W-PD022 (24 VDC, 19.6 W) for a DC cabinet. The CPU draws 5 V at 0.42 A from the rack.
Can the CJ2H-CPU64 replace a CJ1M-CPU21?
Yes. The CJ2H-CPU64 accepts CJ1M I/O and Special I/O units on the same rack with a CJ1W-IC101 adapter, and existing CX-Programmer projects convert with no code changes. The CJ2H adds faster LD execution and a much larger program and data memory.

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