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

Omron CJ2M-CPU34 — front view of the CJ2M CPU3x showing the Omron model label, the RUN / ERROR / INH LED indicators, the seven-segment display, the USB Type-B programming port and the EtherNet/IP RJ45 port along the lower face

Omron CJ2M-CPU34 — CJ2M CPU, 30K Steps, EtherNet/IP

SKU: CJ2M-CPU34

USD 340.00

Omron CJ2M-CPU34 CJ2M CPU with built-in EtherNet/IP, 30K-step program, 64K data memory, option board slot. In stock.

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Product Overview

The Omron CJ2M-CPU34 is the third step in the CJ2M CPU3x lineup, 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.

Program capacity is 30K steps plus 20K steps of function-block memory. Data memory is 64K words, split as 32K words DM plus 32K words EM in one bank. The CPU addresses up to 2560 local I/O across 40 mountable units and three expansion racks. Basic LD instruction execution is 0.04 microseconds. Built-in ports are EtherNet/IP and USB, plus an option board slot for CP1W-CIF01 (RS-232C) or CP1W-CIF11 / CP1W-CIF12-V1 (RS-422A/485).

Current draw is 5 V at 0.7 A. The unit is 90 x 62 x 84.5 mm and weighs 190 g. Programming runs in CX-Programmer. For the same 30K steps without EtherNet/IP, pick the CJ2M-CPU14. For more program, pick the CJ2M-CPU35 (60K steps). Add a CJ2M-MD211 for high-speed counter and pulse outputs.

Key Features

  • CJ2M CPU3x with 30K-step program plus 20K-step function-block memory
  • 64K-word data memory (DM 32K + EM 32K x 1 bank), 0.04 us LD instruction execution
  • Built-in EtherNet/IP and USB ports; option board slot for CP1W-CIF01 / CIF11 / CIF12-V1
  • 2560 I/O points across 40 units and 3 expansion racks, 5 V 0.7 A, 90 x 62 x 84.5 mm, 190 g
  • SKU: CJ2M-CPU34
  • Series: Omron CJ2M-series CPU Unit (CPU3x line, built-in EtherNet/IP)
  • I/O: 2560 points

Best-Fit Applications

  • Mid-size machine cell where the program has filled a CJ2M-CPU33 and the cabinet needs EtherNet/IP plus a CP1W-CIF11 option
  • Spare CPU drop-in for a CJ2M rack where the field bus is EtherNet/IP and the program is in the 20K to 30K range
  • Process cell with a CJ1W-PA205R power supply, a CJ1W-IC101 I/O control unit on the right, and three expansion racks

Buying Checklist

  • Pick the CJ2M-CPU34 for the third step in the CJ2M CPU3x line with 30K steps of program and built-in EtherNet/IP.
  • Pick the CJ2M-CPU32 instead when 10K steps of program is enough and the rest of the spec is the same.
  • Pick the CJ2M-CPU35 instead when 60K steps of program is needed and the cost difference is justified.

Technical Specifications

Manufacturer Omron Corporation (Japan)
Series Omron CJ2M-series CPU Unit (CPU3x line, built-in EtherNet/IP)
Model / SKU CJ2M-CPU34
Program Capacity 30K steps + 20K steps function-block memory
Data Memory 64K words (DM 32K words + EM 32K words x 1 bank)
LD Execution Time 0.04 us (basic instruction)
Local I/O / Mountable Units 2560 points / 40 units / 3 expansion racks
Built-in Communication EtherNet/IP (RJ45) + USB; option board slot for CP1W-CIF01 / CIF11 / CIF12-V1
Current Consumption 5 VDC, 0.7 A
Compatible I/O Family CJ1W-series Basic I/O, Special I/O, and CPU Bus Units
Programming Software CX-Programmer (CX-One suite)
Dimensions / Weight 90 (H) x 62 (W) x 84.5 (D) mm; 190 g

FAQ for CJ2M-CPU34

What is the difference between CJ2M-CPU34 and CJ2M-CPU14?
Both have 30K steps of program. The CPU34 is on the CPU3x line with built-in EtherNet/IP and an option board slot. The CPU14 is on the CPU1x line with RS-232C + USB only and no option board slot.
How much program memory does the CJ2M-CPU34 have?
30K steps of program plus 20K steps of function-block memory for a total of 50K steps. The data memory side is 64K words.
Does the CJ2M-CPU34 support CJ1W expansion I/O?
Yes. Up to three CJ1W expansion racks via a CJ1W-IC101 I/O control unit on the CPU side and CJ1W-II101 interfaces on each expansion rack.
Which power supply pairs with the CJ2M-CPU34?
A CJ1W-PA202 (100-240 VAC, 14 W), CJ1W-PA205R (25 W with RUN output), CJ1W-PD022 (24 VDC, 19.6 W) or CJ1W-PD025 (24 VDC, 25 W).

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