CJ2M-CPU34

Omron

Omron CJ2M-CPU34 CJ2M Series CPU Unit with Built-in EtherNet/IP

SKU CJ2M-CPU34

Disponibile
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Omron
  • Product No.: CJ2M-CPU34
  • Origin Japan
  • Product Type: PLC CPU Modules
  • Payment: T/T, Western Union
  • Weight: 0.19 kg
  • Dimensions: 90 mm x 75 mm x 62 mm
  • Shipping port: Xiamen
  • Warranty: 12 months

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CJ2M PLC CPU Modules
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Product Description

Description

To deliver high-speed logic execution and integrated factory network communications, the Omron CJ2M-CPU34 functions as a core processing module within the modular CJ2M Series PLC architecture. Engineered for high-speed industrial automation, this CPU supports 30K steps of program memory and up to 160K words of data memory. It features an integrated EtherNet/IP port alongside a dedicated USB programming port, eliminating the need for specialized external communication adapters. Its exceptionally fast 0.04 us LD instruction execution speed makes it highly suitable for demanding motion, packaging, and process sequencing tasks.

Key Features

  • High-Speed Processing: Logic execution speed of 0.04 us for basic instructions and 0.06 us for double-precision instructions.
  • Integrated Communication: Built-in EtherNet/IP port for seamless tag data links, message communications, and FINS TCP/IP connections.
  • Expandable Architecture: Supports up to 2,560 local digital I/O points and up to 40 I/O modules across 3 expansion racks.
  • Flexible Memory Allocations: 30K steps program capacity and 160K words of data memory, featuring DM and multiple EM banks.
  • Direct Programming Access: Standard high-speed USB 2.0 peripheral port on the front panel for rapid software monitoring and updates.

Applications

  • Packaging and Labeling: Synchronized operations with multi-station control and high-speed registration.
  • Material Handling: Distributed sorting conveyor networks, automated storage and retrieval systems (AS/RS).
  • Assembly and Testing: Precision electronic assembly machines, pick-and-place stations, and diagnostic instrumentation.
  • Process Control Integration: Remote telemetry, environmental monitoring, and factory-wide SCADA data aggregation.

Technical Specifications

Manufacturer Omron
Model CJ2M-CPU34
Series CJ2M (Built-in EtherNet/IP) CPU Units
Program Capacity 30K steps
Data Memory Capacity 160K words (DM: 32K words, EM: 32K words x 4 banks)
LD Instruction Execution Time 0.04 us
Max Local I/O Points 2,560 points
Mountable Units (Expansion Racks) 40 Units (Maximum 3 Expansion Racks)
Current Consumption (5 VDC) 0.7 A
Interfaces EtherNet/IP (RJ45), USB (Type-B), Option Board Slot
CPU Unit Dimensions 90 mm x 75 mm x 62 mm
Weight 0.19 kg
Shipping Weight (Calculated) 1.50 kg

Connections and Interfaces

Port / Connector Function / Cable Specification
EtherNet/IP Port RJ45, 100Base-TX/10Base-T. Supports Tag Data Links, FINS messages, and FTP server functions.
USB Port USB 2.0 Type-B connection. High-speed engineering connection for CX-Programmer upload/download.
Serial Option Slot Accepts optional RS-232C (CP1W-CIF01) or RS-422A/485 (CP1W-CIF11/CIF12-V1) serial option boards.

Empirical Engineering Insights

Alternative Models & Compatibility

The CJ2M-CPU34 is a direct fit-form-function replacement for legacy CJ1M-series installations, offering greater execution speed and native EtherNet/IP capabilities. Programs from CJ1M platforms can be systematically imported using CX-Programmer, though variables allocated to specific legacy registers should be verified against the extended EM banks of the CJ2M.

Application Pitfalls & Engineering Notes

While the integrated EtherNet/IP port supports heavy traffic, the internal processor prioritizes logic execution over network task allocation. High tag data link rates (over 3200 PPS cumulative) can lead to microsecond fluctuations in task cycle times. If high cyclic network throughput is expected alongside intense floating-point math, segmenting communications onto a dedicated CJ1W-EIP21 module is highly recommended.

Commissioning & Wiring Tips

The node address of the integrated EtherNet/IP interface is assigned via physical rotary switches located on the front panel of the CPU. If the IP address does not resolve, check that these hardware switch settings correspond directly to the host portion of the network IP configuration. Always run Ethernet cables distinct from high-voltage AC motor lines to avoid physical layer noise disruption.

Installation Guidelines

CRITICAL WARNING: De-energize all primary and secondary power distribution systems connected to the CJ-series backplane before inserting or removing the CPU unit. Working on energized backplanes can cause memory corruption, damage internal components, or lead to unexpected plant machinery operation.
1
Align the hooks on the back of the CPU unit with the DIN rail structure and carefully slide the module into position next to the power supply unit.
2
Engage the yellow slider locking clips on both the top and bottom of the unit to lock the assembly firmly to the adjacent modules on the rack.
3
Secure the end plate at the final slot of the assembly to prevent physical lateral drift along the DIN rail.
4
Connect the shielded Ethernet cable (Cat5e or Cat6) to the RJ45 jack and verify the network indicator lamps light up on power-up initialization.
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What is the maximum Tag Data Link capacity for the CJ2M-CPU34 built-in EtherNet/IP port?
The built-in EtherNet/IP port on the CJ2M-CPU34 supports up to 3200 PPS (packets per second) for cyclic communication. The maximum number of connection links is 32.
Can I program the CJ2M-CPU34 without a dedicated programming cable?
Yes, the CJ2M-CPU34 features a built-in peripheral USB port (Type-B) that allows direct programming and monitoring via a standard USB-A to USB-B cable using CX-Programmer.
How do I configure the FINS node address for EtherNet/IP communications?
The FINS node address is set via the rotary switches on the front panel of the CPU unit. Ensure the rotary switch value aligns with the host IP address configuration for proper routing.
Reviews

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CJ2M-CPU34

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Omron CJ2M-CPU34 CJ2M Series CPU Unit with Built-in EtherNet/IP

Only 2 item(s) left in stock

  • Manufacturer: Omron

  • Product No.: CJ2M-CPU34

  • Country of origin:Japan

  • Product Type: PLC CPU Modules

  • Payment: T/T, Western Union

  • Weight: 190g

  • Dimensions: 90 mm x 75 mm x 62 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Description
FAQ
Shipping Returns
Additional details
Reviews

Description

To deliver high-speed logic execution and integrated factory network communications, the Omron CJ2M-CPU34 functions as a core processing module within the modular CJ2M Series PLC architecture. Engineered for high-speed industrial automation, this CPU supports 30K steps of program memory and up to 160K words of data memory. It features an integrated EtherNet/IP port alongside a dedicated USB programming port, eliminating the need for specialized external communication adapters. Its exceptionally fast 0.04 us LD instruction execution speed makes it highly suitable for demanding motion, packaging, and process sequencing tasks.

Key Features

  • High-Speed Processing: Logic execution speed of 0.04 us for basic instructions and 0.06 us for double-precision instructions.
  • Integrated Communication: Built-in EtherNet/IP port for seamless tag data links, message communications, and FINS TCP/IP connections.
  • Expandable Architecture: Supports up to 2,560 local digital I/O points and up to 40 I/O modules across 3 expansion racks.
  • Flexible Memory Allocations: 30K steps program capacity and 160K words of data memory, featuring DM and multiple EM banks.
  • Direct Programming Access: Standard high-speed USB 2.0 peripheral port on the front panel for rapid software monitoring and updates.

Applications

  • Packaging and Labeling: Synchronized operations with multi-station control and high-speed registration.
  • Material Handling: Distributed sorting conveyor networks, automated storage and retrieval systems (AS/RS).
  • Assembly and Testing: Precision electronic assembly machines, pick-and-place stations, and diagnostic instrumentation.
  • Process Control Integration: Remote telemetry, environmental monitoring, and factory-wide SCADA data aggregation.

Technical Specifications

Manufacturer Omron
Model CJ2M-CPU34
Series CJ2M (Built-in EtherNet/IP) CPU Units
Program Capacity 30K steps
Data Memory Capacity 160K words (DM: 32K words, EM: 32K words x 4 banks)
LD Instruction Execution Time 0.04 us
Max Local I/O Points 2,560 points
Mountable Units (Expansion Racks) 40 Units (Maximum 3 Expansion Racks)
Current Consumption (5 VDC) 0.7 A
Interfaces EtherNet/IP (RJ45), USB (Type-B), Option Board Slot
CPU Unit Dimensions 90 mm x 75 mm x 62 mm
Weight 0.19 kg
Shipping Weight (Calculated) 1.50 kg

Connections and Interfaces

Port / Connector Function / Cable Specification
EtherNet/IP Port RJ45, 100Base-TX/10Base-T. Supports Tag Data Links, FINS messages, and FTP server functions.
USB Port USB 2.0 Type-B connection. High-speed engineering connection for CX-Programmer upload/download.
Serial Option Slot Accepts optional RS-232C (CP1W-CIF01) or RS-422A/485 (CP1W-CIF11/CIF12-V1) serial option boards.

Empirical Engineering Insights

Alternative Models & Compatibility

The CJ2M-CPU34 is a direct fit-form-function replacement for legacy CJ1M-series installations, offering greater execution speed and native EtherNet/IP capabilities. Programs from CJ1M platforms can be systematically imported using CX-Programmer, though variables allocated to specific legacy registers should be verified against the extended EM banks of the CJ2M.

Application Pitfalls & Engineering Notes

While the integrated EtherNet/IP port supports heavy traffic, the internal processor prioritizes logic execution over network task allocation. High tag data link rates (over 3200 PPS cumulative) can lead to microsecond fluctuations in task cycle times. If high cyclic network throughput is expected alongside intense floating-point math, segmenting communications onto a dedicated CJ1W-EIP21 module is highly recommended.

Commissioning & Wiring Tips

The node address of the integrated EtherNet/IP interface is assigned via physical rotary switches located on the front panel of the CPU. If the IP address does not resolve, check that these hardware switch settings correspond directly to the host portion of the network IP configuration. Always run Ethernet cables distinct from high-voltage AC motor lines to avoid physical layer noise disruption.

Installation Guidelines

CRITICAL WARNING: De-energize all primary and secondary power distribution systems connected to the CJ-series backplane before inserting or removing the CPU unit. Working on energized backplanes can cause memory corruption, damage internal components, or lead to unexpected plant machinery operation.
1
Align the hooks on the back of the CPU unit with the DIN rail structure and carefully slide the module into position next to the power supply unit.
2
Engage the yellow slider locking clips on both the top and bottom of the unit to lock the assembly firmly to the adjacent modules on the rack.
3
Secure the end plate at the final slot of the assembly to prevent physical lateral drift along the DIN rail.
4
Connect the shielded Ethernet cable (Cat5e or Cat6) to the RJ45 jack and verify the network indicator lamps light up on power-up initialization.
Key Features:
#CJ2M #PLC CPU Modules

What is the maximum Tag Data Link capacity for the CJ2M-CPU34 built-in EtherNet/IP port?
The built-in EtherNet/IP port on the CJ2M-CPU34 supports up to 3200 PPS (packets per second) for cyclic communication. The maximum number of connection links is 32.

Can I program the CJ2M-CPU34 without a dedicated programming cable?
Yes, the CJ2M-CPU34 features a built-in peripheral USB port (Type-B) that allows direct programming and monitoring via a standard USB-A to USB-B cable using CX-Programmer.

How do I configure the FINS node address for EtherNet/IP communications?
The FINS node address is set via the rotary switches on the front panel of the CPU unit. Ensure the rotary switch value aligns with the host IP address configuration for proper routing.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Japan

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