{"product_id":"omron-cj2m-cpu34-cj2m-series-cpu-unit-with-built-in-ethernet-ip","title":"Omron CJ2M-CPU34 CJ2M Series CPU Unit with Built-in EtherNet\/IP","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nTo deliver high-speed logic execution and integrated factory network communications, the \u003cstrong\u003eOmron CJ2M-CPU34\u003c\/strong\u003e functions as a core processing module within the modular \u003cstrong\u003eCJ2M Series PLC\u003c\/strong\u003e architecture. Engineered for high-speed industrial automation, this CPU supports \u003cstrong\u003e30K steps\u003c\/strong\u003e of program memory and up to \u003cstrong\u003e160K words\u003c\/strong\u003e of data memory. It features an integrated \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e port alongside a dedicated USB programming port, eliminating the need for specialized external communication adapters. Its exceptionally fast \u003cstrong\u003e0.04 us\u003c\/strong\u003e LD instruction execution speed makes it highly suitable for demanding motion, packaging, and process sequencing tasks.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Processing:\u003c\/strong\u003e Logic execution speed of 0.04 us for basic instructions and 0.06 us for double-precision instructions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Communication:\u003c\/strong\u003e Built-in EtherNet\/IP port for seamless tag data links, message communications, and FINS TCP\/IP connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpandable Architecture:\u003c\/strong\u003e Supports up to 2,560 local digital I\/O points and up to 40 I\/O modules across 3 expansion racks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Memory Allocations:\u003c\/strong\u003e 30K steps program capacity and 160K words of data memory, featuring DM and multiple EM banks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Programming Access:\u003c\/strong\u003e Standard high-speed USB 2.0 peripheral port on the front panel for rapid software monitoring and updates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging and Labeling:\u003c\/strong\u003e Synchronized operations with multi-station control and high-speed registration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Distributed sorting conveyor networks, automated storage and retrieval systems (AS\/RS).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssembly and Testing:\u003c\/strong\u003e Precision electronic assembly machines, pick-and-place stations, and diagnostic instrumentation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProcess Control Integration:\u003c\/strong\u003e Remote telemetry, environmental monitoring, and factory-wide SCADA data aggregation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold; width: 35%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eModel\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eCJ2M-CPU34\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eCJ2M (Built-in EtherNet\/IP) CPU Units\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eProgram Capacity\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e30K steps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eData Memory Capacity\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e160K words (DM: 32K words, EM: 32K words x 4 banks)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eLD Instruction Execution Time\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e0.04 us\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eMax Local I\/O Points\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e2,560 points\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eMountable Units (Expansion Racks)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e40 Units (Maximum 3 Expansion Racks)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eCurrent Consumption (5 VDC)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e0.7 A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eInterfaces\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eEtherNet\/IP (RJ45), USB (Type-B), Option Board Slot\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eCPU Unit Dimensions\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e90 mm x 75 mm x 62 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eWeight\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e0.19 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e1.50 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #e2e8f0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; width: 30%;\"\u003ePort \/ Connector\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eFunction \/ Cable Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eEtherNet\/IP Port\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eRJ45, 100Base-TX\/10Base-T. Supports Tag Data Links, FINS messages, and FTP server functions.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eUSB Port\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eUSB 2.0 Type-B connection. High-speed engineering connection for CX-Programmer upload\/download.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eSerial Option Slot\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eAccepts optional RS-232C (CP1W-CIF01) or RS-422A\/485 (CP1W-CIF11\/CIF12-V1) serial option boards.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #1a365d; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe 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.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nWhile 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.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe 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.\n\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e 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.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; color: #2d3748;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv\u003eAlign 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.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv\u003eEngage 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.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv\u003eSecure the end plate at the final slot of the assembly to prevent physical lateral drift along the DIN rail.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv\u003eConnect the shielded Ethernet cable (Cat5e or Cat6) to the RJ45 jack and verify the network indicator lamps light up on power-up initialization.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077933031787,"sku":"CJ2M-CPU34","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/cj2m-cpu34-uol3ddfctpw.png?v=1775733566","url":"https:\/\/www.plcprotech.com\/ms\/products\/omron-cj2m-cpu34-cj2m-series-cpu-unit-with-built-in-ethernet-ip","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}