{"product_id":"omron-cj2h-cpu68-cj2h-series-plc-cpu-module","title":"Omron CJ2H-CPU68 CJ2H Series PLC CPU Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered for high-speed, high-capacity machine control, the Omron CJ2H-CPU68 central processing unit serves as the core processor for CJ2-series programmable logic controllers. This unit manages complex automation tasks with a large \u003cstrong\u003e400K step user memory\u003c\/strong\u003e and a highly optimized execution cycle. Designed for panel-mounted environments, it delivers exceptional operational speed with basic instruction times as low as \u003cstrong\u003e0.016 us\u003c\/strong\u003e. The integrated memory architectures support extensive function block definitions, automatic address allocations, and broad data logging capabilities via optional memory cards, making it a reliable standard for demanding industrial processing architectures.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Execution:\u003c\/strong\u003e Basic instruction execution at 0.016 us minimum and special instructions at 0.048 us minimum.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMassive Memory Capacity:\u003c\/strong\u003e Features 400K steps of program memory to accommodate complex logic and large program structures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Data Allocations:\u003c\/strong\u003e Access to EM Area force-setting\/resetting across Banks 0 to 18 hex, with automatic address allocation on Banks 11 to 18 hex.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtensive I\/O Architecture:\u003c\/strong\u003e Supports up to 2560 logical I\/O bits to handle extensive fieldbus and physical digital\/analog point systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Task Management:\u003c\/strong\u003e Accommodates up to 128 cyclic task flags and supports up to 2048 function block definitions and instances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHigh-speed packaging and sorting machinery.\u003c\/li\u003e\n  \u003cli\u003eMulti-axis coordinated motion control systems.\u003c\/li\u003e\n  \u003cli\u003eAutomotive assembly line PLC networks.\u003c\/li\u003e\n  \u003cli\u003eProcess instrumentation control panels requiring fast scan times.\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    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCJ2H-CPU68\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCJ2 Family \/ CJ2H\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eEnclosure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMounted in a panel\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eGrounding Requirement\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eLess than 100 Ohms\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCurrent Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.42 A at 5 VDC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eUser Program Memory\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e400K steps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eI\/O Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2560 bits\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOverhead Processing Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e100 us\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eBasic Instruction Execution\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.016 us minimum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSpecial Instruction Execution\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.048 us minimum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eEM Area Force-Set\/Reset\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBanks 0 - 18 hex\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eAutomatic Address Allocation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBanks 11 - 18 hex\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCyclic Task Flags\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e128 flags\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMemory Card Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e128 MB, 256 MB, or 512 MB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eFunction Block Definitions\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2048 maximum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eFunction Block Instances\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2048 maximum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCommunications Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eHalf-duplex, Start-stop synchronization\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eBaud Rate Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.3 to 115.2 kbps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMaximum Serial Distance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e15 meters max\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePhysical Dimensions\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e6.5 cm x 4.9 cm x 9.0 cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.2 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2.0 kg\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\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen migrating legacy systems from the CJ1 series (e.g., CJ1H or CJ1G) to the CJ2H architecture, the physical footprint remains highly compatible, but memory map allocations require verification in CX-Programmer. The CJ2H series utilizes an expanded Extended Memory (EM) bank structure up to 18 hex, which is significantly larger than previous generations. Ensure that peripheral tool versions are updated to support the CJ2H instruction set to prevent compilation errors during download.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eA common point of failure in high-speed applications is over-allocating force-set\/reset memory flags in non-designated EM banks. In this unit, ensure that force-setting\/resetting operations remain confined to Banks 0 through 18 hex, and that automatic memory allocations do not overwrite manual configurations in Banks 11 through 18 hex. Also, monitor the 100 us overhead processing time; when executing massive functional block nesting (up to the 2048 limit), scan times can lengthen if execution paths are not carefully structured.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eFor reliable communication performance, functional grounding must be strictly verified. The grounding path must maintain a resistance of less than 100 Ohms to mitigate high-frequency electrical noise from nearby variable frequency drives (VFDs). When utilizing the built-in serial communication port at higher baud rates (such as 115.2 kbps), use double-shielded twisted-pair cabling and do not exceed the 15-meter maximum distance limit to avoid transmission errors.\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 Prior to mounting or wiring the CPU module, disconnect all external power supplies to the rack. Failure to completely de-energize the system may cause electrical shock, physical damage to the internal CMOS circuitry of the module, or unpredictable system behaviors.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eAlign the lock claws on the upper and lower portions of the CPU module with the adjacent power supply module on the CJ-series backplane.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eCarefully press the module straight onto the bus connector until it clicks securely into place, ensuring no pins are bent.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eSlide the yellow lock levers on the top and bottom of the module forward to lock the unit securely to the backplane.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect the functional ground terminal to a dedicated ground point keeping the impedance strictly under 100 Ohms.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077920973163,"sku":"CJ2H-CPU68","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/cj2h-cpu68-zmuhcezwiof.png?v=1775733557","url":"https:\/\/www.plcprotech.com\/products\/omron-cj2h-cpu68-cj2h-series-plc-cpu-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}