{"product_id":"omron-cj1g-cpu45h-cpu-unit-cj1-series","title":"Omron CJ1G-CPU45H CPU Unit CJ1 Series","description":"\u003cp\u003eThe \u003cstrong\u003eOmron CJ1G-CPU45H\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCJ1G-CPU45H\u003c\/strong\u003e CPU Unit, operates as a dedicated hardware component for high-capacity instruction execution and data table processing within Omron CJ1 Automation Systems.\u003c\/p\u003e\n\u003ch3\u003ePart Number Breakdown \u0026amp; Memory Architecture\u003c\/h3\u003e\n\u003cp\u003eThe model number CJ1G-CPU45H designates a high-speed controller in the Omron CJ1 CPU platform. The base prefix \"CJ1G\" indicates high-performance instruction processing and backplane capabilities. The suffix designation \"-CPU45H\" identifies an expanded memory allocation featuring 60 Ksteps of program execution memory alongside 128 Kwords of system data memory (DM: 32 Kwords, EM: 32 Kwords x 3 banks), tailored for I\/O density scaling up to 1280 points.\u003c\/p\u003e\n\u003ch3\u003ePhysical \u0026amp; Performance Parameters\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCJ1G-CPU45H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e160 mm x 130 mm x 90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.91 A at 5 VDC (Backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e1280 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Memory\u003c\/td\u003e\n\u003ctd\u003e60 Ksteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Memory\u003c\/td\u003e\n\u003ctd\u003e128 Kwords (DM: 32 Kwords, EM: 32 Kwords x 3 banks)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Protocol \u0026amp; Network Interoperability\u003c\/h3\u003e\n\u003cp\u003eThe unit interfaces across the CJ-series backplane bus communication velocity framework, synchronizing cyclic input\/output refreshes with expansion rack modules. Maintaining strict firmware flash compatibility with CX-Programmer tools, the processor executes high-speed logic scanning while enabling deterministic data exchange across EtherNet\/IP and Controller Link networks without scan jitter.\u003c\/p\u003e\n\u003ch3\u003eBox Contents \u0026amp; Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Omron CJ1G-CPU45H Central Processing Unit Module\u003c\/li\u003e\n\u003cli\u003e1 x Set of Terminal Interface Dust Covers\u003c\/li\u003e\n\u003cli\u003e1 x System Installation Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation \u0026amp; Earthing Procedures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDIN-Rail Assembly \u0026amp; Panel Spacing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePosition the processor onto a standard 35 mm DIN rail inside a protective panel enclosure. Secure the unit using mechanical end brackets on both sides to prevent horizontal displacement. Maintain a 50 mm clearance gap above and below the module for passive convective airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEarthing \u0026amp; Field Line Separation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnect the functional earth (FE) terminal of the adjacent system power supply module to a dedicated ground bus with a resistance under 100 ohms. Separate CPU communication cables from 230 VAC power conduits and inverter output leads to prevent noise coupling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Engineering FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the current draw of the CJ1G-CPU45H from the 5 VDC backplane bus?\u003c\/p\u003e\n\u003cp\u003eThe CPU draws 0.91 A at 5 VDC directly from the internal backplane rail powered by the system power supply module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the CPU module be removed or replaced while backplane power is active?\u003c\/p\u003e\n\u003cp\u003eNo, live hot-swapping is prohibited. Power to the rack power supply unit must be turned off prior to module removal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat maximum discrete and analog I\/O capacity does the CPU support?\u003c\/p\u003e\n\u003cp\u003eThe processor directly controls up to 1280 local points mapped across the main rack and connected expansion racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the 128 Kwords data memory structured across the internal banks?\u003c\/p\u003e\n\u003cp\u003eData memory is divided into 32 Kwords of standard DM registers and 96 Kwords of EM memory split over 3 separate banks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow are active program files and memory values retained during power failures?\u003c\/p\u003e\n\u003cp\u003eAn onboard lithium battery backs up user program RAM, real-time clock values, and non-volatile DM registers during power loss.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat software tools are used for offline programming and memory configuration?\u003c\/p\u003e\n\u003cp\u003eProgram development and parameter transfer are managed via CX-Programmer through the peripheral port or serial options.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat atmospheric conditions apply to continuous operation inside a panel?\u003c\/p\u003e\n\u003cp\u003eOperate within an ambient temperature range of 0 to 55 deg C with relative humidity between 10% and 90% non-condensing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the processor support external media for program loading and data retention?\u003c\/p\u003e\n\u003cp\u003eYes, the unit features a front-panel CompactFlash card slot for memory backups, recipe storage, and system data logging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306660020397,"sku":"CJ1G-CPU45H","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/CJ1G-CPU45H_1.jpg?v=1788058388","url":"https:\/\/www.maxwellplc.com\/products\/omron-cj1g-cpu45h-cpu-unit-cj1-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}