{"product_id":"omron-cj1m-cpu11-cj-series-cpu-unit","title":"Omron CJ1M-CPU11 CJ Series CPU Unit","description":"\u003cp\u003eConfigured for logic execution and centralized system processing in CJ Series backplane assemblies, the \u003cstrong\u003eOmron CJ1M-CPU11\u003c\/strong\u003e (\u003cstrong\u003eCJ1M-CPU11\u003c\/strong\u003e) CPU Unit provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eModel Variant \u0026amp; System Structure\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Controller\u003c\/strong\u003e: CJ1M-CPU11 central processing unit operating without expansion racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Capacity\u003c\/strong\u003e: Supports up to 160 local I\/O points across a maximum of 10 mountable units on the CPU rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Architecture\u003c\/strong\u003e: Integrated 5K-step program memory alongside a dedicated 32K-word Data Memory (DM) block. No Expansion Data Memory (EM) capacity is provided on this hardware revision.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance Specifications\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\u003eCJ1M-CPU11\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\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eCPU Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCJ Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Capacity\u003c\/td\u003e\n\u003ctd\u003e5K steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Memory\u003c\/td\u003e\n\u003ctd\u003e32K words (DM), No EM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e160 I\/O points \/ 10 Units max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruction Execution Time\u003c\/td\u003e\n\u003ctd\u003e0.1 us (Basic LD instruction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Current Consumption\u003c\/td\u003e\n\u003ctd\u003e0.58 A at 5 VDC (Backplane)\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\u003ePhysical Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.237 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\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\u003eApprox. 180 x 120 x 90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Backplane Communication \u0026amp; Execution\u003c\/h3\u003e\n\u003cp\u003eThe internal architecture relies on optimized backplane bus communication velocity Licences to maintain synchronous signal processing across attached I\/O units. High-density digital and analog modules interfacing through the local backplane leverage dedicated DMA mechanisms, eliminating scan-time overhead during heavy data transfers. Firmware flash compatibility ensures uniform instruction execution and timing predictability during high-speed sequential control routines.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Omron CJ1M-CPU11 Central Processing Unit\u003c\/li\u003e\n\u003cli\u003e1 x End Cover (CJ1W-TER01 required for backplane bus termination)\u003c\/li\u003e\n\u003cli\u003e1 x Instruction sheet and terminal cover set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Installation \u0026amp; Cabling Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Assembly\u003c\/strong\u003e: Mount the CPU unit directly to the DIN rail or backplane panel as the leftmost component adjacent to the power supply unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBus Termination\u003c\/strong\u003e: Always secure the right-side end cover onto the last I\/O unit on the rack to ensure proper signal reflection termination on the internal bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements\u003c\/strong\u003e: Connect a dedicated protective earth wire (100 ohm or less grounding resistance) to the system power supply unit terminal to mitigate common-mode noise interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management\u003c\/strong\u003e: Maintain a minimum clearance of 20 mm above and below the CPU and adjacent modules to facilitate natural convection cooling across internal components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Questions \u0026amp; Answers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the basic instruction processing speed for this central processing unit?\u003c\/p\u003e\n\u003cp\u003eThe execution speed for basic ladder logic instructions (such as a standard LD instruction) is 0.1 us per instruction on internal hardware execution loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the unit support expansion racks for extended I\/O configurations?\u003c\/p\u003e\n\u003cp\u003eNo, this CPU model does not support expansion racks. The maximum system limit is strictly 160 local I\/O points across 10 mounted units on the primary CPU rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs Expansion Data Memory (EM) available on this specific processing model?\u003c\/p\u003e\n\u003cp\u003eThis unit features 32K words of standard Data Memory (DM) only. It does not contain any integrated or expandable EM memory banks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow much current does the controller draw from the internal 5 VDC bus?\u003c\/p\u003e\n\u003cp\u003eThe hardware draws a continuous current load of 0.58 A from the internal 5 VDC backplane supply during standard operational states.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs hot-swapping supported when replacing attached local I\/O units on the rack?\u003c\/p\u003e\n\u003cp\u003eNo, removing or inserting attached I\/O modules while the backplane power supply is energized can disrupt internal bus communication and cause component damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat happens if the end cover is omitted from the rightmost module?\u003c\/p\u003e\n\u003cp\u003eThe backplane bus circuit remains open, preventing valid logic framing and triggering a system bus error that halts CPU execution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the internal firmware be updated via field programming connections?\u003c\/p\u003e\n\u003cp\u003eFirmware operations depend on hardware flash controller compatibility, requiring official Omron programming tools and standard CX-Programmer transfer protocols.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat grounding precautions must be observed during hardware installation?\u003c\/p\u003e\n\u003cp\u003eThe protective earth terminal must be grounded independently using a heavy-gauge wire to prevent high-frequency noise from inducing CPU memory faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306610114733,"sku":"CJ1M-CPU11","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/CJ1M-CPU11_4.jpg?v=1788101556","url":"https:\/\/www.maxwellplc.com\/ru\/products\/omron-cj1m-cpu11-cj-series-cpu-unit","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}