{"product_id":"omron-cj1m-cpu12-cpu-unit-cj-series","title":"Omron CJ1M-CPU12 CPU Unit CJ Series","description":"\u003cp\u003eThe \u003cb\u003eOmron CJ1M-CPU12\u003c\/b\u003e, also cataloged as the \u003cb\u003eCJ1M-CPU12\u003c\/b\u003e CPU Unit, operates as a dedicated hardware component for centralized programmable logic execution and system sequencing within Omron CJ Series automation platforms. Configured for real-time control across local rack architectures, this processor executes high-speed instructions, manages system interrupts, and coordinates data transfer across up to 10 total connected modules via dedicated serial and peripheral interface ports.\u003c\/p\u003e\n\u003ch3\u003eTechnical Identifier Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent Identifier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOmron\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSystem Manufacturer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBase Model\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCJ1M-CPU12\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Processing Unit with Standard Local Rack Support\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSeries\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCJ Series\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eModular PLC Architecture\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHardware Variant\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCJ1M Architecture\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMedium-Scale CPU with Built-in Serial and Peripheral Ports\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCJ1M-CPU12\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOmron\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJapan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.19 kg (Net) \/ 2.0 kg (Shipping Packaging)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9.0 cm x 3.1 cm x 6.5 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15.0 cm x 10.0 cm x 8.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 55 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.58 A at 5 VDC (Internal Backplane Bus)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eI\/O Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e320 points max.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMountable Units\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 units max. (CPU Rack: 10 units, Expansion Rack: Not supported)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProgram Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10K steps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eData Memory Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e32K words (DM: 32K words, EM: None)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInstruction Execution Time\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.10 microsecond (LD instruction) \/ 0.30 microsecond (MOV instruction)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOverhead Time\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBuilt-in Ports\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1x Peripheral port, 1x RS-232C port\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAuxiliary Storage Option\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMemory Card (CompactFlash slot)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSubroutines and Jumps\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1024\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eScheduled Interrupts\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePLC Backplane Bus Velocity and Serial Determinism\u003c\/h3\u003e\n\u003cp\u003eThe CJ1M-CPU12 provides precise backplane execution velocity with a basic LD instruction execution time of 100 ns (0.10 microseconds) and a MOV instruction execution time of 0.30 microseconds. System scan processing maintains a low overhead latency of 0.5 ms. The CJ1M-CPU12 supports local rack connectivity for up to 10 modules and manages an I\/O capacity of up to 320 physical points. Serial communications via the built-in RS-232C port and peripheral port support Host Link, no-protocol, and FINS serial framing. An integrated CompactFlash slot facilitates non-volatile backup and restore operations for programs, setup parameters, and DM data memory contents without continuous battery reliance.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents \u0026amp; Ordering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1x Omron CJ1M-CPU12 CPU Unit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1x End Cover (CJ1W-TER01 required for backplane termination)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1x Quick Reference Manual Document\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMounting Configuration:\u003c\/b\u003e Direct-mount the CPU unit onto a standard 35 mm DIN rail. Ensure the module is locked adjacent to the power supply unit on the leftmost position of the CPU rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eExpansion Restrictions:\u003c\/b\u003e Expansion racks are not supported on this model. Hardware expansion is limited to a maximum of 10 units mounted directly on the local CPU rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBackplane Bus Termination:\u003c\/b\u003e Secure a CJ1W-TER01 End Cover to the rightmost unit on the local CPU rack to close the backplane communication circuit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSerial Cable Shielding:\u003c\/b\u003e For RS-232C communication lines, use shielded twisted-pair cabling. Connect the shield braid to the shell of the D-sub connector and ground the frame ground (FG) terminal to an earth point with resistance under 100 ohms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum physical I\/O capacity supported by the CJ1M-CPU12?\u003c\/p\u003e\n\u003cp\u003eThe CPU supports up to 320 physical I\/O points distributed across a maximum of 10 connectable I\/O units on the CPU rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow many expansion racks can be connected to the CJ1M-CPU12?\u003c\/p\u003e\n\u003cp\u003eExpansion racks are not supported on the CJ1M-CPU12. System configuration is strictly limited to 10 local rack units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat basic instruction execution speeds does this model achieve?\u003c\/p\u003e\n\u003cp\u003eThe module executes basic LD (Load) instructions in 100 ns (0.10 microseconds) and MOV instructions in 0.30 microseconds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat built-in serial communication interface ports are provided?\u003c\/p\u003e\n\u003cp\u003eThe CPU includes 1 built-in RS-232C port (D-sub 9-pin) and 1 dedicated peripheral port for programming and host communications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat memory card type is supported for external program storage?\u003c\/p\u003e\n\u003cp\u003eThe CPU features an integrated card slot that accepts standard CompactFlash memory cards for data logging, parameter loading, and program storage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the user program capacity and data memory size?\u003c\/p\u003e\n\u003cp\u003eThe CJ1M-CPU12 provides 10K steps of user program capacity and 32K words of Data Memory (DM). Extended Memory (EM) is not supported.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs hot-swapping allowed on the CJ1M-CPU12 backplane?\u003c\/p\u003e\n\u003cp\u003eNo, main power to the rack power supply unit must be turned off before inserting or removing any CPU or I\/O modules on the backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is the CJ1W-TER01 End Cover required?\u003c\/p\u003e\n\u003cp\u003eThe CJ1W-TER01 terminates the backplane bus logic circuit. The CPU will flag a bus error and fail to execute logic if the end cover is absent.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306671718573,"sku":"CJ1M-CPU12","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/CJ1M-CPU12_1.jpg?v=1788152432","url":"https:\/\/www.maxwellplc.com\/products\/omron-cj1m-cpu12-cpu-unit-cj-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}