{"product_id":"omron-cj2m-cpu33-cpu-module-cj2m-series","title":"Omron CJ2M-CPU33 CPU Module CJ2M Series","description":"\u003cp\u003eThe \u003cstrong\u003eOmron CJ2M-CPU33\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCJ2M-CPU33\u003c\/strong\u003e CPU Units, operates as a dedicated hardware component for centralized logic execution and network communications within Omron CJ2M automation platforms.\u003c\/p\u003e\n\u003ch3\u003eTechnical Identifier Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Part Number:\u003c\/strong\u003e CJ2M-CPU33\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries Platform:\u003c\/strong\u003e CJ2M Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Classification:\u003c\/strong\u003e CPU Unit (Built-in EtherNet\/IP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmbedded Communications:\u003c\/strong\u003e EtherNet\/IP, Ethernet TCP\/IP, USB 2.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware 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\u003eCJ2M-CPU33\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\u003e0.19 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Dimensions\u003c\/td\u003e\n\u003ctd\u003e9.0 cm x 6.2 cm x 8.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e14.0 cm x 10.0 cm x 11.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\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\u003e0.70 A at 5 VDC (700 mA Backplane)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Capacity\u003c\/td\u003e\n\u003ctd\u003e20K steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Memory Capacity\u003c\/td\u003e\n\u003ctd\u003e64K words (DM: 32K words, EM: 32K words x 1 bank)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLD Instruction Execution Time\u003c\/td\u003e\n\u003ctd\u003e0.04 us (40 ns)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Mountable Units\u003c\/td\u003e\n\u003ctd\u003e40 Units (3 Expansion Racks max.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Digital I\/O Points\u003c\/td\u003e\n\u003ctd\u003e2560 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in Interfaces\u003c\/td\u003e\n\u003ctd\u003eUSB, EtherNet\/IP port, Option Board Slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eMounted in a panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrounding Standard\u003c\/td\u003e\n\u003ctd\u003eLess than 100 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP Determinism and Backplane Bus Velocity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eOmron CJ2M-CPU33\u003c\/strong\u003e integrates an independent EtherNet\/IP network processor that operates without burdening the core instruction execution cycle. Reaching ladder instruction execution speeds of 0.04 us (40 ns), the unit ensures precise timing loops while simultaneously managing cyclic implicit messaging and explicit TCP\/IP data transfers.\u003c\/p\u003e\n\u003cp\u003eThe internal backplane bus handles up to 40 expansion units scaled across 3 expansion racks, delivering deterministic update cycles for up to 2560 digital I\/O points. Current draw is maintained at 0.70 A (700 mA) on the internal 5 VDC backplane rail. The CPU panel features an option board slot allowing field-installation of RS-232C, RS-422A\/485, or Pulse I\/O daughter cards without expanding the physical footprint.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents \u0026amp; Ordering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Omron CJ2M-CPU33 CPU Unit\u003c\/li\u003e\n\u003cli\u003e1x CJ1W-BAT01 Backup Battery\u003c\/li\u003e\n\u003cli\u003e1x Protective USB Connector Cover\u003c\/li\u003e\n\u003cli\u003e1x Hardware Installation Sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Mounting:\u003c\/strong\u003e Install the CPU module on a standard 35 mm DIN rail or panel baseplate within an IP54 control cabinet. Maintain at least 30 mm vertical clearance above and below the housing for heat dissipation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Assembly:\u003c\/strong\u003e Slide the CPU flush against the adjacent CJ-Series power supply module. Engage the top and bottom slider latches until an audible click confirms proper bus pin mating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements:\u003c\/strong\u003e Wire the functional ground (FG) terminal on the rack power supply module to earth ground using a conductor of 2.0 mm sq. minimum. Verify the earth loop resistance measures under 100 ohm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEtherNet\/IP Cabling:\u003c\/strong\u003e Connect Category 5e or Category 6 STP cable to the RJ45 port. Route communication cables in separate raceways away from high-voltage AC motor drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding:\u003c\/strong\u003e Connect communication cable braids to the connector shroud to establish a 360-deg braid shield against industrial electromagnetic noise.\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 execution speed of a standard LD instruction on the CJ2M-CPU33?\u003c\/p\u003e\n\u003cp\u003eThe processor executes basic ladder (LD) instructions in 0.04 us (40 ns).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the total current draw of the CJ2M-CPU33 on the 5 VDC backplane supply?\u003c\/p\u003e\n\u003cp\u003eThe module draws 0.70 A (700 mA) at 5 VDC directly from the backplane power supply module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow many expansion racks and units can be connected to a single CPU rack?\u003c\/p\u003e\n\u003cp\u003eThe controller supports a maximum of 40 mountable units distributed over up to 3 expansion racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the memory structure and capacity for user programs and data storage?\u003c\/p\u003e\n\u003cp\u003eThe controller features 20K steps of program capacity and 64K words of data memory split into 32K words DM and 32K words x 1 bank EM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat communication ports are natively available on the front face of the unit?\u003c\/p\u003e\n\u003cp\u003eThe CPU features an embedded EtherNet\/IP port, a peripheral USB port, and one dedicated option board slot.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat option boards can be installed into the built-in option board slot?\u003c\/p\u003e\n\u003cp\u003eThe slot accepts optional serial communication boards (RS-232C, RS-422A\/485) or Pulse I\/O modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the CJ2M-CPU33 CPU be hot-swapped while the CJ backplane power is active?\u003c\/p\u003e\n\u003cp\u003eNo, the power supply module feeding the CPU rack must be switched off prior to mounting or removing the CPU unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the grounding requirement for the system functional ground?\u003c\/p\u003e\n\u003cp\u003eThe functional ground line must be connected to an earth ground maintaining a resistance value of less than 100 ohm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306665296045,"sku":"CJ2M-CPU33","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/omron_cj2m-cpu33_1.jpg?v=1788412035","url":"https:\/\/www.maxwellplc.com\/products\/omron-cj2m-cpu33-cpu-module-cj2m-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}