{"product_id":"omron-cj1g-cpu42p-cj1g-series-loop-control-cpu-unit","title":"Unité CPU de contrôle de boucle série CJ1G Omron CJ1G-CPU42P","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Omron CJ1G-CPU42P is a high-performance central processing unit integrating sequence and loop control functionality within the SYSMAC CJ1 programmable controller family. Engineered specifically for process automation applications, this engine combines high-speed ladder logic execution with advanced analog regulation capabilities, enabling the block processing of PID algorithms directly inside the processor. By executing sequence control and process loops concurrently, the module streamlines system overhead and eliminates the need for standalone regulatory controllers. It features an onboard peripheral port, an integrated RS-232C interface, and flash memory backup to safeguard user data. The unit maintains complete structural and functional compatibility with standard CJ-series discrete, analog, and communication network interfaces.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated dual engine executing ladder logic and regulatory process control concurrently.\u003c\/li\u003e\n\u003cli\u003eEmbedded loop control function blocks for PID regulation, cascade loops, and feed-forward operations.\u003c\/li\u003e\n\u003cli\u003eDedicated internal memory area for scaling and allocating process variables.\u003c\/li\u003e\n\u003cli\u003eBuilt-in RS-232C port and high-speed peripheral tool interface.\u003c\/li\u003e\n\u003cli\u003eCompact, slotless design optimizing physical space configurations along the din-rail track.\u003c\/li\u003e\n\u003cli\u003eFlash memory backup for step programs and loop configurations, preventing data loss during power outages.\u003c\/li\u003e\n\u003cli\u003eDirect configuration compatibility with standard CJ-series high-density discrete and specialized analog I\/O modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature profile management and thermal regulation in chemical reactors.\u003c\/li\u003e\n\u003cli\u003eFlow rate dosing and parameter monitoring in water treatment infrastructure.\u003c\/li\u003e\n\u003cli\u003ePressure and level regulation loops in specialized fluid distribution systems.\u003c\/li\u003e\n\u003cli\u003eBatch processing and material blending controls in food production lines.\u003c\/li\u003e\n\u003cli\u003eExtrusion line temperature and variable motor drive coordination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003ePerformance and System Capacity\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eProgram Capacity\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e20K steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eData Memory Capacity\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e64K words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eNumber of Loop Control Blocks\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eUp to 300 blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eLD Instruction Execution Speed\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e0.04 $\\mu$s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eMaximum I\/O Capacity\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003e1,280 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eMaximum Number of Expansion Racks\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e3 Racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eCommunication and Interfaces\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eBuilt-in Peripheral Port\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003eProprietary tool bus connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eBuilt-in Serial Port\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eRS-232C (D-Sub 9-pin female connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eSerial Protocols Supported\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eHost Link, NT Link, No-protocol serial communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eExtended Storage Interface\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003eCompactFlash card slot for memory logging and parameter storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eElectrical and Environmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e0.91 A at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eOperating Ambient Temperature\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e0 to 55 Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eStorage Ambient Temperature\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003e-20 to 75 Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eAmbient Operating Humidity\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e10% to 90% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eAtmosphere\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003eMust be free from corrosive gases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003ePort \/ Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003ePeripheral Port\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003eCustom Omron Connector\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003eDirect connection for CX-Programmer or CX-Process configuration tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eRS-232C Port\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eD-Sub 9-pin (Female)\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eInterfacing local HMI displays, specialized modems, or SCADA links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eMemory Card Slot\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eCompactFlash (CF) Slot\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eStoring loop parameters, step program backups, and CSV format logs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Assembly:\u003c\/strong\u003e Guide the upper alignment hook of the CPU onto the standard 35 mm DIN rail immediately adjacent to the CJ-series system power supply module. Push down the top and bottom sliding locks until they lock securely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Earthing:\u003c\/strong\u003e Establish a dedicated connection using a short electrical conductor ($2\\text{ mm}^2$ minimum thickness) from the functional ground terminal on the power supply module to the main panel ground bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Maintain an unobstructed boundary gap of at least 20 mm above and below the module ventilation slots to ensure passive convection airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Shielding:\u003c\/strong\u003e Ensure analog loop instrumentation wires and low-voltage sensor lines are shielded. Route them separate from heavy motor mains or power line cables to prevent induction noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot-Swapping Restriction:\u003c\/strong\u003e Always isolate the entire rack power supply circuit before mounting, interlocking, or removing the CPU assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat differentiates this model from standard CJ1G processors?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eThe \"P\" suffix signifies integrated process loop control, enabling the deployment of dedicated process control blocks alongside traditional ladder logic step configurations.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat engineering software tools are required to program this unit?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCX-Programmer manages standard ladder sequence logic, while CX-Process is utilized to engineer the internal loop control blocks.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIs a battery backup strictly required to keep the step logic safe?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eNo, the user program and loop blocks write automatically to internal non-volatile flash memory, securing the logic against total power loss.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCan PID tuning parameters be modified during active system operation?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eYes, loop gains, integration times, and parameter limits can be adjusted online via connected software tools or industrial HMIs.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDoes this CPU module support standalone operation without a power module?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eNo, it must be interlocked onto a backplane assembly powered by a compatible left-side CJ-series system power supply module.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat type of memory card does the onboard slot receive?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eIt accommodates standard Omron-certified industrial CompactFlash cards for data logging and system backups.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the maximum number of local expansion racks supported by this processor?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eThe system topology supports up to 3 local expansion racks linked via standard expansion cables.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat communication modes can be configured on the built-in D-Sub port?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eThe port handles standard Host Link, NT Link (1:N mode), or No-protocol ASCII configurations for custom serial interfacing.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHow does the module indicate internal loop execution faults?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eHardware indicators such as the front-panel ERR\/ALM LED flash or light up steady to signal fault conditions, which can be diagnosed through allocated error flags.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat approach should be followed if electromagnetic noise impairs signal tracking?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eVerify that the main power supply ground terminal links directly to a clean industrial ground, and check that all analog cable shields are connected on the panel end.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077931164011,"sku":"CJ1G-CPU42P","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/OmronCJ1G-CPU42P_1.png?v=1779618873","url":"https:\/\/www.plcprotech.com\/fr\/products\/omron-cj1g-cpu42p-cj1g-series-loop-control-cpu-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}