{"product_id":"cp345-yokogawa-centum-cs-3000-processor-module-cpu","title":"CP345 Yokogawa CENTUM CS 3000 Processor Module (CPU)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary intelligence hub for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM CS 3000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDistributed Control System (DCS). This high-speed central processing unit (CPU) executes complex control algorithms and manages real-time data synchronization across the control station. In large-scale industrial operations—such as LNG terminals, continuous chemical processing, and sophisticated power grids—the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emaintains the precise timing and logic execution necessary to stabilize volatile processes. Its architecture prioritizes deterministic processing, ensuring that safety-critical control loops and high-frequency data sampling occur without jitter or latency. By integrating robust computational power with advanced fault-tolerance mechanisms, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esafeguards plant productivity and provides the reliable decision-making core required for modern automated infrastructures.\u003c\/p\u003e\n\u003ch2\u003eTechnical Configuration\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincorporates a specialized hardware architecture designed to withstand the rigors of 24\/7 industrial operation while maintaining extreme logic density:\u003c\/p\u003e\n\u003ch3\u003eDual-Redundant Capability\u003c\/h3\u003e\n\u003cp\u003eThis CPU module supports high-availability paired configurations. In a redundant setup, two\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodules operate in parallel, with the \"standby\" unit maintaining a mirrored state of the \"active\" unit's memory. This design enables instantaneous bumpless failover, preventing process upsets if a hardware fault occurs.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Memory Management\u003c\/h3\u003e\n\u003cp\u003eThe module features high-speed ECC (Error Correction Code) memory to detect and correct single-bit errors in real-time. This prevents data corruption in environments with high electromagnetic noise, ensuring the integrity of the control logic and historical data buffers.\u003c\/p\u003e\n\u003ch3\u003eVnet Communication Integration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecommunicates via the high-speed\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVnet\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(or VL net), allowing it to interface seamlessly with I\/O modules and Human Interface Stations (HIS). It manages large-scale tag databases and complex sequence tables with high-efficiency throughput.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\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\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eYokogawa\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCENTUM CS 3000\u003c\/strong\u003e \/ CS 1000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProcessor Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-speed Industrial RISC Processor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRedundancy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupported (Dual-redundant configuration)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVnet \/ VL net\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 50°C (32 to 122°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 15W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.64 kg (1.41 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (Module)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7 cm x 25 cm x 27 cm (2.8\" x 9.8\" x 10.6\")\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eexcels in environments where unplanned downtime is financially catastrophic. Its fanless design relies on high-efficiency heat dissipation through its structural chassis, eliminating a common point of mechanical failure found in commercial-grade computers. The module's internal circuitry features a conformal coating that resists the corrosive effects of airborne chemical contaminants often found in refineries. Furthermore, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers backward compatibility with several legacy\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehardware nests, providing a cost-effective path for upgrading older control stations to modern performance standards without a complete system overhaul.\u003c\/p\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003cp\u003eWhen installing the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e, ensure the module is inserted into the dedicated CPU slot of the Field Control Station (FCS) base plate. Tighten the top and bottom mounting screws to provide a secure mechanical bond and a reliable electrical ground.\u003c\/p\u003e\n\u003cp\u003eBefore powering the system, verify that the station address settings on the module's dip switches match the project configuration. For redundant systems, both\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodules must have identical hardware revisions and firmware versions to facilitate proper synchronization. We recommend maintaining a clean, dust-free environment with stable humidity levels to prevent electrostatic discharge (ESD) during maintenance. If replacing a module in an active system, follow the \"Maintenance Override\" procedures in the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esoftware to ensure a smooth transition to the redundant partner.\u003c\/p\u003e\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003eQ1: What is the main difference between CP345 and the newer CP451?\u003c\/p\u003e\n\u003cp\u003eA1: The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis primarily designed for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCS 3000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries using\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVnet\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecommunication, while the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP451\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis built for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitecture and utilizes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVnet\/IP\u003c\/strong\u003e. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eremains the standard choice for maintaining and expanding existing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCS 3000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esystems.\u003c\/p\u003e\n\u003cp\u003eQ2: Can the CP345 be hot-swapped during operation?\u003c\/p\u003e\n\u003cp\u003eA2: Yes, in a redundant configuration, you can replace a faulty\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhile the partner module is \"Active\" without stopping the controller. The system will automatically synchronize the new module once it is inserted.\u003c\/p\u003e\n\u003cp\u003eQ3: Does this module require a battery for memory retention?\u003c\/p\u003e\n\u003cp\u003eA3: The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCP345\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes a battery backup for its SRAM to retain user programs and data during a total power loss. We recommend checking and replacing this battery during scheduled annual maintenance to prevent data loss.\u003c\/p\u003e\n\u003cp\u003eQ4: What do the \"HRDY\" and \"CTRL\" LEDs indicate?\u003c\/p\u003e\n\u003cp\u003eA4: The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHRDY\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Hardware Ready) LED indicates that the CPU's internal diagnostics have passed. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCTRL\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Control) LED indicates that the module is currently in charge of the control logic and communicating with the I\/O modules.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45898472816813,"sku":"CP345","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/yokogawa_cp345_4.jpg?v=1775724812","url":"https:\/\/www.maxwellplc.com\/products\/cp345-yokogawa-centum-cs-3000-processor-module-cpu","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}