{"product_id":"lca-c-yokogawa-centum-control-processing-unit","title":"LCA*C Yokogawa CENTUM Control Processing Unit","description":"\u003cp\u003eConfigured for high-speed network integration in Yokogawa CENTUM DCS platforms, the \u003cstrong\u003eYokogawa LCA*C\u003c\/strong\u003e (\u003cstrong\u003eLCA\u003c\/strong\u003e Control Processing Unit) provides direct physical\/electrical execution to run system logic and process algorithms. The unit functions as a centralized computing hardware component, interfacing directly with local backplane buses to route discrete and analog data streams without execution lag. It processes 4 channels of mixed signals and communicates over Vnet\/IP, Modbus RTU\/TCP, ASCII, and RS-485 network interfaces.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode Element\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification \/ Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLCA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase model designation for CENTUM control processing unit card series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e*\u003cstrong\u003eC\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003eStyle code Revision C specifying hardware circuit layout, firmware revision, and terminal interface assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\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\u003eLCA*C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\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\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 100 mm x 50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e5 VDC nominal (backplane supplied) \/ 24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Processing\u003c\/td\u003e\n\u003ctd\u003e4 channels (analog and digital support)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP, Modbus RTU\/TCP, ASCII, RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Format\u003c\/td\u003e\n\u003ctd\u003eRack-mounted or modular slot insertion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Indicators\u003c\/td\u003e\n\u003ctd\u003eLED array for communication, health, and fault status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and DCS Logic Processing\u003c\/h3\u003e\n\u003cp\u003eThe LCA*C processing card executes real-time arithmetic calculations and schedules control loops across connected distributed control system nodes. To preserve frame timing and isolate transient spikes from field devices, the architecture incorporates channel-to-channel isolation across all signal conditioning stages. Incoming physical signals are decoded through dedicated Modbus and Vnet\/IP memory registers to update process variable tables. This continuous galvanic isolation barrier protects the primary microprocessor from common-mode electrical noise and prevents systemic ground potential differentials from interfering with loop calculations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific restrictions govern the online replacement or hot-swapping of the LCA*C control processor?\u003c\/p\u003e\n\u003cp\u003eA: Online replacement requires the controller to operate within a configured redundant processor pair. Removing a single non-redundant module interrupts the system backplane bus, halting active control outputs and forcing connected I\/O sub-modules into configured fail-safe states.\u003c\/p\u003e\n\u003cp\u003eQ: How does the processor react if backplane logic voltage drops below the 5 VDC nominal rating?\u003c\/p\u003e\n\u003cp\u003eA: The module contains an internal brownout detection circuit that continuously monitors input voltage rails. If logic voltage drops below operational thresholds, the hardware initiates a master reset, de-energizes command outputs, and illuminates the fault diagnostic LED.\u003c\/p\u003e\n\u003cp\u003eQ: What communication protocols are natively supported for host and field data exchange?\u003c\/p\u003e\n\u003cp\u003eA: The card natively supports Vnet\/IP network communications alongside Modbus RTU, Modbus TCP, ASCII, and RS-485 serial interfaces for real-time register translation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Insertion Mechanics:\u003c\/strong\u003e Align module side guides with rack-mount slot guide rails prior to insertion. Slide the hardware firmly into the backplane connector block until locking mechanisms fully engage to prevent vibration-induced contact interruption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Maintain a minimum 50 mm clearance above and below the rack chassis assembly to facilitate natural air circulation. Ensure cabinet ambient temperatures remain within -20 to 60 deg C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding:\u003c\/strong\u003e Terminate communication cable shielding at the cabinet entry bulkhead grounding strip. Route low-voltage signal lines away from high-voltage AC motor lines to suppress electromagnetic interference.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53280627228981,"sku":"LCA*C","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/LCAC.png?v=1786675320","url":"https:\/\/www.5gplc.com\/products\/lca-c-yokogawa-centum-control-processing-unit","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}