{"product_id":"yokogawa-cnb-iia-centum-cs-3000-communication-module","title":"Yokogawa CNB-IIA CENTUM CS 3000 Communication Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa CNB-IIA\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCNB-IIA\u003c\/strong\u003e Communication Module, operates as a dedicated hardware component for real-time signal acquisition and bus data transfer within CENTUM CS 3000 and CENTUM VP platforms. It manages signal routing and data transfer between field analog\/digital I\/O channels and central processor units, maintaining dual-redundant link continuity for critical field telemetry.\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\u003eBase Model\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix \/ Option\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTechnical Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCNB-IIA\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eBase communication module for CENTUM CS 3000 and CENTUM VP systems\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\u003eCNB-IIA\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\u003eStandard modular weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa card rack dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard backplane power allocation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCommunication Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eCENTUM CS 3000, CENTUM VP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eHART protocol, Analog\/Digital I\/O bus protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual-redundant module pairing support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa CNB-IIA communication module provides channel-to-channel isolation parameters across internal bus pathways to prevent field-side common-mode voltage spikes and electrical noise from interfering with central control logic. Designed for dual-redundant installations with HART-enabled analog I\/O cards, the module maintains continuous HART digital signal pass-through and loop data synchronization across redundant communication channels without signal attenuation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the CNB-IIA communication module support hot-swap replacement in a redundant configuration?\u003c\/p\u003e\n\u003cp\u003eA: Yes, in a dual-redundant configuration, a faulty CNB-IIA module can be removed and replaced under rack backplane power without interrupting active communication on the secondary module.\u003c\/p\u003e\n\u003cp\u003eQ: How does the CNB-IIA manage HART protocol signals from field transmitters?\u003c\/p\u003e\n\u003cp\u003eA: The module transparently passes HART frequency-shift keying (FSK) digital signals super-imposed on 4-20 mA current loops directly to the DCS controller without disturbing primary analog process variable values.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eVerify system backplane power levels are within operating tolerances prior to inserting the CNB-IIA module into the designated card nest slot.\u003c\/li\u003e\n\u003cli\u003eEnsure both primary and secondary modules are firmly locked into the subrack chassis when configuring a dual-redundant communication pair.\u003c\/li\u003e\n\u003cli\u003eKeep all communication signal cabling routed separately from high-voltage AC lines and high-current motor control wiring, maintaining a minimum clearance of 200 mm.\u003c\/li\u003e\n\u003cli\u003eTerminate all field communication cable shields at a single point on the main enclosure ground bar to prevent ground potential loops from degrading signal integrity.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52827336868120,"sku":"CNB-IIA","price":170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/VC401-10_3_5ef342a9-8edc-46bc-bc26-97a20f5614e3.jpg?v=1791426283","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-cnb-iia-centum-cs-3000-communication-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}