{"product_id":"cm1-a-yokogawa-communication-module","title":"CM1*A Yokogawa Communication Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa CM1*A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCM1\u003c\/strong\u003e Communication Module, operates as a dedicated hardware component for high-speed protocol execution and data routing within CENTUM VP and CENTUM CS 3000 platforms. It manages bi-directional telemetry transmission, buffer queue processing, and system-level failover tasks across plant network buses.\u003c\/p\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\u003eCM1*A (CM1 Suffix A)\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\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e120 mm x 80 mm x 35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\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\u003e24 VDC typical system supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocols\u003c\/td\u003e\n\u003ctd\u003eOPC, Modbus RTU\/TCP, EtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eHot-standby failover support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Functions\u003c\/td\u003e\n\u003ctd\u003eData routing, buffering, procedure execution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP, CENTUM CS 3000\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 Loop Protocol and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe CM1*A module acts as a communications hub routing real-time process data between field instrumentation networks and control station processors. Interfacing with downstream field I\/O subsystems carrying 4-20 mA HART loop protocol parameters, the unit converts field telemetry packets into OPC, Modbus RTU\/TCP, and EtherNet\/IP frames. High-density backplane channel-to-channel isolation prevents electrical noise and common-mode voltage spikes on communication lines from disrupting internal microprocessors or cross-contaminating connected subsystem networks during deterministic data transport.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the CM1*A module execute failover during hardware or line faults?\u003c\/p\u003e\n\u003cp\u003eA: The board supports hot-standby failover architecture, enabling dual-redundant tracking and immediate control path transfer without losing data buffers or resetting active network sessions.\u003c\/p\u003e\n\u003cp\u003eQ: What power input voltage is required to energize the CM1*A communication module?\u003c\/p\u003e\n\u003cp\u003eA: The module relies on a nominal 24 VDC industrial power distribution input provided through the system rack backplane assembly.\u003c\/p\u003e\n\u003cp\u003eQ: Can the CM1*A simultaneously handle serial Modbus and Ethernet-based communication protocols?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the onboard processor executes firmware routines for Modbus RTU, Modbus TCP, EtherNet\/IP, and OPC protocol handling concurrently across its physical interfaces.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Static Precautions:\u003c\/strong\u003e Always wear a grounded anti-static wrist strap before handling the circuit assembly or inserting the module into the sub-rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Mounting:\u003c\/strong\u003e Align the module card edges with the enclosure slot guides and push firmly until the rear connector seats into the backplane; lock the faceplate retention screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Shielding:\u003c\/strong\u003e Connect overall communication cable shields to a dedicated instrument single-point earth ground bar to suppress electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Separation:\u003c\/strong\u003e Maintain physical segregation between serial\/Ethernet bus lines and high-voltage AC power cabling inside the control cabinet wire trunks.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53312637206837,"sku":"CM1*A","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/CA0A_348eaf3c-3f0f-4ac1-9fd5-a305e806421e.png?v=1786947159","url":"https:\/\/www.5gplc.com\/products\/cm1-a-yokogawa-communication-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}