{"product_id":"sec401-11-yokogawa-esb-bus-coupler-module-new-original-stock","title":"SEC401-11 Yokogawa ESB Bus Coupler Module | New \u0026 Original Stock","description":"\u003cp\u003eConfigured for high-speed master control in CENTUM VP control systems, the \u003cstrong\u003eYokogawa SEC401-11\u003c\/strong\u003e (\u003cstrong\u003eSEC401\u003c\/strong\u003e ESB Bus Coupler Module) provides direct physical execution of bus master interface functions to facilitate data exchange between the Field Control Unit (FCU) and peripheral node units.\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\u003eSEC401-11\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\u003e0.24 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Connectable Nodes\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e128 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Distance\u003c\/td\u003e\n\u003ctd\u003e10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control \u0026amp; Data Integrity\u003c\/h3\u003e\n\u003cp\u003eThe SEC401-11 operates as a high-speed bus master, managing I\/O data cycles at a throughput of 128 Mbps. The module incorporates robust signal isolation to protect the FCU backplane from transient interference originating on the ESB bus. By supporting up to 9 nodes within a 10-meter range, it ensures predictable, low-latency communication loops. The module architecture is engineered to maintain signal integrity in demanding industrial environments, ensuring that real-time process data remains synchronized within the required DCS scan intervals.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the SEC401-11 be used as a slave unit on the ESB bus?\u003c\/p\u003e\n\u003cp\u003eA: No, the SEC401-11 is explicitly designed with bus master interface functionality. It acts as the primary controller for the ESB segment and cannot be configured as a slave node.\u003c\/p\u003e\n\u003cp\u003eQ: What happens if the 10-meter transmission distance is exceeded?\u003c\/p\u003e\n\u003cp\u003eA: Exceeding the 10-meter distance limit introduces signal attenuation and timing jitter. This can lead to increased frame retransmission rates, bus errors, or a complete loss of communication synchronization between the FCU and the node units.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the ESB bus cable is fully seated in the master interface port; ensure the locking mechanism is engaged to prevent intermittent communication faults due to vibration.\u003c\/li\u003e\n\u003cli\u003eObserve the 10-meter maximum transmission distance strictly to avoid signal timing issues.\u003c\/li\u003e\n\u003cli\u003eRoute ESB communication cables in shielded trays separated from power supply cabling to maintain the signal-to-noise ratio required for 128 Mbps transmission.\u003c\/li\u003e\n\u003cli\u003eConfirm that the mounting environment adheres to standard DCS cabinet thermal regulations, as the module's performance relies on stable ambient temperatures to maintain precise clock synchronization on the bus.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49143390339324,"sku":"SEC401-11","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/SEC401-11_S12.jpg?v=1780019920","url":"https:\/\/www.electronicplc.com\/ar\/products\/sec401-11-yokogawa-esb-bus-coupler-module-new-original-stock","provider":"Electronic PLC","version":"1.0","type":"link"}