{"product_id":"yokogawa-ec402-50-esb-bus-coupler-module","title":"Yokogawa EC402-50 ESB Bus Coupler Module","description":"\u003cp\u003eThe Yokogawa EC402-50 is a two-port ESB Bus Coupler Module that provides the master interface between a Field Control Unit (FCU) and ESB Bus Node Units in a CENTUM VP FIO system. It supports I\/O data transmission at 128 Mbps, with a maximum of 13 connectable nodes and a total transmission distance of 20 m across its upper and lower ESB bus connections.\u003c\/p\u003e\n\u003ch3\u003eFunction and Communication Architecture\u003c\/h3\u003e\n\u003cp\u003eThe EC402-50 performs the ESB bus master interface function, connecting the FCU to distributed Node Units through the ESB communication bus. Its two front-mounted connector ports provide separate upper-side and lower-side bus connections.\u003c\/p\u003e\n\u003cp\u003eCompared with the EC401, the EC402 supports a larger number of connected nodes and a longer transmission distance. This two-port arrangement allows the FCU to communicate with Node Units on both sides of the coupler.\u003c\/p\u003e\n\u003ch3\u003eNode Capacity and Transmission Limits\u003c\/h3\u003e\n\u003cp\u003eThe module supports the following connection limits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUpper ESB bus: Maximum 9 units.\u003c\/li\u003e\n\u003cli\u003eLower ESB bus: Maximum 9 units.\u003c\/li\u003e\n\u003cli\u003eCombined capacity: Maximum 13 units.\u003c\/li\u003e\n\u003cli\u003eMaximum transmission distance: 10 m per bus connection.\u003c\/li\u003e\n\u003cli\u003eMaximum combined transmission distance: 20 m.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe actual number of connectable nodes depends on the FCS database configuration. The individual upper and lower limits should not be interpreted as permission to connect 18 units simultaneously.\u003c\/p\u003e\n\u003ch3\u003eRedundant Bus Configuration\u003c\/h3\u003e\n\u003cp\u003eThe EC402-50 supports single and dual-redundant ESB bus arrangements when installed in the specified FCU configuration.\u003c\/p\u003e\n\u003cp\u003eFor a non-redundant arrangement, install one module in slot 7 and cover slot 8 with a dummy module. For a dual-redundant arrangement, install two ESB Bus Coupler Modules in slots 7 and 8.\u003c\/p\u003e\n\u003cp\u003eThis configuration provides redundant communication paths between the FCU and connected Node Units.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003eEC402-50\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eESB Bus Coupler Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Function\u003c\/td\u003e\n\u003ctd\u003eESB bus master interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Ports\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper-Side Node Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 9 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLower-Side Node Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 9 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Node Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 13 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e128 Mbps (I\/O module data transmission)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper-Side Transmission Distance\u003c\/td\u003e\n\u003ctd\u003eMaximum 10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLower-Side Transmission Distance\u003c\/td\u003e\n\u003ctd\u003eMaximum 10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Transmission Distance\u003c\/td\u003e\n\u003ctd\u003eMaximum 20 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5 A\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\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e32.8 x 129.5 x 130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCompatible Field Control Units\u003c\/h3\u003e\n\u003cp\u003eThe EC402 is specified for installation in the following Field Control Units for FIO:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAFV30S \/ AFV30D\u003c\/li\u003e\n\u003cli\u003eAFV40S \/ AFV40D\u003c\/li\u003e\n\u003cli\u003eA2FV50S \/ A2FV50D\u003c\/li\u003e\n\u003cli\u003eA2FV70S \/ A2FV70D\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe FCU slot arrangement must follow the selected ESB bus configuration. For dual redundancy, both slots 7 and 8 are used.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum number of Node Units supported by the EC402-50?\u003c\/p\u003e\n\u003cp\u003eA: The module supports up to 9 units on the upper bus and 9 units on the lower bus, with a combined maximum of 13 units. The actual capacity depends on the FCS database configuration.\u003c\/p\u003e\n\u003cp\u003eQ: Can the EC402-50 be used in a dual-redundant ESB bus configuration?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Two ESB Bus Coupler Modules are installed in FCU slots 7 and 8 to configure dual-redundant ESB bus communication.\u003c\/p\u003e\n\u003cp\u003eQ: What is the difference between the EC401 and EC402?\u003c\/p\u003e\n\u003cp\u003eA: The EC402 has two ESB bus connector ports and supports a larger number of connected nodes and a longer transmission distance than the EC401. Its maximum combined node capacity is 13 units.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":68525333676274,"sku":"EB402-50","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/EB402-502.jpg?v=1793846303","url":"https:\/\/www.petrospare.com\/products\/yokogawa-ec402-50-esb-bus-coupler-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}