{"product_id":"yokogawa-vi451-11-vnet-ip-communication-module","title":"Module de communication Vnet\/IP Yokogawa VI451-11","description":"\u003ch3 data-path-to-node=\"1\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp data-path-to-node=\"2\"\u003eThe \u003cb data-path-to-node=\"2\" data-index-in-node=\"4\"\u003eVI451-11 (VI451-11)\u003c\/b\u003e is a high-performance \u003cb data-path-to-node=\"2\" data-index-in-node=\"46\"\u003eVnet\/IP Communication Module\u003c\/b\u003e specifically designed for the Yokogawa CENTUM VP integrated production control system. Serving as the critical bridge for real-time control communication, this module enables the connection of Field Control Stations (FCS) and Human Interface Stations (HIS) over a 1 Gbps redundant Ethernet-based network. The \u003cb data-path-to-node=\"2\" data-index-in-node=\"384\"\u003eVI451-11\u003c\/b\u003e is engineered to ensure deterministic data transmission, which is vital for maintaining process stability in large-scale industrial plants such as oil refineries, LNG terminals, and chemical processing facilities. By utilizing the Vnet\/IP protocol, it combines the openness of standard Ethernet with the high reliability and \"no-loss\" data requirements of a Distributed Control System (DCS).\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"3\"\u003eNetwork Logic \u0026amp; Redundancy\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe \u003cb data-path-to-node=\"4\" data-index-in-node=\"4\"\u003eYokogawa VI451-11\u003c\/b\u003e architecture is built for \"High Availability.\" It features dual-port redundancy (Bus A and Bus B) to prevent communication loss in the event of a cable break or switch failure. The suffix \"-11\" denotes the specific hardware revision and interface configuration, optimized for the V-series and high-speed Vnet\/IP environments. Unlike standard commercial network cards, the \u003cb data-path-to-node=\"4\" data-index-in-node=\"394\"\u003eVI451-11\u003c\/b\u003e manages time synchronization across the entire DCS network, ensuring that alarms and process events are time-stamped with millisecond precision. This module offloads the communication protocol stack processing from the main processor, allowing the controller to focus entirely on executing control logic without network-induced latency.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"6\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,0,0\"\u003e\u003cb data-path-to-node=\"6,1,0,0\" data-index-in-node=\"0\"\u003eModel\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,1,0\"\u003e\u003cb data-path-to-node=\"6,1,1,0\" data-index-in-node=\"0\"\u003eVI451-11\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,2,0,0\"\u003e\u003cb data-path-to-node=\"6,2,0,0\" data-index-in-node=\"0\"\u003eBrand\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,2,1,0\"\u003eYokogawa\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,3,0,0\"\u003e\u003cb data-path-to-node=\"6,3,0,0\" data-index-in-node=\"0\"\u003eSeries\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,3,1,0\"\u003eCENTUM VP \/ Vnet\/IP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,4,0,0\"\u003e\u003cb data-path-to-node=\"6,4,0,0\" data-index-in-node=\"0\"\u003eInterface\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,4,1,0\"\u003eVnet\/IP (1000Base-T)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,5,0,0\"\u003e\u003cb data-path-to-node=\"6,5,0,0\" data-index-in-node=\"0\"\u003eTransmission Speed\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,5,1,0\"\u003e1 Gbps (Full Duplex)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,6,0,0\"\u003e\u003cb data-path-to-node=\"6,6,0,0\" data-index-in-node=\"0\"\u003eConnection Port\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,6,1,0\"\u003e2 x RJ45 (Redundant Bus A \u0026amp; B)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,7,0,0\"\u003e\u003cb data-path-to-node=\"6,7,0,0\" data-index-in-node=\"0\"\u003eMax Transmission Distance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,7,1,0\"\u003e100 m (Per segment using UTP Cat 5e\/6)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,8,0,0\"\u003e\u003cb data-path-to-node=\"6,8,0,0\" data-index-in-node=\"0\"\u003eCurrent Consumption\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,8,1,0\"\u003e0.5 A (Maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,9,0,0\"\u003e\u003cb data-path-to-node=\"6,9,0,0\" data-index-in-node=\"0\"\u003eOperating Temp\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,9,1,0\"\u003e0 to 50 deg C (32 to 122 Celsius)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,10,0,0\"\u003e\u003cb data-path-to-node=\"6,10,0,0\" data-index-in-node=\"0\"\u003eWeight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,10,1,0\"\u003e0.28 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,11,0,0\"\u003e\u003cb data-path-to-node=\"6,11,0,0\" data-index-in-node=\"0\"\u003eShipping Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,11,1,0\"\u003e1 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003eHow does Vnet\/IP differ from standard industrial Ethernet?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eVnet\/IP is a proprietary protocol layer developed by Yokogawa that runs on top of the standard UDP\/IP stack. While standard Ethernet can suffer from packet collisions, the \u003cb data-path-to-node=\"8\" data-index-in-node=\"231\"\u003eVI451-11\u003c\/b\u003e ensures that control data packets are prioritized and delivered with guaranteed timing, which is essential for PID loop stability.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eCan the VI451-11 be hot-swapped while the FCS is running?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eYes, in a redundant configuration, a faulty \u003cb data-path-to-node=\"9\" data-index-in-node=\"102\"\u003eVI451-11\u003c\/b\u003e can be replaced while the partner module maintains network communication. However, it is critical to follow the Yokogawa \"Online Replacement\" procedure to avoid unintended bus disturbances during the physical swap.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eWhat cabling is required for optimal performance?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eFor the 1 Gbps speed of the \u003cb data-path-to-node=\"10\" data-index-in-node=\"78\"\u003eVI451-11\u003c\/b\u003e, high-quality Category 5e or Category 6 (Cat6) shielded twisted pair (STP) cabling is mandatory. Ensure that the total distance between the module and the network switch does not exceed 100 meters to maintain signal integrity.\u003c\/p\u003e\n\u003chr data-path-to-node=\"11\"\u003e\n\u003ch3 data-path-to-node=\"12\"\u003eField Engineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eRedundancy Verification:\u003c\/b\u003e After installation, verify the \"Active\" and \"Ready\" LEDs on the front panel. Use the CENTUM VP maintenance tools to confirm that both Bus A and Bus B paths are communicating. A \"Link\" light on only one port indicates a physical layer issue that compromises system safety.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eSwitch Configuration:\u003c\/b\u003e When connecting the \u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"42\"\u003eVI451-11\u003c\/b\u003e to Layer 2\/3 switches, ensure that Spanning Tree Protocol (STP) is disabled on the specific ports or configured for \"PortFast\" to prevent the switch from blocking control traffic during network re-convergence.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eGrounding \u0026amp; EMI:\u003c\/b\u003e Ensure the RJ45 connectors are fully seated and that the shielding of the Cat6 cable is properly grounded at the cabinet entry point. This is crucial for protecting the \u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"186\"\u003eVI451-11\u003c\/b\u003e RISC processors from the high-frequency noise generated by Variable Frequency Drives (VFDs) in the plant.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"14\"\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp data-path-to-node=\"15\"\u003eThe \u003cb data-path-to-node=\"15\" data-index-in-node=\"4\"\u003eVI451-11\u003c\/b\u003e represents the pinnacle of DCS communication engineering. Its ability to maintain a 1 Gbps throughput while providing hardware-based time synchronization makes it indispensable for modern high-speed processes. The module's ruggedized PCB coating protects against the corrosive atmospheres often found in upstream oil and gas operations. Furthermore, the \u003cb data-path-to-node=\"15\" data-index-in-node=\"367\"\u003eVI451-11\u003c\/b\u003e is designed for long-term lifecycle support, ensuring that plants commissioned today can maintain network compatibility and spare part availability for decades to come.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52695402905963,"sku":"VI451-11","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/yokogawa-vi451-11-vnet-ip-communication-module-jze3nncqfuv_61fbf785-8546-4dfc-84b0-efcacacb9ee5.jpg?v=1766133851","url":"https:\/\/www.plcprotech.com\/fr\/products\/yokogawa-vi451-11-vnet-ip-communication-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}