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MX QX閥門執(zhí)行器 Limitorque閥門執(zhí)行器美國(guó)福斯利米托克

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品牌: Limitorque
執(zhí)行機(jī)構(gòu): MX和QX系列
單價(jià): 面議
所在地: 上海
有效期至: 長(zhǎng)期有效
最后更新: 2018-11-21 15:31
瀏覽次數(shù): 836
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Limitorque MX和QX
閥門執(zhí)行器下一代電子執(zhí)行器

MX and QX Network Communications The MX/QX provide a comprehensive network option portfolio to the User. Network solutions are improved with the addition of HART to complement Modbus, Foundation Fieldbus H1, DeviceNet, Profibus DP_V1 and Profibus PA. MX/QX provide the User with predictable, reliable and safe operation for years to come, in applications that are subject to the most rigorous requirements and environmental extremes. DDC (Distributed Digital Control) Modbus Communication DDC is Flowserve Limitorque’s digital communication control system that provides the ability to control and monitor up to 250 actuators over a single twisted-pair cable. The communication network employs Modbus protocol on an RS-485 network and is redundant. The field unit also communicates all actuator status and alarm diagnostic messages over the same communication network. DDC Network • Single-ended loop (consult factory) • Modbus protocol • High speed – up to 19.2 k baud Foundation Fieldbus communication with Device Type Manager (DTM) technology The MX and QX can be fitted with Foundation Fieldbus protocol that complies with the IEC 61158-2 Fieldbus H1 standard. The field unit device is able to support several topologies such as point-to-point, bus with spurs, daisy chain, tree or a combination of these. Profibus DP V1 communication with DTM The MX and QX can be fitted with Profibus DP_V1 protocol field units that comply with EN50170 Fieldbus Standard for RS-485 communications. The device supports several topologies such as point-to-point, bus with spurs, daisy chain, tree or a combination of these. The DTM supports Flowserve's ValveSight diagnostic engine. Profibus PA communication with DTM A Profibus PA protocol is available and complies with EN50170 Fieldbus Standard and Fieldbus physical layer per IEC 61158-2 for communications. The device supports several topologies such as point-to-point, bus with spurs, daisy chain, tree or a combination of these. HART HART (Highway Addressable Remote Transducer) is a digital communication protocol where field units may be connected by a standard instrumentation twisted-pair cable to form a HART communication system network. The HART network employs a bi-directional communication protocol, operating at 1200 bits/sec, that provides data access between intelligent actuators and host control/monitoring systems. In addition to a digital signal, the network simultaneously provides a 4-20 mA analog signal that is proportional to the field unit’s primary measured value.  The HART protocol is defined as an open network standard, and Limitorque’s actuators are certified for use by the HCF, HART Communication Foundation. DeviceNet DeviceNet is a low-cost communications protocol which permits up to 64 nodes (devices) to be installed over a single network and is based upon CAN (Controller Area Network), a broadcast protocol developed for the automotive industry. DeviceNet™ protocol is defined as an open network standard, and Limitorque’s device is certified for use by the ODVA, Open Device Standard Association. Master Station III MX and QX units equipped with DDC can be controlled via Flowserve Limitorque’s Master Station III. It includes: • Host interface – Industry-standard Modbus Rtu, ASCI, UDP, and TCP/IP protocols and control • 5.6" TFT touch-screen display for network  configuration status • Configurable polling sequence priority • Network time protocol for time synchronization of alarms/diagnostics data to host device • Modular hot-swappable redundant design • Email notifications of alarm conditions • Data/event logging

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