工业网络

与用户仪表交互测量和控制信号是用户自动化策略的核心。横河电机支持各种Fieldbus技术,包括传统的4~20 mA、有线数字网络和无线ISA100.11a标准。这些技术可根据用户需求应用于设备、主机和解决方案层级。

  • 通过横河电机易于连接的网络转换器,能够将RS485设备或模拟信号与DeviceNet通信PLC相连。

  • 无线解决方案的灵活性可减少对基础设施的投入,同时可以对工厂运营有更深入的了解。

  • 横河电机提供一系列通信协议,包括FOUNDATION现场总线、HART、BRAIN、ISA100、Profibus和Modbus等,用于支持不断发展的数字通信技术中的智能设备。

概述:

March 2007

Here's how Shell upgraded from a pneumatic instrumented plant to a fully digital control system.

概述:

2011

Decades of operation, modernization and expansion have left many chemical plants with a somewhat haphazard automation mix of different controls, process control systems, remote I/Os and field devices. The various components may use different communication protocols such as HART, PROFIBUS or FOUNDATION Fieldbus, and are often based on different device integration technologies. 

概述:

The changes in social environment, such as globalization of enterprise activities, depletion of natural resources, and eco-oriented movement will affect the structure of mass production. Control systems must be prepared with flexibility and scalability in both size and function to adjust to the changes.

横河技报
概述:

To configure a compact, low-power medium attachment unit for field buses, i.e., a fieldbus MAU, an IC comprising a power generator, transmitter/receiver and other functions is needed. While we at Yokogawa had already developed a fieldbus MAU IC, we have now developed another MAU IC that includes large-scale design changes made mainly to comply with the low-power signaling requirements of the fieldbus specifications. 

横河技报
概述:

Progress in digital signal processing and network technologies has enabled advanced functions which cannot be achieved by traditional field devices with 4-20 mA signal, to be implemented on field devices. Standardization of international fieldbus specifications, notably the FOUNDATION™ Fieldbus, has enabled users to build optimum field networks comprised of freely chosen field devices from various device vendors.

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