Industrial Networking

Getting measurement and control signals to and from your instruments is central to your automation strategy. Yokogawa supports a wide variety of Fieldbus technologies, including conventional 4-20mA, wired digital networks, and wireless ISA100.11a. These technologies are employed at the device, host, and solution level, depending on your needs.

Our easy-to-connect network converters connect RS485 devices or analog signals to DeviceNet communication PLCs.

The flexibility of wireless solutions enables less investment in infrastructure while providing greater insights into plant operations.

Yokogawa offers a variety of communication protocols; including, FOUNDATION Fieldbus, HART, BRAIN, ISA100, Profibus, and Modbus to help support smart devices in this evolving digital communication technology.

The VJET Ethernet/RS-485 converter is a compact, plug-in type communication converter that uses the Modbus/TCP for connecting to host devices with Ethernet and uses the Modbus/RTU for connecting to devices with RS-485.


Plug-in type, RS232C/RS485 dual directional converter with two ports of RS232C and RS485, and perform isolation of communication signal, level conversion and active control of driver.

Genel Bakış:

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.

Yokogawa Teknik Raporları
Genel Bakış:

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. 

Yokogawa Teknik Raporları
Genel Bakış:

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.

Genel Bakış:

March 2007

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

Genel Bakış:


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. 

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