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Fieldbus Foundation Issues Preliminary Specification For ISA100.11a Transducer Block

Specification defines transducer block for interfacing ISA100.11a devices to Foundation fieldbus

AUSTIN, Texas, August 2, 2013 — The Fieldbus Foundation today announced that it has issued a Foundation fieldbus Preliminary Specification (PS) addressing fieldbus transducer blocks for ISA100.11a wireless devices. ISA100.11a is an industrial wireless networking technology standard developed by the International Society of Automation (ISA).

As part of the Foundation for Remote Operations Management (ROM) solution implementing wireless and remote I/O, the new technical specification defines a fieldbus transducer block used within Foundation for ROM devices to communicate with ISA100.11a instruments. In addition, it describes the method for configuring tools and asset-managing hosts to access ISA100.11a devices, as well as structures to identify and maintain device status in ISA100.11a networks connected to Foundation for ROM devices.

The new transducer block specification will enable automation end users to interface ISA100.11a devices to Foundation fieldbus for better integration with a control system, or with Foundation devices. The technology also supports a networked method for asset-managing hosts to access an installed base of ISA100.11a devices for configuration and maintenance purposes.

HSE provides an efficient way to bring large concentrations of discrete and analog field I/O from modular devices back to the control room using a high-speed HSE connection. Employing HSE equipment functioning like a smart remote terminal unit (RTU), the technology brings all forms of conventional I/O into the native fieldbus environment easily. This solution makes discrete I/O, analog I/O, H1 fieldbus, HART® and WirelessHART® available over common Transport Control Protocol/Internet Protocol (TCP/IP) networks. The addition of the new ISA100.11a transducer block further expands the integration of process instrumentation within a Foundation control system infrastructure.

Access to Foundation technical specifications is a key benefit of Fieldbus Foundation membership. The specification is available free for review by foundation members, and can be accessed in the Preliminary Specifications area of Fieldbus Forums. During the review cycle, anyone identifying private rights (i.e., patents, copyrights and trademarks) within the specification should contact the Fieldbus Foundation at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it .

General information about established Foundation fieldbus technical specifications is available on the Fieldbus Foundation's Specification page or by e-mail inquiry to This e-mail address is being protected from spam bots, you need JavaScript enabled to view it .

About Foundation for ROM

Within the Foundation architecture, H1 and HSE provide a distributed function block capability with HSE serving as a larger pipeline offering increased speed and throughput. The Foundation for ROM development expands these capabilities by establishing open, non-proprietary specifications for a wired or wireless HSE backhaul network integrating various wireless Foundation for ROM devices with interfaces to wireless field device networks. For more information, visit the Foundation for ROM page on the Fieldbus Foundation’s website.

About the Fieldbus Foundation

The Fieldbus Foundation is a global not-for-profit corporation consisting of leading process end users and automation companies. Within the Fieldbus Foundation, end users, manufacturers, universities and research organizations work together to develop an automation infrastructure that allows you to view your process in high definition; manage information effectively; and optimize people, processes and technology. For more information, visit their web site at


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