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A leading supplier of industrial computers since 1976, VersaLogic focuses on high-quality board-level products for embedded OEM applications.
Their five year product availability guarantee and outstanding warranties demonstrate a commitment to service.
Product platforms include EBX, PC/104, PC/104-Plus, EPIC, and SPX. For four years running VersaLogic has received the coveted "Platinum" level vendor rating based on independent user surveys by technology research firm Venture Development Corporation (VDC).
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 Definition: Fieldbus (or field bus) is the name of a family of industrial computer network protocols used for real-time distributed control, now standardized as IEC 61158.
A complex automated industrial system — say a manufacturing assembly line — usually needs an organized hierarchy of controller systems to function.
In this hierarchy there is usually a Human Machine Interface (HMI) at the top, where an operator can monitor or operate the system.
This is typically linked to a middle layer of programmable logic controllers (PLC) via a non time critical communications system (e.g. Ethernet). At the bottom of the control chain is the fieldbus which links the PLCs to the components which actually do the work such as sensors, actuators, electric motors, console lights, switches, valves and contactors.
Source: Wikipedia (http://en.wikipedia.org/wiki/Fieldbus)
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