| http://www.w3.org/ns/prov#value | - Of course, many of these modern process control systems may also include non-smart field devices such as, for example, 4-20 milliamp (MA) devices, 0-10 volts direct current (VDC) devices, etc., which are typically directly coupled to controllers as opposed to a shared digital data bus or the like. [0004] In any event, field devices include, for example, input devices (e.g., devices such as sensors
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