Cost Advantage
The amount of cabling required is much lower in Fieldbus than in 4-20 mA installations. This is because many devices share the same set of cables in a multi-dropped fashion rather than requiring a dedicated set of cables per device as in the case of 4-20 mA devices. Moreover, several parameters can be communicated per device in a Fieldbus network whereas only one parameter can be transmitted on a 4-20 mA connection.
Read more about this topic: Fieldbus
Famous quotes containing the words cost and/or advantage:
“Each is under the most sacred obligation not to squander the material committed to him, not to sap his strength in folly and vice, and to see at the least that he delivers a product worthy the labor and cost which have been expended on him.”
—Anna Julia Cooper (1859–1964)
“Scientists are human—they’re as biased as any other group. But they do have one great advantage in that science is a self-correcting process.”
—Cyril Ponnamperuma (b. 1923)