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:
“In the early days of the world, the Almighty said to the first of our race “In the sweat of thy face shalt thou eat bread”; and since then, if we except the light and the air of heaven, no good thing has been, or can be enjoyed by us, without having first cost labour.”
—Abraham Lincoln (1809–1865)
“Every nation ... have their refinements and grossiertes.... There is a balance ... of good and bad every where; and nothing but the knowing it is so can emancipate one half of the world from the prepossessions which it holds against the other—that [was] the advantage of travel ... it taught us mutual toleration; and mutual toleration ... taught us mutual love.”
—Laurence Sterne (1713–1768)