This paper discusses how, in recent years, there has been a proliferation of "smart" field devices available for use
in process control systems. These devices provide the ability to transmit data to process
controllers directly using one of the various standard "field bus" protocols instead of
using traditional hard-wired signals such as 4-20mA or 120VAC. This technology can
provide operators and managers with a vast array of data with no increase in hardwiring
costs and no need for conventional I/O cards. The reduction of conventional I/O cards
translates into a decrease in the space requirements for control system enclosures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 160 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 2 |
| Published : | 06/17/2004 |
