PLC's are now preferred in many oil-field operations
In recent years, programmable logic controllers (PLC's) have evolved to such a point that in small control systems typical of oil field production operations, they are often technologically and economically preferred over hard-wired relays. Advantages of PLC's include reduced development and training time that is possible because of standardized development and documentation. The standardization also simplifies troubleshooting and spare part requirements. The National Electrical Manufacturers Association (NEMA) defines a PLC as a digital electronic apparatus with a programmable memory for storing instructions to implement specific functions such as logic sequencing, timing, counting, and arithmetic, to control machines and processes.
- Research Organization:
- Arco Oil and Gas Co., Midland, TX (US)
- OSTI ID:
- 6902050
- Journal Information:
- Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 86:25; ISSN OIGJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DESIGN
DIGITAL SYSTEMS
ELECTRONIC CIRCUITS
LOGIC CIRCUITS
MEMORY DEVICES
OIL WELLS
PROGRAMMING
STANDARDIZATION
WELLS