ABB Totalflow NGC8206 Manual Del Usuario página 302

TERM
Status Output
STP
Structured Query
Language
Sulfur
Supercompressibility
Factor
Supervisory Control and
Data Acquisition
Surge
SV
SW VBATT
Switch
Synchronous
Syntax
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Any digital output that uses "On" or "Off" conditions to determine the
status of the assigned description. Changing from one to the other
represents a change in the condition.
Standard Temperature and Pressure
IBM developed this language in the 60's as a way of accessing data
from a relational database. It has a very simple syntax for simple
functions but can become complex for sophisticated applications. This
language is standardized by international standards bodies, and is
almost universal in application. Almost all databases support SQL. The
RTDB supports SQL and this makes it extremely flexible within a
corporate network. Authorized users throughout the organization can
write SQL statements to acquire data from this database that they need
for Marketing, Accounting, Engineering, or other functions.
A pale, yellow, non-metallic chemical element that may be found in a
gas stream and which needs to be removed or reduced from the gas
stream for corrosion control or health or safety reasons.
A factor used to account for the following effect: Boyle's law for gases
states that the specific weight of a gas is directly proportional to the
absolute pressure, the temperature remaining constant. All gases
deviate from this law by varying amounts, and within the range of
conditions ordinarily encountered in the natural gas industry, the actual
specific weight under the higher pressure is usually greater than the
theoretical. The factor used to reflect this deviation from the ideal gas
law in gas measurement with an orifice meter is called the
"Supercompressibility factor Fpv". The factor is used to calculate
corrected from volumes at standard temperatures and pressures. The
factor is of increasing importance at high pressures and low
temperatures.
A common PC function in process control applications, where
programmable logic controllers (PLCs) perform control functions but are
monitored and supervised by a PC.
A sudden change (usually an increase) in the voltage on a power line.
A surge is similar to a spike, but is of longer duration.
Sample Vent (located on NGC8200 series Feed-Through Assembly).
Switched Battery Voltage. Cycles power to equipment to save power.
An electrical device for connecting and disconnecting power to a circuit,
having two states, on (closed) or off (open). Ideally having zero
impedance when closed and infinite impedance when open.
(1) Hardware - A property of an event that is synchronized to a
reference clock. (2) Software - A property of a function that begins an
operation and returns only when the operation is complete.
Comparable to the grammar of a human language, syntax is the set of
rules used for forming statements in a particular programming
language.
DEFINITION
2103650-001 – rev. AB