FloBoss 103/104 Instruction Manual
Revised August-2017 Glossary A-7
A set of standards that enables communication or file transfers between two
computers. Protocol parameters include baud rate, parity, data bits, stop bit, and the
type of duplex.
Public Switched Telephone Network.
Transient variation of a signal whose value is normally constant.
A module that provides line pressure, auxiliary pressure, and pulse counts to a ROC.
Process Variable or Process Value.
A row of slots on a ROC into which I/O modules can be plugged. Racks are given a
letter to physically identify the location of an I/O channel (such as “A” for the first rack).
Built-in I/O channels are assigned a rack identifier of “A” while diagnostic I/O channels
are considered to be in “E” rack.
Random Access Memory. RAM is used to store history, data, most user programs, and
additional configuration data.
Report-by-exception. RBX always refers to Spontaneous RBX in which the ROC
contacts the host to report an alarm condition.
Results Register; stores the Signal Value Analog (SVA).
Radio Frequency Interference.
Ring Indicator modem communications signal.
Remote Operations Controller microprocessor-based unit that provides remote
monitoring and control.
Microsoft® Windows®-based software used to configure functionality in ROC units.
Read-only memory. Typically used to store firmware. Flash memory.
A positive displacement meter used to measure flow rate, also known as a Roots
meter.
Resistance Temperature Detector.
Ready to Send modem communications signal.
Room Temperature Vulcanizing, typically a sealant or caulk such as silicon rubber.
Serial Communications Protocol using three or more signal lines, intended for short
distances. Also referred to as the EIA-232 standard.
Serial Communications Protocol using four signal lines. Also referred to as the EIA-422
standard.
Serial Communications Protocol requiring only two signal lines. Can allow up to 32
devices to be connected together in a daisy-chained fashion. Also referred to as the
EIA-485 standard.
Received Data communications signal.
Scientific Apparatus Maker’s Association.
Supervisory control and data acquisition; referring to a computer system that monitors
and controls oil and gas pipeline systems.
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