FloBoss 107 Instruction Manual
Revised June-2017 Glossary A-7
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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