Emerson ROC827 RX or RXD, Script, Soft Points, System, Variables, TX or TXD, Turbine meter

	ROC827 Instruction Manual
R (continued)
RS-232	Serial Communications Protocol using three or more signal lines, intended for short
	distances. Also referred to as the EIA-232 standard.
RS-422	Serial Communications Protocol using four signal lines. Also referred to as the EIA-422
	standard.
RS-485	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.
RX or RXD	Received Data communications signal.
S
SAMA	Scientific Apparatus Maker’s Association.
Script	An uncompiled text file (such as keystrokes for a macro) that a program interprets in
	order to perform certain functions. Typically, the end user can easily create or edit scripts
	to customize the software.
Soft Points	A type of ROC point with generic parameters that can be configured to hold data as
	desired by the user.
SP	Setpoint, or Static Pressure.
SPI	Slow Pulse Input.
SPK	Speaker.
SRAM	Static Random Access Memory. Stores data as long as power is applied; typically backed
	up by a lithium battery or supercapacitor.
SRBX	Spontaneous Report-By-Exception. SRBX always refers to Spontaneous RBX in which
	the ROC contacts the host to report an alarm condition.
SVA	Signal Value Analog. Stored in the Results Register, it is the analog value that is passed
	between functions in an FST.
SVD	Signal Value Discrete. Stored in the Compare Flag, it is the discrete value that is passed
	down the sequence of functions in an FST.
System	Configured parameters that describe the ROC; set using ROCLINK software.
Variables
T
T/C	Thermocouple Input.
TCP/IP	Transmission Control Protocol/Internet Protocol.
TDI	Time Duration Input.
TDO	Time Duration Output.
Tf	Flowing temperature.
TLP	Type (of point), Logical (or point) number, and Parameter number.
TX or TXD	Transmitted Data communications signal.
Turbine meter	A device used to measure flow rate and other parameters.
U
Upload	Send data, a file, or a program from the ROC to a PC or other host.
V-Z
V	Volts.

Issued Mar-06 Glossary A-7