TERM
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DEF BY
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DEFINITION
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10BaseT
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Generic
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LAN Interface connector and hardware signal
definition
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2BaseT
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Generic
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Coaxial Ethernet LAN running at 8 mB/s
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ADSL
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Telco
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Asymmetrical Digital Subscriber Line, telephone
Receive data rate is higher than transmission rate.
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CR
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Generic
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Control Room
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DCS
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Controls
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Distributed Control System
The autoclaves use lots of small computers and programmable
devices instead of one large computer.
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DIN
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Generic
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European set of standards for connectors,
equipment, and devices
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DSL
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Telco
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High speed digital telephone line available in a
few areas and within a limited distance of a telephone company
switch. Less $ than
IDSN
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EIC
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AeroSoft
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Event Initiated Control batch recipe control system
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Ethernet
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Generic
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Hardware & low level layer protocol for a LCN
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EV
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Control
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Electric Valve, is a MOV
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HMI
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Generic
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Human Machine Interface refers to hardware and
software graphic application, also known as MMI, Man Machine
Interface.
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ICD
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all
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Interface Control Document
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IE
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Microsoft
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Internet Explorer, a browser for data access on the
Internet or an Intranet
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ISDN
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Telco
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Telephone line with analog voice and high speed
data; limited availability.
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IT-LAN
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AeroSoft
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Information Technology LAN.
The LAN between the PCPC and the Server &Remote HMIs.
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LCN
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Generic
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Local Control Network; this may be a Process
Network connecting to real I/O or a facility wide network.
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LPN
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AeroSoft
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The LAN that connects to the UUC and is limited to
process control
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MMI
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Generic
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Man Machine Interface
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MOV
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Control
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Motor Operated Valve, open or closed
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MOV
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Electronic
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Metal Oxide Varister, i.e. Transient Absorber or
"Spike Suppressor" (Note: these will pass nanosecond
spikes of 1kv amplitude. See Snubber).
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PC-LAN
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AeroSoft
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Process Control LAN.
The LAN between the PCPC and the I/O at the process under
control. Typically only
the PCPC and I/O are on this cable.
A redundant PCPC may be put on this cable.
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PCPC
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AeroSoft
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Process Control Personal Computer. Typically the lowest level programmable device, located at
the major process under control.
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PCV
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Control
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Pneumatic Operated Valve, variable
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PFOD
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all
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Process Functional Operation Description
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Phase
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Control
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A numeric register that is used to present a
message to the operator during execution of the Control Schedule.
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PID
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Generic
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Proportional, Integral, Derivative
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PLC
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GENERIC
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Programmable Logic Controller,
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POTS
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Telco
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Plain Old Telephone Service; usually dialup and
<56kb
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PU
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Hw
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Processing Units The allocation of point and
computing resources in the PM and LM.
Defined and allocated differently in both places.
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PV
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generic
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Process Variable
This is the measure of the process, e.g. temp or press or
vacuum
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RECIPE
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Control
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The list of steps that change temperature, pressure
and vacuum to cook the parts.
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| Snubber |
Electronic |
A
circuit component consisting of a resistor and capacitor in series
that is placed across the coil of a relay or solenoid. This
component dissipates transient pulse power and can be more effective
than a MOV in noise suppression. |
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T1
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Telco
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A 1mb/second high speed telephone line
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TDC 3000
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HW
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Honeywell's DCS "Total Distributed
Control"; these are the control consoles and related equipment.
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Telco
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Generic
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The telephone company
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TLA
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Hw
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Three Letter Acronym
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Trend
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HMI
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A graphical historical representation of data
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UAIM
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Hw
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Universal Analog Input Module
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UCN
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Hw
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Universal Control Network
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UUC
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Generic
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Unit Under Control
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WDT
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Generic
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Watch Dog Timer
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Windows 2000
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Microsoft
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Operating system based on NT but with user
interface of 98
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Windows 98
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Microsoft
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Operating system for single user with limited
security
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Windows CE
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Microsoft
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Operating system dedicated to portable and small
applications
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Windows NT
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Microsoft
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Operating system multi-user and multitasking with
extensive security
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