Page viii FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide Revision 2.0
Term Definition
Hz Hertz
inH2O Inches of Water
LGP In-Line Gauge Pressure
Link Active Scheduler A device which is responsible for keeping a link operational. The LAS executes
the link schedule, circulates tokens, distributes time messages and probes for
new devices.
LP Low Pressure (also, Low Pressure side of a Differential Pressure Transmitter)
LRL Lower Range Limit
LRV Lower Range Value
Macrocycle The least common multiple of all the loop times on a given link.
mAdc Milliamperes Direct Current
Manufacturer's Signal
Processing
A term used to describe signal processing in a device that is not defined by FF
specifications.
mmHg Millimeters of Mercury
mV Millivolts
Network Management A part of the software and configuration data in a Foundation Fieldbus device
that handles the management of the network.
Network Management
Agent Part of the device software that operates on network management objects.
Network Management
Information Base
A collection of objects and parameters comprising configuration, performance
and fault-related information for the communication system of a device.
Nm Newton. Meters
NPT National Pipe Thread
NVM Non-Volatile Memory
Object Dictionary Definitions and descriptions of network visible objects of a device. There are
various object dictionaries within a device. The dictionaries contain objects and
their associated parameters which support the application in which they are
contained.
Objects Entities within the FBAP, such as blocks, alert objects, trend objects,
parameters, display lists, etc.
P Pressure
Pa Measured static pressure in PV4 algorithm
Parameters A value or variable which resides in block objects
Pc Absolute critical pressure of the gas
Pd Static pressure at downstream point
Pdp Measured differential pressure in Pascals in PV4 algorithm
Pf Absolute pressure of flowing gas
PM Process Manger
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