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Appendix 1 / Glossary
Term
DTM
Earth leakage
Galvanic isolation
GSD converter
GSD file
Intrinsic Safety
Jitter
Mobile Advanced
Diagnostic Module
Noise
Subject to reasonable modifications due to technical advances.
66
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P R O F I B U S P
O W E R
Explanation
Device Type Manager. Software which
allows parametization and Diagnosis
of field devices via a GUI. Parameteri-
zation can be done online, i.e. with in-
stant effect of changes, or offline.
Short circuit via earth. Causes signal
deviations (asymmetry) in case of red-
undant supply.
Physical separation of circuits. Charge
carriers cannot flow from one circuit
into another
Software from Pepperl+Fuchs which
converts GSD files from
PROFIBUS DP to PROFIBUS PA
Text file which describes communicati-
on behavior and supported functions
of a PROFIBUS device
Safety concept. Uses energy limitation
to ensure that no temperatures or
sparks are present which could lead to
ignition of an explosive atmosphere.
Current, Voltage and Power in an in-
trinsically safe circuit are so low that
ignition cannot take place in case of
short circuit, circuit breakage or earth
leakage. Intrinsically safe devices can
be removed from or added to circuits
during operation.
Deviation from ideal timing of an
event. Here: Deviation from the ideal
zero passage of the signal as com-
pared to the last zero passage
Modul which offers the functionality of
the Advanced Diagnostic Module but
which is designed for mobile use in the
field since it is USB powered
Often caused by overlay of a number
of disturbances. Leads to signal dete-
rioration
H
S
U B
E G M E N T
Copyright Pepperl+Fuchs, Printed in Germany
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O U P L E R
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