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User Guide – MC5-IS Fieldbus Option for PROFIBUS PA
MC5-IS, FI5-IS and PROFIBUS PA
Beamex's MC5-IS and FI5-IS together are the master of a
PROFIBUS PA fieldbus segment. Since a PROFIBUS PA
segment supports only one master per segment, MC5-IS and
FI5-IS cannot be connected to a fieldbus segment that already
has a master device. Thus doing a verifying calibrating for a
PROFIBUS PA instrument requires that the instrument is dis-
connected from a control system (live fieldbus segment).
Calibration Procedure of a Fieldbus Instrument, General
This chapter presents the broad outline of a calibration proce-
dure when calibrating a PROFIBUS PA instrument using MC5-
IS and FI5-IS. The focus is on presenting requirements unique
for PROFIBUS PA. Being aware of the details presented here
allows you to perform a safe and fluent calibration procedure.
A more detailed description of connecting MC5-IS and FI5-IS
to a PROFIBUS PA as well as performing the actual calibration
is presented further on in this manual.
1. Preparing for the Calibration Procedure
If the instrument to be calibrated is part of a fieldbus segment
already having a master device, you must disconnect the in-
strument. The following list presents a safe disconnecting pro-
cedure.
See chapter Notes and Warnings on page 8 for possible risks
when working in a live segment.
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If the instrument is part of a control system (live seg-
ment), make sure the control loop the instrument be-
longs to is set to manual
Set the instrument's Transducer Block in Out of Service
(OOS) mode (if applicable). This informs the control sys-
tem that the instrument's input signal is not available
(usable). Note that certain instruments do not have an
Out of Service (OOS) mode at all. Then this phase is not
applicable for that particular instrument.
Make sure any other dependencies are set to manual or
other corresponding state.
If the Control System requires it, set the instrument as a
"Spare Device" in the control system ("Off Line" in
some systems).
General
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