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475 FIELD COMMUNICATOR
SECTION 4FIELDBUS FUNCTIONALITY
OVERVIEW This section provides instruction on basic fieldbus functionality in the
475 Field Communicator. It is based on the operation of the Fieldbus
Application version 6.1.
SAFETY MESSAGES Procedures and instructions in this section may require special
precautions to ensure the safety of the personnel performing the
operation. Information that raises potential safety issues is indicated by
a warning symbol (
). Refer to the safety messages before
performing an operation preceded by this symbol. Other warning
messages can
be found in the Troubleshooting section of this manual.
If a segment is connected to a host system, the changes made
with the 475 Field Communicator may not be recorded in the host
system’s permanent database. Verify the changes in the database.
Otherwise, this could cause unpredictable results and, depending
upon your application, process disruption leading to property
damage, serious injury, or death. Ensure all safety precautions and
work procedures have been followed.
Changing device parameters could adversely affect the control of
your process. Put the control loop in Manual/Out of Service before
applying changes. Verify the output before returning the control
loop to Auto. Failure to do so could result in property damage,
serious injury, or death. Ensure all safety precautions and work
procedures have been followed.
The 475 Field Communicator draws approximately 12 mA from the
fieldbus segment. Be sure the power supply or barrier on the
fieldbus segment has the capacity to provide this additional
current. If a heavily loaded fieldbus segment is drawing near the
capacity of the segment’s power supply, connecting the 475 Field
Communicator may result in loss of communication.
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