GE Baker Hughes Masoneilan SVI FF, Installation And Operation Manual

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Troubleshooting Communications
Table 23 Troubleshooting Communications
Problem Presumed Cause Remedy See Section
Communication with the SVI
FF cannot be performed. Wiring is incorrect. Correct wiring.
“Wiring the SVI
FF” on page 65
“System Con-
figuration” on
page 106
The power is off or the power
supply voltage is less than 9 V. Supply proper voltage.
“Wiring the SVI
FF” on page 65
“Physical and
Operational
Specifications”
on page 95
The address detection range is
not correctly set. Correct address detection
range. “Step 4: Set Tag
and Address” on
page 32
Communication with the SVI
FF is frequently cut off. The fieldbus is experiencing a
large amount of noise.
Missing terminators on the bus,
incorrect terminator placement
or extra terminators. Refer to
FOUNDATION Fieldbus specifi-
cations for a full discussion of
terminator requirements. Using an oscilloscope,
check the waveform on the
fieldbus. —
The SVI FF can be detected,
but neither function blocks
nor transducer block can be
seen. The node address of the SVI FF is
left in the default (0xF8-0xFB). Change the device to an
operable address. See the
descriptions for address
settings. “Step 4: Set Tag
and Address” on
page 32