Troubleshooting Communications; Troubleshooting Function Block Parameters - GE FVP110 Maintenance Manual

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Troubleshooting Communications

Problem
Communication with the
FVP110 cannot be
performed.
Communication with the
FVP110 is frequently cut
off.
The FVP110 can be
detected, but neither
function blocks nor
transducer block can be
seen.

Troubleshooting Function Block Parameters

Table 56 Troubleshooting Function Block Parameters
Problem
A value cannot be written
to a parameter in the
FVP110.
Table 55 Troubleshooting Communications
Presumed Cause
Wiring is incorrect.
The power is off or the power
supply voltage is less than 9 V.
The address detection range
is not correctly set.
The fieldbus is experiencing a
large amount of noise.
The node address of the
FVP110 is left as the default
(0xF8-0xFB).
Presumed Cause
You have attempted to write a
value outside the valid range.
The target mode does not
allow write access.
FVP 110 Fieldbus Valve Positioner Manual
Remedy
Correct wiring.
Supply proper voltage.
Correct address detection
range.
Using an oscilloscope or
the like, check the
waveform on the fieldbus.
Change it to an operable
address. See the
descriptions for address
settings.
Remedy
Check the setting range of
parameters.
Change the target mode.
See the parameter lists.
176
See Section
❑ "Wiring" on
page 54
❑
"System Con-
figuration" on
page 87
❑
"Wiring" on
page 54
❑
"Standard
Specifica-
tions" on
page 73
"Setting of Tags
and Addresses"
on page 94
—
"Setting of Tags
and Addresses"
on page 94
See Section
"Function Block
Parameters" on
page 183
"Function Block
Parameters" on
page 183