Viewing Device Variables And Diagnostics - Fisher FIELDVUE DVC6200 Instruction Manual

Viewing Device Variables and Diagnostics

Note
Do not use the following raw travel
input indication for calibrating the
travel sensor. The following should
only be used for a relative indication to
be sure the travel sensor is working
and that it is moving in the correct
direction. Perform the Travel Sensor
Adjust procedure in the Calibration
section to calibrate the travel sensor.
D Raw Tvl Input—Raw travel input indicates the
travel sensor position in analog-to-digital converter
counts. When the travel sensor is operating correctly,
this number changes as the valve strokes.
D Run Time—Indicates in hours or days the total
elapsed time the instrument has been powered up.
D Num of Power Ups—Number of Power Ups
Indicates how many times the instrument has cycled
power.
Device Information (3-7)
The Device Information menu is available to view
information about the instrument. From the Online
menu, select Device Variables and Device
Information. Follow the prompts on the Field
Communicator display to view information in the
following fields: HART Tag, Device ID, Manufacturer,
Model, Device Rev (Device Revision), Firmware Rev
(Firmware Revision), Hardware Rev (Hardware
Revision), Inst Level (Instrument Level), and HART
Univ Rev (HART Universal Revision).
D Hart Tag—A HART tag is a unique name (up to
eight characters) that identifies the physical
instrument.
D Device ID—Each instrument has a unique Device
Identifier. The device ID provides additional security to
prevent this instrument from accepting commands
meant for other instruments.
D Manufacturer—Identifies the manufacturer of the
instrument.
September 2010
Table 6-2. Functions Available for Instrument Level
Instrument
Functions Available
Level
Communicates with the Field Communicator.
AC
Provides basic setup and calibration.
Communicates with the Field Communicator and
ValveLink software.
In addition to above, provides: travel cutoffs and limits,
minimum opening and closing times, input
HC characterization (linear, equal percentage, quick
opening, and custom), trending with ValveLink Solo,
and the following alerts: travel deviation; travel alert
high, low, high high, and low low; drive signal; auxiliary
terminal; cycle counter; and travel accumulation.
Includes all functions listed above plus (with ValveLink
software) all offline diagnostic tests (dynamic error
AD
band, drive signal, step response, and valve signature)
plus online trending
Includes all functions listed above plus all Performance
PD
Diagnostics online/in-service valve testing (valve
friction, electronics, and mechanical condition)
Includes all functions listed above plus partial stroke
ODV
test and lead/lag input filter.
D Model—Identifies the instrument model.
D Device Rev—Device Revision is the revision
number of the software for communication between
the Field Communicator and the instrument.
D Firmware Rev—Firmware Revision is the revision
number of the firmware in the instrument.
D Hardware Rev—Hardware Revision is the
revision number of the electrical circuitry within the
instrument printed wiring board.
D Inst Level—Indicates the instrument level
AC—Auto Calibrate
HC—HART Communicating
AD—Advanced Diagnostics
PD—Performance Diagnostics
ODV—Optimized Digital Valve
Table 6-2 lists the functions available for each
instrument level.
D HART Univ Rev—HART Universal Revision is
the revision number of the HART Universal
Commands which are used as the communications
protocol for the instrument.
D DD Information (3-8)
DD Information contains the device description in the
Field Communicator. To access DD Information from
the Online menu, select Device Variables and DD
Information.
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