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Instruction Manual
Viewing Device Variables and Diagnostics
D103409X012
August 2012
Device Variables
Field Communicator
Device Variables (3)
The following menus are available to define and/or view information about the instrument.
Note
Device Variables is not available for instrument level AC.
Analog In
Analog Input shows the value of the instrument analog input in mA (milliamperes) or % (percent) of ranged input.
Travel Set Point
Travel Set Point shows the requested valve position in % of ranged travel post characterization.
Travel
Travel shows the value of the DVC6200 digital valve controller travel in % (percent) of ranged travel. Travel always
represents how far the valve is open.
Drive Signal
Drive Signal shows the value of the instrument drive signal in % (percent) of maximum drive.
Pressures
Shows the value of the instrument supply and output pressures in psi, bar, kPa, or kg/cm2. Also shows the output
pressure differential. To display pressures may require selecting the variable; a detail display of that variable with its
values will appear.
D Pressure A— Shows the value of Output Pressure A in psi, bar, kPa, or kg/cm2.
D Pressure B— Shows the value of Output Pressure B in psi, bar, kPa, or kg/cm2.
D A Minus B—Shows the value of the output pressure differential in psi, bar, kPa, or kg/cm2.
D Supply —Displays the instrument supply pressure in psi ,bar, kPa, or kg/cm2. Not available in instrument level HC.
Variables
The Variables menu is available to view additional variables, including; Auxiliary Input, Temperature, Maximum
Temperature, Minimum Temperature, Cycle Counter, Travel Accumulator, Raw Travel Input, Run Time, and Number of
Power Ups.
If a value for a variable does not appear on the display, select the variable and a detailed display of that variable with its
value will appear. A variable's value does not appear on the menu if the value becomes too large to fit in the allocated
space on the display, or if the variable requires special processing, such as Aux Input.
D Auxiliary Input—A discrete input that can be used with an independent limit or pressure switch. Its value is either
open or closed.
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