Instruction Manual
D103176X012
Viewing Device Variables and Diagnostics
June 2017
33
Section 3 Viewing Device Variables and Diagnostics3‐3‐
Viewing Variables
Note
These variables are not available for instrument level AC.
Analog Input, Travel, Valve Set Point, Drive Signal and Output Pressure
The following variables are displayed on the Online menu:
Analog In shows the value of the instrument analog input in mA (milliamperes) or % (percent) of ranged input.
Travel shows the value of the DVC2000 digital valve controller travel in % (percent) of ranged travel. Travel always
represents how far the valve is open.
Valve SP shows the requested valve position in % of ranged travel.
Drive Sgl shows the value of the instrument drive signal in % (percent) of maximum drive.
Pressure shows the value of the instrument output pressure in psi, bar, or kPa.
Additional Instrument Variables
Field Communicator Setup & Diag > Display > Variables (1-3-1)
Note
These variables are not available for instrument level AC.
The Variables menu is available to view additional variables, such as the status of the auxiliary input, the instrument
internal temperature, cycle count, travel accumulation and device free time. 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.
D Temp—The internal temperature of the instrument is displayed in either degrees Fahrenheit or Celsius.
D Cycl Count—Cycle Counter displays the number of times the valve travel has cycled. Only changes in direction of the
travel after the travel has exceeded the deadband are counted as a cycle. Once a new cycle has occurred, a new
deadband around the last travel is set. The value of the Cycle Counter can be reset from the Cycle Count Alert menu.
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