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04/08 UDC3200 Universal Digital Controller Operator Manual 53
3.11 Options Group
Function
Prompt
Lower Display
Selections or
Range of Setting
Upper Display
Parameter
Definition
AUX OUT
ATTENTION
Prompts for the
Auxiliary
Output
Selection
appear only if
one of the
Auxiliary
Output boards
is installed.
AUXILIARY OUTPUT SELECTION
This selection provides an mA output representing one of several
control parameters. The display for auxiliary output viewing will be
in engineering units for all but output. Output will be displayed in
percent.
ATTENTION Other prompts affected by these selections: 4mA VAL
and 20mA VAL.
ATTENTION Output cannot be configured when Three Position
Step Control is used.
DISABLE
NO AUXILIARY OUTPUT
INPUT 1
INPUT 1—This represents the configured range of input 1.
INPUT 2
INPUT 2 represents the value of the configured range of input 2.
PV
PROCESS VARIABLE—Represents the value of the Process
Variable. PV = Input XxRatioX + BiasX
DEV
DEVIATION (PROCESS VARIABLE MINUS SETPOINT)—
Represents –100 % to +100 % of the selected PV span in
engineering units.
Zero deviation will produce a center scale (12 mA or 50 %) output.
A negative deviation equal in magnitude to the Auxiliary Output
High Scaling Factor will produce a low end output (4 mA or 0 %)
output. A positive deviation equal in magnitude to the Auxiliary
Output Low Scaling Factor will produce a high end output (20 mA
or 100 %).
OUTPUT
OUTPUT—Represents the displayed controller output in percent
(%). Cannot be used with
Three Position Step Control.
SP
SETPOINT—Represents the value of the setpoint currently in use
(LSP1, LSP2, LSP3, RSP or CSP) and is shown in the same units
as those used by the PV.
LSP 1
LOCAL SETPOINT ONE—Auxiliary output represents Local
Setpoint 1 regardless of active setpoint.
RSP
REMOTE SETPOINT – Represents the configured RSP regardless
of the active SetPoint.
IN ALG1
INPUT ALGORITHM 1 OUTPUT—Represents the output from
input algorithm 1.
CO RANGE
4-20mA
0-20mA
AUXILIARY CURRENT OUTPUT RANGE—Allows the user to
easily select 4-20mA output or 0-20mA output operation without
the need for recalibration of the instrument.
ATTENTION Changing the Auxiliary Current Output Range will
result in the loss of Field Calibration values and will restore Factory
Calibration values.