DPM-100 Digital Panel Meter Modbus
®
Display
Instruction Manual
31
Setting the Display Decimal Point
(
disp.dp
)
Decimal point may be set one to five decimal places
or with no decimal point at all. Pressing the
Up
arrow
moves the decimal point one place to the right until no
decimal point is displayed, and then it moves to the
leftmost position. The decimal point is programmable
only for the Display Value.
Setting the Float Decimal Point
(
Flot..dp
)
If floating point data type is selected, select the
number of decimals to correspond to the expected
floating point data; the numbers to right of the LSD
will be ignored by the scanner.
Example:
If you have a number such as
12.3456
, you have to
tell the scanner how many digits to the right are of
interest to you. In this case selecting 4 places will
make use of all the digits. For most applications the
display decimal point will be set accordingly (
i.e.
4
places).
If 2 decimal places are selected, the number 12.3456
is displayed as 12.35; notice that the number is
rounded up.
Scaling the PV Display Values
(
sCale
)
The data that the scanner receives can be scaled to
display in engineering units. Input 1 must be less than
Input 2, Input 2 must be less than Input 3, etc. (known
as monotonic values). Press
Enter
to save the
changes or
Menu
to exit without saving. When the
Linear function is selected for PV1 & PV2, up to 32
points may be programmed to handle non-linear data.
Only two points are available for all other PVs and for
either the Square Root or Programmable Exponent
functions. Round Horizontal Tanks are scaled using
the length and diameter of the tank.
Scale Menu
The display will show
Error
if the scaling process is
unsuccessful. Undesired operation may occur if the
error is not corrected. Correct the error by either
changing one of the inputs in question or changing
the number of points to exclude an erroneous input
point.
Note:
Scaling Short and Long input values (input 1,
input 2, etc.) should be done without the
decimal point.
Multi-Point Linearization (
Linear
)
The scanner is set up at the factory for 2-point linear
scaling. Up to 32 linearization points may be selected
for PV1 and PV2. All other PVs have two linearization
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