Moore Industries SDY, Руководство пользователя

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SDY
The Interface Solution Experts 13
PC-Programmable Signal
Isolator/Converter with Display
5. Use the “Restore” button to revert to the table
stored in the SDY’s memory.
Caution:
Restoring the configuration file erases any values
in the table, overwriting them with whatever is
stored in the most recent file.
6. Use the “EGU” field to set the Engineering
units of the readout from the main window
when connected to the Configuration
Program.
7. Set the “Output Format” field to the desired
resolution using the pull-down menu.
8. Enter the number of points to use to constitute
the Linearization Table in the “Points” field.
The Rules for Custom Linearization:
• The difference between any consecutive
values in the table (in either column)
must be less than 50% of the entire
configured range.
• One “Output EGU” value per “Input mV”
value only.
• It is not necessary to use all 85
available points, but the first and last
points in the curve always default to the
0% and 100% input scale (input range).
• If you decide not to use all 85 points,
you must change the number of points
in the “Points” field to the number you
wish to use.
Note:
Moore Industries suggests filling in the EGU
(Engineering Units), then the number of points, and
finally the values in the table.
9. When the table is complete, click on the
“QuitTabl” button and answer “Yes” to the
following dialog (or something similar).
Figure 8. Save File Dialog Box
10. Click on the “Prog” (Program) button to
download the linearization table settings into
the transmitter memory.
CAUTION:
Any time a connected SDY is “programmed”
by downloading a Configuration File into memory,
ALL of the configuration parameters resident
in the transmitter memory at the time of the
download are OVERWRITTEN.
This includes things like: tag name, calibration
date, trim values, etc.
Once a transmitter’s memory is “erased”
in this fashion, the old operating parameters
are unrecoverable, and will have to be
regenerated from scratch if needed again.