Campbell SAT ARGOS Bedienungsanleitung Seite 200

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Seitenansicht 199
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 192
Type of Data Specified In
Line Item #4
Recommended Value to Set In Line Item #5
Floating-point Any value between 0 and 6 according to the precision you require.
Long Integer 0. (Long integer values are whole numbers.)
String 0. (This is not applicable to a string.)
Setting the Field Width, Line Item #6
Setting the Field Width (Line Item #6) depends upon the expected range of
your data and the number of decimal places specified in Line Item #5.
If the data specified in Line Item #4 is floating-point or long integer, use the following steps to set the
value of the Field Width (Line Item #6):
1. Using whole numbers only, determine (or estimate) the maximum and minimum values of the data
specified in Line Item #4. These values can be represented as D
MAX
and D
MIN
respectively.
2. Count the number digits, including any minus sign
, in D
MAX
and D
MIN
and represent the number of
counted digits as N
MAX
and N
MIN
respectively.
3. Take the larger value of the two values N
MAX
and N
MIN
and represent it as value M.
4. If the value set in Line Item #5 (Decimal Places) is greater than zero, add this value, plus one (for the
decimal point), to the value represented by M.
5. Set Line Item #6 to value represented by M plus one (for a leading space).
String outputs are transmitted and logged in a fixed width format specified by the Field Width defined in
Line Item #6 of the Data Output menu. If the data specified in Line Item #4 is a string
, use the following
steps to set the value of the Field Width (Line Item #6):
1. Look at all of the possible strings that can come from the string data specified in Line Item #4.
Represent the number of possible strings as N.
2. Determine the length of each possible string by counting the number of characters in each of the
possible N strings. Represent the counted string lengths as S
1
, S
2
...S
N
.
3. Determine the largest value out of the list S
1
, S
2
... S
N
and represent it as S
MAX
.
4. Set the value of Line Item #6 to the value represented by S
MAX
plus one.
Strings too long will be truncated.
Strings too short will be padded with spaces.
Setting the Data Storage Class Code, Line Item #7
Since the total amount of logging memory contained in the ZENO
®
-3200 is
finite, there is a trade-off between the amount of memory used to log each
data value and the accuracy and range with which values are logged.
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