Omron NT620C, Руководство по эксплуатации

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5-2 Section Memory Tables and Graphs
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Example: 12345678
Word 15 to12 11 to 8 7 to 4 3 to 0 Bit
Start 5 6 7 8
Start+ 1 1 2 3 4
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Displaying the numeral memory table
Numerals can be displayed in three different ways according to the contents of
the numeral memory table, as mentioned below.
The most significant digit (digit 4 of a single word or digit 8 of a double word) is
processed in different ways.
Hexadecimal display: All digits are handled as stored in the allo-
cated words.
Decimal display without signs: If the most significant digit is “F”, it is handled
as “0”, and the most significant digit other
than “F” and other digits are handled as
stored in the allocated words.
Decimal display with signs: If the most significant digit is “F”, it is handled
as “–” (minus sign), and the most significant
digit other than “F” and other digits are han-
dled as stored in the allocated words.
[Numeral memory table display examples]
- When the data are numeral data (0 to 9)
Start
Start + 1
Decimal without sign 123456
Decimal with sign –123456
Hexadecimal F0123456
3 4 5 6
F 0 1 2
- When the data contain characters (A to F)
Start
Start + 1
Decimal without sign 123B56
Decimal with sign –123B56
Hexadecimal F0123B56
3 B 5 6
F 0 1 2
If the hexadecimal data (A to F) are stored when the decimal display has been
set, the alphabets are displayed.
If the most significant digit is “F” when “decimal with signs” has been set, the
numeral is handled as a negative number. The maximum number of digits of
the negative number becomes smaller than that of the positive number by 1
digit.
Reference - If the number of digits of a numeral is greater than the total of the settings for
the number of digits of the integral portion and the number of digits of the deci-
mal portion, an error will be generated and “
:
” symbols will be displayed at all
digits. If the number of display digits is not 4 and “
:
” symbols are displayed,
check that the number of words in the numeral memory table is 1.
The actual display will vary according to the “zero suppress” setting and deci-
mal fraction setting as well as the contents mentioned above. Refer to the “NT-
series Support Tool Operation Manual” (V028-E1-02).
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Contents of the character-string memory table
A character-string is stored in the allocated words beginning with the first word
in half-size or normal-size characters.