6-6
Section
Numeral Display
202
Example: Specifying numeral memory table address 2.
5
5
1
2
3
4
5
5
123
1
2
3
4
5
123
Direct designation
Numeral
memory table
Display
The contents of the specified
memory table entry are displayed.
Indirect designation
Numeral
memory table
Display
The contents of the specified
memory table entry are treated as
the table address reference value
and the contents of the referenced
memory table entry are displayed.
Indirect designation is possible only in the following cases. Do not apply for other
cases.
When C200H I/F unit is used.
When the NT21, NT20, NT30, NT30C, NT31, NT31C, NT620S, NT620C,
NT625C, NT631, or NT631C is used.
When an NT20S or NT600S that uses the direct connection ver. 5. is used.
With conventional models, up to 50 indirect designation settings can be made
per screen, including both numeral display and character string display.
For numeral display elements, it is possible to select whether numeric values
are displayed in decimal (signed/unsigned) or hexadecimal.
23456
23456
5BA0
Numeral
memory table
Display in decimal
Display in hexadecimal
Reference:
With the NT21, NT31, NT31C, NT631, and NT631C, numerals are always
stored as signed binary data. When allocating numeral memory table entries to
PC (PLC) words, it is possible to select whether the data is recognized in BCD
or recognized in hexadecimal using the [Storage Type] property.
According to the combination of the storage type and display method, nu-
meric values are stored and displayed in the manner shown below.
00005BA0
2 3 4 5 6
5 B A 0
0 0 0 2
3 4 5 6
5 B A 0
0 0 0 0
PC (PLC) words
(2-word allocation)
Recognition in BCD
Numeral
memory table
Display
Recognition in hexadecimal
Display in decimal
Display in hexadecimal
With NT30, NT30C, NT620S, NT620C, and NT625C, the only difference in
decimal/hexadecimal display of a numeric value is whether or not F at the most
