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Section 5-2
Program operation
When the program is executed by displaying the screen on the PT, the following
operation is performed.
(1) Each time contact 00100 comes ON, the display on the NT600S changes to
the next item in the following sequence.
NT20S → NT600S → NT610G → NT610C
(2) Each time contact 00101 comes ON, the display on the PT changes to the
next item in the following sequence.
NT610C → NT610G → NT600S → NT20S
6-2-4 Copying the Memory Table
The following describes the procedure to change displayed numerals or character
-strings by copying the contents of the memory table.
Numerals and character-strings can be changed also by changing the contents of
the allocated words. Refer to “Changing displayed numerals or character -strings”
explained before.
To change the numerals or character-strings displayed on the NT600S, copy the
data between the numeral or character-string memory tables by using the “copy
memory table setting” of the PT status control area.
NT600S PC
Memor y t abl e
copy source
Copy destination
(for display)
PT status control area
Screen switch setting
PT status control setting
Copy source number
Copy destination number
A
A
A
Copy memory
table setting
Write a memory table number etc. to the copy memory table setting area in the PT
status control area in the PC memory. Data will be copied between the memory
tables in the NT600S and the displayed value will change accordingly.
This procedure is convenient to switch predetermined values or character-strings
according to the situation. By preparing several units of contents, various con-
tents can be displayed by switching them to suit the situation.
[“Copy memory table setting” of the PT status control area]
1514131211109876543210Bit
Word
n+1
Copy memory
table setting
n+2
0 Copy source memory table #(3-digit BCD)
Copy type Copy destination memory table #(3-digit BCD)
Copy type:
0: Copy between the character-string memory tables
1: Copy between the numeral memory tables
Copy source and destination memory table numbers: 000 to 127
Character-string memory table: 000 to 255
Numeral memory table: 000 to 511