Omron NT-series Programmable Terminal V022-E3-1 - Manual (Page 178)

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Section 5-2
6-2 Memory Tables and Bar Graph
This section describes allocation of the memory table to PC words, and changes to
the contents of words necessary to display characters, numerals, and graphs by
communicating with the PC using the Host link/NT link.
For the functions relating to memory tables and bar graphs, refer to 4-4 Memory
Tables (page 128) and 4-5 Bar Graphs (page 131), respectively.
Writing Words to the Character-String Memory Table
Since the character-string memory tables can be allocated to the words in the PC,
the PC can write data to the character-string memory tables or the initial values
can be set when creating the screen data.
Character-string
memory table
Word
The contents are the same while they are displayed.
Can be updated by the PC.
Display area where the character-string
memory table No. 2 is allocated
NT600S PC


During the operation, the display contents are automatically updated so that the
contents of the character-string memory table being displayed are the same as
that of the PC word.
Displaying and Referencing Character String Memory Table Contents
Since the character-string memory tables can be allocated to the words in the PC,
the PC can write data to the character-string memory tables or the initial values
can be set when creating the screen data.
Automatic updating is performed to ensure that the currently displayed NT600S
character string memory table contents and PC word contents always match each
other.
There are two methods for referencing character string memory tables used for
character string display, as follows:
- Direct specification
- Indirect specification (with Ver.5 direct connection only)