Omron NT631 Operation Manuals page 296

Memory Tables
[Display Functions]
[Input Functions]
[Output Functions]
[Processing Functions]
[Relationship with Other Elements]
288
Character string memory tables themselves have no display function.
To display the contents of character string memory tables, use 7-9 "Character
String Display" (page 356).
Character strings can also be displayed as messages by using the "alarm list"
(page 395) and "alarm history" (page 395) functions.
When a character string memory table is allocated to a word or words at the host,
the contents of the word are read and stored.
However, reading is only executed for those character string memory tables that
are being used for the currently displayed screen (when copying a character string
memory table, the contents of the allocated word(s) of the copy source memory
table are read).
When a character string memory table is allocated to a word or words at the host,
the contents of the character string memory table are written to the word(s).
However, writing is only executed in the following cases.
S When the contents of the character string memory table have changed as a re-
sult of operations at the NT631/NT631C, such as memory table copying by
touch switch operation, or use of the input setting function
S When the "Initial" setting of string table is checked when the power to the
NT631/NT631C is turned ON, the NT631/NT631C is reset, or on transition from
the System Menu to the RUN mode (the contents of all character string memory
tables that are allocated to the host and whose "Initial" setting is checked are
written.)
Character string memory tables have no data processing function.
S When "character string display" is used, the contents of character string memory
tables can be displayed in real time as character strings (page 356).
S When "alarm list" or "alarm history" is used, the contents of the character string
memory table can be displayed as a message (page 395).
S When "character string input" is used, character strings can be input into the
character string memory table from the screen of the NT631/NT631C (page
422). It is also possible to input character strings from a bar code reader con-
nected to the NT631/NT631C.
S When the touch switch copy setting function is used, the contents of a character
string memory table can be copied (page 328).
S By operation of the "PT status control area", data can be copied between
memory tables from the host (page 270).
S If the contents of character string memory tables are changed by operation at
the NT631/NT631C, the change is notified to the "PT status notify area" (page
269).
Section 7-3