Omron NT20S, Operation Manual

Page: 190 / 308

171
Memory Tables and Bar Graphs Section 5-2
(3) When bit 00001 turns ON, the contents of DM0002 are incremented by 1. The
value displayed on the NT20S in numeral memory table entry #2 increases by
1.
5-2-3 Changing Displayed Numerical Values or Character Strings
(Changing the Contents of Allocated Words ... Indirect Specifica-
tion)
The following explains how to change numerical values or character strings dis-
played by the NT20S by changing the contents of the referenced allocated words
using indirect specification. This method can only be used with Ver.5 of the direct
connection function.
If using direct specification, see “Changing Displayed Numerical Values or Char-
acter Strings (Changing the Contents of Allocated Words ... Direct Specification)”
(page 169).
Numerical values and character strings can also be changed by making a copy of
the memory tables. Refer to “Copying the memory table” (page 174).
In indirect specification, a numeral memory table is specified to display a numeri-
cal value or character string. The numerical value stored in this numeral memory
table (“39” in the figure below) is taken as the number of the memory table whose
contents are to be displayed.
Either of the following two methods can be used to change the display when indi-
rect specification is used:
1) Changing the memory table number for the memory table whose contents are
to be displayed
(In the example in the figure below, this would mean changing the contents of
numeral memory table 41.)
2) Changing the contents of the memory table used for display
(In the example in the figure below, this would mean changing the contents of
character string memory table 39.)
Here, the method for changing the display using method 1) is explained. For de-
tails on method 2), see the explanations on direct specification (page 169) and
copying memory tables (page 174).
NT20S PC
AaBb
Indirect
numeral memory table 41
0039
AaBb
Moji
0 3 0 9
Allocated word
(numeral memory table 41)
Character
string memory table 39
Character
string memory table 40
0039
Reference: This method is convenient when switching the display at the same location, for
example when monitoring a series of words, or when using unique codes to speci-
fy individual character strings, etc.