Omron NT620S Operation Manual page 233

Numeral and Character-string Setting
11211
Numeral setting
strobe flag
5-4-2 Notification of Character-string to the PC
222
Numeral setting 2 ... Reference table "numeral memory table No. 4"
Numeral memory table entry number 3 (4-digit input)
Line 1
Qty.
Defect limit
1 2
Numeral memory table entry number 4 (4-digit input)
S PC program
Create the following PC ladder program.
@MOV(21)
111
DM0105
S Program operation
(1) When the numeral setting strobe flag (bit 11211) comes ON (1), the contents
of CH 0111 (the word where the content upgrade memory table is located)
are transferred to DM 0105. The number of the numeral memory table that
contains the upgraded data is stored in DM 0105 (in this case it is 003 or
004).
If the numeral memory table is allocated to a PC word, the value input to it
can be read easily by referring to the allocated word.
In this case, the contents of numeral memory table No. 3 are stored in DM
0005 and the contents of numeral memory table No. 4 are stored in DM
0006.
This section describes how the character-string data input at an NT620S/620C is
ascertained by the PC.
In order to determine when character-string data has been input at the
NT620S/620C, the character-string setting strobe flag in the PT status notify
area is used. In order to determine the upgraded character-string memory table
number, the "content upgrade memory table" in the PT status notify area is used.
When character-string data is input at the NT620S/620C, this is automatically
notified to the PT status notify area (PT → PC) allocated in the PC memory as
follows.
Notification of upgrade:
Upgraded character-string table number:
When the PC reads the "content upgrade memory table" at the leading edge of
the character-string setting strobe flag, it determines the character-string
800
30
3 4 5 6 7 8 9 0
Notification word for content upgrade
memory table
Word that stores the numeral memory table
number
PT status character-string setting strobe flag turned
ON (1)
Stored in the "content upgrade memory table"
Section 5-4
unit
unit
CLR +/–
(1)