Omron NT20, Руководство пользователя

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Memory Tables and Bar Graphs Section 5-2
Contents registered to the screen: Character-string memory table entry #4
Character-string memory table settings
• PLC Ladder Program
Create a PLC ladder program as follows:
• Program Operation
1,2,3... 1. When an error occurs (bit 09000 turns ON), the NT20 displays the mes-
sage “Error”.
2. When the error is cleared (bit 09000 turns OFF), the NT20 display mes-
sage reverts to “Normal”.
5-2-5 Upgrading Bar Graphs
(Changing the Contents of Allocated Words)
The following describes the procedure to upgrade the bar graph display on the
NT20 by changing the contents of the allocated words.
To change the bar graph display on the NT20, change the contents of the PLC
words to which the numeral memory table entries have been allocated.
The bar graph display cannot use hexadecimal numbers. If hexadecimal num-
bers are set, the bar graph will not be displayed.
# Contents Number of
Character Digits
4 Normal 6 digits
10 Error 6 digits
11 Normal 6 digits
Line 1
Normal
Character-string memory table entry #4
@MOV(21)
#0004
09000
@MOV(21)
#0010
(1)
Copy type, copy destination memory table entry #
Copy destination word
Copy source memory table entry #
Copy source word
@MOV(21)
#0004
09000
@MOV(21)
#0011
(2)
Copy type, copy destination memory table entry #
Copy destination word
Copy source memory table entry #
Copy source word
Error flag
Error flag
101
102
101
102