97
Outline of Host Link / NT Link Operation
Section 5-1
Allocating numeral memory tables/character string memory tables
Allocating memory tables to a data area secured in the PLC memory allows the
display to be automatically updated.
5-1-4
NT11S Status Control and Notification to PC
This section describes the fundamentals of the display elements, NT11S status
control, and notification which are the basics of the NT11S functions.
For the detail method of use of the PT status control area and the PT status notify
area, refer to Sections 5-4 NT11S Status Control (page 122) and 5-5 Notification of
the Operating Status to the PC (page 126).
Controlling the Display Elements by Using Allocated Bits and Words
The NT11S will operate as follows in the display element control operation.
[NT11S operation]
(1) The NT11S checks the allocation bits and words of the display elements and
makes an inquiry to the PC.
(2) The PC answers the NT11S about the bit and word data.
(3) The NT11S changes the display status according to the bits and words ob-
tained from the PC.
[NT11S operation example]
DM0100 to DM0102?
NT11S
PC
(“a”, “b”)
(“c”, “d”)
(“e”, “f”)
Character-string memory table2
First word
: DM0100
Number of saved words: 3
TIM003?
Numeral memory table0
First word
: TIM003
Number of saved words: 1
Summary of Contents for NT11S
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