Omron NT620C, Operation Manual

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1-4 Section Communication Using the Direct Connection Function
16
Functions of the PT Status Notify Area (NT620S/620C to PC)
The “PT status notify area” is used to notify the changes of the NT620S/620C
status.
When a change is made in the NT620S/620C status, the change is written to this
area in the PC. By reading the data from the area, the NT620S/620C status can
be checked.
[Example of the PT status notify area application]
When a change is made in the NT620S/620C status, such change will be notified
to the PT status notify area as mentioned below.
Numeral memory table 13
PT status notify area
Content update memory table
Allocated word (numeral table 13)
PT status
Start
Start + 1
NT620S/620C PC
12345678
Currently display screen
12345678
12345678