Omron NT-series Programmable Terminal V022-E3-1 - Manual (Page 203)


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Section 5-3

Program operation
The operation when the program is executed is presented below.
Execute program
Press Run touch switch. Press Stop touch switch.
Stop flag : 1 (ON)
Stop touch switch : Lit
Run flag : 1 (ON)
Run touch switch : Lit
Stop flag : 0 (OFF)
Stop touch switch : Unlit
Run flag : 0 (OFF)
Run touch switch : Unlit
Stop flag : 1 (ON)
Stop touch switch : Lit
6-3-6 Notification of Numbers to the PC
This section describes how the numerical data input at an NT600S is ascertained
by the PC.
In order to determine when numerical data has been input at the NT600S, the nu-
meral setting strobe flag in the PT status notify area is used. In order to determine
the upgraded numeral memory table number, the “content upgrade memory table”
in the PT status notify area is used.
When numerical data is input at the NT600S, this is automatically notified to the PT
status notify area (PT
→
PC) allocated in the PC memory as follows.
Notification of upgrade: PT status numeral setting strobe flag
turned ON (1)
Upgraded numeral table number: Stored in the “content upgrade memory
table”
When the PC reads the “content upgrade memory table” at the leading edge of the
numeral setting strobe flag, it determines the numeral memory table number in
which the numerical data that was changed at the NT600S is stored.
Numeral memory table 1
PT status notify area
Allocated word (numeral table 1)
Start
Start + 1
NT600S PC
12345678
Currently displayed screen
PT status
Content upgrade
memory table
Table No.
Numeral setting
strobe flag
12345678
12345678