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3. SPECIFICATIONS
MELSEC-A
(5)
Screen switching signal (X15)
(a) Goes ON when the AD57G starts switching the monitor screen by
using the screen swltchinq device to designate the monitor screen.
Goes OFF when monitor screen switching has been completed (see
Section 5.13).
(b) The number of the changed monitor screen (stored in address 1 H of
the AD57G buffer) can be read using a sequence program (see
Section 3.5).
(c) After switching the screen, to display data (part canvas screens,
numerical data, character-string data, graphs, etc.) in accordance
with the monitoring conditions (data collection trigger, monitor
device, etc.) see Section 6.9.1.
(6)
Trigger cycle signal (X16)
(a) Goes ON or OFF every time all data at the leading/trailing edge (set
•
for the currently-displayed monitor screen) of the data collection
trigger is displayed.
(b) When the screen switching signal (X15) is ON, the trigger cycle
signal is OFF.
(c) After switching the screen, if monitoring conditions (data collection
trigger, monitor device, etc.) data (part canvas screens, numerical
data, character-string data, graphs, etc.) is displayed, see Section
6.9.1.
Screen number setting device
n
Nextscreen number to be switched (currently displayed)
Currently·displayed screen number
storage area
(A057G buffer address 1H)
Screen switching signal (X15)
Previously-displayed screen number
Currently-displayed screen number
•
Trigger cycle signal (X16)
I
I
!
I
, II
-I
Screen being switched
I
I
I
' .
I
I
I
I
I
"
The time required to display all data, when using
the data collection trigger once.
The length varies, depending on the monitoring
conditions setting number and setting contents.
3-18
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