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3. AD57G MONITORING FUNCTIONS
MELSEC-A
The snap shot function is used to store displayed data to the file.
(1) Snap shot timing
Displayed data i s stored to the file at a specified leading edge.
In addition, the user's specification enables displayed data to be stored
to a file when the [F3] key is pressed.
(2)
Screen data that can be stored to the snap shot file
The screen data is stored to the file using the snap shot function, when
a monitor screen created by the user is displayed.
If a snap shot trigger occurs when any one of the AD57G system screens
(see Section 6) is displayed, that trigger will be ignored.
(3)
Screen data storage target
Using the snap shot function, screen data is stored to the file area in the
memory card (corresponding to MEMORY CARD1 of the AD57G).
IA
RAM-type memory card is necessary when the snap shot function is(
used.
(4)
Snap shot file capacity
The displayed contents of graphic and text screens are stored to the
snap shot file.
The file capacity depends on the monitor screen display contents.
Contents can be estimated as shown below:
(a) Monitor screen created by any one of the following monitoring func-
tions (contains about
5K
bytes):
Numeric data display; circle graph display;
character string display; polygonal line graph display;
block data display; spline graph display
clock data display; scatter graph display (only i n batch display)
Error alert display (only when no error alert message is displayed)
(b) A monitor screen with (a) any function other than the above-men-
tioned monitor functions, and (b) a monitor screen in which an error
alert message is displayed using the error alert display function:
contains about 136K bytes
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