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5. MONITOR FUNCTIONS AND THEIR USE
MELSEC-A
(3) Sequence program created by using a PC CPU
A sequence program which satisfies the following items is necessary.
However, it is not necessary to create the following sequence program
if the sequence program data for doing monitoring control can be used
as is.
(a) Data collection trigger
A sequence program is necessary to turn ON and OFF the bit device
by which data collection liming is to be determined when designat-
ing the leading edge and falling edge of a bit device.
(b) Monitor device
A sequence program is necessary which stores 0 to 32767 data to
the word device which designates the character string to be dis-
played.
[The ranges in which the monitoring condition data set and the number of possible settings)
The following table indicates (a) the ranges of the set values in each window,
and (b) the number of possible monitoring condition settings for displaying a
character string by using a word device.
(1) Set character string window
Number of Possible
Monitoring Condi-
Setting Items
Setting Ranges/Options (Reference Section)
Remarks
tlon Settings
One
All
Screen
Screens
Data condition
~Iways:
Bit
dev~~e
leading edge/falling edge
triaaer
see Section 6.7
Disolav position
Lines
1
to
25,
Columns 1 to 80
Maanification
xt , x2, x4, x8
(see Section 6.3.4)
o
to
32767
can be
stored.
However,
if
the
32767
x
comment is not
the num-
Monitor device
Word device
registered, the cur-
32767
ber of
rently-displayed
screens
character string
(comment) is
erased.
Word device
(See Section 6.7.)
Comment when ON
Comment when OFF
Setting is unneces-
[ see
]
Col. Attribute
sary.
Section
Blink
6.9.1
(2)' Set comment window
Number of Pos-
sible Monitoring
Setting Item
Setting Ranges/Options (Reference Section)
Remarks
Condition Settinos
One
I
All
Screen
Screens
Comment
1
tOI~O
characters (number of characters per ccm-
On one line
ment
Color
Color Nos. a to 14 (see Section 6.4.1)
Can be set to
each comment.
Attribute
Normal/Highlighted
(Max. 32768)
Blink
None/low
~~eed/medium
speed/high speed (see
One per screen
Section 6.5
5-40
•
•
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