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6. PRECAUTIONS WHEN DESIGNING A SCREEN
MELSEC-A
POINT
I
When several monitor functions are used whose data collection trigger
devices are set to "normally', the trigger timing (a) of those monitor
functions is delayed according to how many functions are used, and (b)
the length of data collection time is reduced because the AD57G
collects data (max. 40 bytes each time) from destination devices in
batch.
Monitor Device Settings for
Each Monitor Functions
Monitor Functions
Reference
Sections
Word
Word
Bit Device
Device
Device
'1
(1 Word)
(2 Words)
Part drawing
5.2.1
2
display
Part drawing
5.2.2
Group 1
locus display
Part drawing
5
6
movement
5.2.3
display
Numeric
5.3.1
2
4
•
data display
Group 2
Character
5.4.1
string display
5.4.2
2
Level display
5.6
2
4
*1 If any of the above-listed monitor functions is set for a single monitor
screen, data is collected from the devices of the same group in
batch and is displayed.
• Group 1: Part drawing display, part drawing locus display, part
drawing movement display comprise one group.
• Group 2: Numeric data display, character string display, level
display comprise one group.
•
6-22
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