4.
A2CcPU
/MELSEC-A
4.4
Parameter
Setting
Range
Parameters are used to allocate user memory area
or
the use
range of the functions.
The parameter data is stored
in
the
first
3K
bytes
in
the user
memory area.
(1)
Default values
Each parameter has default value
as
indicated
in
Table
4.8.
It
is not necessary to change parameter data; programs can be
run
with
default settings.
(2)
Changing parameter setting
Parameter settings can be changed
in
the range
as
indicated
in
Table
4.8
to meet specific operation needs.
A
peripheral device
should be used to change the setting.
See the Operation Manual
for
the peripheral device to be used
for the procedure to set the parameter data.
E
t
1.
Conversion
of
main sequence program capacity, file register capacity and
comment capacity from "steps" and "points" to "bytes" is described below.
ttom
Nu-
of
Byta
Setting
Units
Main sequence program capacity
1K
bytes
64
points
Comment capacity
2K
bytes
1K
points
File register capacity
2K
bytes
1K
steps
2.
When comment capacity is set with a peripheral device,
1K
byte area is
automatically taken in addition to the setting; the comment capacity displayed
is, therefore,
1K
bytes larger than the set value.
Wain wquence program
capacity
I
6K
steps
I
1
to
8K
steps
(1
K
step
increments)
File
register
capacity
I
None
I
(1K
point increments)
1
to
4K
points
Comment
capacity
I
None
I
0
to
4032
points *1
(64
point
increments)
Status latch
Sampling
trace
Memory
capacity
I
I
0/8
to
12K
bytes
J
Data memory
File register Noes
(2
to
8K
bytes)
None
NoNes
-
Memory
caDacitv
I
I
0/8K
bytes
..
Device setting Device number
Execution
conditions
samplings
Number
of
0
to
1024
times
None Each scan
-
Set time intervals
(128
time increments)
f
Tabk
4.8
Paramotw
Setting
Rango
Ipcw
00
00
00
00
00
-
duta
-
4.4.1
L
4-47
18
(NA)
8623&A
---
..
_.
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