Mitsubishi Electric MELSEC-A Series User Manual page 85

4. A2CCPU
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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 a default value as indicated in Table 4.9.
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
4.9 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.
IREMARKl
(1) Conversion of main sequence program capacity, file register capacity and comment
capacity from "steps" and "points" to "bytes" is described below.
Item Setting Unit. Number of Byte.
Main sequence program capacity 1K
steps 2K bytes
File register capacity 1K points
2K bytes
Comment capacity 64 points 1K byte
(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 byte larger than
the set value.
Table 4.9 Parameter Setting Range
~ t .
Default
Peripheral Device.
Value
Setting Range
Ref.r to
Item PU GPP HGP PHP
Main sequence program capacity 6K steps
1 to 8K steps
0
0 0 0
(1K step increments)
File register capacity None
1 to 4K points
0 0 0 0
(1K point increments)
Comment capacity None
o to 4032 points
*
1
-
0 0 0
4.4.1
(64 point increments)
Memory capacity
0/8 to 12K bytes
Status latch Data memory None NolYes
-
0 0
0
File register
Nerves (2 to BK bytes)
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