45
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.7 Types and Setting of Parameters
1
In
troduct
io
n
2
Ov
e
rv
ie
w
3
In
st
ru
ct
ion
Li
st
4
D
evi
ce
s
in
De
ta
il
5
Speci
fied t
h
e
D
evi
ce &
C
onst
a
nt
6
Bef
o
re
Pr
ogr
a
m
m
ing
7
Bas
ic
In
st
ru
cti
o
n
8
FNC0
0
-FNC0
9
P
ro
g
ra
m F
lo
w
9
FNC1
0
-FNC1
9
M
ov
e
&
C
om
par
e
10
FNC
20-
FNC
2
9
Ar
ith.
&
Logi
c
O
per
at
io
n
2.7.8
Parameter settings by GX Developer
This subsection explains the parameter setting procedures by GX Developer (Ver.8.23Z).
1
Opening the parameter setting screen
In the project tree area provided on the left end of the screen, double-click [Parameter]
→
[PLC parameter].
If the project tree is not displayed, select [View]
→
[Project data list] from the menu bar.
2
Setting memory capacity
*1.
The initial value is 8000 steps in GX Developer Ver.8.22Y and earlier.
Set item
Contents of setting
Setting range
Memory capacity
Set the program memory capacity. Initial value: 16000
*1
Refer to
Subsection
2.7.3.
Comments capacity
Set the capacity of comments to be stored in the PLC. Initial value: 0
50 device comments/block (500 steps)
File register capacity
Set the file register capacity. Initial value: 0
500 file registers/block (500 steps)
Program capacity
The number of steps available for sequence program is displayed here.
Special Function
Memory capacity
Set whether the special unit initial value setting and positioning setting are valid or
invalid.
–
Special Function
Block Settings
(8 Blocks)
Put a check mark to the initial value setting function for special function block/unit.
(When this function is valid, the special unit setting is displayed on "I/O assignment"
tab.)
–
Positioning
Instruction Settings
(18 Blocks)
Put a check mark to make valid TBL (FNC152) instruction setting function.
(When this function is valid, "Positioning" tab is displayed.)
–
