6
FUNCTIONS
6.12 Writing in Program during CPU Module RUN
6.12.3 Precautions for online change
6
- 89
1
O
verv
iew
2
Per
fo
rma
nce
S
p
ecifica
tio
n
3
S
equ
en
ce P
ro
g
ra
m
Co
nfig
ura
tio
n a
nd
E
xecut
io
n Co
nd
iti
o
ns
4
I/O N
unb
er
Assig
n
m
e
nt
5
Me
mor
ie
s a
nd
File
s
Ha
nd
led
by CP
U Mo
du
le
6
Func
tions
7
Co
mmu
nic
a
tion
us
in
g
bu
ilt
-i
n E
th
e
rne
t po
rt
s o
f
CP
U mod
u
le
8
Co
mm
un
icatio
n
w
ith
Int
e
lli
ge
nt
Fun
ction
Mo
du
le
Figure 6.59 shows the trailing edge instruction operation based on the "Instruction
operational settings for online change" setting in GX Developer.
Figure 6.59 Operation comparison of trailing edge instruction
END
1 scan
END
END
0
0
0
OFF OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON OFF
X0 status
X0
M0
X0
M0
[ PLF M0 ]
X0
A
A
Completion of online
change
The trailing edge instruction is not
executed even the execution condition is
OFF OFF
Operation when "Trailing edge instructions are not executed"
is unchecked.
(a)
END
1 scan
END
END
0
0
0
OFF OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON OFF
X0 status
X0
M0
X0
M0
[ PLF M0 ]
X0
A
A
(b)
Completion of online
change
The trailing edge instruction is not
executed even the execution condition is
OFF OFF
The trailing edge instruction is not
executed when the timing of online
change completion
and the timing of ON OFF
(execution condition)meet
Operation when "Trailing edge instructions are not executed"
is checked.
