43
FX
3S
Series Programmable Controllers
User's Manual - Hardware Edition
1
Introduc
tion
2
Features an
d
Par
t N
am
es
3
Produc
t
Introducti
on
4
Specifi
cations
5
Ve
rsi
on and
Peri
pheral
De
vice
s
6
Sy
stem
Confi
gurati
on
7
Instal
lati
on
8
Preparati
on an
d
Pow
er Supply
Wi
ring
9
Input W
iri
ng
10
Hi
gh
-S
peed
Counters
5 Version Information and Peripheral Equipment Connectability
5.2 Programming Tool Applicability
5.2.5
Cautions on write during RUN
Write during RUN (program changes during RUN) is available in the FX
3S
PLC when GX Works2 is used.
However, list programs and SFC programs cannot be written during RUN.
When programming software not supporting the FX
3S
PLC is used, write during RUN is available within the
function range available in both the FX
3S
PLC and the PLC selected as the alternative model.
→
Refer to the manual of the used programming software for the operations
for and cautions on write during RUN.
Cautions on write during RUN
*1.
Circuit blocks cannot be edited to insert a label as shown below when written during RUN.
Item
Caution
Program memories which can be written in
RUN mode
Built-in EEPROM and optional memory cassette (whose write protect switch is set to
OFF)
Number of program steps which can be written
for circuit change in RUN mode
256 steps or less after edition (addition/deletion)
(including NOP immediately after circuit blocks except final circuit)
Circuit blocks which cannot be written in RUN
mode
Circuit blocks
*1
in which labels P and I are added, deleted or changed in edited circuits
Circuit blocks in which 1 ms timers (T63 to T131) are added in edited circuits
Circuit blocks in which the following instructions are included in edited circuits
•
Instruction to output high-speed counters C235 to C255 (OUT instruction)
Added, deleted, or changed
Added, deleted, or changed
Step 0
I001
Pointer for
interrupt
Label I is inserted by editing the circuit block
FNC 04
EI
FNC 06
FEND
FNC 03
IRET
END
