Mitsubishi FX3UC Series, Руководство пользователя

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417
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
A Version Information and Peripheral Equipment Connect ability
A-2 Programming Tool Applicability
11
Mem
ory
Cass
ette/B
attery
12
Te
st
R
un,
M
aint
enanc
e,
Troubleshoot
ing
A
Ve
rs
ion
In
fo
rm
atio
n
B
Per
for
m
ance
Specif
icati
ons
C
S
pec
ia
l D
evices
(M80
00 -,
D
800
0 -)
D
In
str
uct
ion List
E
C
har
ac
te
r-code
F
D
isconti
nued
m
odels
Circuit blocks which require attention on
operation after write during RUN
Avoid write during RUN to a circuit block including the following
instructions during execution of communication. If write during RUN is
executed to such a circuit block, the PLC may stop communication after
that.
If the PLC stops communication, set the PLC to the STOP mode once,
and then set it to the RUN mode again.
• IVCK (FNC270), IVDR (FNC271), IVRD (FNC272), IVWR (FNC273)
and/or IVBWR (FNC274) instruction
• Instructions for rising edge pulse
When write during RUN is completed for a circuit including an
instruction for rising edge pulse, the instruction for rising edge pulse is
executed if a target device of the instruction for rising edge pulse or the
operation condition device is ON.
Target instructions for rising edge pulse: LDP, ANDP, ORP, and pulse
operation type applied instructions (such as MOVP)
*1. The PLS instruction is not executed.
• MEP instruction (Conversion of operation result to leading edge pulse
instruction)
When completing Write during RUN to a circuit including the MEP
instruction, the execution result of the MEP instruction turns ON
(conducting state) if the operation result up to the MEP instruction is
ON.
• MEF instruction (Conversion of operation result to trailing edge pulse
instruction)
When completing Write during RUN to a circuit including the MEF
instruction, the execution result of the MEF instruction turns OFF
(nonconducting state) regardless of the operation result (ON or OFF)
up to the MEF instruction.
When the operation result up to the MEF instruction is set to ON once
and then set to OFF, the execution result of the MEF instruction turns
ON (conducting state).
Others
When writing during RUN with GX Developer Ver. 8.13P or later, the
program is as follows.
When the number of program steps is reduced by deletion of contacts,
coils and applied instructions, the program capacity becomes smaller by
as many as the reduced number of steps.
Item Caution
Contact ON/OFF status
(while write during RUN is
executed)
Instruction for
rising edge
pulse
Instruction for
falling edge
pulse
OFF Not executed Not executed
ON
Executed
*1 Not executed
Operation result up to
MEP/MEF instruction
MEP instruction MEF instruction
OFF
OFF
(nonconducting)
OFF
(nonconducting)
ON
ON
(conducting)
OFF
(nonconducting)