Mitsubishi Electric FX3G SERIES Programming Manual page 214
Programmable controllers
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Also See for FX3G SERIES:
- User manual (532 pages) ,
- Hardware manual (8 pages) ,
- Quick start manual (2 pages)
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FX
/FX
/FX
Series Programmable Controllers
3G
3U
3UC
Programming Manual - Basic & Applied Instruction Edition
3. Caution for simultaneous instances of the ZRST instruction and the PLS instruction
The ZRST instruction resets the last stage for the PLS instruction and PLF instruction of the applicable device. In
addition, the reset state of T and C is also reset.
Circuit program
M0
ZRST
X000
Timing chart
X000
M 0
ZRST instruction
execution
PLS instruction
execution
Please program in the following way to turn on M0 only once.
Circuit program
M0
ZRST
X000
When the PLC mode is switched in the way "RUN → STOP → RUN (or power supply ON (RUN) → power supply OFF
→ power supply ON (RUN))" while a drive input remains ON, PLS M600 does not operate. However, it is possible to
operate PLS M600 (latched device) by resetting once using the ZRST instruction.
Circuit program
M8002
ZRST
X000
212
M0
M100
PLS
M0
one operation
one operation
cycle
cycle
PLS instruction
execution
ZRST instruction
execution
M0
M100
M0
M600
M700
PLS
M600
PLS
instruction
Timing chart
X000
RUN
RUN/STOP
M600
(latched device)
7 Basic Instruction
7.12 PLS, PLF
STOP
RUN
ON during one
ON during one
operation cycle
operation cycle
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