Mitsubishi FX3G Series Programming Manual

207
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
7 Basic Instruction
7.12 PLS, PLF
1
Introduction
2
Overview
3
Instruction List
4
Devices in Detail
5
Specified the Device & Constant
6
Before Programming
7
Basic Instruction
8
FNC00-FNC09 Program Flow
9
FNC10-FNC19 Move & Compare
10
FNC20-FNC29 Arith. & Logic Operation
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.
Please program in the following way to turn on M0 only once.
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
M0
X000
M0PLS
M100M0
Timing chart
one operation
cycle
one operation
cycle
ZRST instruction
execution
ZRST instruction
execution
PLS instruction
execution
PLS instruction
execution
X000
M 0
ZRST
Circuit program
M0
X000
M0
M100M0ZRST
RUN STOP RUN
Timing chart
ON during one
operation cycle
ON during one
operation cycle
X000
RUN/STOP
M600
(latched device)
PLS
instruction
Circuit program
X000
M8002
M600PLS
M700M600ZRST

Mitsubishi FX3G Series Specifications

General

Model	FX3G Series
Power Supply	AC 100-240V or DC 24V
Program Capacity	32, 000 steps
Execution Speed	0.21 µs/basic instruction
Communication Options	RS-422, USB, Ethernet
Expansion Modules	Analog, digital, communication
Programming Language	Ladder Logic, Instruction List
Built-in Functions	High-speed counters, pulse output
Analog I/O	Available via expansion modules