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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.6 Program Memory and Devices
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) Types of bit device memory
a) FX
3S PLC
*1. Some devices are cleared when the PLC status switches from STOP to RUN.
→ For special data registers, refer to Chapter 37.
Item Power OFF
Power
OFF→ON
STOP→RUN RUN→STOP
Contact image
memory
(X, Y, M, S)
Input relay (X) Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
Output relay (Y) Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
General type auxiliary relay (M) Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
Latched (EEPROM backed) type
auxiliary relay (M)
Does not change.
Special type auxiliary relay (M) Cleared.
Set to initial
values.
*1
Does not change.
*1
General type state relay (S) Cleared. Does not change.
Latched (EEPROM backed) type
state relay (S)
Does not change.
Timer contact
Time counting coil
Reset coil (T)
For 100 ms Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
For 10 ms Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
For 1 ms Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
Retentive type for 100 ms Does not change.
Retentive type for 1 ms Does not change.
Counter contact
Counting coil
Reset coil (C)
General type Cleared.
Does not
change.
Cleared.
Does not change while M8033 is
ON.
Latched (EEPROM backed) type Does not change.
High-speed type Does not change.