Mitsubishi Electronics FX3S ユーザーズマニュアル
35
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.6 Program Memory and Devices
1
Introdu
ction
2
Ov
ervi
ew
ew
3
Instruction
Li
st
4
D
evices
in Det
ai
l
5
Specifi
ed the
De
vice
&
C
onst
ant
ant
6
Bef
ore
ore
Pr
og
ra
mmi
ng
ng
7
Bas
ic
ic
Instruction
8
FN
C00-FN
C00-FN
C0
9
Program Fl
ow
9
FNC
10-FN
C19
Mov
e & Com
e & Com
pare
10
FNC
20-FNC
29
Arith. & Lo
gi
c
Operati
on
3. In FX
3U
/FX
3UC
PLCs
FX
3U
/FX
3UC
PLCs are equipped with the RAM memory as standard.
By mounting a memory cassette, the memory type can be changed.
1) When using the built-in memory (without attached memory cassette)
1) When using the built-in memory (without attached memory cassette)
2) When using an attached memory cassette (does not use the built-in program memory)
CPU
System ROM
Built-in program memory
(RAM)
Parameter
File register (D)
Comment
Sequence program
Special setting
Memory cassette
(Flash memory)
Not attached
Built-in device memory (RAM)
[Bit device memory]
· Data register (D)
· Timer present value register (T)
· Counter present value register (C)
· Index register (V, Z)
Contact image memory
·
·
Input relay (X)
·
Output relay (Y)
· Auxiliary relay (M) · State relay (S)
Timer contact, time counting coil, and reset coil (T)
Counter contact, counting coil, and reset coil (C)
Timer contact, time counting coil, and reset coil (T)
Counter contact, counting coil, and reset coil (C)
· Extension register (R)
[Data memory]
Symbolic information
*1
CPU
System ROM
Built-in program memory
(RAM)
Not used
Memory cassette
(Flash memory)
Parameter
File register (D)
Special setting
Comment
Sequence program
Extension file register (ER)
The PLC automatically recognizes attachment of a
memory cassette (when the power is turned ON),
and disconnects the built-on program memory.
(Priority is given to the memory cassette.)
memory cassette (when the power is turned ON),
and disconnects the built-on program memory.
(Priority is given to the memory cassette.)
Built-in device memory (RAM)
[Bit device memory]
[Data memory]
T
ransfer and initialization by
instructions
Contact image memory
·
·
Input relay (X)
·
Output relay (Y)
· Auxiliary relay (M) · State relay (S)
Timer contact, time counting coil, and reset coil (T)
Counter contact, counting coil, and reset coil (C)
Timer contact, time counting coil, and reset coil (T)
Counter contact, counting coil, and reset coil (C)
· Data register (D)
· Timer present value register (T)
· Counter present value register (C)
· Index register (V, Z)
· Extension register (R)
Symbolic information
*1. Supported in Ver. 3.00 or later.
*1