Mitsubishi Electronics FX3GC ユーザーズマニュアル
34
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
2. In FX
3G
/FX
3GC
PLCs
FX
3G
/FX
3GC
PLCs are equipped with the EEPROM memory as standard.
1) When using the built-in memory (without attached memory cassette)
2) When using an attached memory cassette
*1
(without using the built-in program memory)
CPU
System ROM
Built-in program memory
(EEPROM)
Parameter
File register (D)
Special setting
Comment
Sequence program
(EEPROM)
Memory cassette
Built-in device memory (RAM, EEPROM)
[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)
Counter contact, counting coil, and reset coil (C)
· Extension register (R)
[Data memory]
Transfer and initialization by
instructions
Extension file register (ER)
Not attached
CPU
System ROM
Built-in program memory
(EEPROM)
Not used
(EEPROM)
Parameter
File register (D)
Special setting
Comment
Sequence program
Extension file register (ER)
Built-in device memory (RAM, EEPROM)
[Bit device memory]
[Data memory]
Transfer 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)
· Index register (V, Z)
· Extension register (R)
Memory cassette
The PLC automatically recognizes attachment of a
memory cassette (when the power is turned ON),
and disconnects the built-on program memory.
(The priority is given to the memory cassette.)
memory cassette (when the power is turned ON),
and disconnects the built-on program memory.
(The priority is given to the memory cassette.)
*1. A memory cassette can be connected only to FX
3G
PLC.