Mitsubishi FX3G Series Programming Manual

136
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
4 Devices in Detail
4.10 Extension Register [R] and Extension File Register [ER]
1. Relationship between extension file registers and extension registers
Extension file registers and extension registers have the following positional relationship inside the PLC.
a) FX3U/FX3UC PLCs
b) FX3G/FX3GC PLCs
*1. Memory cassette cannot be connected to FX3GC PLCs.
Extension file register (ER)Extension register (R)
GX Developer
LOGR
instruction
Available in built-in RAM
General-purpose device
(sequence program)
R4096
R0
R32767
SAVER instruction
(sector units)
RWER instruction
(point units)
Available with a memory
cassette mounted
ER2048
ER0
ER32767
ER4096
R2048
2048
points
2048
points
2048
points
R30720 ER30720
1 sector
All points are
written at one
time
2048
points
2048
points
2048
points
16
sectors
Nonvolatile
memory
LOADR instruction
(point units)
INITR instruction
(initialization)
(sector units)
General
applied
instruction
Programming tool
2048
points
ER6144
INITER instruction
(initialization)
(sector units)
INITER
Available in built-in RAM
Extension register (R) Extension file register (ER)
General-purpose device
(sequence program)
General
applied
instruction
All points are
written at one
time
Programming tool
Nonvolatile
memory
LOADR instruction
(point units)
RWER instruction
(arbitrary number of points)
ER23999
ER0R0
R23999
GX Developer
Available in attached memory
cassette or built-in EEPROM
*1

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