Mitsubishi FX3G Series User Manual

21 Memory Cassette
343
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
21
Memory Cassette
22
Battery
A
Special Devices (M8000-,D8000-)
B
Instruction List
21.7 Memory Cassette <-> PLC (EEPROM Memory) Transfers by Loader Function
21.7 Memory Cassette <-> PLC (EEPROM Memory) Transfers by Loader
Function
The FX3G-EEPROM-32L loader function ([WR] and [RD] key operation) is explained in this section.
• Program transfers (reading/writing) are possible between the memory cassette and the PLC's internal
EEPROM memory.
• The loader function is enabled while the PLC is stopped.
• When the display module is connected, data can be transferred from the memory cassette by performing
the data transfer procedure in the display module.
(It is not possible to transfer data from the memory cassette by performing the data transfer procedure in
the memory cassette.)
→ For the data transfer method in the display module, refer to Chapter 20.
21.7.1 Writing (WR: 32L -> PLC)
A memory cassette program is written to the PLC's internal EEPROM memory.
Required condition: The PLC must be stopped.
1 Install the memory cassette on the main unit.
(Setting the PROTECT switch to ON (on memory cassette's rear face) prevents accidental
overwriting of memory cassette program.)
→ Refer to Section 21.3 for the installation procedure.
• Verify that the PLC power is OFF, then install the memory cassette on the PLC.
• Turn the PLC power ON.
• Raise the memory cassette's eject lever.
2 Press the [WR] key 1 time.
The [WR] LED lights, and a preparation status is established.
• To cancel, press the [RD] key.
3 Press the [WR] key again.
Writing is executed, and the [WR] LED blinks.
• It takes several seconds to write data to the built-in EEPROM. The WR LED flickers while data is written.
4 Remove the memory cassette from the main unit.
Writing is completed when the [WR] LED goes off.
After turning the PLC power OFF, remove the memory cassette from the PLC.
→ Refer to Section 21.4 for the removal procedure.
WR LED
WR key

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