This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
other than Mitsubishi products; and to other duties.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has been manufactured under strict quality control. However
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.
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HEAD OFFICE
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310,
JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
2. Installation
Turn off the power to the PLC before installing the memory cassette.
Use M3x16 tapping screws when always using the memory cassette together
with the expansion board/connector conversion adapter.
The following section describes the installation method to the FX3G Series PLC (FX3G-
24M…. in this example).
INSTALLATION
PRECAUTIONS
• Make sure to cut off all phases of the power supply externally before attempting
installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
INSTALLATION
PRECAUTIONS
• Use the product within the generic environment specifications described in PLC
main unit manual (Hardware Edition).
Never use the product in areas with excessive dust, oily smoke, conductive dusts,
corrosive gas (salt air, Cl2, H2S, SO2, or NO2), flammable gas, vibration or impacts,
or expose it high temperature, condensation, or rain and wind.
If the product is used in such conditions, electric shock, fire, malfunctions,
deterioration or damage may occur.
• Use screwdrivers carefully when performing installation work, thus avoiding
accident or product damage.
• When drilling screw holes or wiring, make sure cutting or wire debris does not
enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Do not touch the conductive parts of the product directly.
Doing so may cause device failures or malfunctions.
• Connect the memory cassette securely to their designated connectors.
Loose connections may cause malfunctions.
For details on installation and removal, refer to the following manual.
→ Refer to the FX3G Series User's Manual - Hardware Edition
3. Loader Function (Program Transfer Procedure)
The FX3G-EEPROM-32L loader function ([WR] and [RD] key operation) is explained
in this section.
(The FX3G-EEPROM-32L is abbreviated as “32L”, and the programmable controller
is abbreviated as “PLC”.)
• Program transfers (reading/writing) are possible between the 32L and the PLC’s
internal EEPROM memory.
• The loader function is enabled while the PLC is stopped.
• When using a display module with the memory cassette, the memory cassette’s
loader function cannot be used. Therefore use the display module to transfer the
program.
For details, refer to the following manual.
→ Refer to the FX3G Series User’s Manual - Hardware Edition
3.1 Write to the PLC(32L−>PLC)
Required condition: The PLC must be stopped
1) Attach the 32L to the PLC while the PLC power is off.
2) Turn on the power of the PLC. Press the WR key of the 32L once. The WR LED
lights and the 32L is ready for write.
3) Press the WR key once more. The WR LED flickers and the 32L starts to write.
4)When the program is finished loading the LED is extinguished.
(Turn off the power of the PLC, and remove the 32L.)
3.2 Read from the PLC(PLC−>32L)
Required condition: The PLC must be stopped
1) Turn off the PROTECT switch in the lower right of the 32L.
2) Attach the 32L to the PLC while the PLC power is off.
3) Turn on the power of the PLC. Press the RD key of the 32L once. The RD LED
lights and the 32L is ready for the read operation.
4) Press the RD key once more. The RD LED flickers, and the 32L starts to read.
5)When the read is finished, the RD LED is extinguished.
(Turn off the power of the PLC and remove the 32L. Turn the write protect
switch on.)
Hardware Edition.
• Make sure to turn the PLC power off before attaching or detaching the 32L or
switching the PROTECT switch.
• When the 32L is used for the first time, the ERR LED in the PLC may flicker to
indicate a program error.
Perform "All Clear" or transfer a program using the programing tool.
• Only one memory cassette may be connected to a FX3G main units.