What is the difference between FX3GE and FX3U PLCs?

The FX3GE is a newer, more compact model in the MELSEC family with improved cycle time, better memory capacity, and enhanced Ethernet capabilities compared to the older FX3U series.

How many I/O points does the FX3GE-24MR have?

The FX3GE-24MR features 24 total I/O points: 16 digital inputs and 8 relay outputs for basic control applications.

What programming software is needed?

Use GX Works2 or GX Works3 (IEC 61131-3 Ladder programming environment) available from Mitsubishi Electric for development.

Can this PLC communicate over Ethernet?

Yes, by adding optional Mitsubishi Ethernet modules (FX3G-E2N for serial or FX3G-ECAT for EtherCAT). Base unit includes RS-232C only.

What is the operating voltage?

The FX3GE-24MR requires 24VDC supply and is typically used in industrial control cabinets powered by regulated 24VDC sources.

What is the program memory size?

Program memory capacity is 8,192 steps with 4,096 words of data memory, adequate for small to medium automation tasks.

Is this PLC suitable for harsh factory environments?

Yes, it operates in -10 to 60°C temperature range and supports CE/UL compliance. Mount it in an appropriate industrial control enclosure for added protection.

Can I expand the I/O capacity?

Yes, up to 8 expansion modules can be added via the right-side connector to increase digital/analog I/O or add specialized functions.

Mitsubishi

FX3GE-24MR

Mitsubishi FX3GE-24MR MELSEC Compact PLC 24I/O 24VDC Base Unit

Category Entry-Level

MSRP

$579.09

Unit: pcs

PN (normalized): FX3GE24MR

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Datasheet

Specifications

inputs	16
weight	0.5 kg (approx)
outputs	8 relay
voltage	24VDC
protocol	Modbus RTU, Mitsubishi
io_points	24
scan_time	0.73 µs/step
dimensions	220×90×105 mm (approx)
form_factor	Compact base unit
memory_data	4K words
certification	CE, UL/cUL compliant
communication	RS-232C, optional Ethernet
memory_program	8K steps
expansion_modules	Up to 8
programming_language	IEC 61131-3 Ladder
operating_temperature	-10 to 60°C