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Compact PLC

It is now over 30 years since Mitsubishi Electric launched the first compact PLC on the European market. Since then Mitsubishi has become the world market leader in this sector, with over 9 million of its compact controller installations to its credit.

With their compact dimensions and low cost compact controllers have opened up new perspectives in industrial automation. Many applications for which automation was once not even an option can now benefit from the many advantages of these controllers. The FX3U series that is now being launched worldwide is the third generation Mitsubishi Electric's extremely successful family of compact PLCs. The new flagship line once again sets new standards - and not only in the compact controllers class. The FX3U takes compact controllers into another dimension, delivering performance that was formerly the exclusive domain of larger control systems in a compact package.

The FX family now includes four independent but fully mutually-compatible product lines :

Other Model No.
MELSEC FX3UC	MELSEC FX3U	MELSEC FX3G	MELSEC FX1N	MELSEC FX1S

What can you expect from the MELSEC FX series?

Worldwide compatibility
thanks to their wide power supply range the FX controllers can be used all over the world
Internationally approved
MELSEC FX controllers conform to all major international industrial standards and maritime classifications
Flexible solutions
the base unit can be combined with optional expansion and special function modules to configure a system that is precisely geared to the needs of your application
Simple programming
complex functions can be combined and executed with a single instruction
Speed
the entire FX family has always set the standards for execution speed (FX3U: 0.065µs per logical instruction)
Compatibility
The four lines in the FX family are different and independent products, but they are still fully compatible with one another

Product range

Type	FX1S	FX1N	FX3G	FX3U	FX3UC
Power supply	100-240 VAC/ 24 VDC	100-240 VAC/ 12-24 VDC	100-240 VAC	100-240 VAC/ 24 VDC	24 VDC
No. of inputs	6-16	8-36	8-36	8-64	8-48
No. of outputs	4-14	6-24	8-24	8-64	8-48
Digital outputs	Relay, transistor				Transistor
Program cycle period per logical instruction	0.55-0.7 -µs	0.55-1 -µs	0.21-0.42 -µs	0.065 -µs	0.065 -µs
User memory	2k steps EEPROM (internal)	8k steps EEPROM (internal), EEPROM/EPROM cassettes (optional)	32k steps EEPROM (internal), EEPROM cassettes (optional)	64k steps (standard), FLROM cassettes (optional)	64k steps (standard), EEPROM cassettes (optional)
Dimensions in mm (WxHxD)	60-100x90x49	90-175x90x75	90-175x90x86	130-350x90x86	34-86x90x74