Mitsubishi A4UCPU — The A4UCPU module from Mitsubishi serves as a versatile CPU module within the A Series

Part number	A4UCPU
Brand	Mitsubishi
Category	PLC Processor
Description	The A4UCPU module from Mitsubishi serves as a versatile CPU module within the A Series
Manufacturer	Mitsubishi
Product Line	A Series
Part Number	A4UCPU
Weight	1.56 lbs (0.71 kg)
Product Description	CPU Module
Programming Language	Language dedicated for sequence control (Relay symbol, logic symbolic language)
I/O Points	4096 points
Memory Type	Battery-backed RAM for program storage
Program Capacity	30K steps to 3 x 30K steps (expandable)
LED Indicators	Status LEDs for power, run, error, and communication states
Processing Speed (Sequence Instructions)	0.15 µs/step
Data Link	MELSECNET/10, MELSECNET(II)
Storage Temperature Range	-25°C to 75°C
Operating Temperature Range	0°C to 55°C
Communication Ports	RS-232C and RS-422/485 for serial communication
Control System	Sequence program method
I/O Control Mode	Refresh mode

The A4UCPU module from Mitsubishi serves as a versatile CPU module within the A Series. It utilizes dedicated programming languages tailored for sequence control, accommodating a total of 4096 I/O points. With expandable program capacities ranging from 30K steps to a maximum of 90K steps, this unit supports complex operational requirements.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.