Mitsubishi Q Series CPU Module Q04UDEHCPU

Series#: Mitsubishi

Product Details

MITSUBISHI Q04UDEHCPU & Q04UDHCPU – High-performance multi-CPU programmable logic controllers from the renowned MELSEC-Q Series.
Ultra-fast processing with a 9.5 ns per basic instruction and 0.5…2000 ms constant scan range.
Massive program capacity up to 40K steps, ideal for complex, high-speed automation tasks.
Rich I/O and device support: 8,192 I/O points, 12,288 counters, and 131,072 data register points.
Built-in extended SRAM cassette port for flexible memory expansion and data logging.
Stored program cyclic operation with refresh I/O control ensures deterministic and reliable performance.
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Specification

The Mitsubishi Q04UDEHCPU and Q04UDHCPU are flagship CPU modules from the MELSEC-Q Series, engineered to deliver exceptional control and processing power for demanding industrial automation environments. As part of the Q Series family, these units combine a stored program cyclic operation with a refresh I/O control mode, ensuring deterministic and precise execution of complex logic. With a lightning-fast 9.5 ns basic instruction speed and a constant scan time adjustable from 0.5 to 2000 ms, they are ideal for high-speed applications requiring real-time response. The Q04UDEHCPU and Q04UDHCPU offer a program capacity of 40K steps and support up to 8,192 I/O points, alongside extensive device points including 12,288 counters, 131,072 data registers, and 524,288 link special register points. Their built-in extended SRAM cassette port enables easy memory upgrades, while the multi-CPU configuration capability allows seamless integration with other Q Series modules for scalable and flexible system design.

Item	Q04UDEHCPU / Q04UDHCPU
Control method	Stored program cyclic operation
I/O control mode	Refresh
Extended SRAM cassette port	9.5 ns
Constant scan (setting available in units of 0.5 ms)	0.5…2000 ms
Program capacity	40K steps
Number of I/O device points [X/Y]	8192 points
Number of I/O points [X/Y]	8192 points
Internal relay [M]	8192 points
Latch relay [L]	8192 points
Link relay [B]	2048 points
Timer [T]	0 point
Retentive timer [ST]	1024 points
Counter [C]	12288 points
Data register [D]	131072 points
Extended data register [D]	8192 points
Link register [W]	0 point
Extended link register [W]	2048 points
Annunciator [F]	2048 points
Edge relay [V]	2048 points
Link special relay [SB]	2048 points
Link special register [SW]	524288 points
File register [R, ZR]	8192 points
Step relay [S]	Max. 20 points
Index register / standard device register [Z]	Max. 10 points
Index register [Z] (used in double words)	32-bit ZR indexing
Pointer [P]	256 points
Interrupt pointer [I]	2048 points
Special relay [SM]	2048 points
Special register [SD]	16 points
Function input [FX]	16 points
Function output [FY]	5 points