User`s manual
System configuration Overall system
3 – 6
3.2 Overall system
3.2.1 Modules of MELSEC System Q
CPU modules
Type Description
Power
consumption
(mA)
Note
5 V DC 24 V DC
Basic model QCPU
Q00JCPU Combination of
base unit, power
supply module
and CPU
2048 total I/O points
256 direct accessible I/O points
Memory capacity:
8 k steps
200 — 5 slots for I/O
modules
Power supply
specification:
Input:
100-240 V AC
Output:
5 V DC, 3 A
Q00CPU CPU modules;
suitable for
multi-CPU oper-
ation;
also refer to
CPU perform-
ance specifica-
tions chapter 12
2048 total I/O points
1024 direct accessible I/O points
Memory capacity:
8 k steps
250 —
Q01CPU 2048 total I/O points
1024 direct accessible I/O points
Memory capacity:
14 k steps
270 —
High performance model QCPU
Q02CPU CPU modules;
suitable for
multi-CPU oper-
ation;
also refer to
CPU perform-
ance specifica-
tions chapter 12
8192 total I/O points
4096 direct accessible I/O points
Memory capacity:
28 k steps
600 — Slot for
memory card
Q02HCPU 8192 total I/O points
4096 direct accessible I/O points
Memory capacity:
28 k steps
640 — Slot for
memory card
USB interface
Q06HCPU 8192 total I/O points
4096 direct accessible I/O points
Memory capacity:
60 k steps
640 —
Q12HCPU 8192 total I/O points
4096 direct accessible I/O points
Memory capacity:
124 k steps
640 —
Q25H
CPU 8192 total I/O points
4096 direct accessible I/O points
Memory capacity:
252 k steps
640 —
Tab. 3-1: Overview of the CPU modules