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(3) High-speed processing
High speed processing has been achieved.
The MELSEC Q series base unit high-speed system bus has achieved faster access to an intelligent function
module and link refresh with a network module.
(a) Basic model QCPU
MELSECNET/H link refreshing: 2.2ms/2K words
*1
*1 The Q01CPU is used without using SB and SW, and the MELSECNET/H network module is mounted on the main base
unit.
(b) High Performance model QCPU, Process CPU, Redundant CPU or
Universal model QCPU
Access to the intelligent function module: 20µs/word (approximately 7 times
*2
)
MELSECNET/H link refreshing: 4.6ms/8K words (approximately 4.3 times
*2
)
*2 These are the values resulted from the following comparison:
• Comparing Q02HCPU with Q2ASHCPU-S1
• Comparing Q25PHCPU with Q4ARCPU
• Comparing Q25PRHCPU with Q4ARCPU
CPU module type LD instruction processing speed
Basic model QCPU
Q00JCPU 200ns
Q00CPU 160ns
Q01CPU 100ns
High Performance model QCPU
Q02CPU 79ns
Q02HCPU, Q06HCPU, Q12HCPU,
Q25HCPU
34ns
Process CPU
Q02PHCPU, Q06PHCPU, Q12PHCPU,
Q25PHCPU
Redundant CPU Q12PRHCPU, Q25PRHCPU
Universal model QCPU
Q00UJCPU 120ns
Q00UCPU 80ns
Q01UCPU 60ns
Q02UCPU 40ns
Q03UD(E)CPU 20ns
Q04UD(E)HCPU, Q06UD(E)HCPU,
Q10UD(E)HCPU, Q13UD(E)HCPU,
Q20UD(E)HCPU, Q26UD(E)HCPU,
Q50UDEHCPU, Q100UDEHCPU
9.5ns
Q03UDVCPU, Q04UDVCPU,
Q06UDVCPU, Q13UDVCPU,
Q26UDVCPU
1.9ns
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