Mitsubishi MELSEC-Q Series User Manual page 215

5
PROCESSING TIME OF QCPU IN MULTIPLE CPU
SYSTEM
(c) When auto refresh of another CPU occurs during auto refresh processing of
Q00CPU
Q01CPU
Q02CPU
Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU
Q02PHCPU, Q06PHCPU,
Q12PHCPU, Q25PHCPU
Q02UCPU, Q03UDCPU,
Q04UDHCPU, Q06UDHCPU,
Q13UDHCPU, Q26UDHCPU,
Q03UDECPU, Q04UDEHCPU,
Q06UDEHCPU, Q13UDEHCPU,
Q26UDEHCPU
a CPU
If auto refresh of another CPU occurs during auto refresh processing of a CPU,
the auto refresh time increases by the time obtained from each the following
calculations.
1) For Basic model QCPU
(Extension time) = 4 (No. of reception word points)
Use the values in Table5.7 for N6
Table5.7 Time prolonged when processing of other CPU is duplicated
Basic model QCPU
2) For High Performance model QCPU/Process CPU
(Extension time) = (No. of transmission/reception word points)
(No. of other CPUs) (µs)
Use the values in Table5.8 for N5
Table5.8 Time prolonged when processing of other CPU is duplicated
High Performance model
QCPU/Process CPU
Univwesal model QCPU
System with main base unit
only
0.54 s
System with main base unit
only
0.54 s
5.2 Factors for prolonged Scan Time
N6 (No. of other CPUs) (µs)
N6
System including extension
base unit(s)
1.30 s
N5
N5
System including
extension base unit(s)
1.30 s
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