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APPENDICES
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Appendix 4 Processing Time
Appendix 4.2 Factors that increase scan time
(3) Auto refresh of CC-Link
(a) Auto refresh time of CC-Link
This is the time required for executing refresh between a QCPU and a CC-Link master/local module.
For details, refer to the following.
MELSEC-Q CC-Link System Master/Local Module User's Manual
(b) Calculating formula
In a multiple CPU system, when auto refresh is requested by a CC-Link module controlled by another CPU
module during auto refresh processing, the auto refresh time increases by the time obtained by the following
calculation.
Use the following value for N5.
QCPU
N5
System with a main base unit
only
System including extension
base unit(s)
Q00CPU, Q01CPU
0.54µs 1.30µs
Q02(H)CPU, Q06HCPU, Q12HCPU,
Q25HCPU
Q02PHCPU, Q06PHCPU, Q12PHCPU,
Q25PHCPU
Q00UCPU, Q01UCPU, Q02UCPU,
Q03UD(E)CPU, Q04UD(E)HCPU,
Q06UD(E)HCPU, Q10UD(E)HCPU,
Q13UD(E)HCPU, Q20UD(E)HCPU,
Q26UD(E)HCPU, Q50UDEHCPU,
Q100UDEHCPU
Q03UDVCPU, Q04UDVCPU,
Q06UDVCPU, Q13UDVCPU, Q26UDVCPU
(Extended time) = (Number of send/receive word points) N5 (Number of other CPU modules) (µs)
The number of send/receive word points is the total points of the following transfer data.
Link refresh data:
(RX + RY + SB)
16
+ SW