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APPENDICES
A
Appendix 4 Processing Time
Appendix 4.2 Factors that increase scan time
• For the High Performance model QCPU and Process CPU
The number of receive word points is the sum of the number of word points sent by other CPU modules.
Ex.
When the number of CPU modules is 4 and the host CPU is CPU No.1
The number of receive word points will be the sum of the number of word points sent by CPU No.2 to
No.4.
Use the following values for N1 to N4.
High Performance model QCPU,
Process CPU
N1 N2 N3 N4
Q02CPU 82µs 0.52µs 106µs 0.17µs
Q02HCPU, Q06HCPU, Q12HCPU,
Q25HCPU
27µs 0.44µs 27µs 0.08µs
Q02PHCPU, Q06PHCPU, Q12PHCPU,
Q25PHCPU
(Auto refresh time) = (N1 + (Number of receive word points) N2) (Number of other CPU modules)
+ (N3 + (Number of send word points) N4) (µs)