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(d) Auto refresh with an intelligent function module
This is the time required for refreshing data between the buffer memory of an intelligent function module and
devices in the CPU module.
Use intelligent function module utility package (GX Configurator) for auto refresh settings.
Calculation method
Use the following expression to calculate the auto refresh time with an intelligent function module.
(Refresh time) = KN1 + KN2
For KN1 and KN2, use the values given in Table10.8 and Table10.9.
Table10.8 When an intelligent function module is mounted on the main base unit
Q00UJCPU, Q00UCPU, Q01UCPU
Q02UCPU
Q03UDCPU, Q03UDECPU
Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, Q20UDHCPU,
Q26UDHCPU, Q04UDEHCPU, Q06UDEHCPU, Q10UDEHCPU, Q13UDEHCPU,
Q20UDEHCPU, Q26UDEHCPU
Table10.9 When an intelligent function module is mounted on the extension base unit
Q00UJCPU
Q00UCPU, Q01UCPU
Q02UCPU
Q03UDCPU, Q03UDECPU
Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, Q20UDHCPU,
Q26UDHCPU, Q04UDEHCPU, Q06UDEHCPU, Q10UDEHCPU, Q13UDEHCPU,
Q20UDEHCPU, Q26UDEHCPU
When the number of auto refresh points for the analog-digital converter module (Q64AD)
Example
is 4 points (when the module is mounted on the Q26UDHCPU main base unit)
(number of refresh points)
CPU module
CPU module
0.029 (ms) = 0.005 + 0.006
CHAPTER10 CPU MODULE PROCESSING TIME
4
KN1
KN2
96.3
s
6.7
s
23
s
6
s
6
s
5
s
4
s
5
s
KN1
KN2
79.7
s
8.9
s
79.7
s
8.1
s
45
s
7.0
s
7
s
6.0
s
5
s
6
s
10 - 7
1
10
3
4
5
6
7
8
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