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CHAPTER10 CPU MODULE PROCESSING TIME
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10.1 Scan Time
10.1.3 Factors that increase the scan time
(6) Online change
When data is written to the running CPU module, the processing time described below is required.
(a) Online change (ladder mode)
When a program in the running CPU module is changed in ladder mode, the processing time shown
in Table10.23 is required.
*1
*1: The time in the table is for the case where the service processing count is set to one.
(b) Online change (files)
When a file is written to the running CPU module, the processing time shown in Table10.24 is
required.
*1
*1: The time in the table is for the case where the service processing count is set to one.
Table10.23 Proceccing time (online change (ladder mode))
CPU module
Processing time
The reserved area for online change
is not changed.
The reserved area for online change
is re-set.
Q00UJCPU, Q00UCPU, Q01UCPU Up to 2.1ms Up to 2.1ms
Q02UCPU Up to 1.3ms Up to 1.3ms
Q03UDCPU, Q03UDECPU Up to 1.0ms Up to 1.0ms
Q04UDHCPU, Q06UDHCPU, Q10UDHCPU,
Q13UDHCPU, Q20UDHCPU, Q26UDHCPU,
Q04UDEHCPU, Q06UDEHCPU, Q10UDEHCPU,
Q13UDEHCPU, Q20UDEHCPU, Q26UDEHCPU
Up to 0.7ms Up to 0.7ms
Table10.24 Processing time (online change (files))
CPU module
Processing time
Scan time = 2ms Scan time = 20ms
Q00UJCPU Up to 4.00ms Up to 6.20ms
Q00UCPU Up to 3.50ms Up to 5.80ms
Q01UCPU Up to 3.50ms Up to 5.60ms
Q02UCPU Up to 4.80ms Up to 4.80ms
Q03UDCPU, Q03UDECPU Up to 3.75ms Up to 3.75ms
Q04UDHCPU, Q06UDHCPU, Q10UDHCPU,
Q13UDHCPU, Q20UDHCPU, Q26UDHCPU,
Q04UDEHCPU, Q06UDEHCPU, Q10UDEHCPU,
Q13UDEHCPU, Q20UDEHCPU, Q26UDEHCPU
Up to 3.70ms Up to 3.70ms