Refresh Processing Time - Mitsubishi Electric MELSEC iQ-R Series User Manual

Refresh processing time

A refresh processing time [s] is a constituent of the scan time of the CPU module. For details on the scan time, refer to the
following.
 MELSEC iQ-R CPU Module User's Manual (Application)
The refresh processing time [s], which is taken for refresh, is given by:
• Refresh processing time [s] = Refresh read time (time for transferring refresh data to the CPU module) + Refresh write
time (time for transferring refresh data to the intelligent function module)
The refresh read time and refresh write time vary depending on the settings of "Target".
When "Target" is "Module Label" or "Refresh Data Register (RD)"
The following table shows the refresh read time and refresh write time with an RnCPU module used.
Model
R60TD8-G
R60RD8-G
R60TD8-G (Q compatible mode)
R60RD8-G (Q compatible mode)
When "Target" is "Device"
Calculate the refresh read time and refresh write time according to the number of items and the number of their transfer data
(in units of word) that are set to be refreshed. For the calculation method, refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
Classification
Refresh read time
Refresh write time
Refresh read time
Refresh write time
Refresh read time
Refresh write time
Refresh read time
Refresh write time
When using the refresh settings
26.48s
14.5s
26.48s
14.5s
19.79s
10.44s
19.79s
10.44s
2 PARAMETER SETTINGS
2.4 Refresh Setting
2
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