Refresh Processing Time; When The Refresh Target Is The Module Label Or Refresh Data Register (Rd); When The Refresh Target Is The Specified Device - Mitsubishi Electric MELSEC iQ-R Series User Manual

2.5

Refresh Processing Time

The refresh processing time [s] composed the scan time of the CPU module. For the scan time, refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
The refresh processing time [s] spent on the refresh setting is as follows.
• Refresh processing time [s] = Refresh read (refresh by transferring data to CPU) time + Refresh write (refresh by
transferring data to the intelligent function module) time
The refresh read time and refresh write time vary depending on the setting of the refresh target.
When the refresh target is the module label or refresh data
register (RD)
The following table lists the refresh read time and refresh write time when the CPU module is used.
Classification
Refresh read time
Refresh write time

When the refresh target is the specified device

The refresh read time and refresh write time are calculated based on the number of items in which the refresh setting is set
and the number of transfers (word). For the calculation method, refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
2 PARAMETER SETTINGS
44
2.5 Refresh Processing Time
Refresh processing time
63.37s
13.46s