Refresh Mode - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Refresh mode

The CPU module performs I/O processing collectively at a specified timing.
The timing of the input refresh and output refresh follows the specified refresh timing setting.
Device memory
0
X10
On/off
data
Outline of the processing
The following describes the details of the refresh mode.
CPU (operation
processing area)
(3)
Input (X) device memory
X0
*3
(4)
Y22
Y20
(5)
*1 The remote input refresh area indicates the area to be used when refresh is set to the input (X) in CC-Link IE Controller Network, CC-
Link IE Field Network, CC-Link IE Field Network Basic, MELSECNET/H, or CC-Link.
*2 Data in the engineering tool input area can be turned on or off by the following:
 Test operation of an engineering tool
 Writing data from the network module
 Writing data from an external device using SLMP
*3 Data in the output (Y) device memory can be turned on or off by the following:
 Test operation of an engineering tool
 Writing data from the network module
 Writing data from an external device using SLMP
Item
Input refresh
Output refresh
1 RUNNING A PROGRAM
48
1.3 Data Communication and I/O Processing
Input of on/off data by input
refresh
Output of on/off data by output
refresh
CPU module
CPU module
Output (Y) device memory
Description
At a specified timing (at END instruction execution or before specified program execution), input data are collectively
read out from the input modules (1), the OR processing with the engineering tool input area and remote input refresh
area is executed, and then the data are stored in the input (X) device memory.
At a specified timing (at END instruction execution or before specified program execution), data in the output (Y)
device memory (2) are collectively output to the output module.
On/off data
Input module or
output module
Remote input
*1
refresh area
Remote input
area for CC-Link
IE Field Network
Basic
Engineering tool input
*2
area
Input module access area
Remote output area for
CC-Link IE Field Network
Basic
Network module
Input refresh
Input module
(1)
Output refresh
Output module
(2)
Network module