Link Refresh - Mitsubishi Electric MELSEC iQ-R Series User Manual

■Data transfer between RX and RY and a device in a CPU module
To perform auto transfer using the module parameters in an engineering tool, setting a refresh device in "Link Refresh
Settings" under "Basic Settings" transfer data between RX and RY in a master/local module and a device in a CPU module.
( Page 62 Link Refresh Settings)
To perform transfer using a program, use a module access device (Un\G) and FROM/TO instructions to transfer data
between the buffer memory areas in a master/local module and a device in a CPU module.
Address
Hexadecimal
E0H to 15FH
160H to 1DFH
■Storage locations of RX and RY
Areas are assigned by 32 points in the order of station number to the remote input (RX) and remote output (RY). (Page 146
Slave station offset, size information)

Link refresh

This function automatically transfers data between the link device of the master/local module and the device of the CPU
module or between the link devices (RX, RY, RWr, RWw, SB, and SW) of the master/local module and the devices of the CPU
module or between the link devices (SB and SW) of the master/local module and the module label of the CPU module.
CPU module
Device
Link refresh
Concept of the link refresh range (number of points)
The link refresh is performed to the area set in "Link Refresh Settings" under "Basic Settings".
CPU module
Device
(1)
Link refresh
Decimal
224 to 351
352 to 479
Master/local module
Link device
RX
RY
RWr
RWw
Master/
local module
Link device
(1)
Item
Remote input (RX)
Remote output (RY)
(1) Range set in "Link Refresh Settings" under "Basic
Settings"
Reference
Page 142 Remote input (RX) and
remote output (RY)
1 FUNCTIONS
1.1 Cyclic Transmission
1
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