Mitsubishi Electric MELIPC MI5000 Series User Manual page 82

Link refresh
This function automatically transfers data between devices and link devices of the master station.
Link refresh is performed in sync with link scan. ( Page 83 Link scan operation)
Setting method
A refresh target device is assigned by "Refresh Settings" under "CC-Link IEF Basic Setting". ( Page 162 BASIC
PARAMETERS)
Precautions
■When a file register is specified for a refresh target device
A file register is a latching device, so the value is retained when the power supply of this product is turned OFF to ON or
during the reset. Therefore, if product file register data being latched is cleared to '0' by turning the power supply OFF to ON
or resetting, depending on the timing of link scan and link refresh, the latched data is output without being cleared to '0'.
To prevent the output of file register data of this product being latched, perform the following operation.
Item
File register (ZR)
Operation during refresh
■During output from a master station (this product)
The programmable controller device (user device, file register) is refreshed to the link device (RY, RWw) at the start of link
scan of each group number.
■At input from slave station
The link device (RY, RWr) is refreshed to the programmable controller device (user device, file register) at the end of link scan
of each group number.
7 CC-Link IE Field Network Basic FUNCTION
80
7.1 Cyclic Transmission
Description
• Change the refresh target device to a user device.
• Clear the file register values to "0" before turning the power supply of this product OFF to ON or resetting this
product.