High-Speed I/O Refresh Function And High-Speed Buffer Transfer Function - Mitsubishi Electric Q01UCPU User Manual

3.21.2
High-speed I/O refresh function and high-speed buffer transfer
function
The high-speed I/O refresh function refreshes I/O signal data between I/O modules or intelligent function modules and
the CPU module at the specified interrupt intervals.
The high-speed buffer transfer function refreshes data between the buffer memory in intelligent function modules and
the devices in the CPU module at the specified interrupt intervals.
(1) Setting method
(a) High-speed I/O refresh function
Open the High Speed Interrupt Settings window and set the refresh ranges for X/Y.
Project window
Settings", "High Speed Interrupt Settings" button
Item
Select an assignment method (Points/Start or
Assignment Method
Start/End).
Points(DEC) The number of bits transferred (16 to 4096)
Start device number (X0 to 0FF0 or Y0 to
Start(HEX)
0FF0)
End device number (X000F to 0FFF or
End(HEX)
Y000F to 0FFF)
*1 This applies to both the start device number and the number of bits transferred.
224
[Parameter] [PLC Parameter]
Description
"PLC System" tab
Set the refresh ranges of X/Y.
Restrictions
-
• I/O modules and intelligent function
modules only
• Numbers in the multiples of 16 only
"System Interrupt
Number of settings
-
Up to six settings for
X input and Y
*1
output, respectively