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MELSEC-Q
5 UTILITY PACKAGE (GX Configurator-AS)
5.4 Auto refresh setting
[Purpose]
Configure the QJ71AS92's buffer memory for automatic refresh.
[Operating procedure]
"Start I/O No. " "Module type" "Module model name" Auto refresh
Enter the start I/O No. in hexadecimal.
[Setting screen]
[Explanation of items]
(1) Items
Module side Buffer size
: Displays the buffer memory size of the setting
item.
Module side Transfer word count : Displays the number of words to be
transferred.
Module side Buffer offset
: The buffer memory addresses are offset on a
one word basis.
Transfer direction
: " " indicates that data are written from the
CPU module to the buffer memory.
" " indicates that data are loaded from the
buffer memory to the CPU module.
PLC side Device
: Enter a CPU module side device that is to be
automatically refreshed.
Applicable devices are X, Y, M, L, B, T, C,
ST, D, W, R, and ZR.
When using bit devices X, Y, M, L or B, set a
number that can be divided by 16 points
(examples: X10, Y120, M16, etc.)
Also, buffer memory data are stored in a 16-
point area, starting from the specified device
number. For example, if X10 is entered, data
are stored in X10 to X1F.
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