31
Chapter 2
Memory Map
Transmission with the CC-Link will automatically refresh the buffer memories of the SL-VGU1-C and the CC-
Link master. Using the FROM / TO command or automatic refresh setting (QnA, QnS, Q Series CPU), assign
inputs and outputs to internal relays.
PLC
CPU
CC-Link
master
SL-VGU1-C
S-LINK V
unit
Automatic refresh
FROM / TO command
Buffer
memory
Buffer
memory
Automatic updating Automatic updating
2 1
The program
or initial setting
is needed.
1. Buffer Memory of SL-VGU1-C
The SL-VGU1-C is equipped with 2 patterns of buffer memory. They are:
• Buffer memory assignment pattern 1
• Buffer memory assignment pattern 2
For a detailed description of each buffer memory assignment pattern, refer to page 31 ‘Buffer memory assign-
ment pattern 1,’ and page 33 ‘Buffer memory assignment pattern 2.’