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(3) Access ranges of controlled and non-controlled modules
Access ranges of the controlled and non-controlled modules in a multiple CPU system is shown below.
: Accessible ×: Inaccessible
Access target
Controlled
module
Non-controlled module
("All CPUs Can Read All Inputs")
Disabled (not checked) Enabled (checked)
Input (X) × ×
Output (Y)
Read × ×
Write × ×
Buffer memory
Read × ×
Write × ×