5 Memory map
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5.3
Memory area
Classific
ation
Items
Description
Memory Management
Manage read and write data in order of module combination for providing
information to field network
Fieldbus
Memory
Read Area
Data area including the input data and diagnostic information, transmits
the information collected from the remote IO unit to the master of field
network
Write Area
Data area including output data information, outputs information from the
master of field network via the remote IO unit
5.4
Gather diagnostic information of modules
Save and Manage the information collected from each module in a contiguous memory. The
read area includes diagnostic information as well as its own channel information. If the output
module includes the diagnostic information, it provides the information by utilizing the read and
write area at the same time.
The coupler transmits the diagnostic information of itself and modules to the master of field
network according to the settings, which is cyclically updated. This information allows you to
remotely check the status of each coupler.