Using The Memory Address Map - Contec F&eIT Series User Manual

Using the Memory Address Map

When connected to a CPU-CAxx(FIT)GY, the CNT24-2(FIT)GY can be accessed by a
host computer through a network. In addition, the Module can be allocated to the
memory controlled by the Controller Module according to a given Device ID.
Applications running on the host computer control the I/O modules by reading/writing
the memory that is controlled by the Controller Module.
For detailed specifications on the memory controlled by the Controller Module, see the
Controller Module manual
Following is an explanation of the memory areas necessary for the use of the
CNT24-2(FIT)GY: the "module settings area", the "module information area", and the
"basic output data area.
Module Settings Area
This area controls the settings and how the module is started.
The module becomes available when the necessary settings are written into this area
and the module activation option is set in the [module startup register].
Module Information Area
The current module settings are stored in this area.
When the Module is started, the contents of the Module Settings Area are copied to the
Module Information Area. By reading this area, you can verify the current module
settings.
Basic Input Data Area
Basic input data is read in this area.
Basic Output Data Area
Basic output data is written in this area.
CNT24-2(FIT)GY
Using the Memory Address Map
47