APPX
Appendix 3 Buffer Memory
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A
Appendix 3
Buffer Memory
List of buffer memory addresses
The following tables list the buffer memory addresses of the I/O module with diagnostic functions. For details on the buffer
memory addresses, refer to the following.
Page 90 Details of buffer memory addresses
The buffer memory areas of the I/O module with diagnostic functions are classified into the following data types.
Among the buffer memory areas, do not write data in the system areas or the areas whose data types are
monitor data. Writing data into these areas can cause a malfunction of the module.
Data type
Description
Setting data
Description
Set this data according to connected devices and the system applications.
Read/Write attribute
Data can be read/written from/to this area.
Setting method
Set this data using the engineering tool or a program.
Setting timing
After the change of a value, the set value is enabled by turning on and off 'Operating condition
setting request' (Y12).
Control data
Description
Use this data to control the I/O module with diagnostic functions.
Read/Write attribute
Data can be read/written from/to this area.
Setting method
Set this data using the engineering tool or a program.
Setting timing
A set value is enabled as soon as the value is changed.
Monitor data
Description
Use this data to monitor the status of the I/O module with diagnostic functions.
Read/Write attribute
Reading data is only allowed. Writing data is not allowed.
Setting method
Setting timing
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