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3 CAM FUNCTION
3.2 Create Cam Data
3.2 Create Cam Data
Memory configuration of cam data
Cam data is arranged in the following 2 areas.
Previously written cam data can be used even after turning the power supply OFF by writing data in the cam storage area.
There is an upper limit to the number of writes to the cam storage area (flash ROM). If the number of writes to
the flash ROM exceeds the upper limit, writing to the flash ROM may be disabled and "Flash ROM write error"
(error code: 1A31H) will occur.
It is recommended that data which is not necessary to be held at the power supply OFF is not written in the
cam storage area with the cam data operation function and the cam auto-generation function.
It is possible to write directly to the cam open area via buffer memory when registering cam data that exceeds the memory
capacity in the cam storage area, etc. (Page 85 Cam data operation function) However, writing must be executed to the
cam open area every time due to clearing the data at the power supply OFF.
Memory
configuration
Storage item Details Remark
Cam storage area Cam data Data is written by the following operations.
• Write with the engineering tool
• When executing "write (Cam storage area)" with the cam data
operation function
• Data is preserved even when
turning the power supply OFF.
Cam auto-generation data Data is written when the cam auto-generation request is executed.
(Cam auto-generation function)
Cam open area Cam data Cam data is transmitted from the cam storage area by the
following operations.
• Power supply turn ON
• Write to the cam storage area
• PLC READY [Y0] OFF to ON
• When specifying the cam open area with the cam data operation
function
• When executing the cam auto-generation function
• Data is lost when turning the
power supply OFF.
• The cam data that is used in
cam control is stored.
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