Contec PC-HELPER Series Reference Manual page 62

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Function
AI-1204Z-PE Reference Manual
Data acquisition in FIFO format
When FIFO memory is used, the oldest data is always read first.
The following sketch shows an image of data acquisition in FIFO format.
When data is acquired from the memory, the free memory space increases by that data size.
When data is acquired next, the oldest one of the existing data items is taken from the memory in
the same way.
The FIFO memory deletes data once that data is acquired.
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