KEYENCE CV-X Series User Manual
Page 13
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3
Representative data output procedure
Operations of data output procedure depending on "Result Output Settings" configured in step 1
1. When both "Acknowledge result output completion" and "Enable Handshake" are checked
Follows the above procedure, and guarantees that all result data output from CV‐X is sent to PLC.
However, if the PLC repeats measurement without controlling Result Ack Address (bit), the output buffer of CV‐X overflows,
and trigger input becomes impossible.
2. When "Acknowledge result output completion" is checked and "Enable Handshake" is unchecked (default)
CV‐X does not check the value of Result Ack Address (bit) in and of the above procedure.
This speeds up the output. PLC can overwrite 1 of Result Ready Address (bit) written by CV‐X with 0 to find the result update
timing of CV‐X.
3. When "Acknowledge result output completion" is unchecked (In this case, "Enable Handshake" is also
unchecked)
CV‐X neither checks the value of Result Ack Address (bit) in and of the above procedure nor updates the value of Result
Ready Address (bit) in and of the above procedure.
This speeds up the output more, but PLC cannot find the result update timing of CV‐X.
This can be used when you wish to obtain the latest result only.