Owner's manual

KEYENCE CORPORATION. Vision System Division
‐ 11 ‐ www.keyence.com
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 the PLC.
Howev
er, if the PLC repeats measurement without controlling Result Ack Address (bit), the output buffer of CV
‐X
over
flows, 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. If the PLC overwrites the 1 of Result Ready Address (bit) written by CV
‐X wit
h 0, the PLC can
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 the PLC cannot
find the result update timing of CV
‐X.
It can be used when you wish to obtain the latest result only.