Owner manual
KEYENCE CORPORATION. Vision System Division
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✎Command Execution Procedure Example: Rewrite Registered String (CW)
Here is an example of a representative command execution procedure. This section explains an example of executing the CW
(Rewrite Registered String) command, which specifies a string for the command parameter, with Command Execute Event set
to "Polling". The screens with blue frames show when the "Watch" function of MPE720 is used for confirmation.
1
Check the CW (Rewrite Registered String) command operation.
1. Enter "43", the CW command No., in the data memory
corresponding to the PLC Command Address (MW100 in
this example), and enter the parameters in order.
The figure on the right shows an example of rewriting the
Registered String of "T102: OCR tool" to "ABCDE".
‐ Parameter 1 102 (Tool ID: 102)
‐ Parameter 2 1 (In the case of "OCR": Always 1)
‐ Parameter 3 1 (Specify in string)
‐ Parameter 4 65 (ASCII code for "A")
‐ Parameter 5 66 (ASCII code for "B")
‐ Parameter 6 67 (ASCII code for "C")
‐ Parameter 7 68 (ASCII code for "D")
‐ Parameter 8 69 (ASCII code for "E")
‐ Parameter 9 0 (Always 0 at the end of the string)
* The address to use is 1 word for Command No. and 2
words for other parameters.
2. Enter 1 in the data memory corresponding to the PLC
Command Execution Address (bit) (MW002 in this
example).
* The address to use is 1 word.
When the command is successful: CV‐X writes "1" into Command
Complete Address (bit), and "0" into Command Result Address.
When the command fails: CV‐X writes "1" into Command Complete
Address (bit), and an error code into Command Result Address.
3. The command is executed.
4. Check if the values of the data memory corresponding to
the PLC Command Complete Address (bit) and Command
Result Address (MW003 and MW200 respectively in this
example) have changed.
[Registering watch variables]
Double‐click the variable column to enter variables. To display in 2 words,
specify ML + memory number.
To display in 1 word, specify MW + memory number.
[Specifying the display method]
Right‐click a variable to specify the display method.
To display decimally, select "Decimal".