KEYENCE CV-X Series User Manual
Page 20
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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 "Memory" → "D" is selected, and the memory area monitor display is
used in CX Programmer for confirmation (double‐click the memory area to enter a value).
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 (D100 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)
* Specify the Command No. as 1 word, and other
parameters as 2 words.
2. Enter 1 in the data memory corresponding to the PLC
Command Execution Address (bit) (D002 in this
example).
* The address to use is 1 word.
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 (D003 and D200 respectively in this example)
have changed.
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.
Set the command parameter in 2 word display mode.
Set other settings in 1 word display mode.