I currently have an operational IFM Efector barcode scanner successfully reading codes that appear at Data[6] through the EIP connection. I am utilizing a copy command to transfer the code to a string. Despite specifying a length of 1, the command is copying all characters, raising the question of why the specified length is not being followed. It seems that the length parameter is not having any impact on the output.
The "Length" parameter in the COP instruction dictates how many "Dest" elements are to be copied. For instance, when copying data from a STRING datatype with a size of 86 bytes, the COP instruction will copy all 86 bytes. This ensures that the correct amount of data is transferred during the copying process.
It sounds like you might be encountering a common issue where the length parameter doesn't limit the number of characters copied, rather it simply specifies the maximum number of characters it can copy. If the code at Data[6] exceeds this limit, the copy command will take the whole length of the code instead of truncating it. Instead of using the length parameter to control the output, you might want to manually trim the string after it has been copied.
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Answer: The length parameter in the copy command might not be working as expected due to potential issues in the configuration or the way the command is being utilized. It's important to review the syntax and implementation of the copy command to ensure it is used correctly for converting SINT to a string with the desired length.
Answer: To efficiently convert a SINT to a string with the desired length using a COP instruction, make sure to carefully define and handle the data conversion process. You may need to review the data handling logic, the configuration settings, and the implementation of the copy command to ensure the conversion is done accurately.
Answer: If the copy command is not adhering to the specified length and is copying all characters, consider checking the data types, variable declarations, and the way data is being copied in your program. Verify that the length parameter is correctly set and that there are no conflicting instructions impacting the conversion process. Additionally, reviewing the scanner's manual or seeking assistance from the manufacturer's
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