5.4.4 Prefix and Code ID order selection
When both the Code ID and Prefix fields are configured to require output, the order of the
two fields can be selected through the following two setting codes, and the content order of the
other fields will be output later。
Prefix
Code ID+
5.5 Prefix
5.5.1 Add prefix
The prefix is a character string that can be customized and modified by the user before
decoding the information.
Allow prefix
5.5.2 Modify prefix
Read the "modify prefix content" setting code, and combine the read data code to modify
the prefix content. Use 2 hexadecimal values for each prefix character, and the prefix allows up to
16 characters. Please refer to Appendix C for the hexadecimal conversion table of character
values.
Example: Set the custom prefix to "CODE":
1. Check the character table to get the hexadecimal value corresponding to the 4 characters
of "CODE": 43, 4F, 44, 45;
2. Read the "Enable Setting Code" (if it is already turned on, you can ignore it);
3. Read the "modify prefix content" setting code;
4. Read the following data code: "4" "3" "4" "F" "4" "4" "4" "5";
5. Read the "Save" setting code;
*
Modify prefix content
15
Prefix
+Code ID
*No prefix