User's Manual

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5.1.2 Output format
Generally, every input terminated by <CR> is acknowledged by the reader. The following response
protocols are different:
5.1.2.1 Instruction specific output
After entering a valid command without a parameter value, the system answers by sending the param-
eter value and <CR>. Example:
Command: GT <CR>
Output: Transponder number or No Read <CR>
5.1.2.2 Output after changing a parameter
After entering a valid command together with a parameter value, the system answers by sending the
parameter value and <CR>. Example:
Command: MD <SP> 2 <CR>
Output: 2 <CR>
After entering an invalid parameter value, the system answers with the corresponding error code. Error
message:
Command: MD <SP> 4 <CR>
Output: NAK <SP> #02 <CR>
5.1.2.3 Output at parameter query
Parameter settings can be queried by sending the command without adding a parameter value. Exam-
ple:
Command: MD <CR>
Output: 2 <CR>
5.1.3 Blank instuction
If a single <CR> is input, the reader answers with a single <CR>. Example: