User's Manual

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After entering an invalid parameter value, the system answers with the corresponding error code (see chap-
ter 3.6 ).
3.3.3 Response to a parameter query
Parameter settings can be queried by sending the command without adding an parameter value. Example:
Command: MD <CR>
Output: 1 <CR>
3.4 Parameters
Generally a command comes with one parameter value at the most. Command code and paramter value
are separated by SP>.
3.4.1 Set of parameters
The ARE K1 is provided with three independent sets of parameters:
• the set of parameters ex work
• the set of parameters specific to the application plus
• the actual set of parameters
The set of parameters ex work enclose all original reader settings. This set is stored in the EPROM and
can’t be changed. The set of parameters specific to the application is stored in an EEPROM. This set de-
fines the configuration after a cold start. The actual set of parameters defines the actual function of the
decoder. It is stored in the RAM.
All changes of the parameter values have an effekt to the actual set of parameters only. This set is tem-
porary, that means all values are lost after switching off the decoder.
Using the VSAVE command (see chapter 4.19) the actual set can be stored permanently as set of pa-
rameters specific to the application. Then all values are loaded back automatically after a cold start.
3.5 Blank input line
If a single <CR> is input, the reader answers with a single <CR>. Example:
Command: <CR>
Output: <CR>