Communication interface
6.4 Commands of the communication module
RF182C communication module
54
Operating Instructions, 10/2010
6.4.2
readTagData
With this command you can read subareas or the complete tag insofar as there are address
ranges in linear order physically on the tag.
Below the XML command for the read command (readTagData) is described:
XML command
<command>
<readTagData>
<startAddress>Address</startAddress>
<dataLength>Datalength</dataLength>
</readTagData>
</command>
Information on the memory sizes of the tags can be found in section Addressing of the RFID
tags (Page 123).
XML response
Below the XML response without error entry (for error entries, see section Error messages
(Page 71)) is described:
<reply>
<resultCode>Errorcode</resultCode>
<readTagData>
<returnValue>
<data>Data</data>
</returnValue>
</readTagDatat>
</reply>
Parameter
Parameter
Data type
Values
Address
ASCII hex
0000 ... FFFF (4 x ASCII)
•
0 to maximum length of the (user data -1); the user data is read from
the tag starting from this address. (A data length) must be
smaller than the end address.
•
Note that this parameter depends on the tag. For detailed information
on the address, refer to the respective MOBY System Manual.
Datalength
ASCII hex
0000 ... FFFF (4 x ASCII)
The contents of Datalength refer to the number of bytes to be read from
the tag. Twice the number of characters is transmitted in the "Data" field
of the XML response.
Data
ASCII hex
max. 128 KB ASCII per command