Setting parameters for blocks
3.5 Programming the Ident profile
Ident profile and Ident blocks, standard function for Ident systems
Function Manual, 10/2018, C79000-G8976-C387-04
79
Before you can start a command with "EXECUTE" or "INIT", you need to define the
command. To allow simple definition of a command, the command buffer "CMDREF" was
created using the "IID_CMD_STRUCT" data type. In the command buffer, you have 100
areas available in which commands can be set. The parameter "CMDSEL" specifies which
command [1...n] is started with "EXECUTE".
Remember that the first element in the buffer is always reserved for "INIT". This means that
if "INIT" is set, "CMDSEL" must be set to "1" and element "1" in the CMD buffer must be
filled with the relevant settings. The following table contains the command structure of the
parameters. Not every command uses all parameters.
Table 3- 55 Command structure of the parameters
CMD BYTE B#16#0 Command code (compare the table in the section
"Commands of the Ident profile (Page 77)".)
OFFSETBUFFER INT 0 Relative offset within the received data buffer. The pa-
rameter specifies the address within the memory area at
which the first byte of the received data must be stored
or the first byte of the data to be sent is expected.
All subsequent bytes must be stored in ascending ad-
EPCID_UID ARRAY[1...6
2] OF BYTE
B#16#0 Buffer for up to 62 bytes EPC-ID, 8 bytes UID or 4 bytes
handle ID.
• 2 - 62-byte EPC-ID is entered at the start of the buff-
er (length is set by "LEN_ID")
• 8-byte UID is entered at the start of the buffer
("LEN_ID = 8")
• 4-byte handle ID must be entered in the array ele-
ment [5]-[8] ("LEN_ID = 8")
Default value: 0x00 ≙ unspecified single tag access
Amount of data to be read/written in bytes
Physical start address on the transponder
ATTRIBUTES BYTE B#16#0 Sub command name for several commands (e.g.
"READER-STATUS", "INVENTORY", etc.)
CHAINED BOOL FALSE
• 0x00 = not chained
• 0x01 = chained
All chained commands must have this bit set except the
last command. The commands are worked through in
the order in which they are located in the CMD structure.
CONFIG BYTE B#16#0
• 0x01 = reset, no configuration data
• 0x02 = no reset, configuration data to be sent
• 0x03 = reset, configuration data to be sent
• 0x80 = no reset, only individual parameters
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