Siemens Simatic Ident Function Manual page 28

Setting parameters for blocks
3.4 Programming Ident blocks
Table 3- 7
Parameter
ADDR_TAG
LEN_DATA
LEN_ID
EPCID_UID
IDENT_DATA
You can find additional information on working with optical reader systems in the operating instruc-
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tions for "SIMATIC MV420 / SIMATIC MV440" and "SIMATIC MV500".
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Explanation of the "Write" block
Data type
DWord
Word
Byte
Array[1...62] of
Byte
Any / Variant
Default values Description
DW#16#0 Physical address on the transponder
where the write starts. You will find
more information on addressing in the
section "Transponder addressing
(Page 113)".
With MV: Address is always 0.
W#16#0 Length of the data to be written
B#16#0 Length of the EPC-ID/UID
Default value: 0x00 ≙ unspecified
single tag access (RF200, RF300,
RF61xR, RF68xR)
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 buffer (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 element [5]-[8]
("LEN_ID = 8")
Default value: 0x00 ≙ unspecified
single tag access (RF620R, RF630R)
0 Data buffer with the data to be written.
With MV: The first byte encodes the
corresponding MV command.
Note:
For Variant, currently only an "Ar-
ray_of_Byte" with a variable length
can be created. For Any, other data
types/UDTs can also be created.
Ident profile and Ident blocks, standard function for Ident systems
Function Manual, 10/2018, C79000-G8976-C387-04
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