Write_Epc_Id - Siemens Simatic Ident Function Manual

Setting parameters for blocks
3.4 Programming Ident blocks
3.4.2.8

Write_EPC_ID

The "Write_EPC_ID" block overwrites the EPC-ID of the RF600 transponder and adapts the
length of the EPC-ID in the memory of the transponder. The new EPC-ID length to be written
is specified with the "LEN_ID_NEW" parameter and the previous EPC-ID is specified using
the "LEN_ID" and "EPCID_UID" parameters.
Make sure that when you execute the block only one transponder is located in the antenna
field. This ensures that the identification when writing the ID is unique. If there is more than
one transponder in the antenna field, a negative response is returned.
Figure 3-20
Table 3- 25
Parameter
LEN_ID_NEW
LEN_ID
EPCID_UID
IDENT_DATA
48
"Write_EPC_ID" block
Explanation of the "Write_EPC_ID" block
Data type
Byte
Byte
Array[1...62] of
Byte
Any / Variant
Default values Description
W#16#0C Length of the current EPC-ID
B#16#0 Length of the previous EPC-ID
0 Previous EPC ID
0 Current EPC ID
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