Write_Epc_Id - Siemens SIMATIC Ident Function Manual

4.5.3.8

Write_EPC_ID

The "Write_EPC_ID" instruction 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 instruction 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 4-17
Table 4- 21
Parameter
LEN_ID_NEW
LEN_ID
EPCID_UID
IDENT_DATA
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 01/2019, C79000-G8976-C410-03
Instruction "Write_EPC_ID"
Explanation for the instruction "Write_EPC_ID"
Data type
SINT
SINT
SINT[62]
SINT[10]
4.5 Programming add-on instructions
Default values Description
0x00 Length of the current EPC-ID
0x00 Length of the previous EPC-ID
0 Previous EPC ID
0 Current EPC ID
Note:
When necessary, an array of any size
can be transferred to this parameter.
Note that the array must be ≥ 10 bytes
long (e.g. "SINT[12400]").
Configuring the instructions
41