Read_Epc_Mem - Siemens SIMATIC Ident Function Manual

Configuring the instructions
4.5 Programming add-on instructions
4.5.3.3

Read_EPC_Mem

The "Read_EPC_Mem" instruction reads data starting at address 4 from the EPC memory of
the RF600 transponder. Access is to bank 1 as of the start address 4. The length of the EPC
memory to be read out is specified by the "LEN_DATA" parameter.
Figure 4-11
Table 4- 14
Parameter
LEN_DATA
LEN_ID
EPCID_UID
IDENT_DATA
34
Instruction "Read_EPC_Mem"
Explanation for the instruction "Read_EPC_Mem"
Data type
INT
SINT
SINT[62]
SINT[10]
Default values Description
0x00 Length of the EPC memory to be read
out (1 ... 62 bytes)
0x00 Length of the EPC-ID/UID
Default value: 0x00 ≙ unspecified
single tag access (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 in which the read EPC
memory data is stored.
Note:
For Variant, currently only a "SINT"
with a variable length can be created.
For Any, other data types/UDTs can
also be created.
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 01/2019, C79000-G8976-C410-03