Read_Tid - Siemens SIMATIC Ident Function Manual

Configuring the instructions
4.5 Programming instructions
Table 4- 25 Explanation for the instruction "Read_EPC_Mem"
Parameter
LEN_DATA
LEN_ID
EPCID_UID
IDENT_DATA
4.5.3.5

Read_TID

The "Read_TID" instruction reads data from the TID memory area (Tag Identification
Memory Bank) of the RF600 transponder. The length of the TID to be read is specified by
the "LEN_DATA" parameter. The length of the TID varies depending on the transponder
and can be found in the transponder data sheet.
Figure 4-14 Instruction "Read_TID"
46
Data type Default values
INT 0x00
SINT 0x00
SINT[62] 0
SINT[10] 0
Description
Length of the EPC memory to be
read out (1 ... 62 bytes)
Default value: 0x00 ≙ unspecified
Length of the EPC-ID/UID
single tag access (RF600)
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")
Data buffer in which the read EPC
memory data is stored.
Note:
For Variant, currently only a "SINT"
with a variable length can be creat-
ed. For Any, other data types/UDTs
can also be created.
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 07/2020, C79000-G8976-C410-04