Write - Siemens SIMATIC Ident Function Manual

Configuring the instructions
4.5 Programming instructions
Parameter
EPCID_UID
IDENT_DATA
You can find additional information on working with optical reader systems in the operating
1)
instructions for "SIMATIC MV420 / SIMATIC MV440" and "SIMATIC MV500".
4.5.2.2

Write

The "Write" writes the user data from the "IDENT_DATA" buffer to the transponder. The
physical address and the length of the data are transferred using the "ADDR_TAG" and
"LEN_DATA" parameters. For RF600 readers, the instruction writes the data to memory
bank 3 (USER area). Specific access to a certain transponder takes place with the
optional "EPCID_UID" and "LEN_ID" parameters.
Figure 4-6
34
Data type
SINT[62]
SINT[10]
Instruction "Write"
Default values Description
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")
0 Data buffer in which the read data is
stored.
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]").
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 07/2020, C79000-G8976-C410-04