Siemens SIMATIC Ident Function Manual page 35

Table 4- 15 Explanation for the instruction "Write"
Parameter
ADDR_TAG
LEN_DATA
LEN_ID
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".
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 07/2020, C79000-G8976-C410-04
Data type Default values
DINT 0x00
INT 0x00
SINT 0x00
SINT[62] 0
SINT[10] 0
Configuring the instructions
4.5 Programming instructions
Description
Physical address on the transponder
where the write starts. You will find
more information on addressing in
the section "Transponder addressing
(Page 98)".
With MV: Address is always 0.
Length of the data to be written
Default value: 0x00 ≙ unspecified
Length of the EPC-ID/UID
single tag access (RF200, RF300,
RF61xR, RF68xR)
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 with the data to be writ-
ten.
With MV: The first byte encodes the
corresponding MV command.
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]").
1)
1)
35