Programming via SIMATIC controller
8.5 Programming Ident blocks
SIMATIC RF650R/RF680R/RF685R
120 Configuration Manual, 03/2018, C79000-G8976-C386-06
The "Write" block writes the user data from the "IDENT_DATA" buffer to the transponder to
memory bank 3 (USER area). The physical address and the length of the data are
transferred using the "ADR_TAG" and "LEN_DATA" parameters. Specific access to a certain
transponder takes place with the optional "EPCID_UID" and "LEN_ID" parameters.
Figure 8-7 "Write" block
Table 8- 4 Explanation of the "Write" block
ADR_TAG DWord DW#16#0 Physical address on the transponder
Length of the data to be written
LEN_ID Byte B#16#0 Length of the EPC-ID/UID
Default value: 0x00 ≙ unspecified
single tag access (RF680R, RF685R)
EPCID_UID Array[1...62] of
Byte
0 Buffer for up to 62 bytes EPC-ID
2 - 62-byte EPC-ID is entered at the
start of the buffer (length is set by
IDENT_DATA Any / Variant 0 Data buffer with the data to be written.
Note:
For Variant, currently only an "Ar-
ray_of_Byte" with a variable length
can be created. For Any, other data
types/UDTs can also be created.
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