Siemens SIMATIC Ident Function Manual page 96

Configuring the instructions
4.6 Programming the Ident profile
Example of command structure
Table 4- 86 Example of a command structure with 3 commands (without EPC-ID)
Com-
mand
Command
1
Command
2
Command
3
With chaining, the entire "IID_CMD_STRUCT" buffer ("IID_CMD_STRUCT[0...n]") can be
used. The start of the chain is set with the "CMDSEL" parameter.
If several commands are executed in the chain for which data is returned, the position of
the data in the receive buffer "RXREF" can be set for each individual command using the
"IID_CMD_STRUCT[x].OFFSETBUFFER" parameter.
Note
"IID_CMD_STRUCT[0]" reserved for "INIT"
In the Ident profile, the "IID_CMD_STRUCT[0]" parameter is normally reserved for "INIT".
If you want to use "IID_CMD_STRUCT[0]" for another command, make sure that the
reset parameters are written into this parameter when there is an "INIT".
96
Parameter
IID_CMD_STRUCT[1].CMD
IID_CMD_STRUCT[1].ATTRIBUTES
IID_CMD_STRUCT[1].EXT_UHF.
INVENTORY.DURATION
IID_CMD_STRUCT[1].EXT_UHF.
INVENTORY.DUR_UNIT
IID_CMD_STRUCT[1].OPTIONS.
CHAINED
IID_CMD_STRUCT[2].CMD
IID_CMD_STRUCT[2].EXT_UHF.
MEM_BANK
IID_CMD_STRUCT[2].LEN_DATA
IID_CMD_STRUCT[2].ADDR_TAG
IID_CMD_STRUCT[2].OPTIONS.
CHAINED
IID_CMD_STRUCT[3].CMD
IID_CMD_STRUCT[3].EXT_UHF.
MEM_BANK
IID_CMD_STRUCT[3].LEN_DATA
IID_CMD_STRUCT[3].ADDR_TAG
IID_CMD_STRUCT[3].OPTIONS.
CHAINED
Value Description
0x69 Execute an inventory with a
duration of 2 inventories.
0x80
2
1
true
0x70 Read 10 bytes from the user
bank starting at address 0.
3
10
0
true
0x71 Write 10 bytes to the user bank
starting at address 20.
3
10
20
false
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 07/2020, C79000-G8976-C410-04