Chaining - Siemens SIMATIC Ident Function Manual

4.6.4.8

Chaining

You can send chained commands with the Ident profile as well as the "Advanced"
instruction. Chained commands are sent in their entirety to the reader without waiting
for the results of the first command. This function allows you to execute various
transponder commands with one command start.
With both instructions, you have a command buffer of 10 commands available ("SINT[n]"
of "IID_CMD_STRUCT"). In each command structure, there is a "Chained" bit. This bit
must be set for each chained command. In the last chained command, this bit must not
be set so that the instruction recognizes that the chain has ended.
Note
Chaining function is device-specific
Please check whether or not the Ident device you are using supports chaining.
At the time of publication of this manual, chaining is supported only by the RF600
readers as well as RF18xC/RF18xCI communication modules.
Overview of the commands
Table 4- 85 Overview of the commands with which chaining is possible
Command
PHYSICAL-READ
PHYSICAL-WRITE
READER-STATUS
TAG-STATUS
INVENTORY
FORMAT
PUT
WRITE-ID
KILL-TAG
LOCK-TAG-BANK
Ident profile, Add-on instruction for Rockwell systems
Function Manual, 07/2020, C79000-G8976-C410-04
Command code Description
HEX ASCII
0x70 'p' Reads data from a transponder / optical reader
system by specifying the physical start address, the
length and the password.
0x71 'q' Writes data to a transponder / optical reader sys-
tem by specifying the physical start address, the
length and the password.
0x74 't' Reads out the status of a communications module.
This command must not be the last command with-
in the chain.
0x73 's' Reads out the status of a transponder.
0x69 'i' Requests a list of all currently accessible tran-
sponders within the antenna range.
0x66 'f' Initializes the transponder.
0x65 'e' Transfers further commands not specified in the
standard profile. To this end, a corresponding data
structure is defined in the send data buffer for each
command.
0x67 'g' RF600:
Writes a new EPC-ID to the transponder.
0x6A 'j' RF600:
The transponder is permanently deactivated.
0x79 'y' RF600:
Defines a password for transponder access.
Configuring the instructions
4.6 Programming the Ident profile
95