Chaining - Siemens SIMATIC RF650R Configuration Manual

Interface to the SIMATIC controller
7.7 Programming the Ident profile
7.7.5

Chaining

With the Ident profile and the Advanced block, it is possible to send chained commands.
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 blocks, you have a command buffer of 10 commands available (Array [1...10] of
the "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 block recognizes that the chain has ended.
Overview of the commands
Table 7- 33
Command
PHYSICAL-READ
PHYSICAL-WRITE
INVENTORY
DEV-STATUS
WRITE-ID
KILL-TAG
LOCK-TAG-BANK
130
Overview of the commands with which chaining is possible
Command code
HEX ASCII
70 'p'
71 'q'
69 'i'
74 't'
67 'g'
6A 'j'
79 'y'
Description
Reads data from a transponder by specifying the
physical start address of the memory bank (UHF), the
length and the password.
Writes data to a transponder by specifying the physi-
cal start address of the memory bank (UHF), the
length and the password.
Requests a list of all currently accessible transpond-
ers within the antenna range.
Reads out the status of a communications module.
This command must not be the last command within
the chain.
RF680R/RF685R:
Writes a new EPC-ID to the transponder.
RF680R/RF685R:
The transponder is permanently deactivated.
RF680R/RF685R:
Defines a password for transponder access.
SIMATIC RF650R/RF680R/RF685R
Configuration Manual, 10/2015, C79000-G8976-C386-03