20
13
-0
4
32
IUH-F117-V1-*
Operation
Enhanced Read Special Read-Only Code ES
This command continuously attempts to read the UII segment from tags
according to EPC Gen2 (ISO/IEC 18000-63). If the <SpecialFixcode> of a tag is
read, this is reported once to the control interface. If there is no tag in the
measurement range, or if the tag leaves the measurement range, a status 5 is
reported to the control interface.
Example:
ES10 continuously reads the UII segment.
The length of the UII/EPC can vary depending on the type of tag. The data is
structured as follows:
<SpecialFixcode> = <PC> & <UII/EPC>
<PC> corresponds to the protocol control word in accordance with EPC Gen 2
(ISO/IEC 18000-63), 2 bytes long.
<UII/EPC> contains the usage data.
Single Write Special Read-Only Code SP
This command writes a <Length> byte long UII/EPC code to tags according to
EPC Gen 2 (ISO/IEC 18000-63).
<Length> = Length of the <SpecialFixcode> in ASCII
hex
The data length <Length> must be a whole number multiple of 2 bytes because in
accordance with EPC Gen 2 (ISO/IEC 18000-63), <UII/EPC> must be written in
16-bit words. Only the lengths 2
dec
, 4
dec
, ... 14
dec
(= 2
ASCII
, 4
ASCII
, ..., E
ASCII
) are
permissible. The length is shown in hexadecimal format, and includes the length
of PC and UII/EPC. If a UII/EPC of 96 bits is written, this results in 2 + 12 = 14
bytes = E
ASCII
Byte.
<SpecialFixcode> = <PC> & <UII/EPC>
<PC> corresponds to the protocol control word in accordance with EPC Gen 2
(ISO/IEC 18000-63), 2 bytes long.
<UII/EPC> contains the usage data.
Example:
SP1E.30.00.E2.00.90.51.33.02.00.92.18.20.56.12 writes the value ".30.00" for
<PC>, and the UII/EPC code ".E2.00.90.51.33.02.00.92.18.20.56.12" with a
length of 2 + 12 bytes = 14 bytes to IDENT
Control
channel 1.
Command: ES <ChanNo> 0 <CHCK> <ETX>
Response:
<Status> <ChanNo> <SpecialFixcode> <CHCK> <ETX>
Command: SP <ChanNo> <Length> <SpecialFixcode> <CHCK> <ETX>
Response:
<Status> <ChanNo> <CHCK> <ETX>
