Omron V780-HMD68-EIP-JP, Руководство пользователя

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7 Ethernet/IP Communications
UHF RFID System V780-series Reader/Writer User’s Manual (EtherNet/IP
TM
) (Z402)
7-
2 V780 Co
mm
and
Detail
s
7
7-2
-1 Single
-access Communicat
ions Comman
ds
7-2 V780 Command Details
z Function
This command reads the ID code of the RF Tag in the communications field.
z Command Area
z Response Area
7-2-1 Single-access Communications Commands
READ ID
Signal/data Data type Size Function
CmdCode/Command Code WORD 2 bytes 0001 hex
CmdParam1/Command Parameter 1 WORD 2 bytes 0000 hex (Not used.)
CmdParam2/Command Parameter 2 WORD 2 bytes 0000 hex (Not used.)
Reserved/Reserved Area WORD 2 bytes 0000 hex (Not used.)
Cnt Response/Update Counter
Response WORD 2 bytes 0000 hex (At command execution)
The value is counted up due to a change in
the update counter.
For details, refer to
7-1-5 Update
Counter/Update Counter Response on page
7-10.
Signal/data Data type Size Function
ErrCode/Error Code WORD 2 bytes Error code
RespInfo1/Response Information 1 WORD 2 bytes R/W no. of the Reader/Writer communicating
with the RF Tag
0000 to 0007 hex
RespInfo2/Response Information 2 WORD 2 bytes Communications diagnostics result
When communications diagnostics is enabled:
Set the communications diagnostics result
When communications diagnostics is dis-
abled: 0000 hex (fixed)
For details, refer to
GET COMMUNICATIONS
DIAGNOSTIC INFORMATION on page 7-70.
RespInfo3/Response Information 3 WORD 2 bytes Reception level
FFFF to FF9D hex (-1 to -99 [dBm])
Cnt/Update Counter WORD 2 bytes 0000 to FFFF hex
The value is counted up due to a change in
the response area.
For details, refer to
7-1-5 Update
Counter/Update Counter Response on page
7-10.
RespData/Response Data
ID Data ARRAY[]
OF WORD 32 words
(64 bytes) ID data read from the RF Tag
[0]: StoredPC
The upper 5 bits are the EPC word length.
[1 to 31]: EPC
All bytes of the EPC code section that
exceed the EPC word length in the
StoredPC are filled with 00 hex.