V780 Command Details; Single-Access Communications Commands - Omron V780-Series User Manual

7-2

V780 Command Details

7-2-1

Single-access Communications Commands

READ ID
Function
This command reads the ID code of the RF Tag in the communications field.
Command Area
Signal/data
CmdCode/Command Code
CmdParam1/Command Parameter 1
CmdParam2/Command Parameter 2
Reserved/Reserved Area
Cnt Response/Update Counter
Response
Response Area
Signal/data
ErrCode/Error Code
RespInfo1/Response Information 1
RespInfo2/Response Information 2
RespInfo3/Response Information 3
Cnt/Update Counter
RespData/Response Data
ID Data
UHF RFID System V780-series Reader/Writer User's Manual (EtherNet/IP
Data type Size
WORD 2 bytes 0001 hex
WORD 2 bytes 0000 hex (Not used.)
WORD 2 bytes 0000 hex (Not used.)
WORD 2 bytes 0000 hex (Not used.)
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.
Data type Size
WORD 2 bytes Error code
WORD 2 bytes R/W no. of the Reader/Writer communicating
with the RF Tag
0000 to 0007 hex
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.
WORD 2 bytes Reception level
FFFF to FF9D hex (-1 to -99 [dBm])
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.
ARRAY[] 32 words ID data read from the RF Tag
OF WORD (64 bytes) [0]: StoredPC
[1 to 31]: EPC
TM
) (Z402)
7 Ethernet/IP Communications
Function
Function
The upper 5 bits are the EPC word length.
All bytes of the EPC code section that
exceed the EPC word length in the
StoredPC are filled with 00 hex.
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