Rf Communications Command Options - Omron V780 Series User Manual

7 Modbus/TCP Communications
7-3 RF Communications Command
Options
This section describes the options that you can use together with RF communications commands (mul-
tiaccess or Modbus expansion). You can specify options to get the UII (EPC) of the RF Tag, the recep-
tion level, or other communications information together with the normal data for the command.
For commands with the multiaccess specification, the communications information specified with the
option is returned in the response for the command that gets the execution results, i.e., the two com-
mands are used together.
For commands with the Modbus expansion, the communications information specified with the option is
returned as an attachment to the response.
Options
 Options
Item
UII (EPC) Bit 0
Reception Bit 1
level
Reserved 1 Bits 2 to 3
Diagnostic Bit 4
result
Reader/Writer Bit 5
Number
Reserved 2 Bits 6 to 15
Option Specification Examples:
Specify 0001 hex to have the UII (EPC) attached.
Specify 0003 hex to have the UII (EPC) and reception level attached.
Specify 0011 hex to have the UII (EPC) and diagnostic results attached.
7 - 10
Relevant bit
The StoredPC and UII (EPC code) are attached.
The reception level (signed hexadecimal) is attached.
FFFF to FF9D hex (-1 to -99 [dBm])
• A value of 0 will be set if processing ended in an error.
• These bits are reserved.
The diagnostic results (4-digit hexadecimal) are attached.
If communications diagnostics are disabled, 0000 hex is
attached.
For details, refer to Response Formats on page 7-136 under
GET COMMUNICATIONS DIAGNOSTIC INFORMATION on
page 7-136.
This adds the Reader/Writer number (4 hexadecimal digits)
of the reader/writer communicating with the RF Tag.
0000 hex to 0007 hex
• These bits are reserved.
Description
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Information size
32 words
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