Communications Designation Function - Omron V670-CF01 User Manual

SECTION 3
Functions

Communications Designation Function

The CF Reader/Writer automatically detects Tags for the communications commands given in the following
table.
Symbol
Single Auto command
SA
Repeat Auto command
RA
Communications Designations (SA/RA)
SA and RA automatically detect Tags and communicate with them.
■ SA Designation
When the Single Auto command (SA) is specified, command processing is completed when communi-
cations have been completed.
Host to CF Reader/Writer
CF Reader/Writer to Host
Between CF Reader/Writer and Tag
■ RA Designation
When the Repeat Auto command (RA) is specified, the CF Reader/Writer waits for the next Tag each
time communications are completed. Once communications have been performed with a Tag, there
are no more communications with that Tag until the Tag has moved outside the communications area.
This processing is repeated until it is ended when the Command Processing Abort command (AA) is
received.
Host to CF Reader/Writer
CF Reader/Writer to Host
Between CF Reader/Writer and Tag
(Tag movement)
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User's Manual
Name
After the Single Auto command has been received, a communication is executed when a
Tag is detected in the communications area and a response is returned.
The operation specified under SA is repeatedly executed. The CF Reader/Writer commu-
nicates only once with each Tag, even if that Tag continues to be in the communications
area.
CF Reader/Writer
Tag
SA command
Response
Communica-
tions
Tag
(Tag movement)
RA command
Response
Waiting for a Tag
Communi-
cations A
Tag A
Description
Communications are started when a
Tag enters the communications area.
- Processing completed -
Response Response
Waiting for a new Tag Waiting for a new Tag
Communi- Communi-
cations B cations C
Tag B Tag C
AA command
Response
- Processing completed -