Omron V600 RFID System Operation Manual page 33

Movement of Data Carrier and Command Status
Read/Write Function
1,2,3...
Read/Write Command Processing: The read/write function is used for com-
munication when the Data Carrier is motionless. Therefore, it must be con-
firmed that the Data Carrier is at a specified position, i.e., in the
communication area of the R/W Head. If the Data Carrier is missing, the ID
Controller returns a response to that effect.
(Host computer) (ID Controller)
Read/Write
command
Read/Write
processing
Response
Command end
1. The host computer confirms that the Data Carrier is at a specified position
and transmits a command to the ID Controller.
2. The ID Controller performs write or read processing in accordance with the
command.
3. After the processing is complete, the ID Controller returns a response to
the host computer to indicate that the processing has ended. The host
computer, on receiving the response, moves the workpiece (with a Data
Carrier) on the conveyor line.
(Data Carrier)
Not approaching
Data Carrier
Stops
Data Carrier
Stops
Moves
Section 4-1
23