Time Charts - Omron V680S-HMD64-EIP User Manual

Section 7
Host Communications Specifications

Time Charts

Time Charts

 Executing RF Tag Communications Commands
 Using the Once Communications Option
Command code
Command
Area
Command parameters
Command data
Response
Area
Response code
Response information
Response data
Communications field
1. The command code, command parameters, and command data are set from the PLC while the READY
signal is ON.
2. The user (PLC) turns ON the EXE signal. This tells the Reader/Writer to start execution.
3. When the Reader/Writer receives the instruction to start execution, it turns OFF the READY signal and
turns ON the BUSY signal.
4. The Reader/Writer detects an RF Tag and when communications end normally, it sets the response code,
response information, and response data and turns ON the NORM signal.
5. The user (PLC) detects that the NORM signal has turned ON and reads the response data. After reading
the data, the user (PLC) turns OFF the EXE signal. This tells the Reader/Writer to stop execution.
6. When the Reader/Writer receives the instruction to stop execution, it turns ON the READY signal and turns
OFF the BUSY signal and the NORM signal.
7. When command execution ends in an error (e.g., the Reader/Writer does not detect an RF Tag or
communications fail), it sets the response code and response information and turns ON the ERR signal.
8. The user (PLC) detects that the ERR signal has turned ON, reads the response code and response
information, and checks the error. After checking the error, the user (PLC) turns OFF the EXE signal. This
tells the Reader/Writer to stop execution.
9. When the Reader/Writer receives the instruction to stop execution, it turns ON the READY signal and turns
OFF the BUSY signal and the ERR signal.
RFID System
182
User's Manual
(EtherNet/IP TM )
EXE
READY
BUSY
NORM
ERR
1 2 3
RF Tag
4 5 6
RF Tag
missing
7 8 9