156
Section 7 Characteristics According to Application Conditions
RFID System
Operation Manual
Section 7
Appendix
■ TAT (Turn Around Time)
• The TAT depends on the type of Data Carrier being used (with or without a built-in battery).
• The TAT of Data Carriers without batteries also depends on the communications mode setting.
• The TAT is the total time required for the host device to receive a response after it has finished send-
ing a command.
Command send
time
: The time required to send a command from the host device to the ID Controller.
The command send time depends on the baud rate and communications
format.
Data Carrier
communications
time
: The time required for communications processing between the Read/Write
Head and Data Carrier. Refer to the next page to find the values.
Response reception
time
: The time required to return a response to the host device from the ID
Controller. The command send time depends on the baud rate and
communications format.
TAT = Command send time + Data Carrier communications time + Response reception time
RDA1 CR RD001234 CR
TAT
XRA1 CR CR CR CR CR
TAT
XWA1 CR
CR CR CR
CR CR
XW00 CR
TAT
Command
Communica-
tions time with
Data Carrier
Response
Command
Host device
ID Controller
Command send time
Communica-
tions time with
Data Carrier
Response
frame 1
Response
frame 2
Delimiter
Delimiter
Delimiter
Delimiter
Frame 1 Frame 2 Frame n-1
Response
frame n
Frame n
Response
frame n-1
Response reception time
Host device
ID Controller
Command
Response
frame 1
Response
frame 2
Response
frame n-1
Response
frame n
Command send time
Communica-
tions time with
Data Carrier
Response re-
ception time
Normal Commands
EXPANSION READ Command
EXPANSION WRITE Command
To Next Page
Loading...
Need help?
General
