V680-HS65-R datasheet(47/59 Pages) OMRON

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V680 Series

TAT When Using an ID Controller (Reference Values)

TAT (Turn Around Time)

TAT refers to the total time required from the point at which a host device (such as a personal computer) starts sending a command until a response

is received.

Command send time:

This is the time required for sending a command from the host device to the Controller.

It varies depending on the communications speed and format.

RF Tag communication time: This is the time required for communication between the Antenna and the RF Tag.

Response receipt time:

This is the time required for returning a response from the Controller to the host device.

It varies depending on the communications speed and format.

• For an ordinary command

• Expansion Read Command

• Expansion Write Command

TAT = Command send time + RF Tag communication time + response

RDA1

RD001234

TAT

RF Tag

communication time

(Command)

Response

XRA1

ID Controller

Host

TAT

(Command)

Command send time

Communications

time with Tag

Frame 1

(Response 1)

Frame 2

(Response 2)

Frame n-1

(Response n-1)

Frame n

(Response n)

(Delimiter)

Response reception time

XWA1

XW00 CR

ID Controller

TAT

(Command)

(Response 1)

(Response 2)

(Response n-1)

Host

Command send time

Communications

time with Tag

(Response n)

Response

reception time

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