RFID System
User’s Manual
Section 6
Sp
eci
fic
a
tion
s and
Di
mens
ion
s
Section 6
Appendices
141
Communications Time
TAT represents the total time from when a command is first sent from the host device until a response
is received. The communication time represents the time required for communications between the
Hand-held Reader/Writer and the RF Tag, not including communications with the host device.
V680-D1KP52MT/V680-D1KP66MT/V680-D1KP66T/V680-D1KP58HT
V680-CH1D TAT
V680-CHUD TAT
Note 1) In V680 mode, communications specifications for TAT data with the host device represent values with a baud rate of
9,600 bps, a bit length of 8 bits, 1 stop bit, and even parity. In this example, characters are sent consecutively, with no
spaces between them.
2) The number of bytes in the TAT data is the number for hexadecimal encoding.
TAT
Comm
u
nication time
Command
Response
Example
12
8
0
512
256 640
8
96
76
8
1,024
0
4,000
3,500
3,000
2,500
2,000
1,500
1,000
500
5,000
4,500
Nu
m
b
er of processing data
b
ytes
T
A
T
(ms)
Read
W
rite
12
8
0
512
256 640
8
96
76
8
1,024
0
2,000
1,500
1,000
500
2,500
Nu
m
b
er of processing data
b
ytes
T
A
T
(ms)
Read
W
rite
