Omron V670 Series, Руководство пользователя

Страница: 35 / 143

2-5 Communication Range Specifications
2-17
2-5-2 Operation Time (Reference)
There are TAT (Turn Around Time) and communication time in the operation time.
TAT means the total processing time required to operate V670 from the viewpoint of a host device. The communication time means a
time required for the communication between an antenna and tag, excluding host communication.
♦
Communication time
Time required for the communication between an antenna and ID tag. The time varies depending on data amount to be read and written.
The communication time can be calculated from the charts and formulas below.
• Read • Write
•
Write (with verification)
Command
Response
Communication time
Number of processed bytes (Byte)
Comm
unicat
ion t
im
e
(
m
s)
Number of processed bytes (Byte)
Com
m
unicat
ion t
ime
(ms
)
Number of processed bytes (Byte)
Com
m
unicat
ion t
ime
(m
s)
Command Bytes Communication
time (ms)
Read 1 to 64 bytes
65 to 128 bytes
0.07 x N + 4.22
0.07 x N + 5.64
ID Read 4 bytes 1.59
Write 1 to 128 bytes 0.07 x N + 4.72
Write
(with verification)
1 to 64 bytes
65 to 128 bytes
0.14 x N + 6.45
0.14 x N + 7.79
N: Number of bytes to be processed