User's Manual

7-1 Turn Around Time and Communication Time
7-1
7-4
7-1-2 ISO mode - Communication time of I.CODE SLI chip
（1）Communication time in Single Access Mode
● Fast mode
● Standard mode
Calculation Formula：I.CODE SLI Chip
Actual communications time (msec) N: Number of pages processed
Communicatio
n time setting
Fast mode Standard Mode
Read
T = 1.3N + 18.0
T = 1.3N +104
Write
T = 13N +18.0
T = 90N + 105
：・ The provided TAT graph data shows an example in which the V720S-BC5D4 Controller is used
with the following communications specifications for host communications: Data is continuously
sent with no space between characters, at a baud rate of 38,400 bps, in a data length of 7 bits with
1 start bit, 2 stop bits and even parity . The number of bytes in case ASCII are specified as the
data code.
・ The transmission rate of the Tag is set in Fast Mode as factory default.
(ms)
リード
ライト
0
20
40
60
80
100
120
140
160
180
1234567891011
処理ページ数
交信時間
(ms)
リード
ライト
0
20
40
60
80
100
120
140
160
180
1234567891011
処理ページ数
TAT
(ms)
リード
ライト
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1234567891011
処理ページ数
交信時間
(ms)
リード
ライト
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1234567891011
処理ページ数
TAT
writing
Reading
writing
Reading
Reading
Reading
writing
writing
Actual
communica
tions time
(ms)
Actual
communica
tions time
(ms)
Number of pages proceeds
Number of pages proceeds
Number of pages proceeds
Number of pages proceeds