Omron V700 Series Operation Manual page 124

Communications Time
Read/Write Sync
Actual Communications
Time in Multiple,
Simultaneous Access
Mode
Calculation Formula
Operation
Reading
Note N: Number of pages processed
Writing
Reading
Number of bytes processed
Calculation Formula
Operation
Read
Write
Note N: Number of pages processed
The actual communications time between the Controller and ID Tag with multi-
ple, simultaneous access mode varies with the operating conditions, such as the
number of ID Tags in the communications area and the ID code combination of
each ID Tag as well as the number of bytes to be processed.
The following table lists average values of communications time as reference
values on condition that the ID codes are used at random.
Number of ID Tags
5
10
15
20
30
50
Note 1. The provided TAT data is an example in which the V700-CD1D Controller is
used under the following conditions for host communications:
The data is continuously sent with no space between characters, a baud
rate of 9,600 bps, and a data length of 7 bits with 2 stop bits and even parity.
2. The number of bytes in TAT data is the number of code-specified bytes in
ASCII.
Note In actual operation, allow at least a 10% margin for the communications time
when auto commands are used, otherwise a communications error may result.
Actual communications time
(msec)
T = 46.7N +107.4
Actual
communications
time (ms)
Number of pages processed
Actual communications time
(msec)
T = 52.8N + 119.6
T = 52.8N + 172.4
8 bytes to be read (ms)
579
1,191
1,857
2,523
3,853
6,344
Section
Writing
Reading
8 bytes to be written (ms)
873
1,547
2,275
3,002
4,455
7,192
8-4
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