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6. User's Guide
● Example of communication time calculation
Calculate the communication time for the configuration shown in Figure 6-1.
The communication time is the sum of the communication time of J.STATION (1), J.STATION (2) and
J.STATION (3). In the following calculation, the communication time is 11.1 ms.
Transmission speed
1 Mbps
Figure 6-1 Example of calculating communication time when J.STATIONs are connected
J.NET
J.STATION
Input 128 points
(1)
Output 128 points
J.STATION
Input 256 points
(2)
Output 256 points
J.STATION
Input 512 points
(3)
Output 512 points
Communication time = J.STATION (1) communication time
+ J.STATION (2) communication time
+ J.STATION (3) communication time
= 1.85 + 0.0031 x (128 + 128)
+ 1.85 + 0.0031 x (256 + 256)
+ 1.85 + 0.0031 x (512 + 512)
= 2.64
+ 3.44
+ 5.02
= 11.1 [ms]
6-2
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