Omron C200HW-PRM21 Operation Manuals page 39

Performance
Bus cycle time vs number of slaves
25.0
20.0 500
1500
15.0
3000
12000
10.0
5.0
0.0
0 4
The second figure shows the effect of the number of masters on the bus cycle
time. The values of the parameters are:
n
ns
nm
nr
Baud rate
Bus cycle time vs number of masters
40.0
Baud rate
35.0
kbit/s
30.0
500
1500
25.0
3000
20.0
12000
15.0
10.0
5.0
0.0
0 4
This figure is resembles the first figure. An increase of the number of masters
also increases the number of slaves and thus increases the number of data
bytes that needs to be transferred. The only difference is the addition of the
time to pass the token from one master to the other master and the total time
on checking the stations is increased. This is an addition of about 270 t
additional master.
8 12 16 20
Slaves
= 4
= nm (each master has one slave)
= variable on the x-axis
= 0
= variable per curve
8 12 16
Masters
Section 3-2
24 28 32
20 24 28 32
per
BIT
23