Setting Up Communications Hardware and Network Communications
Table 7-13 Token Rotation Time versus Number of Stations and Amount of Data at 19.2 kbaud
Bytes Transferred
Bytes Transferred
per Station at
2
19.2 kbaud
stations
1
0.15
2
0.15
3
0.15
4
0.15
5
0.15
6
0.15
7
0.15
8
0.16
9
0.16
10
0.16
11
0.16
12
0.16
13
0.16
14
0.16
15
0.16
16
0.17
Table 7-14 Token Rotation Time versus Number of Stations and Amount of Data at 187.5 kbytes
Bytes Transferred
Bytes Transferred
per Station at
2
187.5 kbaud
stations
1
8.68
2
8.80
3
8.92
4
9.03
5
9.15
6
9.27
7
9.39
8
9.50
9
9.62
10
9.74
11
9.86
12
9.97
13
10.09
14
10.21
15
10.33
7-46
Number of Stations, with Time in Seconds
3
4
5
stations
stations
stations
0.22
0.30
0.37
0.22
0.30
0.37
0.23
0.30
0.38
0.23
0.30
0.38
0.23
0.30
0.38
0.23
0.31
0.38
0.23
0.31
0.39
0.23
0.31
0.39
0.24
0.31
0.39
0.24
0.32
0.40
0.24
0.32
0.40
0.24
0.32
0.40
0.24
0.32
0.40
0.24
0.33
0.41
0.25
0.33
0.41
0.25
0.33
0.41
Number of Stations, with Time in Milliseconds
3
4
5
stations
stations
stations
13.02
17.37
21.71
13.20
17.60
22.00
13.38
17.83
22.29
13.55
18.07
22.59
13.73
18.30
22.88
13.90
18.54
23.17
14.08
18.77
23.47
14.26
19.01
23.76
14.43
19.24
24.05
14.61
19.48
24.35
14.78
19.71
24.64
14.96
19.95
24.93
15.14
20.18
25.23
15.31
20.42
25.52
15.49
20.65
25.81
6
7
8
stations
stations
stations
0.44
0.52
0.59
0.45
0.52
0.60
0.45
0.53
0.60
0.45
0.53
0.61
0.46
0.53
0.61
0.46
0.54
0.61
0.46
0.54
0.62
0.47
0.55
0.62
0.47
0.55
0.63
0.47
0.55
0.63
0.48
0.56
0.64
0.48
0.56
0.64
0.48
0.57
0.65
0.49
0.57
0.65
0.49
0.57
0.66
0.50
0.58
0.66
6
7
8
stations
stations
stations
26.05
30.39
34.73
26.40
30.80
35.20
26.75
31.21
35.67
27.10
31.62
36.14
27.46
32.03
36.61
27.81
32.44
37.08
28.16
32.85
37.55
28.51
33.26
38.02
28.86
33.67
38.49
29.22
34.09
38.95
29.57
34.50
39.42
29.92
34.91
39.89
30.27
35.32
40.36
30.62
35.73
40.83
30.98
36.14
41.30
S7-200 Programmable Controller System Manual
9
10
stations
stations
0.67
0.74
0.67
0.74
0.68
0.75
0.68
0.76
0.69
0.76
0.69
0.77
0.70
0.77
0.70
0.78
0.71
0.78
0.71
0.79
0.72
0.80
0.72
0.80
0.73
0.81
0.73
0.81
0.74
0.82
0.74
0.83
9
10
stations
stations
39.07
43.41
39.60
44.00
40.13
44.59
40.66
45.17
41.18
45.76
41.71
46.35
42.24
46.93
42.77
47.52
43.30
48.11
43.82
48.69
44.35
49.28
44.88
49.87
45.41
50.45
45.84
51.04
46.46
51.63
A5E00066097-02