Using an experimental arrangement, the updating times of the signals on different S7-CPUs and access via TCP/IP were measured.
Configuration of the controllers:
-
Cycle OB1: 10 ms
-
ibaPDA base measurement time base: 1 ms
-
Connection mode TCP
There are many different factors that have influence on the measured updating times. A direct transfer to a specific plant configuration is only feasible to a certain extent.
|
Quantity structure |
8A +8D |
32A +32D |
64A +64D |
128A +128D |
256A +256D |
512A +512D |
1000A +1000D |
|---|---|---|---|---|---|---|---|
|
CPU |
Updating time [ms] |
||||||
|
CPU 314C 6ES7314 6EH04-0AB0 via internal PN-IF |
10 |
10 |
22 |
33 |
55 |
109 |
208 |
|
CPU 317 6ES7317 2EK14-0AB0 V3.2.10 via internal PN-IF |
10 |
11 |
22 |
33 |
54 |
109 |
207 |
|
CPU 317 6ES7317 2EK14-0AB0 V3.2.10 via CP343-1 LEAN |
33 |
39 |
77 |
124 |
215 |
431 |
825 |
|
CPU 412-2PN 6ES7412 3HJ14-0AB0 V6.0.3 via internal PN-IF |
2 |
2 |
2 |
4 |
7 |
12 |
21 |
|
CPU 412-2PN 6ES7412 3HJ14-0AB0 V6.0.3 via CP443-1 |
6 |
6 |
8 |
14 |
22 |
40 |
72 |
|
WinAC via internal PN-IF |
0 |
0 |
0 |
1 |
1 |
3 |
5 |
|
CPU1212C 6ES7 212-1BD30-0XB0 V2.0 via internal PN-IF |
20 |
20 |
39 |
59 |
99 |
197 |
374 |
|
CPU1516 6ES7 516-3AN00-0AB0 V1.0 via internal PN-IF |
1 |
1 |
1 |
1 |
2 |
4 |
8 |
