Maximum number of input / output variables

AI Inference Server Release Notes

Portfolio
Industrial AI
Product
AI Inference Server
Software version
v2.7
Edition
01/2026
Language
English

The maximum number of input/output topics is different based on the used hardware and frequency of the incoming data. The following table shows how many variables can be handled on different frequency of the incoming data using S7 payload format structure:

{
 "seq":1,
 "vals":
   [
      {
         "id":"175",
         "ts":"2023-08-11T08:21:01.105Z",
         "val":"15",
         "qc":3
      }
   ]
}

Hardware: IPC427E with Intel® Xeon® (with 4 cores) 16 GB RAM , 240 GB SSD , NO GPU

Frequency (ms) Maximum number of input variables
1 1
5 5
10 10
50 50
100 100
200 200
300 200
400 600
500 600
700 800
1000 1000