Beckhoff EL34 Series Documentation page 272

Application examples
Fig. 176: View of the overall structure
Reading the terminal information
By multiplexing the over 400 (EL3443) or 600 values (EL3453), the complete reading of the terminal
information requires several PLC cycles.
If the application requires individual values more rapidly, these should be read out directly via the
corresponding PDOs cycle-currently.
272 Version: 1.5 EL34xx