Siemens SIMATIC NET SCALANCE XM-400 - Page 72

Technical specifications
8.4 Switching properties
SCALANCE XM-400
72 Operating Instructions, 09/2018, C79000-G8976-C306-08
Note
The number of SCALANCE XM
-
400 modules connected in a line influences the frame delay.
When a frame passes through the switch, this is delayed by the store
-and-
forward function of
the SCALANCE XM
-400 by 25-70 microseconds (at 1000 Mbps).