Technical specifications
8.4 Switching properties
SCALANCE XM-400
Operating Instructions, 09/2018, C79000-G8976-C306-08
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Technical specifications
Design, dimensions and weight
Weight
1250 g
Degree of protection
IP20
Dimensions (W x H x D)
140 x 150 x 125 mm
Installation options
•
Installation on a DIN rail
•
Installation on an S7-300 standard rail
•
Installation on an S7-1500 standard rail
Mean time between failure (MTBF)
at 40 °C ambient temperature
22 years
8.4
Switching properties
The switching properties listed below apply to the SCALANCE XM-400.
Switching properties
Aging time
Can be configured (default value: 40 seconds)
Max. number of learnable
addresses
16000
Switching technique
Store and forward
Latency
25 - 70 microseconds
Reconfiguration times for redundancy methods:
Redundancy method
Reconfiguration time
HRP
300 ms
Standby link
300 ms
MRP
200 ms
Full wire speed switching:
Number of frames per second
Frame length
At 100 Mbps
At 1000 Mbps
148810
1488095
64 bytes
84459
844595
128 bytes
45290
452899
256 bytes
23496
234962
512 bytes
11973
119732
1024 bytes
9615
96154
1280 bytes
8127
81274
1518 bytes