SCALANCE network components
4.5 SCALANCE X Industrial Ethernet Switches
Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
139
● Standby redundancy, see section "HRP (Page 89)"
● MRP interconnection, see section "MRP Interconnection (Page 86)"
Limiting the transfer rate of incoming and outgoing data
To limit the transfer load, the maximum number of data packets per second can be specified
for the individual ports.
The limit values can apply to the following category of frames:
● Broadcast: Special form of multicast.
● Multicast: A device sends a single data packet to several recipients
● Unicast: A device sends data packets to one recipient whose MAC address is not known
to the corresponding switch.
4.5.4 SCALANCE TAP
4.5.4.1 Description
Figure 4-4 SCALANCE TAP104
The unmanaged Industrial Ethernet Test Access Port SCALANCE TAP104 is optimally
suitable for frame output in 10/100 Mbps Industrial Ethernet (in particular PROFINET)
networks. Output frames can be analyzed for diagnostics of the data communication via
standard diagnostics software. The SCALANCE TAP104 can be directly integrated between
the connection of two active network nodes. The device is equipped with two electrical RJ45
ports with additional securing collars and two electrical TAP ports. The device has a rugged
housing and is designed for installation in control cabinets. It can be installed on the
standard DIN rail, SIMATIC S7-300 and S7-1500 standard rail or mounted directly to the
wall. The device has LEDs for device diagnostics of the device.
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