Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual page 272

In the office area and in automation technology, devices support a wide range of
manufacturers on the Ethernet SNMP.
SNMP-based applications can be operated parallel to applications with PROFINET on the same
network.
The scope of the supported functions varies depending on the device type. A switch, for
example, has more functions than a CP 1616.
Switch
PROFIBUS is based on a line topology. Communication nodes are interconnected by means of
a passive line, namely the bus.
By contrast, the Industrial Ethernet consists of point-to-point connections: Each
communication node is interconnected directly with one other communication node.
If a communication node is to be interconnected with several other communication nodes,
this communication node is connected to the port of an active network component, i.e., the
switch. Other communications nodes (including switches) can then be connected to the
other ports of the switch. The connection between a communication node and the switch
remains a point-to-point connection.
The task of a switch is thus to regenerate and distribute received signals. The switch "learns"
the Ethernet address(es) of a connected PROFINET device or of other switches and passes
only the signals intended for the connected PROFINET device or switch.
A switch has a certain number of ports. Connect a maximum of one PROFINET device or one
additional switch to each port.
TIA Portal
Totally Integrated Automation Portal
The TIA Portal is the key to the full performance capability of Totally Integrated Automation.
The software optimizes all plant, machine and process sequences.
Total current
Total current of all output channels of a digital output module.
ET 200eco PN
Operating Instructions, 06/2022, A5E01250250-AN
Glossary
273