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Glossary
ET 200M
258
Operating Instructions, 12/2008, EWA-4NEB780600602-08
Industrial Ethernet
Industrial Ethernet (previously SINEC H1) is a technology that allows data to be transferred
fail-safe in an industrial environment.
Standard Ethernet components can be used since the PROFINET is an open system.
However, we recommend setting up PROFINET as Industrial Ethernet.
IP 20
Degree of protection in accordance with DIN 40050: protection to prevent finger contact and
intrusion of particles larger than 12mm Ø.
Isochronous
Clock synchronism causes all affected cycles (e.g. user program cycle, DP bus cycle, signal
processing cycle in the DP slaves) to run synchronously and for the same length of time.
Thus, process response times will also be of the same length and can be reproduced.
Isochronous real-time communication
Synchronized transmission method for the cyclic exchange of IRT data between PROFINET
devices.
A reserved bandwidth is available within the send cycle for IRT IO data. The reserved
bandwidth guarantees that IRT data can also be transferred at reserved, synchronized
intervals while other, higher network loads are active (for example TCP/IP communication, or
additional real-time communication).
Isolated
For isolated I/O modules the reference potentials of the control and load circuits are
electrically isolated, e.g. by using an optocoupler, relay contact or transmitter. Input and
output circuits can be rooted.
LAN
Local Area Network; interconnects multiple computers within a company. The geographical
topology of a LAN is limited to the local premises and is only available to the operating
company or institution.
LLDP
LLDP (Link Layer Discovery Protocol) is a protocol that is used to detect the closest
neighbors. It enables a device to send information about itself and to save information
received from neighboring devices in the LLDP MIB. This information can be looked up via
the SNMP. This information allows a network management system to determine the network
topology.
Load power supply
Power supply for signal and function modules, including any attached process I/O modules.
Summary of Contents for IM 153-4 PN
Page 186: ...Functions 8 9 SNMP ET 200M 184 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Page 254: ...Order Numbers for the ET 200M ET 200M 252 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Page 268: ...Glossary ET 200M 266 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...