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Glossary
MN05013001E196
I/O Abbreviation for “Input/Output”.
Impedance Apparent resistance that a component or circuit of several
components has for an alternating current at a particular
frequency.
Inactive metal parts Conductive parts that cannot be touched and which are
insulated from active metal parts. They can, however, carry
voltage in the event of a fault.
Inductive coupling Inductive (magnetic) coupling occurs between two current
carrying conductors. The magnetism produced by the
currents induces an interference voltage. Typical
interference sources are, for example transformers, motors,
mains cables installed parallel and RF signal cables.
Lightning protection Represents all measures for preventing system damage due
to overvoltage caused by lightning strike.
Low impedance connection Connection with low alternating-current resistance.
LSB Abbreviation for “Least Significant Bit”. Bit with the least
significant value.
Master Station or node in a bus system that controls communication
between the other stations of the bus system.
Master-slave mode Operating mode in which a station or node of the system acts
as master that controls communication on the bus.
Mode Operating mode.
Module bus Represents the internal bus of an XI/ON station. Used by the
XI/ON modules for communication with the gateway.
Independent of the fieldbus.
MSB Abbreviation for “Most Significant Bit”. Bit with the most
significant value.
Multimaster mode Operating mode in which all stations or nodes of a system
have equal rights for communicating on the bus.