Glossary
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 |
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. |
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. |
196 | For more information visit: www.EatonElectrical.com | MN05013001E |
