Lenze EMF2141IB - Manual (Page 86)

Appendix
8-10
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8.4 Glossary
Technical term Meaning
Controller General term for servo drives, frequency inverters and DC drives
Baud rate Transmission speed of data in bit/s
Bus terminal Network node between long-distance and peripheral bus
Bus devices Unit which communicates with the host via the bus
code For input and display (access) of parameter values.
Code number/code Clear labelling of a parameter, e.g. C0106. For calculation information see Lenze code addressing in chapter
„Parameter setting“,
Fieldbus For the exchange of data between higher-level controls (hosts) and positioning controls (e. g. controllers).
FTT Free Topology Transceiver.
Handshake Stipulated data-transfer method (here implemented by software).
Host PC or PLC
Master see host/host system
LON Logical Operating Network
Network topology Design and structure of a network: e.g. point-to-point network, line network, ring network)
Parameters Adjustable controller variables and values addressable via codes
Peripheral-bus module Bus participant in the peripheral bus
Peripheral-bus station Consists of bus terminal, peripheral-bus module and long-distance bus controller.
Icon Sign or symbol with an unambiguous message.
Process data, Small amounts of data for fast and cyclic transmission; e.g. setpoints and actual values
Process-data channel
(PCD channel) Communication channel for fast and cyclic transmission of process data
Acknowledgement Acknowledgement of a setting or change (e. g. of parameters))
Slave Bus participant which is only allowed to transmit data after a request by a master. For instance, controllers
are slaves. (See Host/host system)
Application as directed:
Appropriate use of the machine according to the manufacturer’s information or to common use because of its
design and function.
inappropriate
The use of the machine which does not comply with the manufacturer’s declaration.
Cycle time The cycle time of the communication system is the time required for the exchange of all process data
between the host and the field units (e.g. controllers).
8.5 More information sources
No. Titel Published by
1 Engineering Bulletin 170, LonTalk Response Time Measurements Echelon Corporation
2 LonMark
â
Functional Profile: Variable Speed Motor Drive LONMARK Interoperability Association
3 LonWorks â FTT-10A Free Topology Transceiver User’s Guide Echelon Corporation
4 LonMaker Ô for Windows â User’s Guide Echelon Corporation
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