D301271 1013 - FGEN - multi protocol 15-1
15 Glossary
Acknowledge
Acknowledgment of a signal received.
Active metal component
Conductor or conducting component that is electrically live during operation.
Address
Identification number of, e.g. a memory position, a system or a module within a network.
Addressing
Allocation or setting of an address, e. g. for a module in a network.
Analog
Infinitely variable value, e. g. voltage. The value of an analog signal can take on any value, within certain limits.
Automation device
A device connected to a technical process with inputs and outputs for control. Programmable Logic Controllers
(PLC) are a special group of automation devices.
Baud
Baud is a measure for the transmission speed of data. 1 Baud corresponds to the transmission of one bit per
second (Bit/s).
Baud rate
Unit of measurement for measuring data transmission speeds in Bit/s.
Bidirectional
Working in both directions.
BootP
Short for Bootstrap-protocol. The Bootstrap-protocol is used to set the network address of network nodes by means of a boot
server .
Bus
Bus system for data exchange, e. g. between CPU, memory and I/O levels. A bus can consist of several parallel
cables for data transmission, addressing, control and power supply.
Bus cycle time
Time required for a master to serve all slaves or stations in a bus system, i. e. reading inputs and writing outputs.
Bus line
Smallest unit connected to a bus, consisting of a PLC, a coupling element for modules on the bus and a module.
Bus system
All units which communicate with one another via a bus.
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