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Glossary
A
Active Stations
B
Bit Time
Broadcast
C
Consistent Data
CP 5430/31
D
Data-Oriented
Connection
Communications Processor CP 541
EWA 4NEB 812 6188-02
When authorized to send, active stations may send data to other stations and
request data from other stations.
The bit time is the time taken to transmit one bit. It is the reciprocal of the
transmission rate: T
= 1/transmission rate.
bit
A broadcast is a message sent to all stations connected to a bus system.
Data, which are related with regard to contents and must not be separated, are
known as consistent data.
The data must not be corrupted by reading out at different times.
The CP 5430/31 is an active station which supports the following commu-
nication modes: PLC-PLC, FDL, CP, GP and DP.
With the data-oriented connection, individual messages are transmitted cycli-
cally. The messages may contain identical information over a long time.
Transmission takes place in background without initiation via the user pro-
gram.
Glossary-1
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