Siemens SIMATIC ET 200C Manual page 311

Glossary
A
Active nodes
Can transmit data to other nodes or request data from other nodes when they
have a permission to send (= master station).
An active node is, for example, the IM 308-B master interface module.
B
Baud rate
Data transmission speed: specifies the number of bits transmitted per second
(baud rate = bit rate).
Binary file
You must created a binary file if you also wish to save the data you exported
to the memory card on the PG/PC. Like the memory card, the binary file con-
tains all of the bus, slave and master parameters created with COM ET 200.
The binary file is formatted in such a way that it can be read by different ver-
sions of COM ET 200.
Bus Common transmission path for all nodes connected; with defined termination
points.
Bus connection All ET 200C modules have a bus connection (12-pin socket). This bus con-
nection has several functions:
Busnode Device that can send, receive or amplify data via the bus, e.g. master station,
slave station, repeater, active star hub, etc.
In the ET 200C, only the digital modules are nodes. All other devices cannot
send or receive data. They also have no station number (e.g. PS connector,
programmer connector, etc.).
Bussegment
ET 200C Distributed I/O Station
EWA 4NEB 812 6119-02b
Connection to the SINEC L2-DP field bus
Connection to the power supply
Connection to the field bus and power supply at a single socket
Segment
Glossary-1