User`s manual

General Information about INTERBUS-Configuration
15
INTERBUS Configuration with TSX Momentum
General
information
The INTERBUS consists of remote bus and peripheral bus segments.
All bus segments transfer the same signals, but with differing electrical signal levels.
Remote bus The remote bus is used for the transfer of data over long distances, up to 400 m
between 2 nodes when using copper cable and up to 300 m between 2 nodes when
using HCS fiber optic cable. The remote bus is generated by the INTERBUS master.
No voltages are carried by the remote bus cable. When using copper cable, the
signal levels of the remote bus are implemented according to RS 485.
The bus operates full duplex with a transfer rate of 500 Kbaud.
Typical remote bus devices are, for example, Momentum I/O modules or bus
terminals.
The sections between two remote bus nodes are called remote bus segments.
Remote bus
branch
The remote bus terminal is created by a branch interface module (e.g.
170 BNO 671 00, 170 BNO 681 00). The branch interface module itself is a remote
bus node on the INTERBUS network. The Momentum I/O modules on the remote
bus branch are the same as those on the remote bus.
Note: TSX Momentum I/O modules can only be used on the remote bus and
remote bus branches.