Local bus
(Original Document)
About us
Introduction
The local bus LB is a local branch of a remote bus in which a monitoring unit is installed. The local bus makes possible the construction of an adjustable and profitable remote sub-station.
The bus is connected to the remote bus by a station header.
Characteristics
The following table shows the characteristics of the INTERBUS local bus.
Physical characteristics
Maximum length of cable between
the station header and the first module
1.5 m
two modules
1.5 m
the station header and the last module
10 m
Electrical characteristics
Device consumption
from 20 to 250 mA
Maximum power consumption
800 mA
Transmission characteristics
Transmission method
TTL
Possible transmission supports
specific cable
Transmission rate
500 Kbits/s
Capacity
Number of input/output modules
Maximum of 8 different modules