Murr Elektronik Cube67 Series - Terminal Resistance of the Internal System Connection

Cube67 System Manual
23 V 2.5
3.2.6 Terminal Resistance of the Internal System Connection
A terminal resistance must be installed on each branch of the internal system
connection.
Compact modules have an integrated terminal resistance. If the last I/O module in a branch is a compact
module, it is not necessary to install a supplementary terminal resistance. If the last module is an
expander module, the extension interface of the internal system connection must
always
Fig. 3-4
be fitted with a
terminal resistance. Unused connections at bus modes and modules must be provided with dummy
plugs. shows where the terminal resistances must be installed by means of a configuration
example.
Fig. 3-4 : Terminating the internal system connection (example)
 Bus node
 Expander module
 Terminal resistance
 Compact module
 Unused bus branch without terminal resistance
 Fit dummy plugs to unused connections on bus modes and
modules.