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.