User manual

2-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
2.1 Structure of ASi
You can install the ASi as branched with a single 2-wire cable. You connect
the DP/ASi link, the different ASi slaves and the ASi power supply unit to
any point on the ASi cable.
Fig. 2-1 shows an example installation of an ASi.
DP/ASi link
ASi power
supply unit
ASi slave
ASi distribu-
tion unit
Ext. power
supply unit
ASi slave
ASi distribu-
tion unit
ASi slave ASi slave
ASi slave
ASi slave
To PROFIBUS-DP
a
b
ASi slave ASi slave
ASi slave
c
a
Connection of DP/ASi link by means
of ASi cable
b
Remote ASi slave with external power
supply unit
c
ASi with star termination
d
You can also connect the ASi power
supply unit directly to an ASi slave.
d
Figure 2-1 Example installation of an ASi
Structure
Example installa-
tion
ASi Basics