Siemens 6MF28112AA00 - Block Diagram and External Circuitry

Standard I/O Modules
48 Unrestricted SICAM A8000 Series, SICAM I/O Modules
DC8-012-2.06, Edition 09.2019
2.6.5 Block Diagram and External Circuitry
The following circuitry variants are examples, and do not relate exclusively to the depicted
inputs/outputs.
Note
The
connectors X1 and X2 may be detached or attached in de-energized state only!
X
2
IREF2+
2
3
4
IN V2+
IN V2- IREF2-
5
6
7
8
9
10
IREF3+ IN V3+ IN V3- IREF3-
AI-8310
U
X
1
Controller
BUS
I
REF0+
2
3
4
IN VO+
IN VO- IREF0-
Multiplexer
5
6
7
8
9
10
IREF1+ IN V1+ IN V1- IREF1-
Multiplexer
U
RY
reinforced
insulation
n
.c.
n.c.
n.c.
n.c.
Connection in
4-wire technique
Connection in
3-wire technique
Connection in
2-wire technique
Connection in
4-wire technique
reinforced
insulation