turck BL67 - BL67-4 AI-V;I, Voltage-;Current Measurement

Analog input modules
D300529 0115 - BL67 I/O modules6-42
6.6 BL67-4AI-V/I, voltage-/current measurement
Figure 6-19:
BL67-4AI-V/I
Figure 6-20:
Block diagram
AI+
AI-
PE
GND
1
2
3
4
5
AI+
AI-
PE
GND
1
2
3
4
5
M12
PE
GND
V
0
V
sens
V
sens
V
sens
multi-
plexer
signal
conditioning
AD-
converter
BL67-
system bus
communi-
cation
bus
power
bus
module bus
interface
+
-
+
-
=
+
-
=
+
-
=
.
.
.
.
.
+
-
+
-