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Analog modules
5.10 Connecting voltage sensors
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
223
5.10 Connecting voltage sensors
Connecting voltage sensors
Note
The cables required to connect the analog input module and the sensors are not drawn in
the figures shown below.
In other words, you must continue to read and follow the instructions in the section
"Connecting sensors to analog inputs", which contains general information on connecting
sensors.
+
-
U
+
-
U
M+
M-
M+
M
ANA*
M-
M +: Measuring line (positive)
M -: Measuring line (negative)
M
ANA
: Reference potential of the analog measuring circuit
(1) Connection required for modules with M
ana
Figure 5-7 Connecting voltage sensors to an AI
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