Interface Submodules
13-38
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Isolated Measured Value Sensors
Potential differences can occur between the individual measured value sensors in
the case of isolated measured value sensors. These potential differences can
occur as the result of interference or the physical distribution of the measured value
sensors.
Note
Ensure that the V
CM
(common mode voltage) does not exceed the permissible
value. Violation of the permissible value can result in wrong measured values.
Figure 13-13 shows the connection of isolated measured value sensors.
+
-
V
E0
Isolated measured
value sensors
Ground bus
MV
0+
M
0-
+
-
V
E1
MV
1+
M
1-
+
-
V
CM0
+
-
V
CM1
M
SENSOR
Figure 13-13 Connection of Isolated Measured Value Sensors
Содержание Simatic M7-400
Страница 10: ...Preface x S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 122: ...Power Supply Modules 3 42 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 362: ...Analog Modules 5 146 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 384: ...Interface Modules 6 22 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 428: ...RS 485 Repeater 10 8 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 496: ...M7 400 Expansions 12 26 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 562: ...Interface Submodules 13 66 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 574: ...Parameter Sets for Signal Modules A 12 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 594: ...Diagnostic Data of the Signal Modules B 20 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
Страница 598: ...Spare Parts and Accessories C 4 S7 400 M7 400 Programmable Controllers Module Specifications A5E00069467 07 ...
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