Analog modules
9.2 SM 336; AI 6 x 13 Bit
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
213
Wiring scheme B, current measurement 4 to 20 mA with 4-wire transducer for application 6
You can interconnect six process signals with two redundant analog modules. Four
redundant sensors are required for each process signal. Two sensors are connected via two
channels to two
opposite inputs
of the analog module for each module (1oo2 evaluation).
Sensor supply V
S
is provided by the analog module for 6 channels. The sensors can also be
connected to an external sensor supply (see figure
External sensor supply, 4-wire transducer
for SM 336; AI 6 x 13Bit
in chapter "Properties, front view, wiring diagram and block diagram
(Page 184)").
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