Analog modules
9.2 SM 336; AI 6 x 13 Bit
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
197
Wiring scheme B, current measurement 0 to 20 mA with 4-wire transducer for application 2
You can interconnect six process signals with two redundant analog modules. Two sensors
are connected via one channel to the two analog modules for each process signal. 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)"). The wire-break check function reduces the measuring range to 4 to 20 mA.
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