Analog modules
9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART
Fail-safe signal modules
242 Installation and Operating Manual, 01/2010, A5E00085586-10
Current measurement 0/4 to 20 mA with 2-wire and 4-wire transducer for application 3
Six process signals can be connected to a module in this interconnection variant. Sensor
supply Vsn is provided by the module for 6 channels. The sensors can also be connected to
an external sensor supply (see Figure
External sensor supply, 2-wire transducer for
SM 336; F-AI 6 x 0/4 ... 20 mA HART
in Chapter " Properties, front view, wiring diagram and
block diagram (Page 224) ").
You can use interconnection
schemes A to D for this application.
60
$,[P$+$57
/ /
00
9V
0
0
9V
0
0
9V
0
0
9V
0
0
9V
0
0
9V
0
0
3
&+
&+
&+
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ZLUHWUDQVGXFHU
Figure 9-30 1oo1 evaluation
WARNING
To achieve SIL3/Cat.3/PLe using this wiring, you must use a suitably qualified sensor.
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