Principles of analog value processing
4.4 Wiring and connecting current transducers
S7-300 Module data
246 Manual, 06/2017, A5E00105505-AJ
Wiring and connecting 2-wire transducers with power supply from L+
Configure the 2-wire as a 4-wire transducer in
STEP 7
if it is connected to supply voltage L+.
Figure 4-7 Wiring and connecting a 2-wire transducer with supply from L + to an electrically isolated
AI
Wiring and connecting 4-wire transducers
4-wire transducers are connected to a separately power supply.
Figure 4-8 Wiring and connecting 4-wire transducers to electrically isolated AI
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