Siemens SIMATIC S5-100U System Manual page 277

S5-100U Analog Value Processing
If you use a four-wire transducer connect it as shown in Figure 11-6.
1 3 5 7 9
2 4 6 8 10
- +
Four-wire transducer
U
Figure 11-6. Connection for Four-Wire Transducers (6ES5 464-8ME11)
Four-wire transducers require their own power supply. Connect the "+" pole of the four-wire
transducer to the corresponding "-" pole of the terminal block (a connection technique that is the
opposite of the two-wire transducer). Connect negative terminals of the four-wire transducer to
terminal two of the terminal block.
Inputs 4, 6, 8, and 10 of the analog input module 464-8ME11 are connected internally via shunt
resistors. Because of the internal shunt resistors, broken wire signaling is not possible.
11-5
EWA 4NEB 812 6120-02b