Siemens SIMATIC PCS 7 Configuration page 28

2 Configuring and wiring
2.3 Redundant connections of the distributed I/O
Table 2–4
Digit
1
2
3
4
5
6
Connection and schematic circuit diagram of the SM 331; AI 8 x 0/4...20 mA HART
The following picture shows the schematic circuit diagram of the analog HART
input module SM331 AI 8x0/4...20 mA (6ES7 331-7TF01-0AB0) with channel-
granular functionality.
Figure 2–12
Configuration of Redundant I/O Modules
Entry-ID: 28430682, V2.0,
Backplane bus interface
Electrical isolation
Analog-to-Digital Converter (ADC)
CH 0 for 4-wire transducer
CH 7 for 2-wire transducer (with external supply)
Equipotential bonding
03/2015
Description
28