Siemens SIMATIC PCS 7 Configuration page 26

2 Configuring and wiring
2.3 Redundant connections of the distributed I/O
Connection and schematic circuit diagram of the SM 331; AI 8 x 16 bit (voltage
measurement)
The following two pictures each show the schematic circuit diagram of the analog
input module SM331 AI 8x16 bit (6ES7 331-7NF00-0AB0) with channel-granular
functionality for voltage and current measurement.
Figure 2–10
Table 2–3
Digit
1
2
3
4
5
Configuration of Redundant I/O Modules
Entry-ID: 28430682, V2.0,
Voltage measurement
Backplane bus interface
Electrical isolation
Analog-to-Digital Converter (ADC)
Equipotential bonding
03/2015
Description
26