Siemens S7-400PLC User Manual download pdf (Page 103)

SIMATIC S7-400

Analog modules

SM 431 analog input module

6/103

Siemens ST 70 · 2011

■

Overview

• Analog inputs for the SIMATIC S7-400

• For connection of voltage and current sensors, thermo-

couples, resistors and resistance thermometers

• Resolution from 13 to 16 bit

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Technical specifications

6ES7 431-0HH00-0AB0 6ES7 431-1KF20-0AB0 6ES7 431-1KF00-0AB0 6ES7 431-1KF10-0AB0

Supply voltages

Load voltage L+

• Rated value (DC) 24 V; Only required for

supplying 2-wire trans-

mitters

24 V; Only required for

supplying 2-wire trans-

mitters

not necessary 24 V; Only required for

supplying 2-wire trans-

mitters

• Reverse polarity protection Yes Yes Yes

Current consumption

from load voltage L+ (without

load), max.

400 mA; for 16 connected,

fully controlled 2-wire trans-

mitters

200 mA; for 8 connected,

fully controlled 2-wire trans-

mitters

200 mA

from backplane bus 5 V DC,

max.

100 mA 1 000 mA 350 mA 600 mA

Power losses

Power loss, typ. 2W 4.9 W 1.8 W 3.5 W

Analog inputs

Number of analog inputs 16 8 8 8

Number of analog inputs for

voltage/current measurement

16 8 8 8

Number of analog inputs for

resistance measurement

4 4 4

Cable length, shielded, max. 200 m 200 m 200 m 200 m; 50 m with thermo-

couples and input ranges

<= 80 mV

Input ranges (rated values),

voltages

• 1 to 5 V Yes Yes Yes Yes

• -1 V to +1 V Yes Yes Yes Yes

• -10 V to +10 V Yes Yes Yes Yes

• -2.5 V to +2.5 V

Yes

• -250 mV to +250 mV

Yes

• -5 V to +5 V

Yes

• -500 mV to +500 mV

Yes

• -80 mV to +80 mV

Yes

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SIMATIC S7-400 1
Ordering data Connect. Cable 169

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Siemens S7-400PLC User Manual Page 103

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