Siemens Simatic M7-400 Bedienungsanleitung PDF herunterladen (Seite 64)

SIMATIC S7-400

Analog modules

SM 431 analog input module

6/64

Siemens ST 70 · 2013

■

Overview

• Analog inputs for the SIMATIC S7-400

• For connection of voltage and current sensors,

thermocouples, 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 voltage

Load voltage L+

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

plying 2-wire transmitters

24 V; Only required for sup-

plying 2-wire transmitters

not necessary 24 V; Only required for sup-

plying 2-wire transmitters

• Reverse polarity protection

Yes Yes Yes

Input current

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

permissible input voltage for voltage

input (destruction limit), max.

20 V; 20 V DC permanent,

75 V DC for max. 1 s

(duty factor 1:20)

18 V; 18 V continuous,

75 V for 1 ms (mark to

space ratio 1:20)

50 V 18 V; 18 V continuous,

75 V for 1 ms (mark to

space ratio 1:20)

permissible input current for current

input (destruction limit), max.

40 mA 40 mA; Permanent 50 mA; 40 mA continuous 40 mA; Permanent

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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