Siemens SIMATIC S7-400 Reference Manual page 294

Automation system module data

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Analog modules

5.24 Analog input module SM 431; AI 8 x RTD x 16 Bit (6ES7431-7KF10-0AB0)

An external protective network is required for the signal lines in accordance with IEC 61000-4-5

(12 V Blitzductor, model CT919-506, connected in series with all inputs as recommended by

the manufacturer).

S7-400 Automation System Module Data

Reference Manual, Ausgabe 11/2016, A5E00850736-08

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