Analog modules
5.19 Analog input module SM 431; AI 8 x 13 Bit (6ES7431-1KF00-0AB0)
The module can get damaged.
The shunt of an input channel can be destroyed if you inadvertently connect a voltage sensor
to the M- /MI+ terminals of a channel.
Make sure that the front connector is wired in accordance with the following connection
diagram.
230
WARNING
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08