Siemens Simatic S7-400 - Manual (Page 221)

Analog Modules
5-5
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Table 5-2 Analog Output Modules: Characteristics at a Glance
Module SM 432; AO 8 13 Bit
(-1HF00-)
Characteristics
Max. permissible common mode voltage Between the channels and the channels
against M
ANA
3 VDC
Special Features –