Analog modules
6.7 Analog input module SM 331; AI 8 x 12 bit;(6ES7331-7KF02-0AB0)
Wiring: Thermocouples with external compensation
Insert a bridge between Comp+ and M
when using the internal compensation.
ANA
Figure 6-16
Block diagram and wiring diagram
S7-300 Module data
357
Manual, 06/2017, A5E00105505-AJ