Analog modules
6.8 Analog input module SM 331; AI 2 x 12 Bit; (6ES7331-7KB02-0AB0)
S7-300 Module data
368 Manual, 06/2017, A5E00105505-AJ
Hardware interrupts
Hardware interrupts for channel groups can be programmed in
STEP 7
. However, set a
hardware interrupt only for the first channel of a channel group, that is channel 0.
Terminal assignment
The diagrams below show various wiring options The input impedance depends on
programmed measuring range.
Wiring: Voltage measurement
Figure 6-17 Wiring and block diagram
Measuring range module settings
Measuring range module setting
± 80 mV
± 250 mV
± 500 mV
A
± 2.5 V
± 5 V
1 V to 5 V
B
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