Wiring
Block diagram and pin assignment for voltage measurement
The example in the figure below shows the pin assignment for a voltage measurement.
①
Analog-to-Digital Converter (ADC)
②
Electrical isolation
③
Backplane bus interface
④
Supply voltage via power supply element
⑤
Equipotential bonding cable (optional)
Figure 3-2
Block diagram and pin assignment for voltage measurement
22
CHx
Channel or 8 x channel status (green/red)
RUN
Status display LED (green)
ERROR
Error display LED (red)
PWR
LED for power supply (green)
Analog Input Module AI 8xU/I HF (6ES7531-7NF00-0AB0)
Manual, 09/2016, A5E36649087-AB