Siemens SIMATIC S7-1500 Manual page 15

Block diagram and terminal assignment for the voltage output
The following figure shows an example of the wiring options:
● 2-wire connection, without compensation for line resistances.
● 4-wire connection, with compensation for line resistances.
①
2-wire connection (jumper at the front connector)
②
4-wire connection
③
Digital Analog Converter (DAC)
④
Electrical isolation
⑤
Backplane bus interface
⑥
Power via supply module
Image 3-2 Block diagram and terminal assignment for the voltage output
Analog Output Module AQ 4xU/I HF (6ES7532-5ND00-0AB0)
Manual, 03/2016, A5E36633205-AA
CHx Channel or 4 x channel status (green/red)
RUN Status display LED (green)
ERROR Error display LED (red)
PWR LED for power supply (green)
Wiring
15