Connection of active-type analog sensors (current) with electrically \ isolated power supply

Connection example

Figure:

The following measuring ranges can be configured AI531 - Analog Input Module AI531 - Analog Input Module:

Current	-20 … 20 mA	1 channel used
Current	0 … 20 mA	1 channel used
Current	4 … 20 mA	1 channel used

The function of the LEDs is described under Diagnosis and displays / displays AI531 - Analog Input Module.

Unused input channels can be left open, because they are of low resistance.