Connection of active-type analog sensors (current) with electrically \ isolated power supply¶
The following figure shows the connection of active-type analog sensors (current) with electrically isolated power supply.
Connection of active-type analog sensors (current) with electrically isolated power supply. 1 analog sensor requires 1 channel.
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.