Analog Inputs Port Jp4 - Denkovi DAEnetIP4 User Manual

11.3.

Analog Inputs Port JP4

 There is pull-down resistor of 68K connected to GND inside DAEnetIP4 for
every JP4 input pin;
 Maximum input voltage on any JP4 input pin should not be more than 2.048V
DC;
The Analog Inputs port is not protected and it is connected directly to the
CPU! Over-voltage or inverse polarity voltage will damage the CPU.
It is recommended to use always resistor in sequence to the Analog Input.
Bellow is shown example how to extend the JP4 Analog Inputs port to measure
voltage 0-10V DC. The 270K resistor also acts as protection.
Figure 49. How to extend DAEnetIP4 Analog Inputs port JP4 to 0-10V
Figure 48. DAEnetIP4 Analog Inputs port JP4
DAEnetIP4 User Manual
08 June 2018
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