eWON General Reference Guide - eWON wiki

5.10.2.3 Analog Input Value Range (eWON4002)
General Reference Guide IO Servers Configuration
The Analog Inputs (AI1 to AI6) come from a 12 bits ADC. Then, the values read on a AI# tag go from 0 to 4095.
5.10.2.3.1 Configurable analog input AI1 to AI4
• In 0-10V mode
AI# Volt
0 0
4095 10
If you need to read the Tag value converted in Volt, you can set a factor of 0.0024420 = 10/4095 with an offset of 0.
Figure 102: Tag’s configuration: reading the tag value in Volt
• In 0-20 mA mode
The shunt resistor for measuring current is a 220 Ohm.
AI# mA
0 0
1802 20
If you need to read the Tag value converted in mA, you can set a factor of 0.011099 = 20/1802 with an offset of 0.
Figure 103: Tag’s configuration: reading the tag value in mA
RG-001-0-EN ver 1.14 eWON® - 02/05/2012 - ©eWON sa Page 131