User guide

eWON 500-2001-4001-4002 User Guide - IO Servers Configuration
eWON 500®2001®4001®4002® Version 4_3_0 - User Guide - 10/5/05 - ©ACT'L sa - Page 110
6.10.2.3 Analog Input Value Range (eWON4002/eWON1002)
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.
6.10.2.3.1 Configurable analog input AI1 to AI4
• In 0-10V mode
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 61: Tag’s configuration: reading the tag value in Volt
• In 0-20 mA mode
The shunt resistor for measuring current is a 220 Ohm.
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 62: Tag’s configuration: reading the tag value in mA
AI# Volt
00
4095 10
AI# mA
00
1802 20