Eaton Electrical D77A - Manual (Page 20)

Intelligent Technologies ( IT.) D77A I/O Module Products
12 For more information visit: www.EatonElectrical.com MN05002001E
Figure 6: Analog Input Curves
a) 0-5V Range Setting
b) 1-5V Range Setting
c) 0-10V Range Setting
d) 0-20mA Range Setting
e) 4-20mA Range Setting
14 Bit Resolution Equations
Vdc = Voltage input value
mA = Current input value
N = Decimal value
0-5 Vdc, 1-5 Vdc
• Vdc = (1/6241.2) x N
0-10 Vdc
• Vdc = (1/3120.6) x N
4-20 mA, 0-20 mA
• mA = (1/1560.2) x N
5.25V 5V 0V
0
32766
31206
21mA 20mA 0mA
0
5.25V 5V 0V
0
32766
31206 32766
31206
10.5V 10V 0V
0
1V
0.5V
6242
3120
21mA 20mA 0mA
0
32766
31206 32766
31206
4mA
6242
4992
(A)
(D)
(E)
(B) (C)
D77A-031
3.2mA