Intelligent Technologies QCPort System Install Manual
November 2005
MN05001002E
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Page
27
1. Find the voltages for each node using the equation for Long Run.
SUM {[(L n x (0.0045)) + (N t x (0.005))] x I n } <= 4.65V
Device 1
[(
18
x (0.021)) +
(1
x (0.005))] x
1.0
=
0.383V
Device 2
[(
36
x (0.021))+
(2
x (0.005))] x
0.5
=
0.383V
Device 3
[(
43
x (0.021)) +
(3
x (0.005))] x
0.4
=
0.367V
Device 4
[(
95
x (0.021)) +
(4
x (0.005))] x
0.3
=
0.604V
2. Add each Devices voltage together to find the total voltage.
0.383V + 0.383V + 0.367V + 0.604V =
1.737V
Results
Since the total voltage does not exceed 4.65V, the system will operate properly.
