10-28 VersaMax® Modules, Power Supplies, and Carriers User's Manual – March 2003 GFK-1504K
10
IC200ALG261
Analog Input Module, 15 Bit Differential Voltage 8 Channels
Scaling
The graphs below show the relationship between the input voltage measured at the field
terminals and the data that is output by the module.
Volta
e
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-32768 -16384 0 +16383 +32767
Count
0mV
0.3125mV
2
1
0
-1
-0.3125mV
0.625mV
0.3125mV = 1 counts
The following equations can be used to calculate count values:
Counts = ( Input Voltage ) x (32000 / 10V
)
Operating Range
The operating range for the IC200ALG261 module is shown in the following graph.
Common Mode Volta
e
30
20
10
0
-10
-20
-30
-15 -10 -5 0 5 10 15
Input Voltage
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