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The following equation shows how the module interprets the input data:
Module data = M x V
in
where:
(S
– S
max
min
M =
(V
– V
)
nfs
nbs
(S
x V
) – (S
min
nfs
B =
(V
nfs
You can choose one of three scaling methods:
binary counts (module sets scalers)
default scaling (module sets scalers)
user scaling (you set scalers)
User scaling is not available when you select discrete transfer mode.
Binary Counts Scaling
Binary counts scaling mode activates when the module powers up. This
mode guarantees the maximum resolution. The module sets the scalers as
shown in the following table:
Scaler
+/-10V
0-10V
S
8191
16383
max
S
-8192
0
-8192
min
Default Scaling
Default scaling mode scales inputs to the input stimulus in either millivolts
or microamps. The module sets the scalers as shown in the following
tables:
With Voltage Input Selected
Scaler
+/-10V
0-10V
S
10,000mV
10,000mV
max
S
-10,000mV
0mV
min
With Current Input Selected
Scaler
+/-10V
0-10V
S
N/A
N/A
max
S
N/A
N/A
min
Chapter 1
Introducing Block I/O
+ B
)
x V
)
max
nbs
– V
)
nbs
+/-5V
0-5V
8191
16383
0
+/-5V
0-5V
5000mV
5000mV
-5000mV
0mV
+/-5V
0-5V
20000uA
20000uA
-20000uA
0uA
1-7
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