GE VersaMax IC200PWR001 User Manual page 348

Scaling
The following figure illustrates the relationship between the input current
measured at the field terminals and the data that is output by the module.
Note 1) 4-20mA Range
4.000mA
0
The following equations can be used to calculate count values:
4-20mA Range:
0-20mA Range:
Note 1: In 4-20mA mode, signal inputs below 4.077mA are converted to zero counts.
Note 2: In 4-20mA mode, signal inputs at 20.000mA or above 20.383mA are
converted to 32000 counts.
Operating Range
GFK-1504N Chapter 10 Analog Input Modules
Analog Input Module, 15 Bit Differential Current 8 Channels
4-20mA Range
0.5µA = 1counts
12.1925mA
4.077mA
154
12.192mA
16384
4.0765mA
0
24
mA
20
16
12
8
4
0
0 8192
Counts = (Current in mA - 4mA) x (32000 / 16mA
Counts = (Current in mA ) x (32000 / 20mA
Note 2) 4-20mA Range
12.1935mA
12.193mA
16386
16385
20.000mA
32000
16384 24576 32767
Count
10
IC200ALG262
20.3835mA
32767
20.384mA
32000
0-20mA Range
0.625µA = 1counts
10.241875mA
10.24125mA
16386
10.240625mA
16385
10.240mA
16384
)
)
10-33