GE VersaMax IC200PWR001 User Manual page 323

10
IC200ALG230
Analog Input Module, 12 Bit Voltage/Current 4 Channels
Count and Input Voltage
Voltage
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
0
-32768
The following equations can be used to calculate counts values:
Bipolar voltage:
Unipolar voltage:
For a change in the reported count value to be seen, input voltage must be
increased by at least 2.5mV. If the module receives an increase less than
2.5mV, the previous count value is still reported. For example:
Input Defaults
The module's analog input (%AI) data can be configured to either hold last state
or to go to a configured value if an error causes the inputs to default.
If the module is auto-configured, the input default is 0.
10-8 VersaMax Modules, Power Supplies and Carriers User's Manual
2.5mV = 8 counts
5.1275V
5.125V
16408
5.1225V
16400
5.12V
16392
16384
Unipolar
Bipolar
8192 16384 24576
-16384 0 +16383
Count
Counts = ( +Voltage In) x (3200)
Counts = ( +Voltage In) x (3200)
Voltage
5.1200V
5.1220V
5.1225V
2.5mV = 8 counts
2.5mV
0V
0
Unipolar
32767
Bipolar
+32767
Count
16384
16384
16392
7.5mV
5.0mV
24
16
8
GFK-1504N