GE VersaMax - Page 365

11-20 VersaMax® Modules, Power Supplies, and Carriers User's Manual – March 2003 GFK-1504K
11
IC200ALG322
Analog Output Module, 12 Bit Voltage -10 to +10VDC 4 Channels
Scaling
The graphs below show the relationship between the output voltage measured at the field
terminals and the data that is output by the module.
Count vs Output Voltage
-32000 -25600 --19200 12800 -6400 0 6400 12800 19200 25600 32000
12
10
8
6
4
2
0
-2
4
-6
-8
-10
-12
Count
Voltage
5.0150V
5.0200V
16064
16048
16032
16016
5.0100V
5.0250V
16 counts
= 5mV
Voltage can be calculated using the following equation:
Vout = ( (analog counts x 20.5) / 65535 )
The count value must be a multiple of 16. If the module receives a count value that is not a
multiple of 16, it rounds the value down to the closest multiple of 16. For example:
Count Voltage
16032 5.0150V
16040 5.0150V
16048 5.0200V
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