Hi all. I am trying to develop a PID loop in a Siemens S7-216 PLC using an unipolar analog input for the setpoint and another for the process variable. In order to do this, the "Help" instructions tell me I need to convert each input from a 16-bit Word to a Real value. The problem is I can't seem to get this step accomplished. The example in the "Help" file doesn't seem to work (primarily because it is written for a higher-powered processor with additional functions). Does anybody know how to do this?
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