User guide

P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools Page | 35
normally due to faulty wiring. The condition is communicated to the program using the Name.MinF and
Name.MaxF variable names where Name is the name you gave to the input like Ana_1.
Min: If the input voltage is less than this set point, Then “Name.MinF” is set to true.
Ran
ge: 0 to 4.99v
Note: If the voltage goes out of range, the user must reset Name.MinF manually to false.
Max: If the input voltage is more than this set point, Then “Name.MaxF” is set to true.
Ran
ge: .01 to 5.00v
Note: If the voltage goes out of range, the user must reset Name.MinF manually to false.
Reference Limits
These values are used by the DVC5/10 system to sense an out of bounds voltage condition at the Reference
output pin when it is connected. The Reference limits can detect an open or shorted reference wire. The
normal way this happens is when the system is wired incorrectly. A normal value for this pin is approximately
4.5 volts. Values above 4.75 and below 4.25 volts are probably indicative of an error. The condition is
communicated to the program using the Name.MinRF and Name.MaxRF variable names where Name is the
name you gave to the input like Ana_1.
Min: If the Reference Voltage is less than this set point, “Name.MinRF” is set to true.
Range: 0 to 4.99v
Max: If the Reference Voltage is less than this set point, “Name.MaxRF” is set to true.
Range: 0.01 to 5.00v AND always > Ref Min Limit Volts by .01
Invert Output
When Invert Output is checked, the returned percentage values of the voltage range will be 0 for MAX Volts and
100% for MIN Volts.
Range: Checked/Unchecked
Enable Ramps
Turns on the ability to set the Ramp Times
Range: Checked/Unchecked
Enable Center
When unchecked the percentage value returned to your program via the variable “Name” would be directly
proportional to Max - Min with Min equal to 0 and Max equal to 100%. When checked, the center is 0% and the
min and max volts will be 100% with respect to Invert Output.
Range: Checked/Unchecked
Deadband %
The deadband percentage specifies the range of voltage above and below the center point that is effectively
center. In the deadband voltage range the returned percentage value for this analog input is 0%.
Auto Set Voltage Limits
The Auto Set Voltage Limits will set the Voltage Limits based on the Voltage Calibration Settings. The voltage
limits will be set to one-half of the difference between the Reference and Voltage Calibration values for both the
min and max values.
Gain / Offset Calculator
When analog input voltage values are to be displayed by the Program Load Monitor
this facility will automatically scale the value displayed according to a linear equation of