The equation editor is used to customise the functionality of the USC701. Math functions, branching commands and control of when the equation is run create a powerful and versatile tool.
Typical applications include:

• Mathematical manipulation of a single input signal.
• Mathematical manipulation based on the values read from multiple inputs.
• Conditional processing of signals based on the state of other inputs.
• Filtering of input signals over long periods by providing a moving average of input signal while using the fixed equation update time option.
• PID control of a process variable.
• Pulse width modulation of the relays.
• USC Config 106 introduces the use of integer variables as well an the standard floating point variables.

Following is a series of exercises designed to familiarise with the user while building some typical working applications.

• The "Create a Simple Adder using the New Module Wizard" is a simple exercise that should take about three minutes to run and impart entry-level knowledge. A later exercise "Review the Simple Adder Wizard Equation" has a full listing to explain the reverse polish program list and how to use the step tool to simulate the equation function.
• The "Create a Simple Divider using the New Module Wizard" is similar to the previous example except that it demonstrates some error conditions and how to correct or ignore them. The "Evaluate Equation Outputs" screen displays the error condition.
• The "Adder with Peak Output and Reset" demonstrates the branching functions and uses a control input, branch labels and a constant