Operands can be any of the following:
Constants - an unchangeable value.
Inputs - references to Logic Solver Calc/Logic (LSCALC) block inputs (IN1..IN16, float with status).
Outputs - references to Logic Solver Calc/Logic (LSCALC) block outputs (OUT1..OUT16, float with status).
Module – references to module parameters that reside in the same module as the given expression.
Temporary variables.