Operator - Performs a subtraction of inputs.
IN1 : ANY_NUM / TIME
IN2 : ANY_NUM / TIME Second input
Q : ANY_NUM / TIME Result: IN1 - IN2
All inputs and the output must have the same type. In LD language, the input rung (EN) enables the operation, and the output rung keeps the same value as the input rung. In IL language, the SUB instruction performs a subtraction between the current result and the operand. The current result and the operand must have the same type.
Q := IN1 - IN2;
(* The subtraction is executed only if EN is
(* ENO is equal to EN *)
Op1: LD IN1
ST Q (* Q is equal to: IN1 - IN2 *)
Op2: LD IN1
ST Q (* Q is equal to: IN1 - IN2 - IN3 *)
+ * /