+   ADD

Operator - Performs an addition of all inputs.

Inputs

IN1 : ANY   First input
IN2 : ANY   Second input

Outputs

Q : ANY       Result: IN1 + IN2

Remarks

All inputs and the output must have the same type. In FBD language, the block may have up to 16 inputs. 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 ADD instruction performs an addition between the current result and the operand. The current result and the operand must have the same type.

The addition can be used with strings. The result is the concatenation of the input strings.

ST Language

Q := IN1 + IN2;
MyString := 'He' + 'll ' + 'o';   (* MyString is equal to 'Hello' *)

FBD Language

(* the block may have up to 16 inputs *)

LD Language

(* The addition is executed only if EN is TRUE *)
(* ENO is equal to EN *)

IL Language:

Op1: LD  IN1
     ADD IN2
     ST  Q    (* Q is equal to: IN1 + IN2 *)
Op2: LD  IN1
     ADD IN2
     ADD IN3
     ST  Q    (* Q is equal to: IN1 + IN2 + IN3 *)

See also

-   *   /