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
"Function block diagram"
A function block diagram describes a function between input variables and output variables. A function is described as a set of elementary blocks language, the block can have up to 16 inputs. In FFLD language, the input rung (EN) enables the operation, and the output rung keeps the same value as the input rung. In IL"Instruction list"
This is a low-level language and resembles assembly 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 can have up to 16 inputs *)
FFLD Language
(* The addition is executed only if EN is TRUE *)
(* ENO is equal to EN *)
IL Language
Op1: FFLD IN1
ADD IN2
ST Q (* Q is equal to: IN1 + IN2 *)
Op2: FFLD IN1
ADD IN2
ADD IN3
ST Q (* Q is equal to: IN1 + IN2 + IN3 *)
See also
