2-7
Section 2 Programming Languages
<Numbers of function steps with EN/ENO enabled>
The numbers of function steps with EN/ENO enabled are shown below.
1) When variables are associated with both of EN/ENO terminals, the number of steps increases by three.
ADD
START
IN1
IN2
EN
ENO
FLAG
OUT
ADD
START
IN1
IN2
EN
ENO
OUT
ADD
IN1
IN2
EN
ENO
FLAG
OUT
ADD
IN1
IN2
EN
ENO
OUT
2) When a variable is associated only with the EN terminal, the number of steps increases by two.
3) When a variable is associated only with the ENO terminal, the number of steps increases by two.
4) When a variable is associated with neither the EN nor ENO terminal, the number of steps is the same as with EN/ENO
disabled.
<IL language when any function with EN/ENO enabled is uploaded>
When a function with EN/ENO enabled is uploaded from the CPU, LDE and STE IL operators are added. Conversion of IL to
LD/FBD returns the function to its original format.
ADD
START
IN1
IN2
EN
Upload
ENO
FLAG
OUT
ADD
START
IN1
IN2
EN
ENO
FLAG
OUT
LDE START
LD INPUT1
ADD INPUT2
ST OUT
STE FLAG
IL-LD/FBD
conversion