User`s manual

Introduction to Local Logic Programming

GFK-1742A Chapter 10 Introduction to Local Logic Programming 10-27

The Local Logic editor is a free-form text editor that allows users to enter programs in the style that

they prefer. The example is of a very simple Local Logic program that does not represent a fully

functional application because it is intended for instructional purposes only. The example program

is a simple timer application that relies on the digital servos position loop sample period (2 mSec)

as a time base. See Chapter 1 for position loop sample periods for other configurations.

IF First_Local_Logic_Sweep THEN (* First execution sweep *)

P001 := 0; (* Initialize P001 to 0 *)

P003 := 0; (* Initialize P003 to 0 *)

P004 := 0; (* Initialize P004 to 0 *)

END_IF;

P001:=P001+2; (* Time in Milliseconds *)

P100:= P001 MOD 1000; (* Check to see if 1 Sec (1000 mSec) Passed) *)

IF P100 = 0 THEN (* Remainder of MOD Operation=0 1 Sec Passed *)

P003:=P003+1; (* Time in Seconds *)

CTL01 := 1;

IF P003 = 60 THEN (* If Seconds = 60 then start over at 0 *)

P003:=0;

END_IF;

IF P100 <> 0 THEN

CTL01 :=0; (* CTL01=0 When not incrementing sec counter *)

END_IF;

P101:=P001 MOD 60000; (* Check to see if 1 Min (60000mSec) Passed *)

IF P101 = 0 THEN (* Remainder of MOD Operation=0 1 Min Passed *)

P004:=P004+1; (* Time in Minutes *)

IF P004 = 60 THEN (* If Minutes = 60 then start over at 0 *)

P004:=0;

END_IF;

Once you type the above program into the text editor, the editor screen will look similar to Figure

10-28.