Statement List (STL) - DCE FEL ČVUT v Praze

B Programming Examples
B.1 Overview of Programming Examples
Practical Applications
Instructions Used
Each statement list instruction triggers a specific operation. When you combine
these instructions into a program, you can accomplish a wide variety of automation
tasks. This chapter provides the following examples of practical applications of the
statement list instructions:
• Controlling a conveyor belt using bit logic instructions
• Detecting direction of movement on a conveyor belt using bit logic instructions
• Generating a clock pulse using timer instructions
• Keeping track of storage space using counter and comparison instructions
• Solving a problem using integer math instructions
• Setting the length of time for heating an oven
Mnemonic Program Elements Catalog Description
AW Word logic instruction And Word
OW Word logic instruction Or Word
CD, CU Counters Counter Down, Counter Up
S, R Bit logic instruction Set, Reset
NOT Bit logic instruction Negate RLO
FP Bit logic instruction Edge Positive
+I Floating-Point instruction Add Accumulators 1 and 2 as Integer
/I Floating-Point instruction Divide Accumulator 2 by Accumulator 1 as
Integer
*I Floating-Point instruction Multiply Accumulators 1 and 2 as Integers
>=I,