Quick Start Owner's manual
Table Of Contents
- 1756-QS001E-EN-P, Logix5000 Controllers Quick Start
- Summary of Changes
- Table of Contents
- 1 - Program and Test a Simple Project
- What You Need
- Before You Begin
- Follow These Steps
- Create a Project for the Controller
- Add Your I/O Modules
- Look at Your I/O Data
- Ladder Logic
- Enter a Function Block Diagram
- Assign Alias Tags for Your Devices
- Establish a Serial Connection to the Controller
- Download a Project to the Controller
- Select the Operating Mode of the Controller
- 2 - Organize a Project
- 3 - Program Add-On Instructions
- What You Need
- Follow These Steps
- Insert an Add-On Instruction
- Copy an Add-On Instruction Definition
- Import an Add-On Instruction Definition
- Access a Parameter That Is Not Visible
- Monitor or Change the Value of a Parameter of an Add-On Instruction
- View the Logic of an Add-On Instruction
- Edit and Monitor an Add-On Instruction
- Update an Add-On Instruction to a Newer Revision
- 4 - Program an Equipment Phase
- 5 - Program a Project Offline
- 6 - Document a Project
- 7 - Go Online to the Controller
- 8 - Program a Project Online
- 9 - Troubleshoot the Controller
- Index
- Back Cover
Publication 1756-QS001E-EN-P - October 2009 19
Program and Test a Simple Project Chapter 1
Ladder Logic
For a Logix5000 controller, you enter your logic in routines.
When you create a project, the software automatically creates a main routine that uses the ladder diagram
programming language.
Item Description
A A routine provides the executable code (logic) for a program (similar to a program file in a
PLC or SLC controller).
B There is one main routine you assign for each program.
• When the program executes, its main routine automatically executes.
• Use the main routine to control the execution of the other routines in the program.
• To call (execute) another routine (subroutine) within the program, use a Jump to
Subroutine (JSR) instruction.
C A subroutine is any routine other than the main routine or fault routine. To execute a
subroutine, use a Jump to Subroutine (JSR) instruction in another routine, such as the main
routine.
A
B
C