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
46 Publication 1756-QS001E-EN-P - October 2009
Chapter 2 Organize a Project
Divide Each Routine Into More Meaningful Increments
If a routine uses this
language
Then Example
Ladder logic
Structured text
Break up large routines into several
smaller routines
To continuously execute several
complex boolean operations…
…create a separate routine for each
operation.
Function block diagram
(FBD)
To control 4 valves, where each valve
requires feedback that it is in its
commanded position…
…make a separate sheet for each
valve.
Sequential function chart
(SFC)
To perform the following sequence:
1. Fill a tank.
2. Mix the ingredients in the
tank.
3. Empty the tank…
…make each section (fill, mix, empty)
a separate step.
routine
routine
Within the FBD routine, make
a sheet for each functional
loop for a device, such as a
motor or valve.
sheet
routine
step
step
step
Break the SFC into steps.