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 77
Program a Project Offline Chapter 5
Enter a Function Block Diagram
A function block diagram lets you visually define the flow of data between instructions. The data flow then
drives the execution order of the instructions.
Item Description
A Sheet divides the diagram into sections without affecting execution. When the routine
executes, all sheets execute.
B Input reference (IREF) reads a value from a tag or set a constant value
C Wire transfers a value between elements
D Instruction produces output values based on input values
E Output reference (OREF) writes a value to a tag
F Output wire connector (OCON) writes a value to one or more ICONs
G Input wire connector (ICON) reads a value from an OCON on the same sheet or a different
sheet in the routine. To read a value from another routine, use an OREF/IREF combination.
A
D
F
E
G
C
B