Allen-Bradley Bulletin 5370 CVIM User manual

Important User Information Solid state equipment has operational characteristics differing from those of
electromechanical equipment. “Safety Guidelines for the Application,
Installation and Maintenance of Solid State Controls” (Publication SGI- 1.1)
describes some important differences between solid state equipment and
hard-wired electromechanical devices. Because of this difference, and also
because of the wide variety of uses for solid state equipment, all persons
responsible for applying this equipment must satisfy themselves that each
intended application of this equipment is acceptable.
In no event will the Allen-Bradley Company be responsible or liable for
indirect or consequential damages resulting from the use or application of
this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with
any particular installation, the Allen-Bradley Company cannot assume
responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Allen-Bradley Company with respect to use
of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of the Allen-Bradley Company is prohibited.

Table
of Contents
-
Chapter Title Page
1 Introduction : CVIM Machine Vision
Chapter Objective ...............................
CVIM Quick Start Self-Training Guide .............
User Manual Objective ..........................
User Experience .................................
CVIM Machine Vision: System Overview . __. _. __. .
CVIM Operating Modes ..........................
Stand-Alone Mode ...........................
HostedMode ................................
Basic Hardware .................................
CVlMModule ................................
Pyramid Integrator Chassis ....................
Chassis Power Supply .........................
Video Monitors ..............................
LightPen ....................................
Camera
lnterfaceMbd~l~s’1111~1~1~~1~~~~~~1~~111~1111
User Interface Box .........................
I/OlnterfaceBox ..........................
1771 JMB Interface Board ..................
Interconnecting Cables .......................
Communication Channels ........................
Discrete I/O Lines .............................
Remotel/OPort ..............................
RS-232 Communications Port ..................
Chassis Backplane ............................
Warnings and Cautions ..........................
Reference Publications ..........................
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2 CVIM Hardware Connection and Powerup Check
ChapterObjectives .............................. 2-l
CVIM System Components ....................... 2-l
Connecting CVIM System Components ............ 2-l
Powering Up CVIM System ....................... 2-9
3 CVIM User Interface
Chapter Objective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-l
CVIM Userlnterface . . . . . . . . . . . . . .._............. 3-l
LightPen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Pointing and Highlighting . . . . _. ____. . . . . __. _. 3-2
Picking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

2 Table of Contents
Chapter Title Page
3 (continued) Dragging ................................... 3-3
Placing ..................................... 3-3
Summary: Manipulating Symbols ............. 3-3
Graphic Figures ................................. 3-4
Menus ...................................... 3-4
Tables ...................................... 3-6
Symbols ..................................... 3-8
Configuration Shortcut .......................... 3-9
HelpMessages .................................. 3-l 1
Menu Removal Function ......................... 3-l 1
4 Operating Environment
Chapter Objective ..............................
Operating Environment .........................
Configuring Operating Environment .............
Selecting Environ Popup Menu ................
Selecting System Popup Menu
and Parameters .............................
Selecting Host Select Popup Menu ..........
Selecting Tool Display Status ...............
Selecting MonitorType ....................
Selecting Units Popup Menu ...............
Selecting /IO Popup Menu
andparameters .............................
Selecting Output Assignment Popup Menu . .
Assigning Output Line Functions ...........
Selecting RS-232 Parameters ...............
Selecting 1771 Remote /IO Parameters ......
Selecting Tool Set Popup Menu
and Parameters .............................
Selecting Too/Set #I Camera and Trigger ...
Selecting Too/Set #2 Camera and Trigger . . _
Selecting Active Tool Set ...................
4-l
4-l
4-2
4-2
4-3 -
4-3
4-5
4-5
4-6
4-7
4-8
4-9
4-12
4-13
4-15
4-16
4-18
4-20
5 Camera and Lighting Parameters
Chapter Objectives . _. . . _. . . . _. . . . . . . . . . . _. . . . _. .
Configuration Categories . . . . . . . . . _. . . . . . . . . . _. . .
Configuring Camera and Lighting Parameters _. . . _
Selecting Camera Popup Menu
and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Camera Type/Mode Popup Menu . . . . .
Selecting Shutter Parameter . . . _. . . . . _. . . . __. .
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5-2 -
5-3
5-4

Table of Contents 3
Chapter Title Page
5 (continued) Using Focus Camera Function .................
Selecting LightinglI?eso/ution Popup Menu
and Parameters .............................
Selecting Resolution Popup Menu ..........
Setting Light Reference Threshold ..........
Selecting Light Probe Popup Menu
and Parameters .............................
Selecting Probe Status Popup Menu .........
Using Pick & Place Function ................
Using Learn Function ......................
Assigning Range Limits and Output Lines ....
Using Object Calibration and Grid Calibration . . _
Selecting Object Calibration Functions
and Parameters .............................
Using Pick & Place Function ................
Defining Edges ...........................
Performing Calibrate Function .............
Entering Calibration Object Dimensions .....
Selecting Grid Calibration Functions
and Parameters .............................
Using Pick & P/ace Function ................
Defining Edges ...........................
Entering Calibration Grid Dimensions ______
Performing Calibrate Function .............
5-6
5-7
5-8
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5-12
5-14
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5-48
6 Reference Tools: Lines and Windows
Chapterobjectives .___..._.._....__.............
A Few Questions and Answers
About Reference Tools . . . . . . . . . . . . . . . . . . . . . . . . .
Reference Lines . . . . . . . . . . . . . . . . . . . . . . . . . _. . . . . . .
Using Reference Lines . . . . . . . . . . . _. . . . . . . . . . . .
Configuring Reference Lines . . . . . . . . . . . . . . . . . .
Selecting Ref. Line Popup Menu . . . . . . . . . . . . . . .
Selecting and Enabling Reference Line . . . . . . . . .
Selecting Define Ref. Line Popup Menus
and Parameters . .._.._.____.____._..._......
Selecting Ref. Line Type Popup Menu . . . . . . .
Selecting Active Reference Line . . . . . . . . . . . . .
Selecting Binary or Gray Scale Mode . . . . . . . .
Using Pick and P/ace Function . . . . . . . . . . . . . .
Using Define Edges Function:
Binary Mode . . . . . . . . . . . _. . . . . . . . . . . . . . . . .
Using Define Edges Function:
Gray Scale Mode . _. . . _. ____. ___. _. _. . . . . .
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6-23

4 Table of Contents
Chapter
6 (continued)
Tit/e
Selecting Define Features Popup Menu
and Parameters .............................
Selecting Active Feature ...................
Selecting Search Direction .................
Selecting 5. Mode Popup Menu .............
Using Offset Function .....................
Using Learn Function .........................
Selecting Output/Reference Popup Menu
and Parameters .............................
Selecting Output Line Selection Popup Menu
Selecting Reference Popup Menu ...........
Reference Windows .............................
Using Reference Windows ....................
Shift-Only Example .......................
Rotation and Shift Example ................
Selecting Workpiece Features .................
Configuring Reference Windows ..............
Selecting Ref. Win Popup Menu ...............
Selecting and Enabling Reference Window .....
Selecting Define Features Popup Menu
and Parameters .............................
Selecting Active Feature ...................
Using P&P Feature Win. Function ...........
Using Feature Disp Function ...............
Using P&PSearch Win. Function ............
Understanding Set Score Function ..........
Determining Set Score Value ...............
Using Set Score Function ...................
Using find Feature Function ...............
Using Learn Function .........................
Selecting Output/Reference Popup Menu
and Parameters .............................
Selecting Output Line Selection Popup Menu
Selecting Reference Popup Menu ...........
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Page
6-25
6-26
6-26
6-27
6-31
6-34
6-34
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6-52
6-53
6-59
6-59
6-60
6-61
6-66
6-67
6-68
6-71
6-71
6-73
7 Inspection Tools: Gages
Chapter Objectives .......................
A Few Questions and Answers
About Gages ...........................
Gages ..................................
Using Linear Gages ....................
Using Circular Gages ..................
Configuring Gages ....................
Selecting Gage Popup Menu ...........
Selecting and Enabling Gage ...........
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
. . . .
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7-9
7-10
7-10

Table of Contents 5
Chapter Tit/e
7 (contimed) Selecting Define Gage Popup Menu
andparameters .............................
Selecting Gage Shape .....................
Selecting Operation Popup Menu ...........
Selecting Gaging Mode Popup Menus .......
Using Pick and P/ace Function ..............
Using Define Edges Function:
Binary Gaging Mode .....................
Using Define Edges Function:
Gray Scale Gaging Mode ..................
Selecting Define Features Popup Menu
andparameters .............................
Selecting Active Feature ...................
Selecting Search Direction .................
Selecting 5. Mode Popup Menu .............
Using Offset Function .....................
Using Learn Function .........................
Selecting Range/Reference Popup Menu
andparameters .............................
Assigning Range Limits and Output Lines ....
Selecting Reference Popup Menu ...........
Page
7-l 1
7-11
7-12
7-14
7-16
7-32
7-37
7-38
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7-39
7-43
7-45
7-45
7-46
7-54
8 inspectionToo/s: Wind0 ws
Chapterobjectives ..............................
A Few Questions and Answers
About Windows ...............................
Windows .......................................
Using Rectangular Windows ..................
Using Elliptical Windows ......................
Using Masks With Windows ...................
Using Polygonal Windows ....................
Configuring Windows . __. . ___. . __. ___. . _. __. _
Selecting Window Popup Menu ...............
Selecting and Enabling Window ...............
Selecting Define Window Popup Menu
andparameters .............................
Selecting Window Shape ..................
Using P&P Process Win. Function ............
Selecting Window Mask Popup Menu .......
Using P&P Mask Win. Function .............
Selecting Window Operation Popup Menu __
Configuring #O@‘s Operations .............
Using Threshold/Filter Function (Pixel and
Object Counts) ...........................
Using PixellObj Filter Menu ................
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6 Table of Contents
Chapter Tit/e
8 (con timed) Configuring GradientOperations _. . . . . . . __
Using ThresholdlFilterFunction (Gradient) . .
Using Gradient Menu _. . . . . . __. . . . . _. . . . . .
Configuring Template Match Operations . . . .
Using Learn Function . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Range/Reference Popup Menu
andparameters . . . . ..__...._._....__......__
Assigning Range Limits and Output Lines . . __
Selecting Reference Popup Menu . . ___. . . ___
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Page
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8-55
9 Configuration Aids and Storage Functions
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Aids and Storage: Overview . . _. . . . .
Using Configuration Aids and Storage Functions . __
Selecting Mist Popup Menu . . . . . . . . . . ___. . . . . .
Selecting Archival Popup Menu . . . . __. . . . . . _.
Using Set Archive Names Function _. . . . . _. .
Using Save Config. (/nt) Function _. . . . _ __.
Using Load Config. c/nt) Function . . . _. . . .
Using Load Default Config Function . . . . . .
Preparing RAM Card . . _. . . . . . . . . _. _. . . . . . .
Using Format Card Function . . . . . . . . . . _. . . .
Using Save to Card Function . _. . . . . _. . . . _.
Using Load From Card Function . _. . . . . . _. .
Selecting Snapshot Popup Menu . . . . . . . . . . . . _.
Using Acquire image Function __. . . . _. . _. . .
Using Display Test Image Function . . _. . . . . __
Selecting Analysis Popup Menu . . . . __. . . . __. . .
Using Tool Display Function . . . . . . . . . . . . . . __
Using Analyze Image Function . . __. . . . . . . . .
Using Snap &Analyze Function . . . . . . . . . . . _.
Using Continuous 5 &A Function . . . ___. . . . .
Selecting Registration Popup Menu . . . . . . . . . . _.
Using Tool Display Function . . . . . __. . . . _ _. .
Using Snap & Register Function . . . . . __. . . . .
Using Continuous 5 & R Function . . . _. . . . __.
Using Register to Image Function . . . __. . . __.
Using Learn Registration Function . . __. . ___.
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10 Runtime Functions
Chapter Objectives . . . . . . . . _ . . . _. . . _. . . . . _. . . . __
Runtime Functions: Overview . . . . . . . . . . . . . . . . . . . _
-_
10-l
10-l

Table of Contents 7
Chapter Title Page
10 (con timed) Using Runtime Functions ........................
Selecting Exit Popup Menu ....................
Selecting Runtime Init. Popup Menu ...........
Selecting Halt Status ......................
Selecting Freeze Status ....................
Selecting Output Line Status ...............
Selecting Operating Mode Status ...........
Selecting Reset Counters Function ..........
Selecting Runtime Arm Popup Menu ...........
Selecting Runtime Display Popup Menu ........
Selecting Runtime Popup Menu ...............
Selecting Save Config. (ht) Function .......
Selecting Goto Runmode Function ..........
Interpreting Run Mode Displays ...............
ImageOnly ...............................
Failed Tools
AllTools ... . . . . . . . . . . . . . . . . . . ............ ............
I/OPage ..................................
ResultsPage ..............................
Stat 1 Page ...............................
Stat2Page ...............................
Displaying Other Tool Set ..................
Using Run Mode Halt and Freeze Functions .....
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10-21
10-21
Appendix A Planning Discrete /IO Assignments
and Connections
Appendix Objective . . . . _. _. _. . . . . . . . . __. . . . . . . . . A-l
Planning Output Line Assignments . _ . . . . . . . . _. . . A-l
Using Output Line Planning Sheet . . . . . . . . . . . . . A-l
Using Output Signal Timing Data . __. . _. . . . . . . . A-5
Planning Output Line Connections _. . . . . . . . . . . . . . . A-8
Planning Connections to RS-232 Connector . . . . . A-9
Planning I/O Connections to 1771-JMB Board . . . A-9
Output Line Planning Sheet . . . _. . . . _. . . _. . . . . . . . . A-12
Appendix B Planning System Configuration
Appendix Objective .............................
System Configuration Planning ...................
Configuration Planning Tables ...................
SystemParameters ...........................
I/O Parameters (1 of 2) ........................
I/O Parameters (2 of 2) ........................
B-l
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B-l
B-l
B-2
B-2

8 Table of Contents
Chapter
Appendix B (continued)
Title
ToolSetParameters . . . . . . . . .._....._.._.._...
CameraParameters . . .._.._...._..__.._.._...
Reference Line Parameters (1 of 3) . . . . . . . . . . . _.
Reference Line Parameters (2 of 3) . . . . . . . _. . _. .
Reference Line Parameters (3 of 3) _. . _. . _. . _. , _
Reference Window Parameters . . . . . _. . . _. . . . . .
Gage Parameters (1 of 6) . . _. . . . . . . . . . . . . . . . . .
Gage Parameters (2 of 6) . . . . . . . . . . . . . . . . . . . . .
Gage Parameters (3 of 6) . . . . . . . . . . . . . . . . . . . .
Gage Parameters (4 of 6) _. . _. _. . . . . . _, . _. . _. _
Gage Parameters (5 of 6) _. . . . __. . . . _. . _. . . , _
Gage Parameters (6 of 6) . . . . . . . . . . _. . , _. . . . _.
Window Parameters (1 of 4) _. . _. . . . _. . __. . . . .
Window Parameters (2 of 4) . . . . . . . . . . . _. . __. _
Window Parameters (3 of 4) . . . . . . . . . . . . . . . . _.
Window Parameters (4 of 4) . . . . . . _. . _. . _. __. .
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Page
B-3
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Appendix C Definition of Terms
Appendix Objective . . . . _. . . . . . . . . . . . . . . _. . . . . _. .
Definition of Terms . . . _. _. . _. . . . _. . __. . . . . . . . . _ C-l
C-l
Figure
1.1
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Title Page
List of Figures
CVIM System Components and Connections .......... l-2
CVIM Interface: Light Pen and Graphic Figures ....... 3-l
Run Mode and Main Configuration Menus ........... 3-4
Two Popup Menus ................................. 3-5
Configuration and StatisticsTables .................. 3-6
Inspection Statistics Table ........................... 3-7
Inspection Results Table ............................ 3-7
Symbols for Linear Gage and Handles ................ 3-8
Linear Gage Ready for Manipulation ................. 3-8
Light Pen Manipulation of Gage Symbol ............. 3-9
Configuration Shortcut ............................ 3-10
Reference Line Positioned Across Bottle .............. 6-4
Linear Gage Positioned Vertically Over Bottle ......... 6-5
Edge Locations on Shifted Bottle and Original Bottle . . 6-6
Linear Gage After Shift Compensation ............... 6-7
Single “Active Feature” Positioned Over
Feature on Plate ................................. 6-40
Linear Gage Positioned Over Hole in Plate ........... 6-41
Shifted Plate Compared to Original Plate ............ 6-42

Table of Contents 9
- Figure Title
6.8
6.9
6.10
6.11
6.12
6.13
7.1
7.2
7.3
7.4
7.5
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
Page
List of Figures (continued)
Rotated and Shifted Plate Compared to
“Original” Unrotated Plate . . . . . . . . . . . . . . . . . . . . . . . 6-43
Two “Active Features” Positioned Over
Features on Plate _. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
Datum Lines and Reference Angie
for Rotation Compensation . . . . . . . . . . . . . . . . . . . . . . . 6-45
Basisfor Determining Rotation Compensation . . . . . . . 6-46
Datum Line and Midpoint for Shift Compensation . . . . 6-47
Basisfor Determining Shift Compensation . . . . . . . . . . . 6-48
Linear Gage Configured to Measure Head-to-Edge . . . . 7-3
Linear Gage Configured to Measure
Edge-to-Edge Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Linear Gage Measuring Liquid Level
on Shifted Bottle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Circular Gage Configured to Count Edges or Pixels . . . . 7-7
Circular Gages Configured to Measure
Width of a Tooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Screen Image of Metal Plate . . . . . . _. . . . . . . . . . . _. . . . . . 8-3
Rectangular Window Around Metal Plate . . . . . . . . . . . . 8-4
Rectangular Window Positioned Around
HolesinMetalPlate . . . . . . . . . . . . . . . . . . . . . . . . . . .._.. 8-5
Circular Windows Around Holes in Metal Plate . . . . . . . _ 8-6
Looking Into Open End of Cylinder
With and Without O-Ring . . . . _. . . . . . . . . . . . . . _. . . . . 8-7
Circular Window Positioned Over End of Cylinder . . . . . 8-8
Circular Window with Mask Positioned
Over End of Cylinder . . . . . . . . . . . . . . . . . _. . . . . . . . . . . . 8-9
Polygonal Window Around Screws in Workpiece . . . _. 8-10

-
-

Chapter I Introduction..-
CVIM Machine Vision
Chapter Objective The objective of this chapter is to introduce you to the
Allen-Bradley 5370 CVIM (Configurable Vision Input
Module) machine vision system and explain the main
objective of this manual.
CVIMQuick Start
Self- Training Guide Before you use this manual, you should first acquaint
yourself with the CVIM Quick Start Self-Training Guide,
Catalog No. 5370-ND003.
The quick-start guide steps you through the basics of the
CVIM user interface. It explains the popup menus and
graphic symbols on the video monitor screen, and it shows
you how to use the light pen to select the menus and
manipulate the symbols on the monitor screen.
User Manual Objective The objective of the CVIM User Manual is to provide the
information and procedures you need to prepare your CVIM
system for an inspection application.
First, Chapter 2 steps you through the procedures for
connecting the CVIM components, powering up the system,
and checking the system’s status. For complete installation
instructions, refer to the Allen-Bradley Pyramid Integrator
Installation Manual, Publication 5000-6.2.10.
Second, Chapter 3 introduces you to the CVIM user interface
and shows you how to use it.
Third, Chapters 4 through 10 step you through the
procedures for configuring system parameters and analysis
tools, storing configurations, and operating the CVIM
system and observing inspection results.
Where appropriate, the user manual provides one or more
simple examples to help you understand the concepts
involved in a particular feature or function. Following an
example, the user manual provides the step-by-step
instructions for configuring the feature or function.
Of course, your application may not require all of the CVIM
system’s capabilities. In that case, you need refer only to the
chapters or sections that your application requires.
NOTE: It is beyond the scope of this manual to show you
how to configure your CVIM system for specific applications.

l-2 Chapter 1 Introduction: CVlM Machine Vision
-
User Experience This manual and the CVIM system are intended for
technical operators with little or no programming
experience. However, if you are integrating the CVIM
system into an existing programmable logic controller (PLO
system, experience in PLC operation would be helpful. You
should be familiar with the Allen-Bradley line of PLCs and
have some Ladder-Logic programming experience.
CVIM Machine Vision:
System Overview The CVIM system provides a flexible, easy-to-configure
machine vision system, with powerful analysis tools, for a
large variety of manufacturing inspection applications.
The system consists of several modules and peripheral
components. This includes the CVIM module, a chassis and
power supply, a video monitor, and one or two cameras.
Figure 1.1 identifies, in symbolic form, the basic CVIM
system components and shows the connections between
these components and the external equipment.
Fiaure 1.l CVIM Svstem Components and Connections
-
: .:-.::::.::.:‘.:.:.-: :: ::.::;:::::::’
Ij::j?:.;::.::1 Remote 110(obional)
1
RS-232 and Discrete (optional) 1 I
User
Interface
Video Box I
Monitor 1 I
L
+ To: I
Ew
Jser PLC
lipment
lamera
I/O
Interface
Box Workpiece
Discrete I/O
Board
Light
Pen 1 RS-232 ;;;;;;
Equipment
-.
-

Chapter 1 Introduction: CVlM Machine Vision l-3
Cl//M Machine Vision:
System Overview During CVIM system configuration, you will be using the light pen and the video monitor to prepare the CVIM system
(continued) for inspection tasks.
During an inspection cycle, the solid state camera acquires
an image of the item to be inspected (the “workpiece”) and
sends it to the CVIM module. There, specialized machine
vision circuitry digitizes the image and displays it on the
video monitor, then analyzes designated parts of the image
using its analysis tools.
The CVIM module sends the results of that analysis - a
“pass/fail” signal - to your production equipment, which can
accordingly accept or reject the workpiece.
CVIM Operating Modes The CVIM machine vision system can operate as a stand-
alone vision system or as a hosted system, in which the
CVIM system interacts with a host system through the
chassis backplane or through a front panel port.
Stand-A/one Mode The term “stand-alone mode” means that CVIM system
control takes place through a set of discrete I/O lines
connected to your production equipment.
In this mode, the CVIM system receives trigger signals
directly from your production equipment, and sends
inspection results signals directly to that equipment. These
signals are routed to your production equipment through a
discrete UO port on the CVIM module’s front panel.
Hosted Mode The term “hosted mode” means that one of the three CVIM
communications ports is designated as the host: the remote
I/O port, the RS-232 port, and the chassis backplane. You can
designate only one as host at any given time.
In this mode, only the designated host can issue commands
to control CVIM operation, trigger inspections, upload and
download configurations, and change displays.
Data, however, can be accessed through all three ports
simz&aneo~sly. This means that your computer or PLC
equipment can read discrete bits and numerical results
information through any of the three ports, regardless of
which is the designated host.

1-4 Chapter 1 Introduction: CVlM Machine Vision
Basic Hardware This section identifies and briefly describes the basic
hardware components for a CVIM system, namely:
l CVIM module.
l Pyramid Integrator chassis.
l Chassis power supply.
l Video monitor.
l Light pen.
l Camera.
l Interface modules.
l Interconnecting cables.
CVIM Module The CVIM module contains all of the machine vision
circuitry - the hardware and software that analyze the
camera’s image and control the communications. The
module occupies one slot in the chassis.
Communications between the CVIM module and other
modules in the same chassis take place through the chassis
backplane.
Communications between the CVIM module and external
devices take place through the front panel ports.
Pyramid Integrator Chassis Two Pyramid Integrator chassis are available: One has four
slots, and the other has eight slots.
The 4-slot chassis can accommodate up to four CVIM
modules, and the 8-slot chassis can accommodate up to eight
modules.
Chassis Power Supply The chassis power supply plugs into the leftmost slot of the
chassis, which is dedicated to the power supply. The power
supply requires an input voltage range of either 90 to 132
VAC or 180 to 264 VAC.
The power supply provides the following DC voltage and
amperage outputs:
l + 5VDC @ 35A.
l + 12VDC @ 800mA.
0 -12VDC @ 800mA.

Chapter 7 Introduction: W/M Machine Vision l-5
Chassis Power Supply
(continued)
Video Monitors
-
Light Pen
An external + 24 VDC power supply may be needed for
applications that require several cameras. If so, the chassis
power supply has a front panel input connection for the
+ 24VDC source. This connection can also carry fan status
signals from an optional fan chassis.
Allen-Bradley offers two cable assemblies for connecting the
24VDC power supply to the chassis power supply. The first
assembly carries only the + 24VDC. The second carries fan
status from the fan chassis as well as + 24VDC from the
external power supply.
A video monitor is required to configure the CVIM system
for its inspection applications. During CVIM system
operation, the monitor can also be used to observe inspection
results.
The monitor screen displays the image from the camera and
the popup menus and graphic symbols from the CVIM
module. These menus and symbols, along with the light pen,
are used to configure the CVIM system.
Allen-Bradley offers three video monitors: g-inch and 12-
inch monochrome monitors, and a 13-inch rack-mounted
color monitor. The g-inch monochrome monitor is available
in 115VAC and 230VAC versions.
NOTE: The procedures described in this manual are based
on the assumption that you have a color monitor.
Like the video monitor, the light pen is required to configure
the CVIM system for its inspection applications.
The light pen has a light-sensitive sensor and a spring-
loaded switch in its tip. Light from the monitor screen
reaches the sensor through a small hole in the tip. The tip
activates the switch when you press the tip against the
monitor screen.
You operate the light pen by pressing its tip against a popup
menu or other symbol on the monitor screen. This generates
signals from the sensor and switch. The CVIM system uses
the timing of these signals to determine the appropriate
response.
Together, the light pen and the screen symbols form the user
interface, which is the means by which you configure the
CVIM system for its inspection tasks. Chapter 3, CV1M User
Interface, describes the user interface in detail.

l-6 Chapter 1 In trodoction: CVIM Machine Vision
-
Camera Allen-Bradley offers a solid state camera for use with the
CVIM system. One CVIM module can accomodate two
cameras.
The low voltage DC power for the camera comes from either
the chassis power supply or from an external DC power
supply. The chassis power supply is generally sufficient for
applications using one or two cameras.
Interface Modules The CVIM system uses two interface modules or “boxes”
and one printed circuit board to distribute signals:
l The user interface box.
l The I/O interface box.
l The 1771 JMB interface board.
User Interface Box
This box receives video signals from the CVIM module
through the user interface cable. It routes the video signals
to the monitor through a single coaxial cable (monochrome)
or four coaxial cables (color).
The user interface box also receives switch and light sensor
signals from the light pen, and routes them to the CVIM -
module through the user interface cable.
Finally, the user interface box receives + 5 VDC from the
CVIM module, which it uses to energize itself and the light
sensor in the light pen.
II0 Interface Box
This box routes discrete I/O signals between a 1771-JMB I/O
board (described below) and the CVIM module. The I/O
interface module connects directly to the 1771-JMB board.
The I/O interface box also routes RS-232 data
communication signals between the CVIM module and host
computer equipment. The box uses a g-pin D-type connector
to carry the RS-232 signals.
1771 JMB Interface Board
This board routes discrete input and output signals between
the I/O interface box and your production equipment. The
JMB board connects directly to the I/O interface box.
The JMB board contains up to 16 optically isolated discrete
I/O modules, 14 of which are for output signals from the
CVIM module and two of which are for input signals from
your production equipment. _
The JMB board contains an LED for each I/O module. An
LED turns on whenever the associated I/O module receives a
signal.

Chapter 1 Introduction: CVlM Machine Vision 1-7
Interconnecting Cables Since the CVIM system consists of separate components, it
requires a number of interconnecting cables to join these
components.
Briefly, these are the cables:
l Camera cables - Catalog No. 2801-NC14, -NC15, and
NC-16 connect the camera(s) directly to the CVIM module.
l User interface cables - Catalog No. 2801-NC18A,
-NC18B, and -NC18C connect the CVIM module to the user
interface box.
l I/O cable - Catalog No. 2801-NC17 connects the CVIM
module to the I/O interface box.
l Video monitor cable(s) - Catalog No. 2801-NC2 and
-NC3 connect the video monitor to the user interface box.
(The monochrome monitor uses one cable; the color monitor
uses four cables.)
Communication
Channels The CVIM module has four channels for communicating with other equipment:
l Sixteen discrete I/O lines.
l A remote I/O port.
l An RS-232 communications port.
l The chassis backplane.
Discrete 110 Lines The CVIM system provides 16 discrete I/O lines, whose
signals enable direct interaction between the system and
your production equipment.
Of the 16 lines, two are “trigger signal” lines. These are
dedicated input lines, which are equipped to carry signals
from part-presence sensors. The other 14 lines are all
dedicated output lines, whose functions you can assign
during CVIM system configuration.
The CVIM module has a special front panel port (called
Module I/O) that routes both RS-232 data and discrete I/O
signals to the I/O interface box.
The discrete I/O signals from the I/O interface box connect
directly to the 1771 JMB board through an edge connector on
the JMB board. I/O modules on the JMB board provide
electrical isolation between your production equipment and
the CVIM system.

7-8 Chapter 1 Introduction: CWM Machine Vision
-
Remote 110Port The CVIM system has a remote I/O port for carrying data
between the CVIM system and a 1771-based PLC
(programmable logic controller) system.
Input data consists of configuration parameters or control
commands. Output data consists of configuration
parameters, inspection results, and CVIM module status.
RS-232 Communications Port The CVIM system has an RS-232 serial communications
port for carrying data between the CVIM system and
computer equipment or a PLC system.
Input data consists of configuration parameters or control
commands. Output data consists of configuration
parameters, inspection results, and CVIM module status.
Chassis Backplane When the chassis has other modules (such as a PLC 5/250)
installed, the CVIM system can use the chassis backplane to
carry data between the CVIM system and the other modules.
Input data consists of configuration parameters or control
commands. Output data consists of configuration
parameters, inspection results, and CVIM module status. -
Warnings and Cautions Warnings and cautions occasionally appear in this manual.
They are included in order to protect both you and the
equipment. They appear as follows:
A CAUTION: A caution symbol is used when the
? equipment could be damaged or performance
0 seriously impaired if stated procedures are not
followed.
A WARNING : A warning symbol means that a
t person may be injured if the stated procedures
l are not followed.