Allen-Bradley AdaptaScan Bar Code Readers (Cat. No.
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.
Using this Manual Preface Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CE Directives . . . . . . . . . . . . . . . . . . . . . .
Table of Contents AdaptaScan Software (Catalog No. 2755-ASN) . . . . . . . . . . . . . . . . . . . . . . Scanning Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Focus Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Decoding Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Catalog No. 2755-PW46 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . Catalog No. 2755-PW47 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Specifications Appendix A Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output Modules . . . . . . . . .
Preface Using this Manual Chapter Objectives Read this chapter to familiarize yourself with the rest of the manual. You will learn about: • • • • • Overview of this Manual Contents of this manual Intended audience Terminology CE Directives Related publications The following table describes the contents of each chapter in this manual. Chapter Title Purpose Preface Provides an overview of the manual. 1 Overview Describes the main features and operating capabilities of the AdaptaScan Reader.
P1–2 Using this Manual Intended Audience Because the AdaptaScan Software runs in the Microsoft Windows environment, you should know how to use a mouse, choose commands, and work with windows and dialogs. You should also have a basic understanding of PLC and SLC Controllers. Equipment installers must be familiar with standard wiring techniques and terminology. Terminology This manual contains some terms that may be unfamiliar. Use the glossary at the back of this manual for assistance.
Chapter 1 Chapter Objectives This chapter briefly describes the AdaptaScan Bar Code Reader. Section Series B Changes Page Typical System 1–2 Reader 1–3 Typical Applications 1–5 Scanning Modes 1–8 Wiring Base 1–9 Communication Options 1–11 AdaptaScan Software 1–14 Safety Labels 1–17 Options and Accessories 1–18 If you are familiar with the Series A Reader and/or are replacing a Series A Reader, note the following changes in the Series B versions.
1–2 Overview Typical System A typical AdaptaScan installation consists of: • Reader • Wiring Base • Package Detector Personal Computer (For Configuration and Setup) Configuration Cable Reader Wiring Base To Network or Control Device Package Detector The Reader is configured using the AdaptaScan Software (Catalog No. 2755-ASN) and configuration cable (Catalog No. 2755-NC48). One software package and configuration cable is required per installation.
Overview 1–3 Reader LED Indicators Configuration Port Connector Scan Window Dust Cap Wiring Base Connector The Reader scans and decodes bar code symbols. The integral decoder decodes the most common bar code symbologies. The scan and decode functions are configured using software on a personal computer.
1–4 Overview LED Indicators Seven LEDs provide the following indications. Indicator Module Condition Indicates: Green Flashing Green Normal operating state Initialization and/or incorrect (unconfigured) configuration Processor fault (nonrecoverable) Minor fault (recoverable). Occurs when downloading firmware. No power applied to Reader Normal DeviceNet operating state Communication link established, but not data transfer. Communication fault One or more DeviceNet devices are not responding.
Overview Typical Applications 1–5 The flexibility of the Reader allows you to configure it for a variety of applications. This section shows the basic system types. Standalone In a typical standalone setup, a single Reader scans bar codes on the side of a package moving down a conveyor. ➂ ➄ ➃ ➀ ➁ The package crosses the beam between the package detector ➀ and reflector ➁. The Reader ➂ scans and decodes bar code symbols on the package. You can configure the decoder with match table data.
1–6 Overview Distributed (DeviceNet Master/Slave, DH-485) The distributed application below shows three Readers scanning bar codes at different points in an assembly process. Data from any Reader is individually sent to a controller. The discrete I/O on each Reader provide distributed control independent of the PLC monitoring the process. Controller ➁ ➃ ➂ ➀ Reader ➀ identifies major sub-assemblies for routing to the proper final assembly area.
Overview 1–7 Distributed (DeviceNet Peer-to-Peer) Peer-to-Peer communications allows a single Reader to gather data from other Readers over a DeviceNet network. The Reader then transfers the collected data to a host, such as a controller, over an RS-232 link. ➁ ➂ ➄ ➀ ➃ Readers ➀ through ➃ transfer data over a DeviceNet network to Reader ➂ which collects the data and then transfers the data over an RS-232 link to the host ➄.
1–8 Overview Scanning Modes You can configure a Reader as either a linear or raster scanner. The orientation of the bar code label with the scanner usually determines the scanning mode appropriate for the application. Linear Mode Scan Line Elevation is adjustable. Linear In the linear scan mode, the scan line elevation can be be adjusted. Raster Mode Upper and lower raster limits are adjustable. Raster Flyback quickly returns the scan line to the upper raster limit after the lower limit is reached.
Overview Wiring Base 1–9 The Reader plugs into a wiring base. All wiring base connections are made using common electrician tools. Install the Reader after the wiring base is installed to reduce the possibility of damage.
1–10 Overview Reader Connector The Reader plugs into this connector. All power and communications with the Reader occurs through this connector. I/O Module Sockets Two sockets support any combination of the following input and output modules. See specifications in Appendix A. Description Catalog Number DC Output Module – rated at 3 to 60 VDC. 2755-OB5S AC Output Module – rated at 12 to 140 VAC. 2755-OA5S AC Output Module – rated at 24 to 280 VAC. 2755-OM5S DC Input Module – accepts 3.3 to 32 VDC.
Overview Communication Options 1–11 This section defines the communication options for the Reader. DeviceNet Network AdaptaScan Readers support both DeviceNet Master/Slave and Peer-to-Peer protocols. On a DeviceNet Master/Slave network, Readers and other DeviceNet slave devices communicate with a DeviceNet Scanner (Master). Up to 63 slave devices are allowed on a master/slave network. On a DeviceNet peer-to-peer network, up to 32 Readers can be connected together.
1–12 Overview RS-422 / RS-485 An RS-422 / RS-485 port allows point-to-point communications with a single device. Through the RS-485 port, the AdaptaScan Reader can also communicate with a DH-485 network. Both master and slave modes are supported. As a master device, the Reader sends data directly to an SLC 5/03 or 5/04 processor’s data table; no polling is required by the SLC. As a slave device, the Reader connects to the Flexible Interface Module (Catalog No. 2760-RB) for multi-drop communications.
Overview 1–13 RS-232 The RS-232 port provides point-to-point communications with a device having an RS-232 port, such as a PLC-5 Channel 0 port or computer. PLC-5 Channel 0 (Configured for RS-232) Reader RS-232 Protocols The RS-485/RS-422 and RS-232 serial ports support these protocols. Protocol Allen-Bradley DF1 Allen-Bradley DH485 Terminal Description A peer-to-peer protocol that combines features of ANSI X3.
1–14 Overview AdaptaScan Software (Catalog No. 2755-ASN) The AdaptaScan Software (Catalog No. 2755-ASN), a WindowsTM based package, lets you configure a Reader through a series of menus, tools and dialog boxes. Context sensitive help is available to assist with use of the software. All Reader functions are configured from the Project dialog shown below, providing a single point of access for all operations. The Project window has buttons for accessing these operations.
Overview 1–15 Scanning Parameters You can configure the Reader for linear or raster scanning. Setup dialogs determine when and how the laser scans a bar code symbol. Raster Setup Linear Setup Focus Options The Reader has a variable focus distance. The software supports manual, preset, and focus options. • Manual Manual adjustment of the read range allows you to fine-tune the focus setting for a maximum read percentage.
1–16 Overview Decoding Operations Menus and dialog boxes also define parameters that determine when and how decoding occurs and the destination of the data. System Monitoring The software monitors a Reader on the network. Use this feature for initial setup and adjustment. Online Adjustments Make online adjustments to one or more Readers on a DeviceNet network using the Apply button which is available on specific dialogs. This allows fine tuning of an entire system from a single connection.
Overview Safety Labels 1–17 The Readers use a visible laser diode. As with any bright light source, such as the sun, you should avoid staring directly into the beam. Momentary exposure to a CDRH Class II laser product is not known to be harmful. The following shows the location of all safety labels as they appear on the Reader. ! ATTENTION: Use of controls, adjustments, or procedures other than those specified herein may result in hazardous laser light exposure.
1–18 Overview Ordering Information The following Readers are available. Item Description 300 scans per second, raster/linear scan, VLD, scanner/decoder 500 scans per second, raster/linear scan, Reader VLD, scanner/decoder 800 scans per second, raster/linear scan, VLD, scanner/decoder ➀ Contact Allen-Bradley for availability. Catalog No. 2755-SN3➀ 2755-SN5 2755-SN8 The following items are available. Each installation requires one AdaptaScan Software package (Catalog No.
Chapter 2 Installation Considerations Chapter Objectives This chapter describes important factors that affect how the AdaptaScan Bar Code Reader is oriented in respect to package or component labels.
2–2 Installation Considerations Picket Fence or Step Ladder Orientation The Reader supports raster and linear scanning. The Reader can be mounted in either a step ladder or picket fence orientation with respect to the bar code label. The type of scanning and the placement of the bar code label usually determines the orientation.
Installation Considerations Skew, Pitch and Tilt 2–3 The skew, pitch and tilt of a bar code symbol affect its readability. Symbols that are pitched or skewed up to 45 are still readable. Although some skew is needed (see below), it should not exceed 45 . Symbols may be tilted if the scan beam passes through all bars.
2–4 Installation Considerations Usable Beam Width The usable beam width depends on the Reader type, the scan angle and the distance from the bar code symbol. Make sure that the scan beam is wide enough for the area you are scanning. Increasing the scan angle setting (using configuration software) or moving the Reader away from the symbol increases the beam width. The usable beam width is approximately 80% of the total beam width. The end 10% on either side of the scan beam cannot decode bar code symbols.
Installation Considerations Maximum Usable Beam Width (Catalog No. 2755-SN5) At This Distance: Usable Beam Width Is: 51.0 inches (1.30 meter) 47.3 inches (1.20 meter) 70 inches (1.78 meter) 65 inches (1.65 meter) 43.7 inches (1.11 meter) 60 inches (1.52 meter) 55 inches (1.40 meter) 50 inches (1.27 meter) 45 inches (1.14 meter) 40 inches (1.02 meter) 35 inches (.89 meter) 30 inches (.76 meter) 25 inches (.64 meter) 20 inches (.51 meter) 15 inches (.38 meter) 10 inches (.25 meter) 40.0 inches (1.
2–6 Installation Considerations Apparent Element Width An element is either a bar or space between bars in a bar code. The maximum read range is determined by the narrowest element. If the bar code symbols are pitched with respect to the Reader, the apparent width of the bar code elements is reduced. This reduction in the element width affects the read range. When using the Read Range charts (page 2–8), use the apparent element width, not the actual element width.
Installation Considerations You can adjust the scan beam after the Reader is installed. Online adjustments can affect the width and location of the scan beam. Use these adjustments to fine-tune an application, not to compensate for improper installation. Chapter 6 describes how to make these adjustments. • Scan Angle adjusts the beam width. Scanner Optical Scan Angles➀ 2755-SN3 22_ ➁ to 72_ 2755-SN5 20_ to 50_ 2755-SN8 18_ to 30_ ➀ Usable scan angle is 80% of the optical scan angle.
2–8 Installation Considerations Read Ranges The following tables show tabular read range limits for the three versions of the AdaptaScan Readers. ➀ Read ranges based on four character Code 39 labels with a wide to narrow bar ratio of 2.6 to 1 and a print contrast ratio of .75 or better. Read ranges will vary with bar code symbol quality. Table 2.A Read Ranges, Catalog No. 2755-SN3➀ ➁ When scanning labels at an angle apparent element width is less than the actual element width.
Installation Considerations Calculating Scans per Label 2–9 Use the following formulas to calculate the number of scans per label and the minimum number of scans per second needed for an application. The minimum scan speed required is based on five scans per label. Formulas Picket Fence Orientation Step Ladder Orientation Scans per Label = (X-Y) A Z A xH Z Minimum Scan Speed Required = Z x5 X-Y Z x5 H Where: A = Derated Scan Rate (Nominal Scan Rate –5%) = 285 SPS for Catalog No.
Chapter 3 Installing the Wiring Base and Power Supply Chapter Objectives This chapter describes how to install and mount the wiring base.
3–2 Installing the Wiring Base and Power Supply Dimensions and Clearances Make sure there is adequate space around the Reader for: • Mounting and removing the Reader • Wiring base connections • Configuration cable Reader Front View Midpoint Scan Line 3.57 Inches (91 mm) 7.14 Inches (182 mm) Side View Back View 4.26 Inches (108 mm) 3.91 Inches (99 mm) 3.95 Inches (100 mm) .
Installing the Wiring Base and Power Supply 3–3 Wiring Base The wiring base is available in two versions: • U.S. Version (Catalog No. 2755-NB40) • Metric Version (Catalog No. 2755-NB41) The dimensions are identical for both versions. Differences are in the thread sizes of the conduit holes and the bottom mounting holes. 3.87 Inches (98 mm) 5.36 Inches (137 mm) 1.67 Inches (42 mm) 1.67 Inches (42 mm) Front View End View 5.36 Inches (137 mm) 3.
3–4 Mounting the Wiring Base Installing the Wiring Base and Power Supply There are 2 options for mounting the wiring base (Catalog No. 2755-NB40 or -NB41): • Top Mounting – Mount the base using 3 screws through the top mounting holes. • Bottom Mounting – Mount the base using 3 screws through the mounting surface into threaded holes on bottom of wiring base. Top Mounting The wiring base mounts from the top to any flat surface with three #10 or M5 mounting screws.
Installing the Wiring Base and Power Supply 3–5 Bottom Mounting The wiring base mounts from the bottom to any flat surface with three mounting screws. The holes on the U.S. version have #10-32 UNF-2B threads. The holes on the metric version have M5 x .8 threads. The length of the screws must not be greater than 1/2 inch (12.5 mm) plus the thickness of the mounting surface.
3–6 Installing the Wiring Base and Power Supply Conduit and Cable Connections All permanent Reader connections are made to the wiring base. Wiring connections are made with conduit or cables. The conduit openings in the wiring base are different for the U.S. and metric versions. The U.S. version (Catalog No. 2755-NB40) has 1/2-14 NPSC threads, the metric version (Catalog No. 2755-NB41) has PG13.5-18 threads. See the chart below for recommended wire and cable types.
Installing the Wiring Base and Power Supply 3–7 Conduit Use flexible conduit whenever possible. This allows you to adjust the position of the Reader (when mounting bracket is used). Conduit Fitting User Supplied Conduit Hole Plug (Metric ) Hole Plug (U.S. ) Wires Hole Plugs Three hole plugs are supplied with the wiring base. Use these plugs on unused conduit openings to maintain the NEMA Type 4 rating. U.S. Wiring Base (Catalog No. 2755-NB40) The conduit opening for the U.S.
3–8 Installing the Wiring Base and Power Supply Mounting Bracket The mounting bracket kit (Catalog No. 2755-NM42) is suitable for a variety of applications. This bracket allows you to mount the Reader at just about any angle or degree of rotation. Kit Contents The mounting bracket kit contains: • • • • • Adjustable mounting bracket Mounting plate Safety wire Two hex socket screws Hex bolt ! ATTENTION: Install the safety wire when the bracket is mounted in an inverted position.
Installing the Wiring Base and Power Supply 3–9 Top Post Mounting The mounting plate attaches to the bottom of the wiring base with three screws (see next page). The mounting bracket post is threaded into the hole at the center of the mounting plate. Lock the mounting post in position by tightening the locking knob. For additional security, you can remove the locking knob and replace it with the hex bolt provided. The two hex socket screws are not used in this configuration.
3–10 Installing the Wiring Base and Power Supply Side Post Mounting The mounting plate attaches to the bottom of the wiring base with three screws that are provided with the base. The mounting bracket post (flat side) attaches to the mounting plate with two hex socket screws. Five sets of 2 holes allow the bracket post to attach to the front, back or either side of the mounting plate. Lock the mounting post in position by tightening the locking knob.
Installing the Wiring Base and Power Supply 3–11 Installing the Safety Wire Install the safety wire whenever the mounting bracket is installed in an inverted position. The safety wire prevents the Reader from dropping to the floor when the bracket locking knob is loosened. Attaches to Mounting Plate Screw Safety Wire Clamping Nut Loosen Locking Knob to Remove Clamping Nut Place one end of the safety wire under a mounting bracket clamping nut.
3–12 Installing the Wiring Base and Power Supply Power Requirements The Reader requires 14 watts (maximum) of power. The Reader accepts 11 to 28 VDC at either one of the two DeviceNet terminal blocks (terminals 1 & 5), even if DeviceNet is not used. 11-28 VDC+ 11-28 VDC+ V- V- From Power Supply Connect to Earth Ground Reverse Polarity Indicator The reverse polarity LED (top illustration) is Green when power is properly connected. If this LED is Red, the power + and – connections are reversed.
Installing the Wiring Base and Power Supply 3–13 Catalog No. 2755-PW46 Power Supply The 120 VAC Power Supply (Catalog No. 2755-PW46) provides power to one AdaptaScan Bar Code Reader. It is not rated for industrial environments and must be mounted in a clean, dry location or a suitable enclosure. Connections to the power supply are made at the 3 screw terminals. 2.75 Inches (70mm) 3.25 Inches (83 mm) + – Catalog No. 2755-PW47 Power Supply The 240 VAC power supply (Catalog No.
3–14 Installing the Wiring Base and Power Supply Power Connections Single Reader Power Connection Below is a single power supply (Catalog No. 2755-PW46, -PW47) providing power to a single Reader. Do not connect other DeviceNet power supplies to the 2755-PW46 or -PW47 supply. Use a shielded cable (Belden 9316 recommended) when making power connections. Note: You must ground V- to Earth Ground at a single point, preferably as near the power supply as possible.
Installing the Wiring Base and Power Supply Reader 2 Reader 1 3–15 Reader 3 Other DeviceNet Devices Ground V- at One Place V- 24V+ VGround Screw on Wiring Base 24V+ VGround Screw on Wiring Base 24V+ Ground Screw on Wiring Base Ground Screw on Wiring Base See DeviceNet Cable System Planning and Installation Manual (Publication No. DN-6.7.1) for recommendations and accessories. Multiple Reader Connections using Other Power Supply Below all Readers are powered by another power supply.
3–16 Installing the Wiring Base and Power Supply DeviceNet Connections For network wiring, the wiring base has two DeviceNet terminal blocks; one for incoming power and communications, the other for outgoing power and communications. DeviceNet communications requires 3 wires (2 communications, 1 ground) and a shield. You can install the Reader in a single or multiple drop configuration. Up to 63 slave devices can be installed on a single DeviceNet master/slave network.
Installing the Wiring Base and Power Supply RS-485 and RS-422 Connections 3–17 The wiring base has an RS-485/RS-422 terminal block for point-to-point or network communications. Up to 32 devices can be installed on a single DH485 network. Important: The DH485 network cable requires proper shielding, grounding, and termination. Refer to Data Highway / Data Highway Plus / Data Highway DH485 Cable Installation Manual (Publication No. 1770-6.2.2).
3–18 Installing the Wiring Base and Power Supply RS-232 Connections The RS-232 port provides point-to-point communications at distances up to 50 feet (15.2 meters). Use the RS-232 port for a direct connection to a controller, personal computer, or other device that supports one of the protocols (terminal, Allen-Bradley DF1, Allen-Bradley DH485). Reader RS-232 connections are made to the RS-232 port terminal block.
Installing the Wiring Base and Power Supply I/O Modules and Wiring 3–19 The wiring base supports 2 optional input or output modules. Any of these modules can be used. These modules function like switches, they do not supply a voltage. Refer to Appendix A for specifications. ! ATTENTION: The wiring base contains hazardous voltages which can cause shock, burns or death. Disconnect and lockout all power sources before servicing. Verify power with meter. Description Catalog No.
3–20 Installing the Wiring Base and Power Supply Output Module Application Shown below is a typical output module application. When connecting high impedance loads, you may need to add a resistor in parallel with the load. This resistor (typically 300 to 6,000 ohms) provides a continuous minimum current flow (10 mA DC or 50 mA AC) through the output module in the closed state. See Appendix C for available Allen-Bradley fuse, diode and resistor terminal blocks.
Installing the Wiring Base and Power Supply 3–21 Input Module Application External Power Source A typical input module application using external power source: External Input Contacts Fuse Recommended – + AC or DC Source The module and the switch receive power from an external AC or DC source. Although input modules may be used for package detection, use the package detect input (see next page) whenever possible. See Appendix B for available Allen-Bradley fuse, diode and resistor terminal blocks.
3–22 Installing the Wiring Base and Power Supply Package Detector The package detect input accepts only a current sinking output. Allen-Bradley Photoswitchr package detectors are recommended. Select a switch from the PhotoSeries 6000 or 9000 product line that best suits your application. Make sure you order a sinking (12V DC) type sensor. Mounting brackets and cables are also available. Important: Package detect terminals are not powered until a Reader is installed on the wiring base.
Installing the Wiring Base and Power Supply 3–23 The following is a typical package detector configuration: Reflector Package Detector Connect the package detect wiring to the wiring base as shown. Note: If you are using a sensor with mechanical contacts, refer to page 3–21 for wiring connections to an input module.
Chapter 4 Installing / Removing the Reader Chapter Objectives This chapter describes how to install the Reader on the wiring base. Section Installation Page Installation 4–1 Power-up Sequence 4–2 Checking Reader Operation 4–2 Replacing a Reader 4–3 The Reader plugs into the connector on the wiring base. Install the Reader with or without the power disconnected from the wiring base. To install the Reader: Captive Screws 4 Locations Tighten to 18 inch-pounds (2.
4–2 Installing / Removing the Reader Power-up Sequence On initial power-up, the Reader performs a series of self-diagnostic tests and LED tests (all LEDs flash). When the Module LED flashes and turns a steady green the power-up sequence is complete. The complete power-up sequence takes a few seconds. Checking Reader Operation The Reader is shipped from the factory with these defaults: • All symbologies enabled (except Pharma Code). • Laser Light set to Always On in Scanner dialog.
Installing / Removing the Reader Replacing a Reader 4–3 To replace a Reader: Note: If you are installing more than one Reader on a network, install each Reader one at time and change the DeviceNet address before installing the next Reader. 1. Loosen the 4 screws that secure the Reader to the wiring base. Loosen the 4 captive screws. 2. Pull the Reader straight up from the wiring base. When replacing a Reader, it is not necessary to disconnect the power. 3.
Chapter 5 Downloading Configurations Chapter Objectives This chapter describes how to download a configuration between the Reader and a personal computer running the AdaptaScan software.
5–2 Downloading Configurations The following figure shows the connections for downloading firmware or a Reader configuration. Configuration Cable (Catalog No. 2755-NC48) 9 to 25 Pin Adapter may be required 9 Pin Male D Connector 4 Pin Female Circular Connector Personal Computer Configuration Port Connector (Has a protective cap) Note: The Series A Reader uses the 2755-NC43 programming cable. This cable is not compatible with the Series B Reader shown above.
Downloading Configurations Downloading Firmware 5–3 This section shows the procedure used to download new firmware to the AdaptaScan Bar Code Reader. Each Reader is shipped with factory default firmware. The software will prompt you if you need to download new firmware. Verify that your computer is connected to a Reader as shown on previous page. To download new firmware to a Reader: 1. Run the AdaptaScan software (Catalog No. 2755-ASN). 2. From the Project menu, choose Open or New.
5–4 Downloading Configurations Downloading a Configuration This section shows how to download a configuration to one or more Readers. Verify that your computer is connected to a Reader as shown on previous page. To download a configuration to a Reader: 1. Run the AdaptaScan software (Catalog No. 2755-ASN). 2. From the Project menu, choose Open. The Project Open dialog appears. Highlight Project 3. Select and open the project containing the configuration you want to download. 4.
Chapter 6 Troubleshooting and Maintenance Chapter Objectives This chapter describes how to isolate and correct the most common operating problems and perform routine maintenance tasks.
6–2 Troubleshooting and Maintenance Troubleshooting Chart Table 6.A Troubleshooting Chart Problem Probable Cause(s) Corrective Action(s) Reader does not power up. No LED indicators 1. Improper connection to power source. illuminate. 2. Power source not providing 12 to 28 VDC. 1. Check power source. No communications with personal computer. 1. Communications fault. 1. Check cable connection. 2. No power supply connection at DeviceNet connector 2. Power must be supplied. See Chapter 3. 3.
Troubleshooting and Maintenance LED Indicators Use the 7 LED indicators to isolate operating problems. Figure 6.1 LED Indicators On Symbol Condition Indication Yellow Bar code symbol is being scanned and decoded. Flashing Bar code symbol is being read at less than 100% rate. Off Not reading bar code symbol. Trigger/Read Condition Indication Yellow Decoder trigger is active. Green Valid bar code symbol read. Off No trigger or valid bar code symbol read.
6–4 Troubleshooting and Maintenance Network Condition Indication Green Normal DeviceNet operating state. Flashing Green Communication link established but no data transfer. Red DeviceNet communication fault detected. Flashing Red One or more DeviceNet devices are not responding. Reader may not be able to perform all configured functions. No DeviceNet communications established. Off Laser On Condition Indication Yellow The scan beam is On (active). Off The scan beam is Off (inactive).
Troubleshooting and Maintenance 6–5 Cleaning Scan Window ATTENTION: Other than cleaning the scan window, no user maintenance of the Reader is required. Do not open the enclosure! ! For optimum performance the scan window should be clean. ATTENTION: Only use reagent grade alcohol to clean the window. Do not use organic solvents. Do not use abrasive materials, such as disposable paper wipes to clean the scan window. Disposable wipes usually contain glass fibers which will scratch and cloud the window.
6–6 Troubleshooting and Maintenance Replacing Scan Window The scan window fits into an opening behind the front of the Reader. A bezel and gasket create a NEMA Type 4 seal. The table below lists numbers for ordering a glass or plastic window kit. Do not substitute other material for a damaged window. The windows have an optical coating necessary to Reader performance.
Troubleshooting and Maintenance 6–7 3. Remove the six #6-32 screws from the bezel/window assembly. 4. Carefully pull bezel/window assembly away from the front of the Reader. 5. Discard the old bezel/window assembly. To install the replacement scan window: 1. Do not smudge the window when removing the bezel/window assembly from package. If necessary, refer to page 6–5 for cleaning instructions. 2.
Appendix Specifications Electrical Voltage 11 to 28V DC Power 14 Watts maximum Mechanical Enclosure LED Indicators On Symbol Trigger Read Input / Output #1 Input / Output #2 Network Laser On Module Approximate Weight (Reader and Wiring Base) NEMA Type 4 (when used with properly sealed wiring base) Yellow Yellow/Green Yellow Yellow Green/Red Yellow Green/Red 4.6 lbs (2.1 kg) Dimensions Inches Millimeters 5.58 (H) x 7.14 (W) x 3.
A–2 Specifications Optical Light Source Visible Laser Diode (TE Cooled) Wavelength 660 nm Output Power 1.0 mW maximum Scan Rate (Nominal) Catalog No. 2755-SN3 Catalog No. 2755-SN5 Catalog No. 2755-SN8 300 Scans/Second 500 Scans/Second 800 Scans/Second Optical Scan Angles Catalog No. 2755-SN3 Catalog No. 2755-SN5 Catalog No.
Specifications A–3 Certifications UL Listing LISTED LISTED European Union Directive UL Listed UL Listed to Canadian safety standards Electromagnetic Compatibility Directive (89/336/EEC) EN 50081-2 Generic Emission Standard - Industrial Environment EN 50082-2 Generic Immunity Standard - Industrial Environment
Appendix B DIN Rail Mount Terminal Blocks This appendix lists Allen-Bradley DIN Rail Mount Terminal Blocks (with diodes, fuses and resistors) that are available for use with the input or output module applications described in Chapter 3. Refer to Publication 1492-1.0 for ordering and application information.
Appendix C European Union Directive Compliance Installation Requirements If this product is installed within the European Union or EFTA regions, the following regulations apply.
C–2 European Union Directive Compliance Declaration of Conformity
Glossary A ACK An ASCII control character used to acknowledge the reception and acceptance of a transmission block. address 1) A character string that uniquely identifies a memory location. 2) A character string that uniquely identifies the physical location of an input or output circuit. AIM Automatic Identification Manufacturers. alphanumeric The character set containing letters, numbers, punctuation marks and symbols. ANSI American National Standard Institute.
G–2 Glossary B bar The dark element of a printed bar code. bar code An array of parallel rectangular bars and spaces that together represent data elements or characters in a particular symbology. The bars and spaces are arranged in a predetermined pattern following unambiguous rules defined by the symbology. bar code density The number of characters which can be represented in a linear inch. bar code label A label that carries one or more bar code symbols and is suitable to be affixed to an article.
Glossary G–3 C capture count The number of consecutive identical valid decodes that result in a valid read. character One symbol of a set of symbols that normally includes both alpha and numeric codes plus punctuation marks and other symbols that may be read, stored, or written. character self-checking The feature which allows a bar code reader to determine if a scanned group of elements is a valid symbol character.
G–4 Glossary continuous code A bar code symbology where all spaces within the symbol are parts of the characters (Interleaved 2 of 5). There is no interactive gap in a continuous bar code symbology. CPI Characters per inch. See density. D data character See character. decode The process of translating a bar code into data characters using a specific set of rules for each symbology.
Glossary G–5 element width The thickness of an element measured from the edge closest to the symbol start character to the trailing edge of the same element. encoded area The total linear dimension consisting of all the characters of a code pattern, including start and stop characters and data. error A discrepancy between a computed, observed or measured value or condition and the true, specified or theoretically correct value or condition.
G–6 Glossary I inter-symbol no–read count The minimum number of no–reads that must occur between symbols scanned when Self–Triggered (continuous decode) is selected as the decode trigger. Symbols that are not preceeded by the minimum nuber of no–reads are ignored. intercharacter gap The space between two adjacent bar code characters in a discrete code (spaces between characters in Code 49).
Glossary G–7 find and replacement strings. There are both metacharacter search and replacement characters. misread A condition which occurs when the data output of a reader does not agree with the encoded data presented. modulo check digit or character A calculated character within a data field used for error detection. The calculated character is determined by a modulus calculation on the sum or the weighted sum of the data field contents. MTBF Mean Time Between Failure.
G–8 Glossary O orientation The alignment of bars and spaces to the scanner. Often referred to as Picket Fence or Step Ladder. output counter A counter that is associated with each output condition. The counter increments by 1 each time the condition occurs. P parity bit An additional non-data bit attached to a binary word to provide a check of the data integrity by making the sum of the number of ones in a word always even or odd. percent good reads The number of successful reads per refresh period.
Glossary G–9 Q quiet zone Spaces preceding the start character of a symbol and following the stop character. Sometimes called the clear area. R read A condition in which an entire package is decoded. reader A device comprised of a scanner and a decoder. RS-232C An EIA standard that specifies electrical, mechanical, and functional characteristics for serial binary communication circuits in a point-to-point link.
G–10 Glossary self-checking A bar code or symbol using a check algorithm which can be applied to each character to guard against undetected errors. Codes without self-checking may employ a check digit or other redundancy in addition to the data message. sensor A device that detects or measures something and generates a corresponding electrical signal to an input circuit of a controller. space The lighter element of a bar code formed by the background between bars.
Glossary G–11 symbology The conventions, or rules, which govern the formation of characters and strings of characters in a bar code symbol. symbology identifier An optional three character code which may prefix transmitted data from a bar code reader indicating the symbology read and any options enabled in the reader or special features of a symbology encountered (presence of FNC 1 in Code 128). T tag A collection of information associated with a single variable or I/O point.
G–12 Glossary X X dimension The nominal dimension of the narrow bars and spaces in a bar code symbol.
Index A accessories, 1–18 Apparent element width, 2–6 Applications, 1–5 distributed (master–slave), 1–6 distributed (peer–to–peer), 1–7 standalone, 1–5 Autofocus, 1–15 automatic focus, 1–15 manual, 1–15 preset, 1–15 B Baud rate,, DeviceNet network, 1–11 C Cable lengths, DeviceNet network, 1–11 Certifications, A–3 Chapter Descriptions, P–1 Comm Fault LED, 6–4 Communications DeviceNet network, 1–11 protocols, 1–13 RS–232, 1–13 RS–485/RS–422, 1–12 Configuration port connector, 1–3 D DeviceNet / Power termin
I–2 Index O On Symbol Indicator, 6–3 Operating environment, 1–4 Output module application, 3–20 Output Modules, Specifications, A–2 RS–232 communications, 1–13, 3–18 RS–232 terminal block, 1–9 RS–422 communications, 1–12 RS–422/RS–485 terminal block, 1–9 RS–485 communications, 1–12 network or point–to–point, 3–17 termination, 3–17 P Package detect terminal block, 1–10, 3–22 Picket Fence Orientation, 2–2 Pitch, 2–3 Power connections multiple readers (other power supply), 3–15 multiple readers (-PW46/PW47
Index U Usable beam width catalog no. 2755–SN3, 2–4 catalog no. 2755–SN5, 2–5 catalog no.
Code 39 HIGH DENSITY N BW MEDIUM DENSITY N 0 0 7 5 B W 0 2 0 LOW DENSITY N B W 0 HIGH DENSITY 3 0 MEDIUM DENSITY Code 128 NBW= 0 0 7 5 N B W = 0 2 0 LOW DENSITY N B W = 0 3 0 Interleaved 2 of 5 HIGH DENSITY MEDIUM DENSITY LOW DENSITY 0010 0 0 2 0 0 12345 67890 EAN–13 3 0 Universal Product Code VERSION A 0 0 5 VERSION E 0 European Article Number 123456 5 EAN–8 5012 3452 5 012345 678900 Pharma Code
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