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Cognex MVS-8000 Series Hardware Manual

Cognex MVS-8000 Series Hardware Manual

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Cognex MVS-8000 Series
MVS-8600 Hardware Manual
September 2012

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Summary of Contents for Cognex MVS-8000 Series

  • Page 1 Cognex MVS-8000 Series MVS-8600 Hardware Manual September 2012...
  • Page 2 Cognex Corporation. Portions of the hardware and software provided by Cognex may be covered by one or more of the U.S. and foreign patents listed below as well as pending U.S. and foreign patents. Such pending U.S. and foreign patents issued after the date of this document are listed on Cognex web site at http://www.cognex.com/patents.

  • Page 3: Table Of Contents

    Initial Setup for Camera Link Cameras ............19 Before you Begin ................... 20 Using the Cognex Camera Link Serial Communications Utility ..... 20 Load the Configuration File for Your Camera ........21 Connect to the Camera and Send the Configuration File ..... 22 Ongoing Setup for Camera Link Cameras ...........
  • Page 4 Contents I/O Connection Reference Tables ..............40 Chapter 2: MVS-8600 Hardware ................43 MVS-8600 Components ..................44 MVS-8600 Series Overview ................44 PCI Bus Interface ..................45 PCI Express Bus Interface ................45 Video Acquisition Interface ................46 Specifications ....................46 Support for I/O Devices ................
  • Page 5 Contents Programmable Line Output Circuitry ............74 I/O Connection Module Input Circuitry ............76 I/O Connection Module Output Circuitry ............77 I/O Connection Module Adds Conversion Delay .......... 77 Chapter 3: Using Encoders with Line Scan Cameras ..........79 Encoders and the MVS-8600 Series ..............79 Encoder Characteristics ................
  • Page 6 Contents MVS-8600 Hardware Manual...

  • Page 7: Preface

    Preface This manual describes the Cognex MVS-8600 series frame grabbers in the following chapters: Chapter 1, MVS-8600 Installation, describes how you configure and install an MVS-8600 series frame grabbers. Chapter 2, MVS-8600 Hardware, describes the MVS-8600 hardware, including environmental and power requirements, and its mechanical and electrical specifications.

  • Page 8: Style Conventions Used In This Manual

    Preface Style Conventions Used in This Manual This manual uses the style conventions described in this section for text and software diagrams. Text Style Conventions This manual uses the following style conventions for text: boldface Used for C/C++ keywords, function names, class names, structures, enumerations, types, and macros.

  • Page 9: Cognex Offices

    Preface Cognex Offices The following are the address and phone number of Cognex Corporate Headquarters, and the address of the Cognex web site: Cognex Corporation Corporate Headquarters Corporate Headquarters One Vision Drive Natick, MA 01760-2059 (508) 650-3000 Web Site http://www.cognex.com...
  • Page 10 Preface NOTES MVS-8600 Hardware Manual...

  • Page 11: Chapter 1: Mvs-8600 Installation

    MVS-8600 Installation This chapter describes how to install an MVS-8600 series frame grabber into your PC, how you connect cameras, and how you connect peripheral equipment such as triggers, strobes, or other I/O devices. Notes on Terminology Throughout this manual: •...

  • Page 12: Host Pc Requirements

    One available PCI Express card slot that will support an x4 board. • One available CD-ROM drive (or access to one over a network) to install the Cognex software. Additional requirements may be imposed by your Cognex software package. Check the Cognex software’s release notes or Getting Started manual for the software’s...

  • Page 13: Installing The Mvs-8600

    MVS-8600 Installation Installing the MVS-8600 This section describes the steps to prepare for installation and to install an MVS-8600 frame grabber. The following section describes how to select and install an MVS-8601 or MVS-8602 frame grabber in a PC with a PCI or PCI-X bus. See Selecting an MVS-8602e PCIe Slot on page 16 for a description of installing an MVS-8602e in a PC with a PCI Express bus.

  • Page 14: Pci Bus Speed

    MVS-8600 Installation MVS-8601 and MVS-8602 boards are designed with a 64-bit data path so when you plug an MVS-8601 or MVS-8602 into a 32-bit PCI slot some of the pins are not used. The unused pins hang out over the end of the connector. See Figure 2. Pin 1 Pin 1 32-bit card connector...

  • Page 15: The Pci-X Bus

    MVS-8600 Installation The PCI-X Bus The PCI-X bus was introduced to address some of the PCI bus limitations and to support the higher performance requirements of newer computers. All PCI-X card slots are 64-bits wide although the bus will accommodate 32-bit operation for boards using that design.

  • Page 16: Understanding Bus Bandwidth

    MVS-8600 Installation Understanding Bus Bandwidth When evaluating whether a particular slot configuration will meet your application’s bandwidth requirements, you should keep the following in mind: • The Sustainable bus bandwidth reflects the total amount of data that can be transmitted per second for a running system. •...

  • Page 17: Installation Steps

    Some PC motherboards support x4 speed for x4 cards connected Note to x8 or x16 slots, but other motherboards drop to x1 speed. Cognex recommends that you place the MVS-8602e in an x4 slot. If you need to use an x8 or x16 slot, consult the BIOS manufacturer’s documentation to determine whether the BIOS supports x4 or x1 operation under these conditions.
  • Page 18 SATA adapter supplied with your MVS-8600, as shown in Figure 5. SATA power connector MVS-8600 SATA adapter Cognex cable 185-1193R Figure 5. SATA adapter and power adapter cable If your PC uses faceplate screws, replace the faceplate screw to anchor the frame grabber so that it does not loosen when attaching and removing cameras.

  • Page 19: Configuring Cameras

    MVS-8600. If you acquire your cameras elsewhere, you must configure them yourself as described in this section. This section provides the steps to set up a Camera Link camera using the Cognex Camera Link Serial Communication Utility. MVS-8600 Hardware Manual...

  • Page 20: Before You Begin

    Before attempting to configure your Camera Link camera, you must perform the following steps: Install an MVS-8600 frame grabber in your PC Install a Cognex software product that supports your MVS-8600. Make sure that you install the Cognex drivers supplied with your software product. Restart your PC.

  • Page 21: Load The Configuration File For Your Camera

    Cognex supplies one or more Camera Link configuration files (.clc files) for each supported camera (there is typically one CLC file for each supported video format). The CLC files are installed in the same directory as the Cognex Camera Link Serial Communications Utility, \Program Files\Cognex\VisionPro\cogclser for VisionPro and \Program Files\Cognex\CVL\cogclser for CVL.

  • Page 22: Connect To The Camera And Send The Configuration File

    OK to exit the utility. Ongoing Setup for Camera Link Cameras In addition to establishing the correct initial configuration for a Camera Link camera, you can also use the Cognex Camera Link Configuration Utility to adjust your camera’s settings after installation. MVS-8600 Hardware Manual...

  • Page 23: Custom Camera Link Setup Information

    You can also look through the comments in your camera’s CLC file for suggested commands. You can use the Cognex Camera Link Configuration Utility to change configuration parameters interactively, and you can use the utility to create, save, and load command files.

  • Page 24: Connecting Cameras

    +12 V power supply lines and two ground returns. As described in the section Determining if Your MVS-8602e Supports PoCL on page 27, newer MVS-8602e boards support the use of PoCL. If you are using a PoCL camera equipped with a MiniCL connector, use this Cognex cable: •...

  • Page 25: Mvs-8602 And Mvs-8602E Base Configuration Camera Connections

    Link cameras. • Connect a single area scan camera to either camera port. Cognex recommends using camera port 0 first, but this is for clarity when using Cognex software, not a requirement of the hardware. • Connect a single line scan camera only to camera port 0.

  • Page 26: Supplying Camera Power

    MVS-8600 Installation Ports on the MVS-8602e are labeled P1 (camera port 1) and P2 (camera port 0). The lower ranking connector on the camera must be connected to MVS-8602e port 0, and the higher ranking camera connector must be connected to MVS-8602e port 1. See the example in Figure 7 below.
  • Page 27 MVS-8600 Installation To use PoCL you need a PoCL camera that expects to get +12 V power from the camera cable, a PoCL camera cable and a PoCL frame grabber. You must provide external +12V power to the MVS-8602e through Note the P8 connector as described in the section Installation Steps on page 17 to use PoCL.
  • Page 28 MVS-8600 Installation In general, you can safely use a mixed configuration of PoCL and Warning non-PoCL cameras, as long as you shut the PC down before connecting or disconnecting the cameras. If you attempt to change from a PoCL to non-PoCL camera (or from a non-PoCL to a PoCL camera) while the PC is powered on, you may damage the MVS-8602e.

  • Page 29: Connecting Parallel I/O Devices

    Connect such devices to the programmable opto-isolated input or output lines that originate on board connectors P4 or P6. To bring the P4/P6 signals to the PC’s back panel, connect the I/O extension cable (Cognex part number 300-0240) to P4, or P6, or both.
  • Page 30 Figure 15 on page 50 (MVS-8601 and MVS-8602) and Figure 16 on page 51 (MVS-8602e). For your convenience, Cognex provides the General-Purpose I/O Kit, which includes two 300-2040 I/O extension cables with faceplates, two DB-25 extension cables, and two 25-pin terminal blocks.

  • Page 31: Loadable Software I/O Configurations

    MVS-8600 Installation Loadable Software I/O Configurations The MVS-8600 supports different combinations of trigger, strobe, and encoder pinouts, depending on the currently loaded software I/O configuration. See your Cognex software package’s documentation to learn how to load I/O configurations onto the MVS-8600.

  • Page 32: Specifying The I/O Software Option

    MVS-8600 Installation Specifying the I/O Software Option For VisionPro, you specify the I/O software option by specifying the following options in the visionpro.ini file: IOConfig = LVDS (*Default) IOConfig = TTL IOConfig = DualLVDS For CVL, I/O options 1, 2, and 3 are associated with the following classes: ccIO8600LVDS (*Default) ccIO8600TTL ccIO8600DualLVDS...
  • Page 33 MVS-8600 Installation Opto-isolated Trigger Trigger STROBES / TRIGGERS COGNEX TTL 1 TTL 0 OPTO 0 OPTO 1 +12v TO+ T0- T1+ T1- Power Supply +12V POWER OUTPUT STRB/TRIG0 STRB/TRIG1 STROBE 0 TRIGGER 0 STROBE 1 TRIGGER 1 (+5V and +5V POWER OUTPUT...

  • Page 34: Triggers For I/O Option 3

    MVS-8600 Installation Triggers for I/O Option 3 For I/O option 3, all the pins on the I/O connection module are devoted to encoder connections. In this case, connect the I/O extension cable (300-0240), and optionally a terminal block (195-0330) from the General-Purpose I/O Kit, to the frame grabber’s P4 connector, and connect the trigger device’s wires as shown in Figure 12 and described in Table 5.

  • Page 35: Connecting Strobes

    Table 6. Strobe wiring for I/O options 1 and 2 Signal names are explained in MVS-8600 Signal Names on page 61. Opto-isolated Strobe Strobe STROBES / TRIGGERS COGNEX TTL 1 TTL 0 OPTO 0 OPTO 1 +12v TO+ T0- T1+ T1-...

  • Page 36: Connecting Encoders For Line Scan Cameras

    MVS-8600 Installation Connecting Encoders for Line Scan Cameras The MVS-8600 supports both LVDS differential encoders and TTL open collector encoders for use with line scan cameras. Chapter 3 provides an overview of encoders, while Table 11 on page 40 and Table 12 on page 41 detail the specific encoder types supported by the MVS-8600.

  • Page 37: Programmable Input Lines

    MVS-8600 Installation Programmable Input Lines To connect I/O devices to one or more programmable input lines, first connect an I/O extension cable (part number 300-0240), and optionally a DB-25 extension cable (185-0334) and terminal block (195-0330), to the frame grabber’s P4 and/or P6 connector.

  • Page 38: Programmable Output Lines

    MVS-8600 Installation Programmable Output Lines To connect I/O devices to one or more programmable output lines, first connect an I/O extension cable (part number 300-0240), and optionally a DB-25 extension cable (185-0334) and terminal block (195-0330), to the frame grabber’s P4 and/or P6 connector.
  • Page 39 MVS-8600 Installation P4 Pin (DB-25 P6 Pin (DB-25 and terminal and terminal Signal Name block) block) Notes Table 10. DB-25 connection for opto-isolated output lines You must supply 5 to 24 V input power to the appropriate TAP24V line. Use an external power source to take maximum advantage of the opto-isolation circuitry’s signal isolation.

  • Page 40: I/O Connection Reference Tables

    MVS-8600 Installation I/O Connection Reference Tables Table 11 summarizes the I/O connection options, sorted by desired camera and encoder type. You want to connect ... Use these settings Ports on I/O Module Prog 8601 8602 Encoder Cable to Trigger, Opto config Cameras type...
  • Page 41 MVS-8600 Installation Table 12 shows the same information, sorted by I/O configuration type. Configuration Connection Options (AS=area scan, LS=line scan) Ports on I/O Module Prog. 8601 8602 Cable to Trigger, opto config I/O box Camera Encoder Trig port port Strobe Encoder pairs ...
  • Page 42 MVS-8600 Installation MVS-8600 Hardware Manual...

  • Page 43: Chapter 2: Mvs-8600 Hardware

    MVS-8600 Hardware This chapter describes the hardware for the Cognex MVS-8600 family of frame grabbers. This chapter contains the following sections: • MVS-8600 Components on page 44 describes the components that make up the MVS-8600. • Mechanical Specifications on page 50 provides a physical description of the MVS-8600, including information about mechanical layout, environmental requirements, and safety standards.

  • Page 44: Mvs-8600 Components

    MVS-8602e Figure 14. MVS-8600 overview The MVS-8600 series frame grabbers are different from other Cognex frame grabbers in that they support only the Camera Link communications interface, a special digital high speed serial link between a frame grabber and a digital camera. A special frame grabber, cable and camera are required to use the Camera Link connection.

  • Page 45: Pci Bus Interface

    MVS-8600 Hardware versions) will also run on 8602e (PCIe versions) but must first be recompiled. Programs written for the 8602e that use new enhanced functionality will run on the 8602 but any software executing enhanced functionality is ignored. The following table describes the functional differences between the MVS-8601/MVS-8602 and the MVS-8602e.

  • Page 46: Video Acquisition Interface

    Some PC motherboards support x4 speed for x4 cards connected Note to x8 or x16 slots, but other motherboards drop to x1 speed. Cognex recommends that you place the MVS-8602e in an x4 slot. If you need to use an x8 or x16 slot, consult the BIOS manufacturer’s documentation to determine whether the BIOS supports x4 or x1 operation under these conditions.
  • Page 47 MVS-8600 Hardware PCI bus PCI Express Bus Feature MVS-8601 MVS-8602 MVS-8602e Bus interface options 66 MHz operation in 64-bit (long) PCI Any x4 PCIe slot or any x8 or x16 slot slots or PCI-X slots. that is x4-compatible 33 MHz operation in standard 32-bit (short) PCI slots (Board extends past end of slot) Bus transfer rate...
  • Page 48 MVS-8600 Hardware PCI bus PCI Express Bus Feature MVS-8601 MVS-8602 MVS-8602e Number of 8 inputs, 8 outputs 8 inputs, 8 outputs or 6 inputs, 6 outputs or 6 inputs, 6 outputs programmable I/O lines (depends on I/O configuration loaded) Programmable I/O line Opto-isolated Opto-isolated connection type...

  • Page 49: Support For I/O Devices

    MVS-8600 Hardware PCI bus PCI Express Bus Feature MVS-8601 MVS-8602 MVS-8602e Class A Class A Class A, RoHS Compliant Class A, RoHS Compliant Table 14. Specifications for the MVS-8600 series Support for I/O Devices MVS-8600 series frame grabbers communicate with devices such as strobes, triggers, encoders, sensors, LEDs, and programmable controllers over parallel signal interface lines.

  • Page 50: Mechanical Specifications

    MVS-8600 Hardware Mechanical Specifications This section describes the mechanical layout, connectors, environmental requirements, and shipment packaging for the MVS-8600 series frame grabbers. Component Diagrams The MVS-8601 and MVS-8602 cards are short length PCI cards, measuring 6.6 x 4.2 inches (168 x 107 mm), and occupying a single PCI bus slot. The MVS-8602e is a short length PCI Express card measuring 6.6 x 4.2 inches (168 x 107 mm), and occupying a single PCI Express x4 slot.

  • Page 51: Connector Summary

    It is intended to be used with a Cognex parallel I/O cable connecting to the Cognex I/O Connection Module (part number 800-5885-1), as described in Hirose HR10 Connector P3 on page 62.

  • Page 52: Jumper Summary

    Hirose HR10 connector. One or both of these headers can be connected to Cognex I/O cable 300-0240 to carry its signal lines to the PC’s back panel. Jacks P4 and P6 are described beginning in 26-Pin IDC Connector P4 on page 63.

  • Page 53: Shipping

    MVS-8600 Hardware Shipping All MVS-8600 frame grabbers are shipped in protective packaging and antistatic bags. Save all packing materials in case you need to ship your board to another location. MVS-8600 Hardware Manual...

  • Page 54: Standards Compliance

    • EN61000-4-8:1998 • EN61000-4-11:1994 MVS-8600 series frame grabbers are in conformance with the following Council Directive on electromagnetic emissions: • EN61000-3-2:2000 • EN61000-3-3:2000 The manufacturer of the MVS-8600 is: Cognex Corporation One Vision Drive Natick, MA 01760 MVS-8600 Hardware Manual...

  • Page 55: Electrical Specifications

    MVS-8600 Hardware The European representative is: Cognex France Immeuble Le Patio 104 Avenue Albert 1er 92563 Rueil Malmaison France Electrical Specifications This section describes the electrical specifications of the MVS-8600 series, including power requirements and signal descriptions. Power Requirements MVS-8600 boards draw +5 V power from the PCI bus or PCI Express bus. Current draw is up to 3.0 A.

  • Page 56: Mvs-8601 And Mvs-8602 Power Selection Jumpers

    V_CAM1 Figure 17. Default settings for MVS-8601 and MVS-8602 S1 and S2 Caution When using the Cognex I/O connection module (part number 800-5885-1), jumpers S1 and S2 must remain in their factory default positions. The following table shows the meanings of the jumper setting positions.

  • Page 57: Jumpers S3-S10

    MVS-8600 Hardware When using the Cognex I/O connection module (part number Caution 800-5885-1), jumpers S1 and S2 must remain in their factory default positions. The following table shows the meanings of the jumper setting positions. Jumper over +5 Jumper over +12...

  • Page 58: Dip Switches

    MVS-8600 Hardware DIP Switches There is a two-position DIP switch at location U26 for the MVS-8601 and MVS-802 and at location U100 for the MVS-8602e. This switch is used for factory diagnostics and should not be changed from the default (OFF) setting. Camera Connector Cameras are attached to MVS-8600 frame grabbers through one or two 26-pin MDR high-density Mini-D connectors on the faceplate.
  • Page 59 MVS-8600 Hardware Signal Name Signal Name Signal Name X0– CC3– SerTC+ CC3+ X1– SerTC– CC4+ SerTFG– CC4– X2– SerTFG+ Inner shield or +12V return (PoCL) CC1– Inner shield or +12V power (PoCL) XCLK– CC1+ Table 16. Pinout for Camera Link camera connectors, by signal name Table 17 provides the pinout of the camera connector in pin number order.

  • Page 60: Camera Cables

    MVS-8600 Hardware Camera Cables If your Camera Link camera uses a standard MDR-26 Camera Link connector and does not use PoCL power source, use one of the following Cognex cables to connect an MVS-8600 camera port to your camera: •...

  • Page 61: Mvs-8600 Signal Names

    26-pin IDC headers on the MVS-8600 main board labeled P4 and P6. The following sections describe these parallel I/O signals. MVS-8600 Signal Names MVS-8600 signal names are described in this manual and in Cognex software documentation using the following code. Code...

  • Page 62: Hirose Hr10 Connector P3

    The Hirose HR10-10R-12S connector on the faceplate carries trigger, strobe, and encoder signals, as well as camera power and ground lines. This connector is designed to be used with a Cognex cable connecting to the I/O Connection Module, part number 800-5885-1.

  • Page 63: 26-Pin Idc Connector P4

    MVS-8600 Hardware Table 19 below shows the pinout of this connector, and shows where the same signals are found on the P4 and P6 connectors. Table 19 is for cable reference only. Pin on Hirose Same Signal on Same Signal on Signal Name HR10 this pin of P4...
  • Page 64 MVS-8600 Hardware Figure 22 shows the pin numbering of the P4 and P6 connectors. Top of board Figure 22. Pin numbering of the P4 and P6 connectors Connect wires from devices to the DB-25 connector on cable 300-0240, and optionally a terminal block (195-0330) from the General-Purpose I/O Kit, as described in Connecting Parallel I/O Devices on page 29.

  • Page 65: 26-Pin Idc Connector P6

    MVS-8600 Hardware Pin on DB-25 of 300-0240 and Pin on 195-0330 terminal Same signal also found Signal Name block on this pin NC - Do Not Use +V_CAM1 Hirose 11 Hirose 1, 10 OPTO_OUT_2+ OPTO_OUT_3+ OPTO_OUT_2– OPTO_OUT_3– OPTO_IN_2_3+ Hirose 5 OPTO_IN_2–...
  • Page 66 MVS-8600 Hardware Table 21 below shows the pinout of the P6 connector in pin number order, and shows where the same signals are found on the Hirose HR10 connector. Table 21 is for cable reference only. Pin on DB-25 of 300-0240 and 195-0330 terminal Same signal also Signal Name...

  • Page 67: Line Numbering

    MVS-8600 Hardware Pin on DB-25 of 300-0240 and 195-0330 terminal Same signal also Signal Name on P6 block found on this pin Notes OPTO_OUT_7– OPTO_IN_6_7+ T0 or B1 Hirose 8 OPTO_IN_6– T1 or B1’ Hirose 9 MVS-8602/ MVS-8602e only OPTO_IN_7– Not connected Hirose 1, 10 Table 21.

  • Page 68: I/O Connection Module For The Mvs-8600

    MVS-8600 Hardware I/O Connection Module for the MVS-8600 Use the I/O connection module, part number 800-5885-1, to connect device wires from triggers, strobes, and encoders to the MVS-8600. Capabilities of the I/O connection module include: • Provides wire connection terminals providing +5 V and +12 V power drawn from the MVS-8600 at up to 1.0 A.

  • Page 69: Specifications For The I/O Connection Module

    MVS-8600 Hardware The DB-25F connector provides a connection from the MVS-8600 through one of the Cognex cables listed in Table 23 on page 70. Specifications for the I/O Connection Module Table 22 lists the mechanical and electrical specifications for the I/O connection module, part number 800-5885-1.

  • Page 70: Cables From Mvs-8600 To I/O Module

    The cable you use to connect the Hirose port to the I/O connection module corresponds to the currently loaded software I/O configuration, as described in Loadable Software I/O Configurations on page 31. Table 23 summarizes the I/O configuration options and corresponding cables. Cognex Software Camera and Encoders I/O Module Jacks...

  • Page 71: Wiring Devices To The I/O Connection Module

    Figure 24 shows the layout of the top panel of the I/O connection module, and illustrates the terminal labels. The signal name abbreviations are explained in Table 18 on page 61. STROBES / TRIGGERS COGNEX TTL 0 TTL 1 OPTO 0 OPTO 1...
  • Page 72 MVS-8600 Hardware I/O Config Jack Option Connection Supplies +12 V power for cameras at up to 1.0 A drawn from the MVS-8600. Connect a wire to chassis ground. Connect encoder channels A and B for TTL encoders associated with line scan cameras on both camera ports. 1, 2 TTL wiring point to connect trigger input and strobe output for both camera ports.

  • Page 73: Circuit Logic Diagrams

    MVS-8600 Hardware Circuit Logic Diagrams This section provides circuit diagrams and descriptions illustrating how to wire parallel I/O devices to the MVS-8600. Programmable Line Input Circuitry Figure 25 illustrates the connection of input devices to the opto-isolated input circuitry for the programmable lines OPTO_IN_0 through OPTO_IN_7. These lines are present on the P4 and P6 jacks of the MVS-8600, and are brought out to the host PC’s back panel with cable 300-0240.

  • Page 74: Programmable Line Output Circuitry

    MVS-8600 Hardware P4’s 300-0240 P6’s 300-0240 Signal Name Pin on DB-25 Pin on DB-25 Notes OPTO_IN_3– OPTO_IN_4_5+ OPTO_IN_4– OPTO_IN_5– OPTO_IN_6_7+ OPTO_IN_6– OPTO_IN_7– Table 25. Grouping of opto-isolated input lines The first four input pairs (lines 0 through 3) are on the P4 connector. The second four input pairs (lines 4 through 7) are on the P6 connector.
  • Page 75 MVS-8600 Hardware The collector (+) pin for each line has a pull-up resistor to the TAP24V_n-n common rail for each group of four lines, which must be connected to the desired operational voltage between 5 and 24 V. Supply a source of 5 to 24 volt power to the appropriate TAP24V_n-n line.

  • Page 76: I/O Connection Module Input Circuitry

    MVS-8600 Hardware P4’s 300-0240 P6’s 300-0240 Signal Name Pin on DB-25 Pin on DB-25 Notes Table 26. Pin numbers of opto-isolated output lines I/O Connection Module Input Circuitry Figure 27 shows a typical input schematic to help you determine how to wire your trigger input devices to the opto-isolated Tn+ and Tn–...

  • Page 77: I/O Connection Module Output Circuitry

    MVS-8600 Hardware I/O Connection Module Output Circuitry Figure 28 shows a typical output schematic to help you determine how to wire strobe output devices to the opto-isolated Sn+ and Sn– pins of the J8 and J10 jacks of the I/O connection module.
  • Page 78 MVS-8600 Hardware MVS-8600 Hardware Manual...

  • Page 79: Chapter 3: Using Encoders With Line Scan Cameras

    Using Encoders with Line Scan Cameras An encoder is an electromechanical transducer that converts rotary or linear motion into electrical signals. Encoders are used to determine speed, velocity, distance, position, or direction. Examples of encoder types vary widely, and include equipment as different as an airplane’s altimeter or a computer’s trackball.

  • Page 80: Encoder Characteristics

    Using Encoders with Line Scan Cameras Encoder Characteristics The design of your vision system will determine the most appropriate encoder type for your application. In general, the encoder type most useful for the machine vision component of a factory automation system is likely to be a dual-channel quadrature incremental rotary encoder.
  • Page 81 <50m <10m ‡ Not fully tested or verified by Cognex on the MVS-8600 Table 27. Specifications and standards The MVS-8600 I/O interface is multi-purpose and encompasses LVDS, RS-422, and TTL standards, but provides over voltage protection, without opto-isolation, through the use of a +5 V clamp on the signal interface.
  • Page 82 Using Encoders with Line Scan Cameras Additionally, the interface offers the benefits of operating in differential signal mode (a positive and negative signal pair) to increase noise immunity and the signal to noise ratio (SNR), while reducing the effects of glitches and ground bounce in noisy electrical environments.

  • Page 83: Connecting Encoders

    Connecting Encoders If your application will use encoder-triggered image acquisition, then you must set up your Cognex software package to be aware of the characteristics of your encoder hardware. Your encoder vendor’s documentation provides your encoder’s basic characteristics, such as the number of encoder cycles per revolution. Your Cognex software package’s documentation includes formulas and examples for translating the...

  • Page 84: Relationship Between Encoder And Camera Channels

    Encoder Support Varies With I/O Configuration Loaded Your Cognex software package provides a method to load different I/O configurations. The loaded configuration determines the number and type of encoders supported. Loadable I/O configurations are discussed in your Cognex software package’s documentation and in Loadable Software I/O Configurations on page 31.

  • Page 85: Index

    18 electrostatic discharge can damage 17 chip set 12 circuit diagram humidity 52 external I/O module, inputs 76 external I/O module, outputs 77 Cognex Corporation headquarters address 9 web site address 9 I/O connection module 71 MVS-8600 Hardware Manual...
  • Page 86 11, 49, 67 interface 45 PCI Express bus interface 45 Pentium 12 pin numbering VIA 12 camera input port 58 pinout camera input port 58 PoCL 26, 55 web site PolySwitch fuse Cognex Corporation 9 resetting 57 MVS-8600 Hardware Manual...

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