LPCI-/USB-3488A, PXI-3488 IEEE488 GPIB Interface Card Series User’s Manual Manual Rev. 2.02 Revision Date: May 23, 2009 Part No: 50-17023-3010 Advance Technologies; Automate the World.
Copyright 2009 ADLINK TECHNOLOGY INC. All Rights Reserved. The information in this document is subject to change without prior notice in order to improve reliability, design, and function and does not represent a commitment on the part of the manufacturer. In no event will the manufacturer be liable for direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the product or documentation, even if advised of the possibility of such damages.
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Table of Contents 1 Introduction ........................................................................ 1 1.1 1.2 1.3 1.4 Overview.............................................................................. 1 Performance ................................................................... 1 Compatibility ................................................................... 2 Features............................................................................... 3 LPCI-3488A ............................
3.1 3.2 ii Connection Configuration .................................................. 27 Data Lines ..................................................................... 29 Handshake Lines .......................................................... 29 System Management Lines .......................................... 29 Block Diagram.................................................................... 30 ADLINK GPIB Interface Cards Block Diagram .............
List of Tables Table Table Table Table 1-1: 1-2: 1-3: 3-1: List of Tables Power Requirements, LPCI-3488A .......................... 6 Power Requirements, PXI-3488 ............................... 6 Power Requirements, USB-3488A ........................... 6 GPIB Bus ................................................................
List of Figures Figure 2-1: Figure 2-2: Figure 2-3: Figure 2-4: Figure 2-5: Figure 2-6: Figure 2-7: Figure 2-8: Figure 2-9: Figure 3-1: Figure 3-2: Figure 3-3: iv PCB Layout of the LPCI-3488A ............................... PCB Layout of the PXI-3488.................................... Layout of the USB-3488 .......................................... LPCI-3488A Linear Connection Configuration......... LPCI-3488A Star Connection Configuration ............ PXI-3488 Linear Connection Configuration ..........
1 Introduction 1.1 Overview ADLINK’s LPCI-/USB-3488A and PXI-3488 GPIB controller interface cards are fully compatible with the IEEE488.2 instrumentation control and communication standard and are capable of controlling up to 14 stand-alone instruments via IEEE488 cables. The LPCI-3488A and USB-3488A are designed to meet the requirements for high performance and maximum programming portability.
1.1.2 Compatibility ADLINK’s GPIB interface solutions are delivered with complete software support, including a driver API set that is fully binary compatible with NI1’s GPIB-32.DLL. All programs written based on the GPIB-32.DLL library can be executed with LPCI-/USB-3488A or PXI-3488 without any modification. VISA library is also supported to ensure compatibility with applications utilizing VISA.
1.2 Features 1.2.1 LPCI-3488A The LPCI-3488A IEEE 488 GPIB interface card provides the following advanced features: Fully compatible with the IEEE 488 standard Up to 1.5 MB/s data transfer rates Built-in 2 KB FIFO for read/write operations Provides APIs compatible with NI-488.21 driver software Supports industrial-standard VISA Library Interactive utility for testing and diagnostics Fully low-profile MD1 PCB compliant 1.2.
1.2.3 USB-3488A The USB-3488A IEEE 488 GPIB interface card provides the following advanced features: 4 Fully compatible with the IEEE-488 standard Easy GPIB connectivity and GPIB connections for laptop computer Plug and Play interface; No GPIB cable required for instrument connection APIs compatible with NI-488.2 driver software Fully IEEE 488.1 and 488.
1.3 Specifications 1.3.1 GPIB Bus Properties Up to 14 instruments can be connected to one controller Maximum 1.5 MB/s data transfer rate Cable length 2 meters between each instrument (suggested) 20 meters total cable length Data transfer mode: 8 bits parallel Handshake: 3 wire handshake, reception of each data byte is acknowledged 1.3.
1.3.
1.4 Software Support The ADLINK LPCI-/USB-3488A and PXI-3488 GPIB interface cards provide a device driver package: ADL-GPIB for Windows 98/2000/XP/Vista. The AD-GPIB driver package also provides a diagnostic utility to test GPIB interface cards, as well as programming samples and source code examples for Microsoft Visual C++. The ADL-GPIB driver package can be found in the included All-in-one CD. Please refer to the Software Installation section (2.
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2 Installation This chapter outlines the contents of package, describes unpacking information, and describes how to install the hardware and software. 2.1 Contents of Package 2.1.1 LPCI-3488A The LPCI-3488A includes the following items: LPCI-3488A An additional low-profile bracket ADLINK GPIB Driver CD This User’s Manual 2.1.2 PXI-3488 The PXI-3488 includes the following items: PXI-3488 ADLINK GPIB Driver CD This User’s Manual 2.1.
2.2 Unpacking Both the LPCI-/USB-3488A and PXI-3488 contain electrostatic sensitive components that can be easily be damaged by static electricity. Therefore, these modules should be handled on a grounded antistatic mat. The operator should be wearing an anti-static wristband, grounded at the same point as the anti-static mat. Inspect the module for obvious damage. Shipping and handling may cause damage to the module. Be sure there is no shipping and handling damage on the module before continuing.
2.3 Mechanical Drawing 2.3.
2.3.2 PXI-3488 Figure 2-2: PCB Layout of the PXI-3488 The ADLINK PXI-3488 is packaged in a Eurocard form factor compliant with the PXI Specification and measuring 160 mm in length and 100 mm in height (not including connectors). The IEEE488 standard 24-pin connector is located at the front panel and the J1 IEC connectors in the rear are used to link the chassis backplane.
2.3.3 USB-3488A Figure 2-3: Layout of the USB-3488 The ADLINK USB-3488A is assembled with top and bottom cases, The USB-3488A GPIB interface provides a direct connection between the USB port on a desktop and laptop computer to GPIB instrumen. With the USB-3488A GPIB interface and its USB Plug and Play feature, GPIB instruments can be connected and disconnected without having to shut down the computer. No external power supplies are necessary.
2.4 PCI Configuration 2.4.1 Plug and Play As a plug-and-play component, the card requests an interrupt number via its PCI controller. The system BIOS responds with an interrupt assignment based on the card information and on known system parameters. These system parameters are determined by the installed drivers and the hardware is acknowledged by the system. 2.4.2 Configuration Board configuration is accomplished on a board-by-board basis for all PCI/PXI boards in the chassis.
2.5 Hardware Installation 2.5.1 LPCI-3488A Installation Procedures Please follow the instructions to install LPCI-3488A in your system. 1. Turn off the computer 2. Turn off all accessories (printer, modem, monitor, etc.) connected to the computer. 3. Open the computer case. 4. Select a 32-bit PCI slot. PCI slots are shorter than ISA or EISA slots, and are usually white or ivory. 5. Before handling the PCI cards, discharge any static buildup on your body by touching the metal case of the computer.
2.5.2 PXI-3488 Installation Procedures Please follow the instructions to install the PXI-3488 into your PXI chassis. 1. Turn off the system. 2. Align the module’s edge with the card guide in the PXI chassis. 3. Slide the module into the chassis, until resistance is felt from the PXI connector 4. Push the ejector upwards and fully insert the module into the chassis. 5. Once inserted, a “click” can be heard from the ejector latch. 6. Tighten the screw on the front panel.
2.5.4 Cabling The following connection configuration can ensure that the GPIB throughput achieves optimal performance. These configurations include the number of instruments and cable distances: Cable lengths should be no longer than 4 meters (2 meter lengths maximum is suggested). The total GPIB BUS distance should be less than 20 meter. The total number of devices must less than 15 (including computer itself), and at least two-thrids (2/3) of the devices are powered on.
Figure 2-5: LPCI-3488A Star Connection Configuration Figure 2-6: PXI-3488 Linear Connection Configuration 18 Installation
Figure 2-7: PXI-3488 Star Connection Configuration Figure 2-8: USB-3488A Linear Connection Configuration Installation 19
Figure 2-9: USB-3488A Star Connection Configuration 20 Installation
2.6 Software Installation ADLINK GPIB interface cards are delivered with an ADL-GPIB driver package for Windows 98/2000/XP/Vista. The ADL-GPIB is designed to be fully compatible with your current applications and includes APIs and a binary-compatible gpib-32.dll for users using LabVIEW1, LabWindow/CVI2, VC++, VB, and Delphi. ADLINK GPIB interface cards also adequately support VISA to work with most available instrument drivers. Please visit the ADLINK website (www.adlinktech.
3.
2.6.2 Using the ADLINK GPIB Utility The ADL-GPIB driver package also provides an “ADLINK GPIB Utility” utility program to diagnose and verify GPIB connections. It is located on the GPIB Driver: x:\ADLINK\ADL-GPIB\Utility\GPIB Utility.exe. 1. Launch GPIB Utility.exe. A window appears to show all installed GPIB interfaces and instruments 2. Click on a GPIB interface (GPIB0, GPIB1, etc.) and select “Setting” > “GPIB Preference”.
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3. Double click on a connected GPIB instrument. A ‘”GPIB Interactive control” dialog appears to allow write command strings to be inputted into the GPIB instrument and read the result.
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3 Operation Theory This chapter describes the operation theory of GPIB bus and the basic architecture of ADLINK’s GPIB interface cards. 3.1 Connection Configuration The GPIB bus has 24 lines which are divided into 16 signal lines and 8 ground return or shield drain lines. The 16 signal lines can be divided into 8-bit parallel data transfer bus and 8 control lines. The 8 control lines contain 5 system management lines and 3 handshake lines.
GPIB BUS Type Function Pin No.
3.1.1 Data Lines DIO1 to DIO8 carry both data and command messages. All commands and most data use 7-bit ASCII codes, the 8th bit, DIO8, is either unused or used as a parity check. 3.1.2 Handshake Lines Three handshake lines control the transfer of data/messages between devices.
3.2 Block Diagram 3.2.1 ADLINK GPIB Interface Cards Block Diagram ADLINK’s LPCI-3488A and PXI-3488 GPIB interface cards include a 2 KB FIFO inside the FPGA IP to maximize data transfer rates. Its state-of-the-art state machine in the CPLD coordinates the data flow between the PCI controller, FIFO and GPIB bus.
3.2.2 ADLINK USB-3488A GPIB Interface Block Diagram The ADLINK USB-3488A GPIB interface include a 32 KB FIFO to maximize data transfer rates. Its state-of-the-art state machine in the the 8051 coordinates the data flow between the USB Bus, FIFO and GPIB bus.
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