VMIC VMIVME-4122 Product Manual
VMIVME-4122
8-channel 12-bit Ana log Output Board
Product Manual
(256) 880-0444
12090 South Memorial Parkway
Huntsville, Alabama 35803-3308, USA
w (800) 322-3616 w Fax: (256) 882-0859
500-004122-000 Rev. E
COPYRIGHT AND TRADEMARKS
© Copyright 2003. The information in this document has been carefully checked and is believed to be entirely reliable.
While all reasonable efforts to ensure accuracy have been taken in the preparation of this manual, VMIC assumes no
responsibility resulting from omissions or errors in this manual, or from the use of information contained herein.
VMIC reserves the right to make any changes, without notice, to this or any of VMIC’s products to improve reliability,
performance, functi on, or design.
VMIC does not assume any liability arising out of the application or use of any product or circuit described herein; nor
does VMIC convey any license under its patent rights or the rights of others.
For warranty and repair policies, refer to VMIC’s Standard Conditions of Sale.
AMXbus, BITMODULE, COSMODULE, DMAbus, IOMax
MAGICWARE, MEGAMODULE, PLC ACCELERATOR (ACCELERATION), Quick Link, RTnet, Soft Logic Link, SRTbus,
TESTCAL, “The Next Generation PLC”, The PLC Connection, TURBOMODULE, UCLIO, UIOD, UPLC, Visual Soft Logic
Control(ler),
trademarks and The I/O Experts, The I/O Systems Experts, The Soft Logic Experts, and The Total Solutions Provider are
service marks of VMIC.
The I/O man figure, IOWorks, IOWorks man figure, UIOC, Visual IOWorks and the VMIC logo are registered
trademarks of VMIC.
ActiveX, Microsoft, Microsoft Access, MS-DOS, Visual Basic, Visual C++, Win32, Windows, Windows NT, and XENIX
are registered trademarks of Microsoft Corporation.
MMX is trademarked, and Intel, Pentium and Celeron are registered trademarks of Intel Corporation.
PICMG and CompactPCI are registered trademarks of PCI Industrial Computer Manufacturers’ Group.
Other registered tradem arks are the p roperty of their respective owners.
VMEaccess
, VMEbus Access
(I/O man figure)
, VMEmanager, VMEmonitor
(IOWorks man figure)
, IOWorks Foundation, IOWorks Manager, IOWorks Server,
, VMEnet, VMEnet II, and
VMEprobe
are
VMIC
All Rights Reserved
This document shall not be duplicated, nor its contents used for any
purpose, unless granted express written permission from VMIC.
Table of Contents
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
List of Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
VmeBus Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Physical Description and Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Safety Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Warnings, Cautions and Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 1 - Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Functional Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
VMEbus Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Output DACs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
VMIVME-4122 Buffers and Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Bit Multiplexer and Analog-to-Digital Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Board ID Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Built-in Power Converter and ADC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
DAC Output Update Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
External Simultaneous Input/Output Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 2 - Configuration and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Unpacking Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Before Applying Power: Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Analog Output Connector Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5
VMIVME-4122 8-channel 12-bit Analog Output Board
VMIVME-4122 Analog Output Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
VMIVME-4122 Analog Output: Bipolar, Unipolar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Board Address Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Address Modifiers Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Analog Offset and Gain Calibrations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Calibrating the VMIVME-4122: Potentiometer Adjustments . . . . . . . . . . . . . . . . . . . . . .35
Calibrating The VMIVME-4122. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Chapter 3 - Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Base Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Board ID Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
External Trigger Status Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Trigger Mode Function Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Word 4: Data Access Pointer Register.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Word 6: ADC Access Word Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
DAC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Chapter 4 - Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Maintenance Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
6
List of Figures
Figure 1-1 VMIVME-4122 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 2-1 VMIVME-4122 Configuration Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 2-2 VMIVME-4122 P2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 2-3 VMIVME-4122 Potentiometer Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 2-4 VMIVME-4122 37-Pin D-Shell Calibration Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 3-1 Flow Chart of the External Synchronization Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 3-2 DAC Register for One Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7
VMIVME-4122 8-channel 12-bit Analog Output Board
8
List of Tables
Table 2-1 VMIVME-4122 Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 2-2 Analog Output Range Jumper Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 2-3 VMIVME-4122 Analog Factory-Installed Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 2-4 VMIVME-4122 P2 Connector Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Table 2-5 Board Address Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Table 2-6 Address Modifier Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 3-1 VMIVME-4122 Board Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 3-2 Word 0: Board Identification Register Bit Map (Read) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 3-3 External Trigger Status Bit Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 3-4 Word 2: Control and Status/ADC Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 3-5 Trigger Mode Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 3-6 Board ADC Busy Bit Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 3-7 Word 4: Data Access Pointer Register Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 3-8 ADC Channel Address Bit map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 3-9 Word 6: ADC Access Word Bit Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 3-10 DAC Registers Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
9
VMIVME-4122 8-channel 12-bit Analog Output Board
10
Overview
Introduction
The VMIVME-4122 is an Analog Output board providing 8-analog output channels,
with 12-bit resolution. The VMIVME-4122 series are voltage output boards. The
VMIVME-4122 is a 3U form factor board that fits in a VMEbus chassis. Each output
has a dedicated Digital-to-Analog Converter (DAC) assigned to it (two quad DACs).
After system resets, the DACs are driven to zero volts and, the field connect bit is
cleared. The VMIVME-4122 output is disconnected from the field wiring. The analog
voltage outputs can be disconnected from the field wiring for off-line testing. The
output range is jumper selectable. The Built-In-Test (BIT) is used to verify correct
operation of the unit. Each output can be read back, using an internal 12-bit
Analog-to-Digital Converter to verify it’s correct setting.
11
VMIVME-4122 8-channel 12-bit Analog Output Board
Features
Listed below are the primary features of the VMIVME-4122 board:
• 8-analog output channels
• One 12-bit D/A Converter (DAC) per output channel
• Built-In-Test (BIT) 12-bit ADC and 8-channel analog multiplexer
• Double buffered DAC input data latches
• Data read back capability from DAC output register
• Random update (Non-Scanning) and simultaneous update
• Discrete wire or mass terminated cables
• External Transistor Transistor Logic (TTL) level simultaneous update input
• External TTL output capable of triggering other VMIVME-4122 boards
• Software Trigger Update
• Front panel status LED
• Two's complement to offset binary data conversion
• Built-In ±15VDC power supply
• Unipolar (0 to +10V or 0 to +5V) or Bipolar (±2.5, ±5, ±10V)
• 10 mA maximum output current per channel
• Outputs can be disconnected from the field
•0.8Ω output impedance
• 12-bit Built-In-Test (BIT) ADC range
12
VmeBus Products
The VMIVME-4122 is a single height 3U form factor board. This board complies with
the VMEbus specification (ANSI/IEEE STD1014-1987 IEC 821 and 297) with the
following mnemonics:
NOTE: ADC and DAC access must be D16 (word) only.
The VMEbus physical base address for the board is selected address lines A15
through A07 and Address modifier bit AM2. These are jumper-selectable and
decoded to support nonprivileged, supervisory or both address modifiers. Output
data is written to a 16-bit register (12-bit right justified and sign extended) that
corresponds to the output channel. This data is stored in on-board memory. The data
is modified by the board and sent to the corresponding output DAC. Built-In-Test
permits the user to select an output channel and determine if it is functioning
properly. The voltage measured on the VMIVME-4122 board is the voltage fed to the
buffer amp. After a system reset, the board will place all outputs to zero, clears all bits
in the Control/Status Register (CSR), and turn on the panel LED. The LED must be
extinguished under software control. This LED can be used to visually locate a faulty
board in a system. Reset places the board in a known configuration. This is explained
in detail in “Theory of Operation” on page 17 of this manual.
VmeBus Products
Addressing Mode A16 Responding Address Modifiers
$29 (Short nonprivileged I/O access) or
$2D (Short supervisory I/O access)
Data Accesses: D16, D08(EO), D08(O)
13
VMIVME-4122 8-channel 12-bit Analog Output Board
References
For a detailed description and specification of the VMEbus, please refer to:
VMEbus Specification Rev. C. and the VMEbus Handbook
VMEbus International Trade Assoc. (VITA)
The following application and configuration guides are available from VMIC to assist
the user in the selection, specification and implementation of systems based on
VMIC’s products.
Digital Input Board Application Guide (Document No. 825-000000-000)
Digital I/O (with Built-in-Test) Product Line Description (Document No. 825-000000-003)
Analog I/O Products (with Built-in-Test) Configuration Guide (Document No.
825-000000-005)
7825 East Gelding Dr.
Suite 104
Scottsdale, AZ 85260
(602) 951-8866
(602) 951-0720 (FAX)
www.vita.com
Connector and I/O Cable Application Guide (Document No. 825-000000-006)
Physical Description and Specification
Refer to VMIC’s Specification No. 800-004122-000 for detailed specifications.
14
Safety Summary
The following general safety precautions must be observed during all phases of the
operation, service and repair of this product. Failure to comply with these precautions
or with specific warnings elsewhere in this manual violates safety standards of
design, manufacture and intended use of this product.
VMIC assumes no liability for the customer’s failure to comply with these
requirements.
Ground the System
To minimize shock hazard, the chassis and system cabinet must be connected to an
electrical ground. A three-conductor AC power cable should be used. The power
cable must either be plugged into an approved three-contact electrical outlet or used
with a three-contact to two-contact adapter with the grounding wire (green) firmly
connected to an electrical ground (safety ground) at the power outlet.
Do Not Operate in an Explosive Atmosphere
Safety Summary
Do not operate the system in the presence of flammable gases or fumes. Operation of
any electrical system in such an environment constitutes a definite safety hazard.
Keep Away from Live Circuits
Operating personnel must not remove product covers. Component replacement and
internal adjustments must be made by qualified maintenance personnel. Do not
replace components with power cable connected. Under certain conditions,
dangerous voltages may exist even with the power cable removed. To avoid injuries,
always disconnect power and discharge circuits before touching them.
Do Not Service or Adjust Alone
Do not attempt internal service or adjustment unless another person capable of
rendering first aid and resuscitation is present.
Do Not Substitute Parts or Modify System
Because of the danger of introducing additional hazards, do not install substitute
parts or perform any unauthorized modification to the product. Return the product to
VMIC for service and repair to ensure that safety features are maintained.
Dangerous Procedure Warnings
Warnings, such as the example below, precede only potentially dangerous pro cedures
throughout this manual. Instructions contained in the warnings must be followed.
WARNING: Dangerous voltages, capable of causing death, are present in this system.
Use extreme caution when handling, testing and adjusting.
15
VMIVME-4122 8-channel 12-bit Analog Output Board
Warnings, Cautions and Notes
STOP informs the operator that a practice or procedure should not be performed.
Actions could result in injury or death to personnel, or could result in damage to or
destruction of part or all of the system.
WARNING denotes a hazard. It calls attention to a procedure, practice or condition,
which, if not correctly performed or adhered to, could result in injury or death to
personnel.
CAUTION denotes a hazard. It calls attention to an operating procedure, practice or
condition, which, if not correctly performed or adhered to, could result in damage to
or destruction of part or all of the system.
NOTE denotes important information. It calls attention to a procedure, practice or
condition which is essential to highlight.
16
Theory of Operation
Introduction
The VMIVME-4122 Analog Output board provides 8-analog output channels with 12-
bit resolution. The VMIVME-4122 can source or sink 10 mA at up to ±10V. Each
output has a dedicated Digital-to-Analog Converter (DAC) assigned to it. After
system resets the DACs are driven to zero. The analog outputs can be disconnected
from the field wiring for off-line testing. The output voltage range is user selectable
with jumpers. The base address and the access mode are jumper selectable.
CHAPTER
1
17
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