pc104 bus.pdf

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http://www.vidts.comPPRROODDUUCCTT CCAATTAALLOOGG Chengdu VIDTS Dynamic Instrument Co., Ltd

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CATALOG

PC104 bus parallel data acquisition series products.......................................2

PEM4712....................................................................................................................................3

PEM2712....................................................................................................................................6

PEM4311....................................................................................................................................9

PEM-RELAY16...................................................................................................................10

NetVI Toolkit for Virtual Instrument.....................................................................11

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PC104 bus parallel data acquisition series products

PC104 is an extension of ISA (IEEE-996) standard. The first PC104 was generated in 1987, butthe formal specification was declared in 1992. Then more and more people took interest in PC104.

One hundred and twenty five factories introduced PC104 specification to manufacture PC104compatible products. In 1991, IEEE started to formulate a simplified IEEE-P996 standard (draft)for PC and ISA bus standard. PC104 was adopted as a basic file, and called IEEE-P996.1compatible PC embedded module standard.

PC104 is a dedicated industrial control bus for embedded control. In fact, PC104 is a compactIEEE-P996. The signal definition is similar as PC/AT, but the mechanical specification iscompletely different. It is a more optimized, small-sized, stacked structure embedded controlsystem.

The major differences between PC104 and common PC/AT ISA bus control system are:

1. Small-sized structure: The mechanical size of standard module is 3.63.8 inch, namely

9690mm.2. Stacked connection: Remove bus backboard and slide track of plug board; the bus is

connected with cascading in the form of needle and hole. That is to say, the connection ofbuses between PC104 bus modules are crossly bitten back and joined through the needle on upperlayer and hole on the lower layer. This cascade capsulation has very good performance ofearthquake resistance.

3. Easy bus drive: reduce element quantity and power consumption. 4mA bus drive can makethe module operate normally. Each module consumes 1-2 Watts.

Chengdu VIDTS Dynamic Instrument Co., Ltd. adopts advanced large-scale integrated circuittechnology to design PC104 series acquisition instrument. We provide instrument developmentcore devices for the users to develop dedicated virtual instrument.

PC104 bus parallel data acquisition series products shopping guide

Mode PEM47120 PEM2712 PEM4311

DC Accuracy (FS) 0.2% 0.2% 0.3%

AC Accuracy (1kHz) 0.5% 0.5% 1%

Crosstalk -85dB -85dB -

A/D resolution 12bits 12bits 12bits

Max sampling rate (sps) 40M 20M/10M/5M 60M

Memory Depth (sa) 4M/CH 4M/CH 64k

Range 1V 1V10V -

Channels Parallel 2CH Parallel 2CH Single Channel

Input Impedance 1M25pF 1M25pF -

Input signal bandwidth DC 0~12MHz 0~6MHz/3MHz/1.5MHz 1MHz~60MHz

Note: Memory depth can be extended to 8M/CH or 16M/CH.

The drivers, application program and toolkit are available at http://www.vidts.com.

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PEM4712

40M-12bit-2CH Parallel Data Acquisition Module

Features

Parallel design, 2 high-speed 40M 12bit ADCs, 2independent programmable gain channel

Achieves 40mV~40V voltage signalacquisition with toolkit

High accuracy of measurement with phaseconsistency

Triggering sources: software (manual), internal,external triggering

Standard PC104 board card designed Small-sized structure, stacked connection and

easy bus drive

Application

For any PC104 embedded system

Overview

By adopting synchronous parallel design, two pieces high-speed 40MSPS 12-bit ADCs, 40Msmall scaled encapsulated crystal oscillator and two independent programmable gain channelscomposed of high speed precise operational amplifier and precise attenuation filter network areintegrated into the card to achieve large dynamic signal acquisition range of 40Mv~40V with apre-amplifier. Gain errors and zero-bias of each channel can be removed independently by DAQcontrollers fine-tuning which facilitates this product with high measurement accuracy and phaseconsistency. No manual adjustable component insures the high reliability and stability of theproducts.

Analog Input

The Acquisition card has designed the independent time base and the clock controller. Whilecascading multiple acquisition of system, each card may have different sampling rate. The triggerlines and clock lines of each board cascade through local bus connecter. Under the control of theunified clock and triggering, the acquisition system achieves the full-synchronized acquisition.The maximum sampling rate of PEM4712 A/D is 40Msps with 18- level sampling rate setting.Each channel can separately control the gain setting with a range of 1V. The maximum samplingdepth of each channel can achieve up to 4Msa. The specially designed ring buffer facilitatespre-trigger sampling function, which is suitable for signal recording of transience process of

engineering. Delay of pre-trigger and post-trigger samples can cover the maximum period.

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Triggering Sources

PEM4712 has wide range of triggering sources, including software (manual), internal and externaltriggering. Internal triggering level can be set up freely within current range with options oftriggering conditions of rising edge, falling edge, internal dual-threshold, external dual-threshold;

external signal complies with TTL electrical standard with options of effectiveness of rising edgeand falling edge. Through setting multiple triggering modes, accurate capture of variouscharacteristic signals can be guaranteed.

Specification

Characteristics Operating System

Windows 95/98/ME

Windows 2000/XP

Software

DasView2.0Toolkit

Provide DEMO source code undercommon development platforms andtechnical support for development.

Requirement on Environment

Operating Temperature: 0 to 40 Storage Temperature: -40 to 60 Relative Humidity: 40 20 to 90% (no

condensation)

Sampling Rate (sps): 1k40M

A/D resolution: 12 bits DC accuracy: 0.2%(FS) Input channel: Parallel synchronous 2

channel

Input impedance: 1M//25pF Inter-channel phase difference:

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Functional Block Diagram

bufferamplifier

Anti-alias

filterCH0

CH1Anti-alias

filter

SDRAM

controller

SE2PROM

Externaltrigger

modulation

1M/25pF

1M/25pF

ADC

ADC SDRAM

SDRAMbufferamplifier

DAQ

controller

I2

Ccontrol

ler

PC104 busInterface

Businterface

Logic

Triggercontrol

ler

PC104 Bus

Synchronous

busExternal

trigger

Accessory Odering Information

Model Description Model Max.Rate(sps)

MemoryDepth(sa)

PEM-RELAY16PC104 optical isolation

relay control panelPEM4712 40M 4M/CH

PEM-AMP206PC104 Pre-amplifying

controller

Note: Memory depth can be extended to

8M/CH or 16M/CH

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PEM2712

20M/10M/5M -12bit-2CH Parallel Data Acquisition Module

Features

Parallel design, 2 independent programmablegain channel




Standard PC104 board card designed

Small-sized structure, stacked connection andeasy bus drive

Application

For any PC104 embedded system

Overview

By adopting synchronous parallel design, two pieces high-speed ADCs, 20M small scaledencapsulated crystal oscillator and two independent programmable gain channels composed ofhigh speed precise operational amplifier and precise attenuation filter network are integrated intothe card to achieve large dynamic signal acquisition range of 40Mv~40V with a pre-amplifier.Gain errors and zero-bias of each channel can be removed independently by DAQ controllersfine-tuning which facilitates this product with high measurement accuracy and phase consistency.No manual adjustable component insures the high reliability and stability of the products.

Analog Input

The Acquisition card has designed the independent time base and the clock controller. Whilecascading multiple acquisition of system, each card may have different sampling rate. The triggerlines and clock lines of each board cascade through local bus connecter. Under the control of theunified clock and triggering, the acquisition system achieves the full-synchronized acquisition.The maximum sampling rate of PEM2712 A/D is 20Msps with 18- level sampling rate setting.Each channel can separately control the gain setting with a range of 1V or 10V. The maximumsampling depth of each channel can achieve up to 4Msa. The specially designed ring bufferfacilitates pre-trigger sampling function, which is suitable for signal recording of transienceprocess of engineering. Delay of pre-trigger and post-trigger samples can cover the maximumperiod.

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Triggering Sources

PEM2712 has wide range of triggering sources, including software (manual), internal and externaltriggering. Internal triggering level can be set up freely within current range with options oftriggering conditions of rising edge, falling edge, internal dual-threshold, external dual-threshold;external signal complies with TTL electrical standard with options of effectiveness of rising edgeand falling edge. Through setting multiple triggering modes, accurate capture of variouscharacteristic signals can be guaranteed.

Specification

Characteristics Operating System

Windows 95/98/ME Windows 2000/XPSoftware

DasView2.0Toolkit

Provide DEMO source code undercommon development platforms and

technical support for development.



condensation)

Sampling Rate (sps): 1k20M/10M/5M A/D resolution: 12 bits DC accuracy: 0.2%(FS) Input channel: Parallel synchronous 2

channel

Input impedance: 1M//25pF Inter-channel phase difference:

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Functional Block Diagram

PGA Anti-aliasfilterCH0

CH1Anti-alias

filter

SDRAM

controller

SE2PROM

Externaltrigger

modulation

ADC

ADC SDRAM

SDRAMPGA

DAQ

controller

I2

Ccontrol

ler

PC104 busInterface

Businterface

Logic

Triggercontrol

ler

PC104 Bus

Synchronous

busExternal

trigger

Accessory Odering Information

Model Description ModelMax.

Rate(sps)MemoryDepth(sa)

PEM2712C 20M 4M/CH

PEM2712B 10M 4M/CHPEM-RELAY16PC104 optical isolation

relay control panelPEM2712A 5M 4M/CH

PEM-AMP206PC104 Pre-amplifying

controller

Note: Memory depth can be extended to

8M/CH or 16M/CH

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PEM4311

Arbitrary Waveform Generator Module

Overview

PEM4311 is an embedded arbitrary waveformgenerator module based on PC104 bus. It isespecially applicable for the user to developmeasurement & control instrument productwith special application. It may generateroutine waveforms such as sine wave, squarewave, saw-toothed wave, pulse wave andnoise to realize frequency modulation andamplitude modulation. In addition, PEM4311can output appointed waveform document byuser or generate waveform with mathematicalexpression.

PEM4311 adopts DDS, FPGA and SRAM. The DDS CORE controller drives to generatearbitrary waveforms with output repeat frequency range from 0.02Hz to 5MHz with 0.02Hzadjusting step. High-speed swept output driven by software may generate the output effect ofFM/AM.

The users can embed PEM4311 to target system to carry on development. PEM4311 can bewidely used at various situations that need all kinds of complex signal sources or excitationsources. It can be used in these field such as automatic measurement & control system,communication system test, product test in product line, frequency feature test and laboratorysimulation. Therefore, it has excellent integration, frequency resolution, reliability, stability andperformance-price ratio.

Specification

Characteristics External triggering: TTL Triggering: external triggering or soft

triggering

Sized: 96mm90mmOperating System

DOS Windows 95/98/ME NetVI formerToolkit

Provide DEMO source code undercommon development platforms andtechnical support for development.



condensation)

Waveform frequency (Hz): 0.1 (DC)~5M A/D resolution: 12 bits DAC Rate: 20MHz Input channel: Single channel Output impedance: 50 Mode of input signal: Q9 solitary port Output range: 0~10Vpp Frequency resolution: 0.02Hz Frequency stability:

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PEM-RELAY16

Optical Isolation Relay Control Panel

Application

PEM-RELAY16 is a standard PC104board card, applicable for any PC104embedded system.

The design of isolating voltage can bedirectly applied to the system withoutgrounded.

Overview Functional Block Diagram

PEM-RELAY16 optical isolation relaycontrol panel can drive 12V or 24V opticalisolation relay. A special isolating design canoffer input of digital acquisition data a 1500VDC isolation protection under noise

environment. More than 16 channelsindependently control the Relay. A red LEDdisplays the working status of the controlpanel.

PC

104

BUS

DC-DC

5V

16PC104buscoding

digitalphoto-electricitycoupling

relayoutputdirvestage

C0IL0

COIL15series shiftregister

DCLK

DATA

DCLK

DATA

Specification

Characteristics Other parameter

power waste: +5VDC@30mA (max) Operating Temperature: 0 to 40 Storage Temperature: -40 to 60 Relative Humidity: 40 20 to 90% (no

condensation)

Isolating voltage:1500VDC Max driven current: 30mA The number of max supporting cards in

single system: 16

Standard design of PC104 board card

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NetVI Toolkit for Virtual Instrument

Support rapid application development and special design for professional application

Distributed network virtual instrument solutions Embedded data acquisition instrument Solutions

The modules such as PC104 serial acquisition cards and amplifier cards, signal generator, isolatingDIO produced by Chengdu VIDTS Dynamic Instrument Co., Ltd. adopt advanced large-scaleintegrated circuit. They are especially applicable for taking as core components for professionalembedded instrument development.

The Company develops Ethernet virtual instrument toolkit-NetVI for rapid development based

on PC104 platform. Through offering full-scale function DLL, it can achieve remote instrumentmodule control through by simply calling library function. When the users customize their ownprofessional application, the development will become easier. Therefore, they can pay moreattention to application solution.

PEM-2712B

PEM-2712C

PEM-4712

PEM-2712A

stand cabinet

PCI/ISA

NetVI

Ethernet

Laptop

Handheld pcCompatible pc

NetVI.DLLApplication

software

PC104

C P ULCD

socket

socket

Acquisition

signal

PC104 bus interface

PEMacquisition

module

PEM-AMP206

PEMaccessorySpecial function device

0

0

0

0

0

Pre-amplifer

Module in PBX box

PBX Integrated portable box

PBXSensor

Cable

Optical fiber

Twistedpair wire

PEM-RELAY16

PEM-4311

Upper diagram is NetVI systematic connection. Combining PC104 CPU board with Ethernetnetwork interface with PEM acquisition module can consist of a NetVI system. PEM-AMP206and PEM-RELAY16 can separately extend the range and isolation DIO. PEM4311 can offer afunction as an embedded arbitrary waveform generator. All the PEM acquisition modules can befreely matched and used. PC104 CPU board OS and service port software operate the NETVIprotocol and accept the order request and data transfer of remote PC. Network connection can berealized by twisted pair wire or coaxial cable with distance range of 100m to 300m. The repeaterscan extend service effective range. If adopting optical fiber network connection, the transferdistance can reach from several kilometers to thousands of kilometers, while the sampling rate anddata integrity will not be affected by distance.

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Application

Digital instrument applied in industry, parallel acquisition product module with wide range oftemperature, high shock resistance, and low consumption, miniaturized, easy to develop andinstall.

Design and develop large scale measurement and testing system, complicate distant analogsignal transfer and anti-interference

Recommend virtual instrument products with own brand to realize miniaturization andmicromation with portable mobile and battery power supply under matching pre-amplifier andsensor, and post measuring analyses software.

NetVI Hardware

1. Acquisition deviceFeatures

Parallel design, 2 high-speed ADCs, 2independent programmable gain channel




Standard PC104 board card designed Small-sized structure, stacked connection and

easy bus drive

Odering Information

Model Max. Rate(sps) Memory Depth(sa)

PEM4712 40M 4M/CH

PEM2712C 20M 4M/CH

PEM2712B 10M 4M/CH

PEM2712A 5M 4M/CH

Note: Memory depth can be extended to 8M/CH or 16M/CH

Accessory

Pre-amplifying controller of PEM-AMP206 can realize a range control with input signal from4mV to 400V in order to satisfy requirements of different clients. Using PEM2712 produced byour company can acquire great dynamic signal easily and it is applicable for all kinds of embeddedsystems.

PEM-RELAY16 optical isolation relay control panel can drive 12V or 24V optical isolationrelay. A special isolating design can offer input of digital acquisition data a 1500 VDC isolationprotection under noise environment. More than 16 channels independently control the Relay. A redLED displays the working status of the control panel.

PEM4311 may generate routine waveforms such as sine wave, square wave, saw-toothed wave,pulse wave and noise to realize frequency modulation and amplitude modulation. In addition,

PEM4311 can output appointed waveform document by user or generate waveform withmathematical expression.

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2.Embedded main boardCPU board module taking Intel highperformance 32-bit embedded microprocessor386EX as core has been equipped with

integrated network communication interfaceand LCD display interface. It has low powerconsumption, high reliability, powerfulfunction and high performance price ratio.The host computer operates DOS system, andhas such characteristics as low price, delicate,stable and powerful hardware supporting, soit is a popular operating system in embeddedapplication field.

NetVI Software

Network MAC Network MAC

TCP/IP

NetVI serverNetVI *.DLL

Application software

TCP/IPEthernet

Network service program of virtual instruments (NetVI server)After embedded host computer start-up, it can operate network service program of virtualinstruments automatically, accept and process all kinds of operating requests inputted throughnetwork (IP address is set up in factory). It has high stability to process all kinds of networkabnormity.

Drive library of instrument (NetVI.DLL)Offer a series of functions in drive library of instrument for the users. The users can operateinstrument only by calling library functions, so network communication is transparent for usersjust as instrument is working in native machine.

Chengdu VIDTS Dynamic Instrument Co., Ltd. established development support strategy that is

long-term stability and facing whole period for the users who have special requirement of research

and development. Therefore, it can well protect investment in custom-built special application.

pc104 bus.pdf

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