2.2.A.8. Data Acquisition System Series 6000 Data
Contents
1. rear through the integral cable tray turning downward to the mating connector which is supplied with a hood having a 90 cable exit The input cables may directly wire to the transducer or junction boxes may be used Junction boxes provide screw terminals for terminating facility input cables The mainframe or slave enclosure provides DC power to the input output modules 2 2 A 8 6 2 Input Output Modules Signal conditioning input modules are available for the measurement of strain temperature acceleration displacement voltages currents digital events IRIG time frequencies periods and counts Output modules are available to provide TTL or relay outputs and DAC outputs Any module can be placed in any available card slot in a mainframe or slave enclosure Channel modules do one of four functions 1 Condition and digitize transducer or other analog signals 2 Condition and record the status of digital inputs 3 Provide digital outputs for system test or facility control and 4 4 Provide filtered analog DAC outputs for controlling test equipment or system calibration The 6032 275 channel modules were supplied and installed in the Mainframe 6000 and Slave 6001 The 6010 enclosure consist of two 6013 3 cards and one 6093 card 2 2 A 8 6 2 1 Model 6032 4 Channel Transducer Amplifier Digitizer The 6032 input module shown in Fig 4 has four channels of high performance strain gage or bridge transducer signal condit2. 2 2 A 8 Data Acquisition System Series 6000 Data Acquisition System 6000DAS shown in Fig 1 is a high performance transducer signal conditioning digitization and control system It uses analog digital and software technology to condition acquire display and analyze transducer and digital signals and provides digital and analog outputs for control PI660 6000 is the application software that operates the Pacific Instruments Model 6000 Data Acquisition System DAS It is a Taag f turnkey application that controls channel UODIOENEOIUIII Y setup acquisition of data storage of data to Tent disk data conversion to engineering units and export of data to common file types The software operates under Microsoft Windows The specifications of the system are provided in the Pacific Instruments s manuals entitled PI660 6000 Data Acquisition and Display Software and 6000DAS Transducer Data Acquisition and System Control Section 1 The details on installation and operation of the Pacific Instruments Model 6000 Data Acquisition System are presented in 6000DAS Transducer Data Acquisition and Fig 1 Series 6000 Data System Control Section 2 Acquisition System Users manual on warnings alarms and triggering is provided in the Pacific Intruments manual 6000DAS Transducer Data Acquisition and System Control Section 3 2 2 A 8 a Introduction and Product Description The 6000 DAS s unique archit
3. at gives PI660 this capability is known as the User Code Interface UCI PI660 is a full turnkey software package for the 6000 and 5500 systems but often the systems are used in conjunction with other products from other vendors i e PLCs sequencers etc The UCI provides the means to modify the behaviour of PI660 insert menu commands control PI660 etc The UCI is really a shared memory DLL that PI660 makes calls to during operation The calls are to functions in the DLL that PI660 knows about Since the user receives the source code for the DLL and a fully operational version of the DLL he is free to add functions to the DLL The DLL can also be used as a middle ground between Graphical Programming Languages GPLs such as LabView and HP Vee or between PI660 and user applications The 6000DAS is a programmable multi channel transducer and digital input signal conditioning and recording system that includes digital and analog outputs for test and facility control All channel and system functions and parameters are programmable using the IEEE 488 computer interface installed in the Mainframe The mainframe also contains the data output interface that may be IEEE 488 or optional PCM IRIG 106 format Series 6000 products are unique in that they are calibrated entirely by computer A non volatile memory on the channel modules is programmed at the factory with values that calibrate excitation gain and analog to digital converter ADC Th
4. d outputs programming the 6032 using PI660 can be found the manual provided by Pacific Instruments 6OOODAS Transducer Data Acquisition and System Control Section 8 Fig 4 Model 6032 4 Channel Transducer Amplifier Digitizer 2 2 A 8 b 2 2 6013 Termocouple Voltage Instrumentation Amplifier Digitizer The 6013 has eight channels of DC coupled programmable gain instrumentation amplifier filter and sample amp hold The high level output signals are multiplexed into a 16 bit analog to digital converter and output to the 6000 s data bus It is used for thermocouples DC LVDTs and other voltage output transducers A circuit measures and digitizes temperature of a remote sensor at the thermocouple terminations PI660 software uses this measurement to cold junction compensate thermocouple readings Calibration may be performed by substituting a precision input from a traceable source Inputs can be switched to the 6000 s voltage calibration bus and attenuated to match gain settings More detailes on the card are provided in the Pacific Instruments Manual 6000DAS Transducer Data Acquisition and System Control Section 4 2 2 A 8 6 3 GPIB Instructions Series 6000 is programmed by computer using the IEEE 488 interface and a high level GPIB instruction set The system controller which is mounted in the Mainframe converts the high level GPIB instructions into low level hardware specific primitive commands which are
5. distributed to the channel controllers and DDS In the channel controller the primitive commands are implemented or passed on to the input output modules Operating parameters i e gain and filter frequency are stored in the channel controller for power up programming The channel controller implements control operations i e autobalance and autozero and the results stored and passed to the input output modules The details on the GPIB programming are provided in the Pacific Instruments manual entitled 6000 System Programming Primer 2 2 A 8 c PI660 6000 Application Software PI660 6000 is available in a standalone version or in a client server version The client server version supports a single server connected to the 6000 DAS and up to ten client display workstations The client server version uses standard Ethernet interfaces and requires Windows NT One of the most unique features of PI660 is its open architecture In its simplest form it is a turnkey application that performs all of the tasks of system control data acquisition display and data exportation Internally however PI660 is much more than a turnkey application PI660 is comprised of two functional parts The first part is the main screen or container application The second part is a dynamic link library DLL The container application examples shipped with the CMD are written for Visual Basic Lab View and Microsoft Excel The user can create other conta
6. ecture enables efficient recording of both static and dynamic measurements with excellent time correlation Operating software is available for Windows 95 and NT for use with personal computers or the system s high level GPIB command language may be used for programming with other types of computers The system architecture accommodates up to 4096 channels in a single system Multiple systems may be connected to a single IEEE 488 The 6000DAS comes in two sizes Model 6000 mainframe and 6001 slave enclosures hold 16 input output modules and mount in EIA 310C 19 inch racks requiring 14 inches height The 6010 mainframe is a 5 inch bench top case that holds 3 input output modules and is mounted on the same rack The system is modular to accommodate applications of different size and transducer types All systems employ a Mainframe as the basic system interface hardware The channel modules provide transducer signal conditioning and digitizing Up to 16 channel modules mount in the 6000 Mainframe and 6001 Slave enclosures and each system may have space for up to 512 channel modules The 6000 system is designed for large and small scale testing for both long and short duration Its flexible design allows for the sampling of different channels at different rates and it allows for the decimation of data being acquired during long duration testing The system has two parallel buffers for digitised data One of the buffers is a FIFO buffer and the o
7. ese values are loaded and initialised when the system is powered up There are no user controls or calibration adjustments Field or customer calibration is done using Pacific s service and calibration software 2 2 A 8 b Hardware of Model 6000 Data Acquisition System 2 2 A 8 6 1 Mainframe and Enclosures A 6000DAS is comprised of a Mainframe and a Slave enclosure the number of slave enclosures can be extended up to 31 Two models of Mainframe enclosures 6010 and 6000 have slots for three or sixteen I O modules cards Slave enclosures have slots for sixteen I O modules The Mainframe contains an IEEE 488 control and data output interface Slaves are connected to the main frame by supplied cables The Model 6000 Mainframe shown in Figs 2 and 3 is for larger systems It holds the initial 16 channel modules with the remaining 16 channel modules being placed in 6001 Slave enclosures Both are line powered 8U 14 inches high rack mounted enclosures ee iii TTT VOODDOOOC0dbeooD t aad ARALARAARAN Fig 2 Mainframe 6000 door closed Fig 3 Mainframe 6000 door removed For smaller systems there is the 6010 Mainframe which holds 3 channel modules It is line powered and 3U 5 1 4 inches high The 6010 is supplied in a bench top case but can be mounted in a 19 inch rack using an optional kit Like its larger counterpart 6010 based systems may be expanded using 16 slot Slave enclosures Mainframes include and IEEE 488 co
8. iner applications in any programming language The figure above shows the Microsoft Excel container application working with the DLL to provide real time spread sheet updates based on data from a Pacific Instruments 6000 DAS The Component Module DLL concept provides the user with a driver to the turnkey application code This is in contrast to providing the user with a driver to a piece of hardware The user spends his development time changing the user interface and customizing the display environment so that it fits his facility s needs The detailed manual for the PI660 application software is provided by Pacific Instruments Using PI660 Version 8 An Operators Guide To Data Acquisition Using The Pacific Instruments Model 6000 DAS 2 2 A 8 c 1 Two Add On Capabilities for the PI660 6000 There are two add on capabilities for the PI660 6000 software They are the math engine and the component module DLL CMD 2 2 A 8 c 1 1 PI6G60 6000 Math Engine The PI660 Math Engine is an add on capability It allows the user to define up to 300 equation channels The equation computed channels are updated in real time and are available for display on the PI660 data displays The math engine provides a programming language syntax that allows the user to define complex equations The syntax of the language provides for single point based calculations There is no looping structure to the language Users can generate loop structure calculati
9. ioning amplifier and 4 pole low pass filter The high level outputs are multiplexed and digitized to 16 bits then output to the 6000 data bus In addition to the digitized output each channel provides a continuous wideband analog output Excitation monitor channels that digitize and output the excitation voltage are optional Some features the make the 6032 4 Channel Transducer Amplifier Digitizer unique are Programmable excitation 0 to 12 Volts Eight wire input with remote sensing Optional excitation monitor channels Programmable configuration for 1 4 2 and full bridges Shunt calibration Automatic zero and balance Gains 1 to 5 000 with 0 05 resolution Voltage calibration 15K channel digitizing rate with 16 bit resolution 4 Pole low pass filter optionally programmable Continuous analog outputs Programmable warnings and alarms The 6032 occupies one slot in a Series 6000 mainframe or slave enclosure Power and control data bus connections are made though two connectors to the enclosure s backplane Inputs of connect to a 50 pin inti or type D connector on r eed ents the front card edge Ris ToN hihihihi Outputs are on a 9 pin z a type D connector also on the front edge of the card module The details on pre installation configuration of the 6032 installation of the 6032 in mainframe and slave enclosures connecting the 6032 to transducers an
10. ntrol and data interface a system channel controller module with Digital Data Selector DDS and front panel with LED indicators Standard mainframes have an IEEE 488 data interface A serial PCM data interface is optionally available A microprocessor which is located on the channel controller module programs and controls channels in the enclosure It programs the channel s operating parameters in response to computer instructions and at power up It also controls channel functions such as autobalance autozero calibration and data output Operating parameters are stored in a non volatile memory on the channel controller that is read during the power up sequence and initializes channels This enables the channels to power up with their last programmed parameter values The front panel doors on both mainframe and slave enclosures may be removed for module insertion and wiring An internal cable trey routes input and output cables to the rear of the enclosure where they exit through the rear panel The rear panel has connectors for interface control and calibration connectors as well as AC power Integral fans provide cooling to the input output modules drawing air from the rear through a filter on the rear panel Input output modules have front mounted connectors that interface to transducers and control circuits They are located approximately 3 inches behind the door giving ample room for mating connectors and cabling Cabling runs from the
11. ons using the Component Module DLL CMD Each computed channel can be derived from up to nine other channels The nine other channels can be either real inputs to the 6000 system hardware or other computed channels A computed channel consists of an equation a name a unit tag two alarm levels two warning levels and colors for alarm warning and good data levels 2 2 A 8 c 1 2 Component Module DLL CMD The CMD is a programming interface to the PI660 6000 software It allows the user to extend rearrange add and remove features from the PI660 6000 turnkey software It is a much more flexible programming environment than a simple driver It is actually a driver to a turnkey application rather than a hardware driver and as such it provides for extremely fast facility based software integration The math engine is described in Section 2 of the PI660 6000 Software Specifications Sheet The Component Module DLL is described in Section 3 of the PIG60 6000 Software Specifications Sheet
12. ther is a ring buffer The ring buffer can be programmed to capture pre and post trigger data and can be operated at different speeds than the FIFO The FIFO sends data to the computer in real time at a maximum throughput of 800 000 samples per second As an example consider a test of an aircraft fuselage The test may take two weeks to perform and it may culminate in failure of the fuselage The user can program the FIFO to record data to disk for historical purposes at a low rate 1 scan per minute and program the ring buffer to run at a high rate 1 000 scans per second During the non failure testing of the fuselage data are logged to disk without filling up the drive When the failure occurs the ring buffer triggers and captures the programmed amount of pre and post trigger data at the high rate The software for the 6000 system is PI660 It uses open architecture approaches that allow for the extension of the software and easy integration into user facilities Test parameters are stored in an Access database and are retrieved and modified via the Open Database Connectivity Layer ODBC using SQL commands The user can choose to use a different database type i e Paradox Oracle etc as long as it is supported by ODBC most are If the database software changes version PI660 is shielded from the change due to the open architecture read and write architecture of ODBC PI660 also is easily integrated into user facilities The mechanism th
Download Pdf Manuals
Related Search