Table of Contents
Advertisement
Quick Links
Advertisement
Chapters
Table of Contents
Related Manuals for L-Card E20-10
Summary of Contents for L-Card E20-10
- Page 1 A family of universal modules of the ADC, DAC Measuring voltage converters E20-10 E20-10-1 E20-10-D E20-10-D-1 E20-10-D-I E20-10-D-1-I User manual Revision 2.01.00 October 2017 http://en.lcard.ru en@lcard.ru DAQ SYSTEMS DESIGN, MANUFACTURING & DISTRIBUTION...
-
Page 2: E20-10
Author of the manual: A.V. Garmanov L-CARD LLC 117105, Moscow, Varshavskoye shosse, 5, block 4, bld. 2 tel.: (495) 785-95-19 fax: (495) 785-95-14 Internet contacts: http://en.lcard.ru E-Mail: Sales department: en@lcard.ru Technical support: en@lcard.ru E20-10 module © Copyright 2005-2017, L-Card LLC. All rights reserved. - Page 3 Revision history of this document Manual Date Notes to the updates revision Guidelines on E20-10 revision А release of which was 1.00.02 – 05-2006 - 1.00.07 05-2007 completed in late 2007. 2.00.01 04-2008 The manual is significantly amended, updated due to addition of numerous details on E20-10 revision В.
-
Page 4: Table Of Contents
Design versions..........................7 1.4. How to read this manual?......................8 Primary application properties ......................9 Complete list of user differences of revisions А, В and B.01 for E20-10 module ....11 2.1. General description ..........................14 3.1. Device application ........................14 3.2. - Page 5 Specifications ............................56 7.1. ADC............................. 56 7.1.1. E20-10, E20-10-I, E20-10-D-I: limits of the permissible relative basic error of measuring the ac voltage ........................58 7.1.2. E20-10-1, E20-10-1-I, E20-10-D-1-I: limits of the permissible relative basic error of measuring the ac voltage ........................58 7.1.3.
-
Page 6: What This Document Is About
Revision B is assigned to new E20-10 and its manufacturing has started with 2008. Revision А executed before the end of 2007 of E20-10 module is taken out of production but, of course, is being supported by L-Card, and its description is given in this manual. E20-10 of revision В–... -
Page 7: Designation System
отсутствует index D 1.3. Design versions • E20-10 (ADC frequency bandwidth of 1.2 MHz, 2-channel DAC is not available). • E20-10-D (ADC frequency bandwidth of 1.2 MHz, 2-channel DAC is available). • E20-10-1 (ADC frequency bandwidth of 5 MHz, 2-channel DAC is not available). -
Page 8: How To Read This Manual
Sketchy information on primary application properties of E20-10 is given in Chapter 2. This chapter is targeted for wide range of stakeholders. In Chapters 3, 0, 6 details relating to practical work itself with E20-10 are given. The issues discussed herein will be of interest for specialists and operators. -
Page 9: Primary Application Properties
• In module control table the frame — random sequence of channel sampling with length of from 1 to 256 can be programmed. Size of sampled channels will be selected cyclically from the set size table and order of output data samples E20-10 will comply with channels sequence. - Page 10 • Power supply of E20-10 from external unregulated source is +8V...+40 V (power supply circuit from USB is not used). It can be network card of -220/=12 V (included in the delivery.). Under off-line conditions E20-10 can be energized from external power supply source of from +9 to +27 V.
-
Page 11: Complete List Of User Differences Of Revisions А, В And B.01 For E20-10 Module
Since 2008 L-Card has decided to release E20-10 of revision В with advanced useful quality. All E20-10 modules of 2006 and 2007 production years should be related to revision А (see label on the body bottom), since 2008 L-Card has started to produce E20-10 of revision В. - Page 12 2 (fixed) 6 (for L-CARD-E20-10) 3.3.2 Certificate of Means of Measurement E20-10 - Not available L-CARD- E20-10 (under certification) E20-10 In this case the references to product of L-CARD LLC are required in Your system end user documentation. E20-10 User Manual...
- Page 13 As shown in table above, revision В of E20-10 module has better useful quality in variety of significant parameters in comparison with revision А!
-
Page 14: General Description
3-2). In addition, on factory label ( on the body bottom) of E20-10 module of revision А the production years 2006 or 2007 are specified, and on label of revision В – 2008 or later. Moreover, on the label the design version of E20-10 module is specified in compliance with agreed notation (p. -
Page 15: Fig. 3-1. E20-10 Revision А Appearance
Fig. 3-1. E20-10 revision А appearance Fig. 3-2. E20-10 revision В appearance Appearances of E20-10 of revision B and B.01 are similar. Details on revision B.01 are specified on label on body bottom wall. Power supply voltage range is specified on body top cover. -
Page 16: Module Configuration
• communication cable on USB 2.0 (1 pcs.) — А-В type, length of 1.3...2.0 m • network card for E20-10 power supply from alternate current network of 220 V, 50 Hz • magnetic sweep cable of connector (1pcs.) — DB-37M with housing DP-37P — for digital signal cable terminating production •... -
Page 17: Software Delivery
3.3.3.1. Operational software For historical reasons, L-Card LLC firm provide currently two libraries for the user to operate with module E20-10, as follows: Lusbapi and LComp. Both libraries are intended to operate under Windows’98/2000/XP/Vista environments. Both Lusbapi, and LComp provide complete functional support for module E20-10. -
Page 18: Optional Software
– this and rest user information about available firmwares of E20-10 is given in table below. You can find out about actual FPGA firmware of Your module E20-10 using utility ModulesViewer which can be downloaded from website L-Card from section Files library. - Page 19 AVR controller and upgrade library remotely (FPGA 2.00.07 firmware has been yet added in which). Compatibility with old software of upper level is existed. Firmware for E20-10 rev.В. In comparison with version 2.00.07, the fault on odd data 2.00.08 interference in ADC buffer in additional data acquisition starting on signal START under dd.
-
Page 20: Installation And Customization
"Recognition of the module". 4.2.2. USB drivers installation from LComp Prior to use module E20-10 with application of LComp library it is required to perform installation tool LComp.exe located on branded CD-ROM in directory \DLL\LComp. In addition, this tool installs to user target computer all necessary files required for operating system during recognition module E20-10 when it is firstly connected to computer USB port. -
Page 21: Recognition Of The Module
In further working with module E20-10 the operating system will already know the location of driver for this type of the device and will load it automatically during product connecting to the computer. In E20-10 revision В the indicator is flashing when data transmitting on USB–it is a natural occurance. -
Page 22: Differences In Usb Driver Of Lusbapi Library
In our case, driver Ldevusb.sys shall be in this list. This means, that to operate with module E20-10 the USB drivers from Lusbapi library of version3.1 or older are used. - Page 23 Then, you should activate the driver upgrade point using left clicking. It should be noted that depending on Windows configuration the information panels of type to alert about failure of driver digital signature and propose to find drivers in Internet may be displayed. Then, you should move to standard information panels “Hardware Update Wizard”...
- Page 24 Windows that drivers installation for module E20-10 is completed successfully and the device is ready for further operation. In general, to operate with E20-10 USB drivers both as of old (version3.1 or older) as new (version3.2 or newer) Lusbapi libraries can be simultaneously installed on computer. The thing is USB driver from exactly which library would be selected by operating system during module connecting to computer.
-
Page 25: Overview Of The Hardware Components And Operation Principles
Four identical analog paths consist of input offset current control circuit, input static commutator, controlled amplifier, active LPF of 3-order. Input offset current control circuit is available in revision В of module E20-10 only. In revision A typical input offset current makes -7 µA (in particular, this current caused overswing to ADC scale negative values under quiescent ADC analog input). - Page 26 In module of revision А the series Aceх FPGA is used, in revision B the more resource- intensive FPGA of series Cyclon is used. These downloaded FPGA of Altera corporation perform full range of fast-acting logic operations in E20-10. FPGA firmware is downloaded from the . L-Card does not rule out FPGA computer through USB at each program initialising of E20-10 firmware upgrading (see p.
-
Page 27: Fig. 5-1. Block Diagram E20-10
разрешения записи в буфер FIFO (рев.В) данных перепада сигнала START конвейерным АЦП Старт-стоп от уровня (триггер START) Стоп по количеству собранных кадров (рев.B) сигнала START (рев. В) Сигнал START в режиме "ведущий" Fig. 5-2. Explanation of data acquisition equipment logic interaction in E20-10... -
Page 28: E20-10 Operating Principle
L-Card library functions, in particular, one of these functions is FPGA E20-10 downloading – this download is required to be performed once upon as E20-10 switching on (see Programmer's manual [1]). -
Page 29: Channel Sampling Principle
5.2.1. Channel sampling principle In E20-10 acquisition frame size can be set of from 1 to 256 (to 8192 ADC paths in FPGA new firmware, p. 3.3.4). The following can be set: random sequence of channel numbers inside the... -
Page 30: Synchronization In E20-10
Master E20-10 should be earlier started in software to collect data, because they should enter in start waiting from master, and in this case, upon slave data acquisition starting completion the data acquisition in masters will be started in hardware and synchronously with slave E20-10. - Page 31 1.0 to 10 MHz. Severe requirements are also posed on SYNC signal on-off time (p.7.1.3). It is natural, that SYNC signal from "master" E20-10 complies with these requirements. Note, that TTL-line DI16/START configurated "on input", electrically has pull-up resistor (providing specific one state of unconnected input), and TTL-line SYNC configurated "on input"...
-
Page 32: Synchronization Modes
5.2.2.1. Synchronization modes Possible synchronization modes for E20-10 are given in tables below. Take note of information about what exactly revisions of E20-10 one mode is implemented. Table5-1. Modes of synchronization on ADC conversion frequency (on SYNC signal) Synchronization Implemented... -
Page 33: Table 5-3. Capability To Set Additional Permit Conditions For Adc Data Recording In Buffer Memory
"on level" data acquisition On signal analog level in selected channel synchronization modes, table 5-3. Table 5-3. Capability to set additional permit conditions for ADC data recording in buffer memory E20-10: Additional conditions Implemented in Notes version E20-10 0 ≤ N ≤ 16777214,... -
Page 34: Table5-5. Acquisition Stopping Conditions
FIFO buffer until data acquisition software stopping from upper level was sent (despite of frame edges). In E20-10 of revision В you may use the configurations on additional recording conditions on signal edge, for example, as shown in diagram, in ADC 3-rd channel. - Page 35 FIFO buffer under "on level" synchronization mode. Thereof, all these data can be rolled back to computer due to their entering to FIFO buffer E20-10 . When synchronizing "on level" analog signal in E20-10 rev. В for software recognition of...
-
Page 36: Fig. 5-3. Synchronization Mode Diagrams
маркер первого кадра marker of the first frame АЦП передан в буфер buffer. FIFO. (если режим маркера FIFO. (if marker mode is FIFO. включён) activated) Record in buffer Record in buffer. Fig. 5-3. Synchronization mode diagrams E20-10 User Manual... -
Page 37: Coding Of Word Size Overloading Sign E20-10 Or Revision А
5.2.3.1. Coding of word size overloading sign E20-10 or revision А In E20-10 of revision А the following coding of word size overloading sign is applied (if the relevant mode is activated): when no overloading, that data are transmitted unchanged, when š:... -
Page 38: Fifo Buffer And Its Overloading Elimination Logic
ADC word size overflow signal is available at ADC chip output LTC2245, it is generated for each ADC sample and this signal is used in E20-10 for this overflow warning . In overflow case ADC uncalibrated code takes one of extreme value -8192 or 8191 – depending on sign of input voltage supplied to ADC input. -
Page 39: Dac Optional
In E20-10 of revision А when the relevant mode is selected, the ADC word size overflow alarm is mixed in 16-bit data format in such a way that under positive overflow the code rather more that 8191will be issued, and under negative overflow –... -
Page 40: Connection Of Signals
The system user shall connect the signals and solder the connectors. Magnetic sweep cable for signal connectors (except cable BNC) are included in delivery package (p.3.3). Installation of signal circuits with connection of signal sources, sensors, etc. to E20-10 module must be carried out by a qualified specialist. -
Page 41: Analog Signal Connectors
AGND +12В -12В Fig. 6-2. Analog output connectors The four analog inputs of E20-10 module connectors type is -BNC plug in socket type with corresponding cable connector of BNC cable plug type. Channel matching is shown in fig. 6-1. The same matching is graphically shown on E20-10 body. -
Page 42: Table. 6-1.On Connectors Analog Signal Assignment
СР-50 connectors (cable parts or adapters) in some cases can cause a damage of plug in connectors BNC in E20-10. Type of DAC analog output connectors and power outputs for E20-10 — 9-contact socket MiniDIN. Contact assignment is shown in fig. -
Page 43: Digital Signal And External Power Connectors
+5 V EN_OE SYNC Fig. 6-3. Digital signal and external power connectors Type of digital input-output signal connectors in E20-10: DRB-37F, relevant cable part of connector — DB-37M. Attention! Metal edging (body) of cable connector DB-37M shall not be connected with any circuit. -
Page 44: Table 6-2. Connector Digital I/O Signals
To active the mode it is required to close circuits EN_OE and GND on cable part of digital signal connectors. If EN_OE input is unconnected the output enable software control mode is activated. E20-10 User Manual... -
Page 45: Characteristics Of Signal Line Inputs And Outputs
— DO16 SYNС Min. 100 kOhm -0.2...+5.2 V ±20 mA if if configured for relative to configured for input output Attention: It is not recommended to unload E20-10 more than 0,7...1 W total power on all output circuits E20-10 . -
Page 46: Power-Off Mode
6.4.2. Power-off mode Module switched off the external power supply source has the following E20-10 input and output signal line characteristics: Table 6-4. Characteristics of signal lines inputs and outputs, off mode Signal Type Input resistance Maximum Maximum permissible permissible... -
Page 47: Limiting Through Currents
6.4.3. Limiting through currents Inside E20-10 circuits AGND, GND, GND*, presenting on module connectors are interlinked (p. 6.5.3). This places certain restrictions on maximum permissible through currents through circuits AGND-GND-GND*. Attention! Maximum permissible through currents exceeding can cause E20-10failure. Table6-5. Maximum permissible through currents... -
Page 48: External Power Supply Outputs Characteristic
6.4.5. External power supply outputs characteristic When collecting currents from E20-10 to power external devices it is required to take into account external power output characteristics. Table 6-7. External power supply outputs characteristic External circuit power supply ±12V source Maximum output current... -
Page 49: Specification And Connection Examples
E20-10 on several important L-Card can not warrant third-party product quality; prior to buy the selected hub it is necessary to be clear maximum speeds on downstream-ports. -
Page 50: Multimodule Connections
GND, GND* and AGND circuits when connecting the devices, please, refer to 6.5.3. Higher levels of through currents are potential in multimodule connections E20-10 (pp.6.5.3, 6.5.4.4-6.5.4.6). Penetration methods: proper grounding, in-phase filters (specific recommendation providing detailed description of connecting case are given - on demand in L-CARD). E20-10 User Manual... -
Page 51: Circuits Gnd, Gnd* And Agnd
E20-10. When connecting E20-10 to external circuits you should remember, that the most proper connecting of E20-10 is that connecting which would not result in through currents passage via circuits: GND—AGND, GND—computer case or AGND—GND—computer case. -
Page 52: Adc Input Connecting
(via direct current) will supply constant voltage of input offset signal of E20-10. For example, if source resistance is of 50 Ohm typical offset voltage will make 0.35 mV, and if 1 kOhm — 7 mV. -
Page 53: On Standard Feeler Oscillographic Gauge Connectivity
We can assume, that in mode 1: 1 the standard gauge of the oscilloscope is rather well matched in frequency band up to 5 MHz with ADV input of E20-10 of any revision, since in 1: 1 DC mode the through resistance of the gauge is not too high, and the inconsistency in alternating current affects the higher frequencies that do not fall within the bandwidth of the ADC input. -
Page 54: How Can You Find Out That The Through-Currents Degrade The Signal-To-Noise Ratio In Your Connection Diagram
If you intend to achieve the best signal-to-noise ratio when connecting ADC single-phase input of E20-10 to an external device (signal source), you must provide zero current (across the frequency bandwidth) passing along the screen of the coaxial cable of ADC input circuit, because, voltage loss on through impedance of the cable screen circuit is largely summed with the voltage of the useful signal at ADC input, that leads to a deterioration in the signal-to-noise ratio. - Page 55 To implement "master-slaves" connection diagram the near located from 2- to 5- pcs. E20- 10 can be connected with twisted pairs by shortest path. Similar circuits of all E20-10 are required to be connected implicitly (fig. 6-3): GND–GND, SYNC–SYNC, START–START. When connections performing with twisted pairs one of the wire in pair should always be a GND circuit.
-
Page 56: Specifications
All E20-10 characteristics given below correspond to computer standard USB 2.0 port connecting. The following specifications indicate the main parameters of E20-10 for its intended operating mode. Attention! E20-10 module performance limits as well as signal line additional features are given in p. - Page 57 Zero offset when ADC input is unconnected Less than 1 mV (typically) for E20-10 of rev. V ADC samples frame parameters: – From 1 to 8192 ADC frames (in firmware 2.00.07 or Frame size 3.3.4 older, see p. arbitrary (programmable) –...
-
Page 58: E20-10, E20-10-I, E20-10-D-I Limits Of The Permissible Relative Basic Error Of Measuring The Ac Voltage
X is the value of the specified voltage subrange. 3 X - is the value of the measured voltage. 7.1.2. E20-10-1, E20-10-1-I, E20-10-D-1-I: limits of the permissible relative basic error of measuring the ac voltage Frequency range of input... -
Page 59: Adc Synchronization System
STARТ signal, max. – One period of ADC start frequency – SYNC signal, max. 20 ns Synchronization signal delay time dispersion in different modules E20-10: ±8 ns – SYNC signals ±one period of ADC start frequency – START signals START external signal duration, min. -
Page 60: Digital Lines
0...+0.4 V ("logical zero") Min. 2.4 V ("logical unit"). (comply with series 74HCT, TTL/CMOS 5 V) -0.2...+0.6 V ("logical zero") Input logic levels +2.4...+5.0 V ("logical unit"). (comply with series 74HCT) Attention! Digital lines performance limits see p.6.4 E20-10 User Manual... -
Page 61: Power
E20-10 the module will be operating but it will not operate from such card under thermal protection actuating E20-10 normal operation is not provided... -
Page 62: Physical Properties
Connector type Digital I/O DB-37F Connector type USB DUSB-BRA42-T11 Analog output connector type MDNR-9J BNС – female chassis jack plug Analog input connector types Power connector type DJK-02A Mean time between failures Min. 40000 hours Service life 10 years E20-10 User Manual... -
Page 63: Operation Conditions
7.6. Operation conditions 7.6.1. Normal conditions Parameter Value Normal operating conditions: – environment temperature, °С 20±5 – relative humidity, % from 30 to 80 – air-pressure, kPa from 84 to 106 7.6.2. Operating conditions Parameter Value For stability under climatic influences, the converters, in addition to the versions with the letter index I, correspond to GOST 22261, group 3 with an extended range of operating temperatures: –... -
Page 64: Problems Solution Under Abnormal Situations
Suspicions on the Your program may not Check the suspect functions of E20-10 using programs delivered by L-Card (or actually failure of E20-10 operate properly onE20- equipment appeared 10or E20-10 is actually applying provided programming examples). -
Page 65: How To Be Consulted
• What software and what device driver are used (indicate the version and other information which would help us to understand you). • What software user settings of E20-10 are used (ADC conversion frequency, input subrange, the number of channels sampled, duration of interframe delay, ADC synchronization and data acquisition start modes). -
Page 66: Bibliography
M.: M.: L-Card, 2010. Terminology - is a periodically updated L-Card website section. FAQ (frequency asked questions)- is a periodically updated L-Card website section. 7. National Semiconductor. A Practical Guide To Cable Selection. - Application Note 916 8. -
Page 67: List Of Tables
Fig. 3-2. E20-10 revision В appearance ....................15 Fig. 5-1. Block diagram E20-10 ......................... 27 Fig. 5-2. Explanation of data acquisition equipment logic interaction in E20-10 ........27 Fig. 5-3. Synchronization mode diagrams ....................36 Fig. 6-1. Analog input connectors ......................41 Fig.
Need help?
Do you have a question about the E20-10 and is the answer not in the manual?
Questions and answers