FDI2056 User's Manual
Contents
1. This command reports only if an encoder index condition has been detected The value returned is a composition of index detection on every channel starting from bit 1 for channel number 1 and going up to bit 9 for channel number 9 Each channel in error will result in its corresponding bit being set to one i e an index found on channel 9 will result in the command returning 2 512 This register is automatically cleared after reading Index found on channel oO Unused always 0 to When set to 1 index was found on channel 1 2A Ditto respectively for each channel numbered 2 to 13 a When set to 1 index was found on channel 14 i Unused always 0 4 3 5 CONTRol ENCoder POSition The command returns the current position of the encoder 5 Contact Information If you encounter any difficulties in configuring or using the FDI2056 please do not hesitate to contact us by email at info metrolab com MetTrrolab 11 www metrolab com2. MerrolaS Magnetic precision has a name Fast Digital Integrator FDI2056 Getting started with the FDI2056 Version 1 0 Revision 1 1 May 2014 Getting Started with the FDI2056 v 1 0r 1 1 05 14 Copyright 2014 Metrolab Technology SA REVISION HISTORY v 1 0 r 1 0 March 2013 First release v 1 0 r 1 1 May 2014 Fix front page graphics m ETR oloab ii www metrolab com Getting Started with the FDI2056 v 1 0r 1 1 05 14 Copyright 2014 Metrolab Technology SA CONTENTS GETTING STARTED 1 introduction 2 First steps 3 Using the instrument 4 Setting up a rotary encoder 4 1 Voltage selection 4 2 Configuring the decoder 5 Contact Information m ETR olab iil www metrolab com Getting Started with the FDI2056 v7 0 r1 1 05 14 Copyright 2014 Metrolab Technology SA 4 GETTING STARTED 1 Introduction When powered on the Fast Digital Integrator FDI2056 will check if its working mode is set to native Ethernet VXI SCPI compliant mode or PDI 5025 emulation mode During the whole start up operation the instrument shows INIT on its display When set in its native mode the communication to the instrument is established using the Ethernet connector located on the right of the CPU board the nearest to the extractor Once properly started the instrument will report the current gain on all integration channels 2 First steps 1 Finding your instrument on the network
3. Once powered the FDI2056 display will report INIT during the whole boot process which can take up to 1 minute When booted the FDI2056 will display the current gain on each integration channel During the boot process the instrument will ignore any commands issued by the host computer The FDI2056 is configured to acquire its IP address using the DHCP protocol The NetBIOS over TCP IP is activated on the instrument allowing you to ping it using its hostname to retrieve the IP address attributed during the DHCP process The hostname of any FDI2056 is constructed as follow FDI2056 XXXX where the 4 digit XXXX number is the second part of the instrument s serial number The serial number can be found on the label located on the rear of the instrument i e an instrument having the serial number S N 2056 0006 is attributed the hostname FDI2056 0006 Please note that the IPv4 link local protocol is also activated If your local network fails to provide an IP address using the DHCP protocol the FDI2056 will be attributed an IP address in the range 169 254 0 0 to 169 254 0 16 As such using a PC connected directly to the FDI2056 using an Ethernet cable will let you communicate point to point 2 Install the FDI2056 Remote Manager Software MetTrrolab 1 www metrolab com Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA Launch the setup exe application located in the folder
4. FDI2056 Remote Manager Installer FULL Volume 3 Setting up the communication Launch the National Instruments NI MAX software x Network Devices Measurement amp Automation Explorer o fee File Edit View Tools Help 4 amp My System a4 Add Network Device Hide Help a ig Devices and Interfaces Ep BV61544 100 4 Slot Chassis Chassis 1 Product Name Rah Ezi d Network Devices 7 Syl Serial amp Parallel Adding Network amp Software Devices GY Remote Systems Network Devices contains network and wireless devices available from this system With Network Devices you can view and configure devices connected over a network What is a network z Submit feedback on this topic ni com support for technical support Cil r El Network Devices Right Click on the Network Devices sub tree and select the menu Create New VISA TCP IP Resource The following dialog box will then appear m ETR o aob 2 www metrolab com Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA Peinstrumen INSTRUMENTS Use this option to select from a list of W41 17 LON Ll Instruments detected on your local subnet G Manual Entry of LAN Instrument Use this option if your 1 17 LAN Ll instrument i on another network D Manual Entry of Raw Socket Use this option to communicate with an Ethernet device over a
5. Project Operate BESS Window Help u bc Measurement amp Automation Explorer Instrumentation Ne a Find Instrument Drivers F m _ Ca At this point you will have to enter your National Instruments credential the registration is free and after searching for Metrolab Technology in the manufacturer list you will have to select the instrument model Once this is done you will be able to download and install the latest instrument driver When the installation has been completed you will find the driver API directly in your tool palette along with all instrument drivers already installed in your system A Functions Programming Measurement I O Vision and Motion Instrument I O Mathematics i Instrument Drivers Signal Processing Sues ial Data Communication oll Instrument Drivers ae Metrolab FDI2056 sao AGI4401p eae wpzeash FDIZO5 ES Design amp Simulation a 3 Metrolab FDI2056 SignalExpress VISA Agilent 34401 Fluke 884X S ifr2025 Metrolab FDI Express a c amp Input Signal Analysis Output g gt b pr bF b CONFIG ACTION is _paTa P foal Se Configure Action Status Data Sig Manip Exec Control Arith amp Com Addons Favorites User Libraries Select a VI A Change Visible Palettes Choosing a VI from the Example sub menu is generally a
6. eports only if an encoder error is present The value returned is a composition of all error condition on every channel starting bit 1 for channel number 1 and going up to bit 9 for channel number 9 Each channel in error will result in its corresponding bit being set to one i e an error on channel 1 and 2 will result in the command returning 2 2 6 This register is automatically cleared after reading Bit number Questionable Channel 0 Unused always 0 1 When set to 1 channel 1 is questionable 2 13 Ditto respectively for each channel numbered 2 to 13 14 When set to 1 channel 14 is questionable 15 Unused always 0 4 3 3 STATus OPERation INS Trument SUMmary CONDition One register exists for each channel The value returned is a set which specifies which part of the instrument s channel is operating Bit numbered 10 of this register monitors the Index signal activity This register is automatically cleared after reading Bitnumber Channel current operation or reported condition 4 Measuring 5 Waiting for trigger 6 Waiting for arm 7 Correcting 8 A parameter of the channel has just changed 9 Data are available and might be fetched MetrRolab o gt wmetokba Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA Bitnumber Channel current operation or reported condition 10 The index signal has been detected 4 3 4 STATus OPERation ENCoder CONDition
7. good start All examples are fully functional and configure some very basic and common measurements 2 Writing your own application using any other language MetTrrolab 4 www metrolab com VI Tree vi te UTILITY Utility Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA The IVI foundation http www ivifoundation org Default aspx provides all drivers necessary to write an application using C C LabWindows CVI and Matlab All explanations are available on their web site If you intend to pursue this path please do not hesitate to contact us as we will be happy to provide you with basic starting help Contact information can be found at the end of this manual 4 Setting up a rotary encoder Every FDI 2056 integrator channel is equipped with a micro D connector The pins are defined as follow Pin n Cable color Function 1 Black B 2 Brown B 3 Red A 4 Orange A 5 Yellow 5 Volts or 3 3 Volts Factory default 5 Volts A re armable fuse safely prevents the system from providing more than 0 750 Amps 6 Green Ground 7 Blue Error Input 8 Violet Index 9 Grey Index The shell is connected to the chassis ground When using a single ended encoder all signals must be connected to the active high version of the signals A B Index When using differential signals you must use the various pairs provided which are then fed to a differential to sing
8. le ended driver The output polarity of the driver follows the polarity of the active high signal i e if A goes high and A goes low the output of the driver will go high 4 1 VOLTAGE SELECTION A jumper located on the daughter board of each of the FDI2056 integrator channels can be changed to provide either 3 3 Volts or 5 Volts on pin 5 of the MetTrrolabh 5 www metrolab com Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA micro D connector To change this jumper you must be extremely cautious and proceed following the instruction notice below NOTICE Switch the system off Handle the FDI2056 channel card with caution to avoid damage due to electrostatic discharge Ground yourself before handling the card the best is to use a grounded wrist strap during installation To provide additional assurance that the card does not vibrate loose for example during shipping the screws behind the extractor lever are tightened Using a cross type screwdriver gently loosen the two screws located on each end of the board gt Press the red lock levers with your thumbs Push the black extractor levers outward to extract the card and Gently pull the card out of the slot Be careful see the note in red below P gt WARNING The FDI2056 channel card has components on the underside that just barely clear the faceplate of adjacent cards Exercise extreme cauti
9. on in order not to damage the card when you slide it into the crate Slide it out slowly and lift it slightly to keep the components from snagging On a multiple channels system proceed by removing the channel which is located the furthest away from the CPU board i e the highest slot number MetTrrolab 6 www metrolab com Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA gt Change the jumper depicted below according to your voltage needs A g sv Encoder _ 3 3V Encoder i Merrolah FDI2056 gt When inserting the card back Push the levers outward Push the card in until the black plastic extractor levers touch the crate and Push the levers inward until you hear both locks click On a multiple channels system proceed by reinserting the channel which is the nearest to the CPU board i e the lowest slot number E Tighten the screws behind the extractor lever MetTrrolab 7 www metrolab com Getting Started with the FDI2056 v 1 0r 1 1 05 14 Copyright 2014 Metrolab Technology SA 4 2 CONFIGURING THE DECODER The encoder is believed to provide a minimum of two to a maximum of four signals a mandatory pair of signals denoted A and B which are in quadrature respectively to each other an optional Index input and an optional Error input The decoder located on each FDI2056 channel defines the forward direction as the input A signal in advance in
10. relation to the input B signal i e the rising edge of signal A must precede the rising edge of signal B The purpose of the Index signal is to define an absolute mechanical position This signal is used by the decoder to reset its internal position tracking counter lf present the Index signal must be active high and must have a minimum width of at least 90 The Index A and B signal must be high at the same time To prevent any wrong pulse detection the duration of the Index signal must not be shorter than the smallest duration of the high state of the composed signal A plus B The purpose of the Error signal is to signify that the encoder is not performing correctly If available on your encoder the Error signal must be low when no error condition is present Knowing this it is now possible to configure the decoder by adapting the output of your encoder using the command CONTRo1 ENCoder CONFigure 4 2 1 CONTRol ENCoder CONFigure This command accepts as a parameter a quoted string constituted of three fields separated by a comma These fields follow these definitions First field SINGle DIFFerential Specifies if the encoder provides differential or single ended signals Second field A A B B INDex INDex ERRor ERRor The slash symbol preceding the signal name states that the signal must be negated before use If either or both of the INDex ERRor signals are omitted the configuration will consider
11. s given Any pulse loss will inevitably lead to a positional drift 4 3 MONITORING THE DECODER Once configured it is possible to monitor the behavior of the decoder For that purpose five 5 commands are available and are described below 4 3 1 STATus QUEStionable INS Trument SUMmary CONDition This command reports whether part of the instrument is questionable or not One register exists for each channel The value returned is a set which specifies which part of the instrument s channel is questionable The specific bit monitoring the decoder is the bit 11 This register is automatically cleared after reading Bitnumber Channel questionable part 0 Voltage An over range condition occurred during the last measurement 8 Calibration The calibration date is overdue This is a warning only as the calibration interval is based ona recommendation only It is up to the user to decide whether the instrument must be recalibrated or not following the user s internal company procedures 9 Trigger More than one trigger event was detected between two m ETRO laob 9 www metrolab com Getting Started with the FDI2056 v 7 0 r 1 1 05 14 Copyright 2014 Metrolab Technology SA Bitnumber Channel questionable part data acquisitions 10 Integration The internal integration accumulator over ranged 11 Encoder The decoder seems to have missed a pulse or is in error 4 3 2 STATus QUEStionable ENCoder CONDition This command r
12. specific port number lt Back Ener ae After having pressed the Next button the system will search all VXI 11 compliant instruments over your sub network Once this operation is completed a list of all instruments found on is displayed D Manually specify address information of LAN instrument Select instrument s detected on local subnet Status Some Vosl 17 LANCI instruments were found Select one or more resources and click Next or Finish TCPIPO FDI 2056 0008 inetO IN STA Include legacy non 488 2 devices when searching Refresh List Select All De select All etek ies sh Tene Fa Select the FDI2056 by highlighting it on the list and then press the Finish button You are now ready to communicate with the instrument MetTrrolab 3 www metrolab com Getting Started with the FDI2056 v 1 0r 1 1 05 14 Copyright 2014 Metrolab Technology SA 3 Using the instrument Now that communication is established you may choose to operate the instrument using the software provided by Metrolab Technology SA modifying it or by writing your own application software 1 Writing your own application using LabVIEW A full driver is provided for LabVIEW You may freely download it from our website http download metrolab com or by installing the driver directly in LabVIEW Menu Tools gt Instrumentation gt Find Instrument Driver 3 Untitled 1 Block Di File Edit View
13. these signals as absent and will behave accordingly Third field ROTational LINear lt numerical value gt Specifies if a LINear or a ROTational encoder is used The numerical value specifies the number of lines found on the encoder The numerical value will be ignored for linear encoders Using these definitions all the following combinations are valid SING A B ROT 256 Signals are singled ended Aand Bare used directly No Index and no Error signals are provided This is a rotational encoder with 256 lines per turn m ETRO Joly 8 www metrolab com Getting Started with the FDI2056 v7 0 r1 1 05 14 Copyright 2014 Metrolab Technology SA DIFF A B IND LIN Signals are differentials Aand Bare used directly an Index signal is provided but must be inverted No Error signal is provided This is a linear encoder SING A B IND ERR ROT 1024 Signals are singled ended Aand Bare inverted before being used The encoder possesses an Index and an Error signal which are both active high This is a rotational encoder with 1024 lines per turn 4 2 2 CONTRol ENCoder POSition Setting an absolute position for linear and rotational encoders without index is done by using the command CONTRo1 ENCoder POSition followed by a value stating the current encoder position Please note that there is no possible way to detect a positional error with such a device as no absolute mechanical position i
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