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Manual EN V1.4 - ASTECH Angewandte Sensortechnik GmbH

1. ASTECH GmbH Page 79 Profibus LDM51A Manual Octet Bit Type Output 48 57 10 byte Serial number 58 59 Signed 16 Laser temperature in C 60 Byte Reserved unused 61 Byte Reserved unused 8 14 Monitoring Set to a trigger time of 500 ms a watchdop internal to the PU monitors the functioning of the module The following functions are monitored The main loop with Profibus requested processing The laser control The update function In case of transient errors ESD program error the module can be started again after a watchdog reset Each reset increments the watchdog counter by one Other reset causes are also counted Spike detection reset SW reset Programming and debug reset Brownout reset monitoring of the operating voltage External reset Power On reset Page 80 ASTECH GmbH LDM51A Manual Maintenance 9 Maintenance 9 1 Maintenance by the user Please note Dust on optical glass surfaces transmitter and receiver optics can be removed with a blower brush Don t clean glass surfaces using cleaning agents containing organic solvents In case of heavy pollution please contact the manufacturer Isopropyl alcohol is suitable for cleaning the device Do not use any solvents Do not open the device otherwise the warranty obligations shall cease to apply Do not loose any screws of the device 9 2 Firmware update Firmware updates of the sensor electronics of t
2. 11 Accessories Options 11 1 RS 232 cable for LDM51A For parameter setting an optional programming cable is available to link the LDM51A with a PC COM port RS 232 The use of the PC software LDMTool is recommended Table 21 Pin assignment of programming cable PC sided Pin SUB D9F Colorcode Meaning SUB D 9 F RS 232 PC COM Shield Cable shield 3 brown TxD 2 white RxD 5 blue GND Table 22 Pin assignment of programming cable LDM51A sided Pin LDM51A Color code Meaning LDM51A Shield Cable shield 3 white TxD 10 violet RxD 2 blue GND 9 red VCC 10 V 30 V DC L grey pink GND Please use only high quality shielded cable RS 232 cable TxD and RxD have to be crossed 11 2 Connection box TCB30xA A junction box with built in terminal block and accessories is available optionally ASTECH GmbH Page 85 Accessories Options LDM51A Manual 11 3 Adjustment bracket JW51x The adjustment bracket enables the alignment of the device to the target It allows a rotation of 45 in two axes 11 4 Software LDMTool from version 4 8 A demo version of the software LDMTool is included in the delivery By purchasing a license number the software becomes a full version Parameter setting and numerical display of measured vales are available also with the demo version see Figure 17 Program LDMTool Page 86 ASTECH GmbH LDM51A Manual Part numbers 12 Part numbers Table 23 Part numbers Part No
3. LDM51P can be connected to any Profibus DP structure The connected Profibus DP master has to be able to send a parameterization The master configuration tool usually configuration software must support the parameters of the GSD file 8 3 GSD File The GSD File is named ASTECH_LDM51P GSD It is part of the ASTECH CD The current GSD is for downloading available under the following address http astech de en download html The inclusion of the GSD file into the master configuration tool should be carried out to the documentation of the configuration tool 8 4 Slave address The Profibus slave address can be set under consideration of the other Profibus slaves in the range of 0 126 The address can be set with command SSAx via the serial interface or via the LDM51P keys and the GUI graphical user interface The documentation of the master configuration tool will inform how the slave address has to be changed via the master configuration tool The default address is 4 The slave address will be stored permanently in the EEPROM and will be available even after power failure ASTECH GmbH Page 69 Profibus LDM51A Manual If several slaves are operated on a Profibus master they must have different addresses and have to connect one by one 8 5 Bus termination The Profibus termination is to realize externally The supply voltage of 5 VDC will be supplied via Profibus OUT The 5 VDC are isolated galvanically from th
4. Manual LDM51A Firmware Version from 5 14 Version 1 4 LDM51A Manual Dear User You are advised to carefully read this User Manual before turning on the Laser Distance Sensor LDM51A for the first time This is necessary to ensure that you will be able to use all the capabilities and features provided by your new purchase This product is subject to ongoing technological developments Editorial deadline August 2014 Firmware version gt 5 14 Manual version V 1 4 File Manual LDM51A EN V1 4 docx Note Proper care has been used in compiling this document No liability will be accepted in the event of damage resulting from the failure to comply with the information contained herein Revision history Manual Version Date Changes 1 4 12 03 2015 Device types added 1 3 30 07 2014 New design ASTECH GmbH Schonenfahrerstr 5 D 18057 Rostock Internet www astech de E Mail info astech de Telefon 49 0 381 44073 0 Telefax 49 0 381 44073 20 Page 2 ASTECH GmbH LDM51A Manual Content l Content 1 General Information nsere eeraa enaena e Eiere EEEE 8 2 KEE Te 9 2 1 Basic safety aAvicemamasssaase sve taa nen k Taka naan AT aar anan AEAT KANA UKA 9 2 2 Safety advice for Laser Class 72 10 2 3 Advice for operating device uuuuuoousnnn nnam aan nanna aaaee 10 2 4 leie EE 12 2 5 BIT DIE 12 3 Operating conditions edteedezdediedeh eger seende eler Ee deed 13 3 1 Electrical installation
5. 2147483648 2147483647 As LDM51A is a linear encoder and measures absolute distances the parameters code sequence Scaling function control Measuring units per revolution and Page 76 ASTECH GmbH LDM51A Manual Profibus Measuring range in measuring units of the encoder profile are ignored 8 13 Diagnostic data Table 18 Profibus diagnostic data Class 2 functionality 0 1 Octet Bit U P W N D U W N e O Commissioning Diagnostic Information diagnostic 0 6 byte Normal diagnostic 1 16 byte Class 1 diagnostic 1 61 byte Class 2 diagnostic Type Output Profibus default diagnostic Byte Diag state 1 Byte Diag state 2 Byte Diag state 3 Byte Master address Word Slave ident Class 1 diagnostic Byte Extended diag header length class 1 0A class 2 37 Byte Alarms unused Bool Unused Bool Class 2 functionality on off Bool Commissioning diagnostic on off Bool Unused Bool Reserved for future use Bool Unused Bool Unused ASTECH GmbH Page 77 Profibus LDM51A Manual Octet Bit Type Output 7 Bool Unused 10 Byte Encoder type 7 absolute linear encoder 11 14 Unsigned 32 Signle turn resolution 100000nm 0 1 mm 15 16 Unsigned 32 No of distinguishable revolutions unused 0 Class 2 diagnostic 17 0 Bool E1001 unecpected error 1 Bool E1002 mail box error 2 Bool E1003 mutex error 3T Bool 18 19 O Bool E1101 pc usart error 1 Bo
6. PB 1 50 0 0 100 0 float 32 float 32 mm cm dm m in 8 in 16 in ft yd ASTECH GmbH Page 43 Description of commande LDM51A Manual Command Class Command SFx OFx SDwxyz BRx SBx RSx ASx TEnn SEx SPx HEx y Qliw xyz Description Scale factor Distance offset Data format of the serial interface ouput Baud rate Stop bit of the serial output Selection of the serial interface Autostart Terminator for the output of measured values Behavior of outputs in case of faulty measurements Seperator for parameters Switching threshold for switching the heating on and off Q1 switch output with switching threshold switching range Swichting hysteresis and State level Standard s 0 0 0 0 0 0 115200 1 0 232 410 0 100000 2500 1 Range s 10 000 10 000 5000000 5000000 Parameter w 0 5 x y z O oder 1 600 1200 2400 4800 9600 14400 19200 28800 38400 56000 57600 115200 128000 230400 256000 0 5 1 0 1 5 2 0 232 422 485 IRDA 1 10 0 1 oder 2 15 40 40 integer Fehler Verweisguelle konnte nicht gefunden werden 32 Bit Interger 32 Bit Interger 32 Bit Interger y20 Oor1 Page 44 ASTECH GmbH LDM51A Manual Description of commande Command Command Class O2w xyz O3w xyz QAx y PB TRI x y TROxy Additional DF Commands DN LF LN SDT SH DR Description
7. PR Resets the parameters to firmware defaults SA w Prints Changes number of to be fused measurements Co domain 0 50 0 auto MF ei Prints Changes measurement frequency Co domain 0 0 100 0 m su su Prints Changes the expected ranged for measurements in decimillimeters mm ss Prints Changes the unit of the measurements Co domain nm cm dm m in 8 in 16 in ft ya OF sd Prints Changes the offset in decimillimeters Co domain 5000000 5000000 SD tu b b 4b Prints Changes the output format Ql sd tu d b Prints Changes the parameterization of switching output Ql 02 d su d b Prints Changes the parameterization of switching output Q2 Q3 d tu d b Prints Changes the parameterization of svitching output 03 QA fu su Prints Changes the parameterization of the analog switching output QA TRI tu tu Prints Changes the parameterization of the input trigger TRI TRO su su Prints Changes the parameterization of the output trigger TRO BR su Prints Changes the baudrate of the serial port Co domain 600 1200 2400 4800 9600 14400 19200 28800 38400 56000 57600 115200 128000 230400 256000 SB f Prints Changes the stopbits of the serial port Co domain 0 5 1 0 1 5 2 0 as su Prints Changes the mode of the serial port Co domain 232 485 422 Ae du Prints Changes the autostart commands Co domain 1 10 TE Su Prints Chang
8. Please note that this service is subject to a charge Page 12 ASTECH GmbH LDM51A Manual Operating conditions 3 Operating conditions 3 1 Electrical installation conditions For the operation of LDM51A use only a DC voltage of 10 V 30 V AN The limit values for the input voltage have to be observed Do not wire inputs as outputs All outputs are short circuit proof The housing is galvanically separated from the sensor electronics assembly The interference resistance at electrostatic discharge ESD is 4 kV according to EN 61326 1 Table 1 Electrical installation conditions Electrical installation conditions of LDM51A Supply voltage 10V 30 V DC direct current voltage Power consumption lt 10 W without heating 3 2 Operating and storage conditions Operating temperature 10 C 60 C special type 40 C 60 C Stroage temperature 40 C 70 C Air humidity 15 90 not condensing A The mentioned operating and storage conditions have to be observed When the operating temperatures exceed the permitted values the device will not be switched off automatically The continuous overheating of the device will reduce the lifetime of the laser diode 3 3 Appropriate use The device is intended for the following applications Distance measurement and output of measured data via RS 232 or RS 422 interface analogue output and digital outputs It should be noted ASTECH GmbH Page 13
9. same function but coming from different suppliers For using LDM51P at the Profibus the encoder profile of the Profibus order No 3062 of PNO is supported For this LDM51P serves as linear encoder Under the encoder profile LDM51P can work as Class1 or Class2 recommended encoder All versions are implemented via GSD file In addition to profile specific data the LDM51P provides specific settings which refer to the control of the laser and to diagnostics ASTECH GmbH Page 71 Profibus LDM51A Manual Profile Class Encoder Class 1 Class 2 Functions Input only Simple diagnostics Minimum parameter setting Input and output Preset Extended diagnostics Extended parameter setting LDM51A Class 1 Class 2 8 9 Configuration data See Encoder profile Additional manufacturer specific diagnostics and parameter setting The configuration of the input and output data can be selected as follows Table 15 Configuration data Mandatory Class 1 D1 hex Class 2 F1 hex Class 2 D3 hex Class 2 D3 E1 hex Class 2 98 A4 hex optional Class 1 DO hex Class 2 FO hex 2 words inputs consistency 2 words of input data 2 words of output data for preset value consistency 4 words inputs consistency 4 words of inut data 2 words of output data for preset value consistency 9 bytes of input data 5 bytes of output data consistency Not realized Not realized 8 10 Cyclical data exchange input slave
10. 0 Parametrization of switching output 02 02 0 1000000 2500 0 Parametrization of switching output 03 03 0 1000000 2500 0 Parametrization of the analog switching output QA QA 0 1000000 Unit for the distances MUN mm Trigger input TRI 0 0 Trigger output TRO 0 0 Autostart commands AS DT Output format SD 0000 Terminator TE 0x0D0A Scale factor SF 0 000 Error mode SE D Separator SP Ox2C standard tracking mode from menu MCT 0 Figure 20 Parameter reset with PR command DR Release of cold start DR carries out a cold start of the LDM51A and actually simulates an interruption of the supply voltage This command is useful for a test if Autostart command was changed for example MW Measurement window Parameterizes the scope of a measurement window by start x and end y Only measured values within the measurement window will be put out For example the measurement window can be used to ASTECH GmbH Page 55 Description of commande LDM51A Manual Eliminate interfering objects before or behind a measurement range Define a measurement range If there is no target object within the defined measurement window an error message will be generated cyclically E1203 Target with unsuitable reflectivity E1207 A target before or behind the measurement window is recognized Query MW Set MWx y Range of parameter x Resolution 0 1 mm Range of parameter y Resol
11. 15 ata temperature of 25 C 1x DP VO Slave IEC 61158 IEC 61784 9 6 kBaud 12 MBaud 0E36 HEX Automatic external Can be set via display or SSA command LDM50E36 GSD PNO Profile Encoder Class 1 2 Configuration of measurement parameters switching outputs trigger connection and starting behavior Output of measured distance values or error messages monitoring of internal device temperature Storage of all parameters and PB address in NVRAM 200 kHz 25us Pause Difference signal RS 422 24 bit binary or Gray encoded adjustable ASTECH GmbH Page 19 Device description LDM51A Manual Interface 1 validity bit Potential separation 500 V for signal input LSB BitO MSB Bit 23 optional Bit 24 Page 20 ASTECH GmbH LDM51A Manual Device description 4 4 Laser beam image The laser beam of the LDM51A has a divergence of 0 13 mrad x 0 17 mrad width x height The diameter of the laser spot in the exit lens measures 4 mm The table below shows the size of the laser spot in dependence on the distance The laser spot has an elliptical shape Table 4 Laser beam image Distance Laser spot width Laser spot height 1m 5mm 5mm 5m 3mm 3 mm 10m 4 mm 5mm 50 m 5mm 7 mm 100 m 26 mm 34 mm 200 m 52 mm 68 mm 400 m 104 mm 136 mm 500 m 130 mm 170 mm The above mentioned laser spot holds approx 50 of the entire laser energy An aura with less energy forms around the spot 4 5 Mechanical integrati
12. 485 See chapter 5 Interface description Outputs The LDM51A has three switching outputs an analogue output 4 20 mA All outputs are parameterizable Optional interfaces The LDM51A can be equipped with an additional Profibus and or SSI Interface Page 16 ASTECH GmbH LDM51A Manual Device description 4 2 Device Types The LDM51 is available in different designs and with different interfaces The following devices are available Table 2 Device types Type Analog output LDM51A Yes LDM51A h Yes LDM51P LDM51P h LDM51S LDM51S h LDM51SP LDM51SP h 4 3 Technical Data Table 3 Technical data Measurement properties Measurement principle Measured parameter Measuring range S total Onto Oralite 5200 target 3M 3279 special target Onto natural surfaces Measurement accuracy Up to 20 Hz measuring freguency All measuring freguencies Resolution of measured values Measuring period minimum Profibus SSI Heating Yes Yes Yes Yes 5 yes 3 Yes Yes Yes Yes yes Yes yes Pulse reflection mixing method Distances 0 15 m 500 m 50 m 500 m 0 15m 100 m 0 15 m 100 m 1mm lt 2 5 mm 0 1 mm 10 ms 1 Range for natural diffusely reflective surfaces dependent on target reflectivity stray light measuring frequency and environmental conditions Eor single measurement 1 Sigma ASTECH GmbH Page 17 Device description LDM5
13. C The LDM51A user must make sure that the specified ambient temperature operating temperature is adhered to The LDM51A will not be switched off automatically when the temperature is above or below the defined temperature range PA Parameter setting A list of all parameters is output via the serial interface Baudrate of serial port BR 115200 Stopbits of serial port SB 1 Serial port mode RS232 422 485 RS 232 Average SA 1 Measurement frequency MF 0 0 Minimum distance from target in mm 10 MW 5000000 Maximum distance from target in mm 10 MU 5000000 jOffset in mm 10 OF D Parametrization of switching output 01 Q1 0 1000000 2500 0 Parametrization of switching output 02 02 0 1000000 2500 0 Parametrization of switching output 03 03 0 1000000 2500 0 Parametrization of the analog switching output QA QA 0 1000000 Unit for the distances MUN mm Trigger input TRI 0 0 Trigger output TRO 0 0 Autostart commands AS DT Output format SD 0000 Terminator TE Ox0DOA Scale factor SF 0 000 Error mode SE D Separator SP Ox2c Standard tracking mode from menu MCT Figure 19 Output of the PA command D ASTECH GmbH Page 51 Description of commande LDM51A Manual 7 7 Command for parameter setup Parameters are set via serial interface The command will be transferred to the LDM51A with the final charac
14. Conditions suuossoss naa anna aaaeeen 13 3 2 Operating and storage Conditions 13 3 3 APPIO let 13 3 4 Improperly use error sources sesccsccccecsesssaeceeececsesteaeseeeeeeeeees 14 4 Device description 16 4 1 General device description cececcesessececececsessaeeeeeeecsessaseeeeeeees 16 4 2 Rue 17 4 3 Technical Data corner nr EEN ER 17 4 4 Laser beam magee varusteita sa eratteskevoese ean els eeh EN 21 4 5 Mechanical integration requirements nenne 21 4 6 Connector pin asslignmentzs nonnii ke ke keen kernens 23 5 Interface descriptiOn s 0ui isenise saa inssin kaa nama haen aN ninina ekaiak 24 5 1 interface OVERVIEW eet segeeE deeg i n ka esn Eed DESEN 24 5 2 Serial interface RS 29371 25 5 3 Serialint rfac RS 422 1 agnes eege I KAAN EER 26 5 4 SerialinterfaceRSABS uanede render ET KAA SAAMA 27 5 5 SSI Synchronous serial interface u u sssseenesssssnresseesnennnee 28 5 6 Profibus mterf cer EE 31 5 7 01 02 03 Digital switching output oss eseeeee 32 5 8 QA Analog output 5 9 TRI TRO RTE 6 Start Up EDMSTA eege ebe degen Eed dee s aN 6 1 Preparation Of Start Up osioissa iiaia aa iaia 6 2 Start Up checklisten iseseisana aa aaee REEERE 6 3 Ranges and accuracies ccccecccccessssseeesecececseseeaeceeeeecsesnsaeeeeeeseseeees 6 4 Measurement involving moving targets 7 Description of commande ASTECH GmbH Page 3 Content LDM51A Manual 7 1 Overview
15. Name 10 2070 00 LDM51A 10 2070 01 LDM51A h with heating 10 2071 00 LDM51S with SSI interface 10 2071 01 LDM51S h with SSI interface and heating 10 2072 00 LDM51P with Profibus interface 10 2072 01 LDM51P h with Profibus interface and heating 10 2073 00 LDM51SP with SSI and Profibus interface 10 2073 01 LDM51SP h with SSI Profibus interface and heating 11 2000 00 Power supply 24V 1A Euro 1m 11 0001 00 USB RS 232 Interface converter 0 2m max 460800 Baud 12 2000 01 Junction box LDM51A 12 2018 00 Adjustment mounting bracket LDM51A 15 2001 00 RS 232 cable D SUB9F Terminal 2m 15 2003 00 Interface cable LDM51A 2 m 15 2003 01 Interface cable LDM51A 5 m 15 2006 02 Interface cable LDM51A 10 m 15 2006 03 Interface cable LDM51A 15 m 15 2006 04 Interface cable LDM51A 20 m 15 2006 05 Interface cable LDM51A 50 m 15 2006 06 Interface cable LDM51A 30 m 15 2006 08 Interface cable LDM51A 30 m 90 12 2010 00 Reflective foil matt white A4 11 0006 00 ASTECH USB Stick Documentation and Software 17 2000 00 License number for PC Software LDMTool Note Several sensors are available as packages including sensor cable manual and CD Set ASTECH GmbH Page 87 EG Declaration of conformity LDM51A Manual 13 EG Declaration of conformity C We herewith declare represendted by the signatories that the following designated product Laser distance sensor LDM51A agrees with the Directive of Electromagnetic Compatibility
16. Operating conditions LDM51A Manual Operation with correct supply voltage Compliance with environmental conditions the operating and storage temperature Protection of windows against fogging and soiling Using data lines with specified signal levels Observing of guidelines in this manual Measurement through optically transparent material Measurement through optically transparent materials such as glass optical filters acrylic glass etc can lead to erroneous measurement results When measuring through optically transparent material use the function measurement window By using this function due to setting a fixed measurement range a wrong measurement caused by an optical medium in front of the laser may be avoided Please take care that the surface of the medium is clean and clear 3 4 Improperly use error sources The device may only be used when the safety advice described in chapter 2 is observed The non observance of the safety advice can lead to damages of the device or to injuries of the eyes To achieve correct measurement results avoid the following error sources Measurement against the sun or other intense light sources Measurement onto low reflective target surfaces in highly reflective environments Measurements onto highly reflective surfaces mirror Measurements through glass optical filter Plexiglas or other transparent materials can lead to measurement errors Two or more LDM51A may no
17. QAx y Range of parameter x 5000000 5000000 Range of parameter y 5000000 5000000 Standard 0 1000 Om 10 m The measurement window MW also applies to the analog output ASTECH GmbH Page 61 Description of commande LDM51A Manual d i The LDM51A does not check the QA settings for plausibility The amp A user is responsible for correct parameterization SD Data format of the serial interface output SD parameterizes the output format and the possible output values Possible output values are the distance the signal quality the temperature and the switching ouputs active inactive Query SD Set SDw xyz Range of parameterw 0 5 Range of parameters O or 1 see X y z Table 13 Output format of parameters x y z Standard 0000 Table 12 Output format of parameter w Parameter Output format Separators Unit of measure w between the SF 0 MUNx values 0 Decimal 1 separator Unit Decimal None None 2 Hexadecimal None None floating point IEEE 754 3 Hexadecimal None None A Binary None None SSI and switching None None outputs only Page 62 ASTECH GmbH LDM51A Manual Description of commande Table 13 Output format of parameters x y z Parameter Value Signal quality Temperature Switching outputs N N lt lt x x 0 Off 1 On 0 Off 1 On 0 d Explanation binary output format Distance value Signal 4 Byte MSB Bit 31 MSB of Byte 3 always 1 MSB of Byte 2 1 a
18. T3 or T4 1 Status LED off Power supply off red Power supply on not ready for operation green LDMS5IA ready for operation 2 LINK LED off no data transfer Green flashing Data transfer active Profibus serial 3 Key T1 Function see display indication 4 Key T2 Function see display indication 5 Key T3 Function see display indication 6 Key T4 Function see display indication 7 Display STOP Measurement will be stopped K Ka Disp Display will be disabled nera fi Manu The display can be enabled with key T4 or T3 9002 540 0 m Stop T ize e ASTECH GmbH Page 67 Description of commande LDM51A Manual Tal Parameters Status Operation mode Select Heas on Identification u5 13 1014 13 10 14 17 57 Again Return ke kend Parameter setting After STOP measurement parameters can be set Menu f move cursor selection bar up Menu move cursor selection bar down Select select parameter Meas on start measurement Execute command Example Identification gt stop measurement gt Status Select gt Identification Select Again repeat command Return return to upper menu Figure 21 LDM51A Display Page 68 ASTECH GmbH LDM51A Manual Profibus 8 Profibus 8 1 ID Number LDM51P is registrated under ID number 0E36 HEX by PROFIBUS Nutzerorganisation e V 8 2 Connection conditions
19. parameter measurement window MW page 55 and or Offset OF page 57 the distance output value has to be in the positive range distance value gt 0 Otherwise the SSI output will be 000000 450 S Figure 7 SSI cable jack pin ASTECH GmbH Page 29 Interface description LDM51A Manual SSI Device black VCC GND violet red blue shield Figure 8 Wiring of SSI 24V 10 30V GND Page 30 ASTECH GmbH LDM51A Manual Interface description 5 6 Profibus interface Please see detailed Profibus information in chapter 8 Profibus M12 f ra 5PEX green CS A St SS PB OUT red 4 B shield 5 4 s shield rg M12 m i 74 n c green 3 A 3 NB PB IN red 4 B shield 5 shield S 4 24V 10 30V GND red blue shield D Figure 9 Wiring of Profibus interface ASTECH GmbH Page 31 Interface description LDM51A Manual 5 7 Q1 Q2 Q3 Digital switching output The switching outputs Q1 Q2 and Q3 show distance information as logic switching information They signalize when values are above or below a preset switching range subject to hysteresis Hence they are perfectly suitable for the direct further processing of monitoring variables such as filling level or object detection Parameterization is done via
20. trigger signal will be sent gt start of measurement DM in accordance with parameter TRI 2 Trigger output e g connection between 2 LDM51A The output trigger signal of the 1 LDM51A parameterized with TRO start a single measurement DM of the second LDM51A parameterized with TRO Differences between trigger input and trigger output Important is the parameter x of TRI and TRO TRIx gt 0 TROx 0 Trigger input The measurement starts after an external trigger impulse TRIx 0 TROx gt 0 Trigger output The LDM51A sends a trigger impulse to the second device The parameterization of the trigger connection is carried out via the serial interface or the internal display AN For the trigger function may only activated TRI or TRO A amp concurrent use of TRI and TRO is not possible gt Output of warning information Voltage level fort he trigger signals Low Pegel 0Vto15V High Pegel 3 Vto30V Threshold 2 25 V Hysteresis 0 1V Page 36 ASTECH GmbH LDM51A Manual Interface description TRI Trigger input The parameterization of trigger input will be set with command TRI D edge Parameterized the edge of trigger signal 0 Rising edge 1 Falling edge 2 Every edge Y delay Parameterized the time up to the measurement in ms Query TRI Set TRI x y Value range 0 1 2 parameter x Value range i 0 ms to 60000 ms parameter y Standard 00 A brown B green TRIG ellow D are E e pink blue red VCC black iol
21. 0 m 2 5 mm ASTECH GmbH Page 41 Start up LDM51A LDM51A Manual 6 4 Measurement involving moving targets Where measurements involve a moving object or the LDM51A is moved during measuring this will have an impact on the accuracy of the measured value This must be observed particularly when calculating average values parameter SA Average value The speed of the moving object may be 20 m s at the highest Measurement jumps of gt 30cm and or considerable changes in the reflectivity of the target surface can prolong the measurement period In case of a fixed measuring frequency parameter MF Measuring frequency Hz this may result in no measured value being generated within the predefined time A warning or error message will be displayed instead Page 42 ASTECH GmbH LDM51A Manual Description of commande 7 Description of commands 7 1 Overview of commands Table 8 Overview of commands Command Command Description Class Operation DM Individual distance measurement Mode DT Distance tracking CT Continuous tracking Status TP Internal temperature in C PA Output of a parameter list Identificatio ID Identification n ID Online help Setup PR Resetting parameters to factory Parameter settings SAx Average value MFx Measuring frequency in Hz MWx y Measurement window MUNx Unit of the measured value Standard s 1 0 x 5000000 y 5000000 mm Range s Not included BR RS SB SSI
22. 1A Manual Electrical connection conditions Supply voltage Power consumption Laser Laser classification Laser Wavelength Laser Divergence Laser spot in 10 m 10V 30 VDC lt 10 W without heating lt 42 W with heating 24 V Laser class 2 EN 60825 1 2007 635 nm lt 0 2 mrad 50 laser power 4mmx5mm Environmental and application conditions Operating temperature Storage temperature Humidity Housing protection class Shock resistance Persistence shock Continuous shock Swing sine shaped EMV Dimensions LxBxH incl connections Weight 40 C 60 C with integrated heating 10 C 60 C without heating 40 C 70 C 15 90 non condensing IP 67 30 g 6 ms DIN ISO 9022 3 30 03 2 10 g 6 ms DIN ISO 9022 3 31 01 1 2 1g 10 Hz 2000 Hz DIN ISO 9022 3 36 02 1 2 EN 61326 1 120 mm x 76 5 mm x 40 mm Ca 700 g Page 18 ASTECH GmbH LDM51A Manual Device description Interface Connections Serial interfaces Switching output Analogue output Trigger in and output Profibus Profibus Transmission rate Identity number Baud rate recognition Terminator Slave address GSD File SSI Transmission rate Signal input output 1x 12 pole M16 2x 5 pole M12 B encoded 1x 5 pole M12 A encoded RS 232 RS 422 RS 485 3x High side belastbar biszu 0 2 A 4 mA 20 mA Error handling at 3 mA 21 mA Total output error at 20 mA 0
23. 2004 108 EG The following harmonized standards were considered IEC 61326 1 2005 Electrical equipment for measurement control and laboratory use EMC requirements Part1 General requirement IEC 61326 1 2005 German Version EN 61326 1 2006 IEC 60825 1 2007 Safety of Laser products Part 1 Equipment classification and requirements IEC 60825 1 2007 German Version EN 60825 1 2007 Laser Class 2 IEC 60068 2 1 2007 Ab Environmental testing Part 2 Tests Testgroup Low Temperature Test Ab test item passive temperature 40 C Storage IEC 60068 2 1 2007 Ad Environmental testing Part 2 Tests Testgroup Low Temperature Test Ad test item active temperature 15 C in function without internal heating IEC 60068 21 2007 Ad Environmental testing Part 2 Tests Testgroup Low Temperature Test Ad test item active temperature 40 C in function with internal heating IEC 60068 2 2 2007 Bb Environmental testing Part 2 Tests Testgroup High Temperature Test Bb test item passive temperature 70 C Storage IEC 60068 2 2 2007 Bd Environmental testing Part 2 Tests Testgroup High Temperature Test Bd test item active temperature 60 C in function Rostock December 12 2014 ASTECH Angewandte Sensortechnik GmbH E d V Eta Jens Mirow Managing Director Page 88 ASTECH GmbH LDM51A Manual Notice ASTECH GmbH Page 89 Notice LDM51A Manual Page 90 ASTECH GmbH
24. 51A Manual 5 5 SSI Synchronous serial interface A SSI will be parameterized via serial interface or the internal display of the LDM51A SSI data interface is optional for LDM51A SSI Synchronous serial interface At the request of a SSI clock LDM51A starts the output of measuring values and sends the data bit by bit from the shift register of LDM51A Slave to a external controller Master It could be used all measuring modes of LDM51A The active measurement mode will be set via serial interface or profibus or internal display Setup via serial interface See page 65 SSI Setting the SSI parameters Setup via internal display Parameters BUS SSI SSI mode SSI work independent of Profibus interface Transmission rate 200 kHz Break duration Minimum 25 us between 2 bit seguences Data length 24 bit or 25 bit programmable Format Bin r oder gray kodiert Bit string 1 Data length 24 bits gt bit 23 0 Data string Bit 23 22 1 0 MSB LSB Page 28 ASTECH GmbH LDM51A Manual Interface description 2 Data length 25 bits gt bit 24 error bit bit 23 0 Data string Bit 24 23 1 0 MSB LSB The inputs CLOCK are galvanic isolated the potential separation is realized up to 500V To ensure undisturbed data transfer paired twisted wires are required Clock rate Cable length lt 250 kHz lt 150m lt 200 kHz lt 200m lt 125 kHz lt 300 m Please not that by using of
25. Analogous to Olw xyz Analogous to Olw xyz Analog output with lower and upper limit Setting the Profibus parameter Parameters of trigger input Parameters of trigger output Turns off the OLED display Turns on the OLED display Deactivates laser diode Activates laser diode Deactivates tracking modes Switches off heating unitl restart Executes restart no reset of parameters Standard s 100000 o O OO Range s 5000000 5000000 5000000 5000000 0 1 2 edge 0 60000 delay in ms 0 1 2 ASTECH GmbH Page 45 Description of commande LDM51A Manual 7 2 General information The LDM51A is parameterized using the serial interface or the display Precondition for programming via serial interface connection provided by a terminal program e g LDMTool REF or Hyperterm The set paramters are stored in an EEPROM The last entered data will be available upon restarting Retrieval of parameters Input PARAMETER lt ENTER gt Setting of Parameters Input PARAMETER VARIABLE lt ENTER gt The variables are described with the individual paramters Starting a measurement operating modes Input COMMAND lt ENTER gt Stopping a measurement lt ESC gt lt ESC gt 0x1B Entering distances Always in 0 1 mm 100 um Whenever an incorrect or incomplete command is entered the following responses are shown The input does not contain any parameter or command Parameter with current value Entry of a p
26. Commands Options Help SHS TPT BEALE PVG Parameter 4 gt d002743 3 mm Analog Output Calasator mA Digital Output Calculation Output 1 Output 2 Output 3 K K e a om COMI 1152008 NonelNone 02 Figure 17 Program LDMTool Page 40 ASTECH GmbH LDM51A Manual Start up LDM51A 6 3 Ranges and accuracies The tables below show the ranges and accuracies in relation to the target surface for outdoor applications For indoor applications the measuring range could be larger The measuring range depends on target reflectivity stray light measuring frequency and environmental conditions Table 7 Ranges and accuracies Measuring d Maximum Target Measuring range frequency accuracy white matt Variable 15 cm 100 m 1 mm reflectivity 20 Hz 15 cm 40 m 1mm approx 50 Hz 50 cm 35m 2 5mm 80 100 Hz 50cm 30m 2 5mm grey matt Variable 15cm 50m 1 mm reflectivity 20 Hz 15cm 25m 1mm approx 50 Hz 50 cm 18 m 2 5mm 13 100 Hz 50 cm 10m 2 5 mm Variable 15cm 20m 1 mm SE MERE 20 Hz 15cm 10m 1 mm tivit ET 50 Hz 50 cm 10 m 2 5mm approx 6 100 Hz 50 cm 10 m 2 5mm Variable 50 cm 100 m 1mm KT 20 Hz 50 cm 100 m 1 mm tape 50 Hz 50 cm 100 m 2 5mm 3279 special 100 Hz 50 cm 100 m 2 5mm Variabele 50 m 500 m 1mm E 20 Hz 50 m 450 m 1mm tape Oralite 5200 50 Hz 50 nm 300 m 2 5 mm 100 Hz 50 m 25
27. Part NUMDErSssismamatee Sol sak cee Sobre bedre en rare rr Taha S eech 87 13 EG Declaration of conformity sessesseesssrssssesssrrssssessrerersessrerrersessesrree 88 Page 4 ASTECH GmbH LDM51A Manual List of figures ll List of figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Installation and Mounting in mm 22 Interface cable socket top view cccsscccccecsesssseseeececsessaeeeeeeeseeeees LDM51A all connectors ccccccccccccccceccccceceeccececeeceeeceeecececeneseeeeenenenens Wiring of serial interface RS 232 Wiring of serial interface RS 422 Wiring of serial interface RS 485 SSI cable jack DIE cadets tees ise iiaee iaaa anaki Winne OF SSi EE Wiring of Profibus Interface Wiring of switching outputs Q1 OO 32 Behavior and parameters of the switching outputs 33 Signal diagram of LDM51A analog output nenne 34 Behavior of analog output annan a aa eaa sneen sn nn knnee 34 Figure 14 Wiring analog output OA of LOM51A anoa aaaeeeeen 35 Figure 15 Wiring of trigger Input 37 Figure 16 Wiring of trigger output naan anne ks nanna aaaeaeesa 38 Figure 17 Program LDMTool nannaa aa aan naa nannaa aaaeaeeea 40 Figure 18 Output of the ID commande 50 Figure 19 Output of the PA commande 51 Figure 20 Parameter reset with PR commande 55 Figure 21 LDM51A D
28. The eyelid closing reflex can be affected by pharmaceuticals alcohol and other substances 2 3 Advice for operating device gt The LDM51A should not be put into operation when optical parts are fogged or dirty The optical components of the equipment should not be touched with bare hands Dust and dirt are removed from the optical components with Page 10 ASTECH GmbH LDM51A Manual Safety advice extreme caution Cleaning with solvents or mechanical means is not allowed The device must be protected against overheating The device will gt not be switched off automatically when the operating temperatures are exceeded The persisting overheating of the device will lead to a reduced lifetime of the laser diode The device must be protected from impact gt The device must be protected from extreme temperature fluctuations When extreme temperature fluctuations are occurring use additional protection housing It is not allowed to operate the device in explosive environments The device corresponds to the protection degree IP 67 and is gt amp protected against jet water and short submersion Please observe the conditions for the protection degree IP 67 and observe especially the following advice The device must not be exposed to persisting driving rain or high temperature variations If the device is exposed to humidity the temperature difference between the device and the environment may b
29. Tracking of continuously quickly moving targets z B crab crane vehicle Scanning of static targets A Distance jumps or laser beam interruptions can result in faulty VA measurements The warning w1912 is issued ASTECH GmbH Page 49 Description of commande LDM51A Manual 7 5 Identification commands ID recognition When entering the command ID the LDM51A will respond by displaying the manufacturer s data in the following order Device type serial number manufacturer s part number firmware version time stamp Example LDM51A 130007 012890 001 22 V5 13 1021 13 10 23 10 10 ID Online help By entering the command ID the user will obtain an overview of all available operations and parameters described in the following sections Command List Command must start with correct beginning e g DM2 DM 2 su declares the option of adding a positive integer to change the parameter d declares the option of adding an integer to change the parameter f declares the option of adding a floating point number to change the parameter s declares the option of adding a string e g cm in case of MUN to change the parameter sb declares the option of adding a boolean value 0 false or 1 true to change the parameter Identi fications ID Prints this help ID Prints the firmware ID Status Parameters TP Prints the temperature of the device PA Prints all parameters
30. a sufficient period of time as needed to reliably accuracy lt 1mm determine the distance to a static during the measurement target object MEN SA1 DM Execute single measurement allowing for a period of time of maximally 1 x seconds to reliably accuracy lt 1 mm determine the distance to a static during the measurement target object DT Continuous distance measurement distance tracking The LDM51A performs a continuous measurement The measurement can be interrupted by a command Display STOP RS 232 422 485 Escape 0x1B The output frequency of the measured values depends on the selected parameters MF and SA The DT mode works with high measuring stability in the collection of the measured values even in case of beam interruptions and discontinuous motion sequences of the target Example response setting SD 0 Page 48 ASTECH GmbH LDM51A Manual Description of commande D 0002 935 21 1 57 8 Output format decimal D Distance 2 935 m Signal quality 21 1 Temperature 57 8 CT Continuous tracking The LDM51A performs an uninterrupted continuous measurement adjusting the laser parameters unambiguous ranges in relation to the target only every 6 seconds or when an obvious distance measurement error has occurred The measuring accuracy for freguencies gt 20 Hz is higher in the mode CT as in the operation mode DT Areas of application Quick measurements on hot surfaces
31. arameter with incorrect figure parameterization Page 46 ASTECH GmbH LDM51A Manual Description of commande 7 3 Transmission protocol Interface settings asynchronous 8 data bits no parity 1 stop bit Transmission protocol format syntax 7 bit ASCII Commands are case insensitive NO differetiation between lower and upper case Decimal seperator in the output of figures is dot Ox2E The terminator of a command sending command is the enter key 0x0D OxOA or Carriage Return OxOD or Line Feed 0x0A Where parameters have several values they are seperated by a space 0x20 The response to commands with parameters is the respective command including the parameters The response to commands without paramters ist he respective command including the current parameter The response to commands with parameters outside of the valid value range is the respective command including the current parameters The response to unknown commands and faulty parameter formats is a 0x3F ASTECH GmbH Page 47 Description of commande LDM51A Manual 7 4 Operating modes DM Individual distance measurement The LDM51A will perform exactly one measurement and then wait for new instructions The duration of the measurement depends on the number of preset measuring values SA and the preset measuring freguency MF Typical parameter settings MFO SA1 DM Execute single measurement allowing for
32. arge distances using a two wire line The current of 4 to 20 mA impressed in the line is proportional to the measured distance within an adjustable distance interval Parameterization is done via the serial interface Properties of the analog output 4mA 20mA Indication in case of an error 3 mA or 21 mA selectable via the parameter SE Resolution 12 bit DA converter Load 100 Ohm lt R lt 500 Ohm 0 5W Value Description Specification 21 20 x Lower Limit LEM f y UpperLimit y x xiy yix Dist Figure 12 Signal diagram of LDM51A analog output The value of output current mA is calculated as follows x lt y QA mA 4 mA 16 mA X gt y QA mA 20 mA 16 Ss mA Figure 13 Behavior of analog output A The LDM51A does not check the QA settings for plausibility The amp user is responsible for correct parameterization Page 34 ASTECH GmbH LDM51A Manual Interface description red blue shield 10 30V Figure 14 Wiring analog output OA of LDM51A N Where current voltage is to be converted a load resistance of 100 ohms lt R lt 500 ohms 0 5 W is to be switched between current output OA and GND J ASTECH GmbH Page 35 Interface description LDM51A Manual 5 9 TRI TRO Trigger Trigger function The LDM52 Trigger could be used as input or output Trigger input external trigger function 1 External
33. at the target surface Plug and firmly screw on the interface cable in the de energized condition Connect and firmly screw on the Profibus and SSI connections optional Wire the open cable end Energize Green status LED must light up As soon as STATUS LED is green the red laser beam will be visible Precondition AS DT default value Mechanical fine adjustment can be executed Parameterize the LDM51A via the menu navigation on the display Alternatively parameterize the device using a terminal program Activate the distance measurement mode e g DT ASTECH GmbH Page 39 Start up LDM51A LDM51A Manual Nr Work step 9 Start the distance measurement laser is switched on Measurement output and Status LED must be checked Stop the distance measurement mode Alternative Start measurement via Profibus The SSI measurement mode is to be defined in the AUTOSTART AS command 10 Final visual check Before switching on the power supply make sure that all cable ends are protected against short circuits Connect cable terminals as required for the particular operating mode To prevent short circuits seal unused cable ends For starting up a PC with RS 232 or RS 422 data interface and a terminal program are required We recommend the Windows program LDMTool Version 4 8 or higher see Figure 17 Program LDMTool RS 232 to USB converter are available optionally LDMToo LDMS1 LUMOS file Parameter
34. e 5K maximum N AN It is necessary to observe the operating and storage conditions For the LDM51A use only a supply voltage of 10 V 30 V DC direct current voltage The limit values for the input voltage have to be observed Do not wire inputs as outputs All outputs are resistant to short circuits The housing is galvanically separated from the sensor electronics assembly The interference resistance at electrostatic discharge ESD is 4 kV according to IEC 61326 1 ASTECH GmbH Page 11 Safety advice LDM51A Manual 2 4 Norms The device conforms to the following norms IEC 61326 1 2006 IEC 60825 1 2007 IEC 61010 1 2001 2 5 Disposal Electrical eguipment for measurement control and laboratory use EMC reguirements Part 1 General reguirements IEC 61326 1 2006 German version EN 61326 1 2007 Safety of Laser products Part 1 eguipment classification and reguirements IEC 60825 1 2007 Laser Class 1 Safety reguirements for electrical eguipment for measurement control and laboratory use General reguirements IEC 61010 1 2001 German version EN 61010 1 2001 For the disposal of the device special environmental protection guidelines apply Do not dispose the device with the usual domestic refuse The manufacturer offers to take back the device after the end of the product life cycle and to dispose of the product in accordance with the effective environmental protection guidelines
35. e power supply VCC The maximum load is 100 mA 8 6 Baud rate The LDM51A has an automatic baud rate for the following baud rates 9 6 19 2 93 75 187 5 500 kBaud und 1 5 3 6 12 Mbaud 8 7 Length of segment The maximum segment length between two Profibus participants depends on the selected baud rate The following segment length must be observed Baud rate Length of segment 9 6 kBaud 93 75 kBaud 1200 m 187 5 kBaud 1000 m 500 kBaud 400 m 1 5 Mbaud 200 m 3 MBaud 12 MBaud 100 m Cable type A is strongly recommended for connection to different Profibus units Cable type A has the following properties Characteristic wave impedance 135 0 1650 Capacity of the cable lt 30 pf m Loop resistance lt 110 0 km Wire diameter gt 0 64 mm Wire cross section gt 0 34 mm Page 70 ASTECH GmbH LDM51A Manual Profibus 8 8 Profibus interface The Profibus interface of LDM51P is a standard Profibus DP VO interface local peripherals VO is the version number The telegrams are byte oriented Bytes are also referred to as Octets in Profibus standard standard terminology From the user s angle the description can be restricted to a few telegram types Cyclical data exchange telegrams DataEx Diagnostic telegrams Parameter setting telegrams The different Profibus slaves of the same or similar function are described in profiles The profiles make it easier for the user to use PB slaves having the
36. es the terminator Co domain 1 10 Sp su Prints Changes the behaviour on errors Co domain 0 2 Sp su Prints Changes the character that separates the values e g distance and temperature Co domain 1 5 SF af Prints Changes the scaling factor To use MUN set SF 0 Co domain 0 001 10 000 MCT sb Prints Changes the tracking mode started from the menu Co domain 0 standard 1 continous DF Turns off the OLED Display DN Turns on the OLED Display Operation Modet DR Restarts the device does not reset parameters TID Prints status of laser diode LF Deactivates laser diode DH su Starts precise measurement uses tu as average parameter if available ES Deactivates tracking modes cr Activates Deactivates contineous tracking mode DT Activates Deactivates tracking node IN Activates laser diode Figure 18 Output of the ID command Page 50 ASTECH GmbH LDM51A Manual Description of commande 7 6 Status commands TP internal temperature The LDM51A outputs its internal device temperature in C The internal temperature is about 10 kelvins higher than the ambient temperature When the specified temperature range is exceeded or fallen short of the warning w1904 or w1905 will be generated cyclically Measurements will not be possible until the temperature has returned to a point within the specified range Example 26
37. et Power viole grey pink red blue M 24V a 10 30V Figure 15 Wiring of trigger input ASTECH GmbH Page 37 Interface description LDM51A Manual TRO Trigger output The parameterization of trigger output will be set with command TRO D edge Parameterized the edge of trigger signal 0 Rising edge 1 Falling edge 2 Every edge y delay Parameterized the time delay up to the measurement in ms Query TRO Set TRO xy Value range 0 1 2 parameter x Value range 0 ms to 60000 ms parameter y disabled at O ms Standard 00 1k black violet red blue i 24V shield 10 30V Figure 16 Wiring of trigger output Page 38 ASTECH GmbH LDM51A Manual Start up LDM51A 6 6 1 6 2 Start up LDM51A Preparation of start up Remove the packaging of the LDM51A Check scope of delivery for completeness Check device and accessories for damages Check connections and cables for damages Start up checklist The following table shows an example procedure for commissioning the LDM51A The table raises no claim of being complete The application specific wiring is required The user is responsible for the installation of the application specific wiring Table 6 Start up LDM51A Nr 1 2 Work step Unpack the LDM51A and check for damages Mount the LDM51A at the target location with 2 screws through the side face or 3 screws through the bottom 4 4 Roughly direct it
38. g the display When starting a continuous measurement using the integrated display you need to define if the LDM51A should measure based on the operating mode DT or CT The operating mode is selected via the command MCT When starting a measurement using the display the predefined operating mode will be applied as a rule When a measurement is started using a communication program or PLC the command DT or CT will determine the type of measurement Q1 Q2 Q3 Switching output Q1 Q2 Q3 parameterizes the behavior of the switching outputs Page 60 ASTECH GmbH LDM51A Manual Description of commande w begin of measurement range within the output swichtes D length of measurement range within the output switches y hysteresis and z logical behavior Query Q1 or 02 or Q3 Set Qiw xyz Q2wxyz Q3wxyz Switching threshold w 32 Bit Integer Switching range x 32 Bit Integer Switching hysteresis y 32 Bit Integer y 2 0 Switching state z Oor1 Standard O 100000 2500 1 A i The LDM51A does not check the settings of Q1 Q2 and or Q3 for plausibility QA Analog output QA sets the behavior of the analog output QA see chapter 5 8 The lower limit x and the upper limit y of the 4 to 20 mA current range are controlled by QA The lower limit may be smaller or may be larger than the upper limit Accordingly the current range is reserved Settings of equal limits will be ignored and not stored Query QA Set
39. he LDM51A may only be done by the manufacturer 9 3 Repair In case of necessary repair send the device to your dealer or to the manufacturer Ensure the safe packaging and provide information about the conditions of use application installation environment etc ASTECH GmbH Page 81 Error processing LDM51A Manual 10 Error processing Table 19 Error codes Fehler Meaning Action e1001 Error operating system Firmware e1002 Error operating system DEE Firmware e1003 Error operating system Firmware e1101 Error in communication with PC Check connection to external system e1102 Error in communication contact service for repair with PC e1103 Laser module error e1104 Laser module error e1105 Laser module error e1106 Hardware error internal data transfer e1107 Hardware error internal data transfer N e1108 Hardware error Contact service send controller LDMSIA to supplier e1109 Hardware error controller e1110 Hardware error SSI e1111 Hardware error SSI e1112 Hardware error Profibus e1113 Hardware error Profibus e1201 Measurement impossible Adjust device check no target target Page 82 ASTECH GmbH LDM51A Manual Error processing Fehler e1202 e1203 e1204 e1205 e1206 e1207 e1208 e1209 Table 20 Warnings Warnings w1901 w1902 w1903 w1904 w1905 w1906 W1907 Meaning Error measuring module calibration Target with unsuitab
40. interface the default value is PB1 Profibus enabled If LDM51A types with Profibus interface should be used via serial interface only the Profibus parameter PB must be disabled with command PBO SSA Profibus slave address With parameter SSA the Profibus slave address can be set It could be set via LDM51A keys or via service program Query SSA Set SSAx Range of parameter x 0 126 Standard 4 SSI Setting the SSI parameters SSI defines the Synchronous Serial Interface see chapter REF Query SSI Set SSIx Range of 0 4 see table below parameter x Standard 0 Wert x Beschreibung 0 SSI aus deaktiviert ASTECH GmbH Page 65 Description of commande LDM51A Manual SSI aktiv 24 bit bin r SSI aktiv 24 bit gray SSI aktiv 25 bit bin r MSB Errorbit SSI aktiv 25 bit gray MSB Errorbit a U N Page 66 ASTECH GmbH LDM51A Manual Description of commande 7 8 Direct controlling of the LDM51A The LDM51A can directly be parameterized and set for measurements without an additional PC Precondition is that it is supplied with voltage through the interface cable The LDM51A is ready for operation when the green STATUS LED is lit The individual menu items scan be selected using 4 membrane keys each 2 above and below the OLED display The user language is English The display can be deactivated during the measurement It can be switched on again by pressing key
41. ioning in metal industry e g rolling mills de coiler Position and height detection in crane applications Level measurement in silos and heaps on materials like sand earth feed cereals cement Thickness length and width detection Diameter of steel coils Distance measurement on hot glowing steel with temperatures over 1300 C Page 8 ASTECH GmbH LDM51A Manual Safety advice 2 2 1 Safety advice Basic safety advice Please read the safety and operating advice carefully and observe the advice when operating the device A GE E P Danger of Laser radiation Do not open the LDM51A otherwise Laser radiation can be emitted that can cause eye injuries Please observe all information and guidelines for operating the Laser The LDM51A corresponds to Laser Class 2 based on the standard IEC 60825 1 2007 When looking into the laser beam accidentally and for a short moment the eye will be protected by the eyelid closing reflex Danger electric shock The LDM51A may only be opened for repair purposes by the manufacturer If the device is opened arbitrarily without authorization all warranty claims will expire The operating and storage conditions have to be observed see chapter 3 The inobservance of this advice and the adverse use of the device can lead to injuries of the user or to damage of the device Connectors may not be plugged or unplugged when voltage is applied All installation wor
42. isplay 68 ASTECH GmbH Page 5 List of tables LDM51A Manual Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 List of tables Electrical installation conditions DEVICE YD OS is same kak EMEKKKA PANT vasa save KOKEA K aKN suue H S AN alenj esi Technical E EE EG ET Connector pin assignments ccccccccccccccecccecccccecececscceeceececeseseseseseeens Start Up LOM51A MG Gwssssseueeeseeeseee sees srsnee Ranges and accuracies Overview of commande Auto start Parameters nsss eai reder Scattering of distance measurerment essens serene Error Mode Sex meaning of parameter x Output format of parameter w e Output format of parameters X y Z ccsecsscccccecsessseeceeececsessesseeeeeeees Termination character s TEx meaning of parameter X 64 Configuration data veres asa en e KIL eaa oe e na eN aN ai iaieiiea Parameter data class 1 devices Parameter data class 2 devices Profibus diagnostic data Error codes nene VE Pin assignment of programming cable PC side 85 Pin assignment of programming cable LDM51A sided 85 Part MUME S eirias deed ee eege 87 Page 6 ASTECH GmbH LDM51A Manual Used Symbols Sign warns against emitting visible and invi
43. k may only be carried out when no voltage is applied The device may only be operated as intended and in faultless condition Safety installations must not be rendered ineffective Safety and warning signs must not be removed ASTECH GmbH Page 9 Safety advice LDM51A Manual gt amp gt A Protection Class 3 low voltage The device LDM51A operates with low voltage of DC 10 to 30 volts Protection degree In accordance with the Protection Degree IP 67 the LDM51A is protected against jet water and dust and against short submersion into water When operating the device under extreme outdoor environmental conditions the use of additional weather protection is recommended e g a cover plate with a short distance to the LDM51A Rapid temperature changes can lead to humidity entering the device The device is not shatter proof Do not let the device fall onto the ground and avoid any shock The device is delivered in a solid cardboard box which is suited for the transport of the device The device may not be used in explosive environments otherwise there is the danger of damage to the LDM51A and the surrounding equipment and of injuries of the user 2 2 Safety advice for Laser Class 2 A Based on the standard EN 60825 1 2007 the LDM51A is in correspondence with laser class 2 When looking into the laser beam accidentally and for a short moment the eye will be protected by the eyelid closing reflex
44. le reflectivity Measurement interrupted measuring module Measurement still running measuring module Target too bright too much back light Target outside of the measurement window MW Incorrect measurement parameterization Hardware error measuring module Meaning Restart being executed Input voltage outside of the specification too low Input voltage outside of the specification too high Temperature outside of the specification too low Heating active min temperature not reached no measurement possible Temperature outside of the specification too high Trigger input and trigger output active at the same time Action Contact service send LDMSIA to supplier Check target and distance Restart system Restart system Check limit ambient light No action or change MW setup Check setup Contact service send LDM51A to supplier Action No action Check power supply 10 30 VDC Check ambient temperature No action wait until LDMSIA is ready Check ambient temperature ASTECH GmbH Page 83 Error processing LDM51A Manual Warnings w1910 w1911 W1912 Meaning Measurement not completed within predefined period of time Measuring freguency too high Distance jump Action Activate TRI or TRO not both for the same time Use variable measuring time MFO check target Change MF Page 84 ASTECH GmbH LDM51A Manual Accessories Options
45. ll start communicating with the new baud rate BR will not be modified upon a parameter reset via PR Query BR Set BRx Range of 1200 2400 4800 9600 14400 19200 28800 38400 parameter x 56000 57600 115200 128000 230400 256000 Standard 115200 SB Stop bit oft he serial output Set the parameter of the stop bit for serial data transmission Query SB Set SBx Range of 0 5 1 0 1 5 2 0 parameter x Standard 1 0 RS Serial port Selection of the serial interface to be used for communication Query RS Set RSx Range for g 232 422 485 parameter x Standard 232 Page 54 ASTECH GmbH LDM51A Manual Description of commande PR Parameter reset All parameters are reset to factory settings except the baud rate BR the serial port RS the stop bits SB the SSI interface parameters SSI and the Profibus interface parameters PB We do not recommend using this command Afterwards the device must be programmed new auto start scaling analogue and output etc Example Parameters set to firmware defaults Baudrate of serial port BR 115200 UStopbits of serial port SB 1 Serial port mode RS232 422 485 RS 232 Average SA al Measurement frequency MF 0 0 Minimum distance from target in mm 10 MU 5000000 Maximum distance from target in mm 10 MU 5000000 Offset in mm 10 OF o Parametrization of switching output 01 Q1 0 1000000 2500
46. nd 0 always 0 Measurement data of each Byte Bit 6 Coding Two s complement 2 Byte MSB Bit 15 MSB of Byte 1 always 0 Daten Bit 6 Bit O No sign bit Maximum value 16383 14 Bit Data Temperature Binary format of switching outputs Q1 Q2 03 2 Byte MSB Bit 15 Sign bit Bit 14 MSB of Byte 1 and O always 0 Data Bit 6 Bit O 1 Byte MSB Bit 7 always 0 Off On Bit O ASTECH GmbH Page 63 Description of commande LDM51A Manual Q1 Bit2 Q2 Bit1 03 Bit O 1 switching output on active 0 switching output off TE Terminator of the serial interface TE is used to set the terminator for the output of measured values in the ASCII format also see command SD Query TE Set TEnn Range of parameter x 1 10 Table 14 Standard 1 Table 14 Termination character s TEx meaning of parameter x x 1 2 3 4 5 6 7 8 9 10 Hexcode 0x0D Ox0D OxOA 0x02 0x03 0x09 0x20 Ox2C 0x3A 0x3B Ox0A Description CR LF CR LF STX ETX Tabu Space Komma Colon Semi lator colon When an invalid character is entered it will not be set The current separator will be kept instead Page 64 ASTECH GmbH LDM51A Manual Description of commande PB Setting the Profibus parameters PB parameterizes the availability of Profibus interface Query PB Set PBx Range of parameter x O disabled 1 enabled Standard 0 For LDM51A types with Profibus
47. of command S sar e one Ee EENE E e PEA EEEE Ee oA 7 2 General information cccecsccccceseessceeeeecessesteaeeeeees 7 3 Transmission protocol sssseesssssessesssersessesseerersssseersees 7 4 Operating MOdES sree e eA AN EN oes 7 5 Identification Commandes 7 6 Status cl un El DEE 7 7 Command for parameter setup snes essens snnneee 7 8 Direct controlling of the LDM51A M1 1 WM W M ssssssseeseesssessss essere sn erne sesnsee 8 Profi us sg vaa ia Zeie Eegen Eege E 8 1 ADANIN o A EP A E E A 8 2 Connection conditions ccecceccceceesesesceeecececsestsaeeeeececsesesaseeeeeeees 8 3 EKS BYE GENEE 8 4 Slave el 8 5 Bus terminatiOn eege eege EE eege es ri rede 8 6 Baud rate eege eege ere DEENEN 8 7 Length Of Seg Mente sch na N ln ere ETY SEIS kanan 8 8 Nell TEE 8 9 Configuration data 8 10 Cyclical data exchange input fslavetomaster 8 11 Cyclical data exchange Output master to slave 8 12 Parameter data ENER EN 8 13 Diagnostic data 8 14 MORItoringu siummaataa tii mti San Sa AISTIA AV Eege 9 Ela LE Te 9 1 Maintenance by the user 9 2 Firmware update 9 3 EI EE 10 Error Processing TEN VIS SE ee 11 Accessories Options uuuuoosnnn nnen aa E 85 11 1 RS 232 cable for LDM51A nananana essensen ennnnee 85 11 2 Connection box TCRB OxvA nannaa aan n naa aaaeaeeen 85 11 3 Adjustment bracket IWixy annan aan eP IE Re iar 86 11 4 Software LDMTool from version A8 86 12
48. ol E1102 pc usart error 2 Bool E1103 laser usart error 3 Bool E1104 laser usart error 4 Bool E1105 laser usart error 5 Bool E1106 spi error 6 Bool E1107 spi error 7 Bool E1108 i2c error 8 Bool E1109 i2c error 9 Bool E1110 ssi error 10 Bool E1111 ssi error 11 Bool E1112 profibus error 12 Bool E1113 profibus error 13 Bool E1201 no destination found 14 Bool E1202 calibration error Page 78 ASTECH GmbH LDM51A Manual Profibus Octet Bit Type Output 15 Bool E1203 bad surface 20 21 0 Bool E1204 measure aborted 1 Bool E1205 measure running 2 Bool E1206 dest too bright 3 Bool E1207 destination not in window 4 Bool E1208 parameter error 5 Bool E1209 no answer from laser 6 Bool W1901 reboot 7 Bool W 1902 supply outer limit 8 Bool W 1903 supply outer limit 9 Bool W1904 temp outer limit 10 Bool W1905 temp outer limit 11 Bool W1906 heating active 12 Bool E1910 measure time out 13 Bool W1911 measure freq too high 14 Bool E1912 15 Bool 22 23 Word Warnings unused 0 24 25 Word Profile version z B 1 1 0110 hex 26 27 Word Software version z B 1 1 0110 hex 28 31 Unsigned 32 Operating time of laser in 0 1 hours 32 35 Signed 32 Offset value siehe auch output daten 36 39 Signed 32 Manufacture offset unused 0 40 43 Unsigned 32 Measuring units per revolution unused 0 44 47 Unsigned 32 Measuring range unused 0
49. on reguirements The LDM51A can be screwed on using 3 underside or 2 M6 fastening screws respectively length to be chosen depending on the counter piece 3 M6 fastening screws plus washers and washer springs are included in the scope of delivery d The zero point for measurement is identical with the housing front amp face ASTECH GmbH Page 21 Device description LDM51A Manual Haws yveisy VLSWGT bu lsusnovaso Figure 1 Installation and mounting in mm Page 22 ASTECH GmbH LDM51A Manual Device description 4 6 Connector pin assignments The device is connected via interface cable Various cable lengths are available Table 5 Connector pin assignments Pin Color code Signal Meaning A white RxD Rx RS 232 Receiver data RS 422 Receiver data B brown Rx RS 422 Receiver data C green TRIG Trigger input output D yellow QA Analog output 3 mA 21 mA E gey TX RS 422 Transmitter data F pink TxD Tx RS 232 Transmitter data RS 422 Transmitter data G blue 03 Switching output 03 H red VCC Power supply 10 30 VDC J black GNDpower GND supply voltage K violet 02 Switching output Q2 L grey pink GNDsigna GND output signal analog M red blue Q1 Switching output Q1 JN The shield of the device cable is to be connected to the shield connector of the equipment e g PLC Open and unused cable leads must be insulated For cable extension only high guality shielded cables has to be used The
50. parameter x Standard SE SEx 0 1 2 Table 11 Error Mode Sex meaning of parameter x 1 Table 11 Error Mode Sex meaning of parameter x x 01 02 03 z 0 01 02 03 z 1 OA 0 Last value Last value Last value 1 High Low 3mA 2 Low High 21 mA There is no plausibility check of the preset error mode The user itself is responsible for correct parameter setting SP Separator for parameters Output values are separated by the character SP Query Set Range of parameter x Standard x 1 Hexcode Ox2C Symbol Komma SP SPx 0 5 1 2 3 4 5 0x3B 0x20 Ox2F 0x09 Semicolon Space Slash Tabulator ASTECH GmbH Page 59 Description of commande LDM51A Manual HE Heating adjustment The parameter HE defines the switching thresholds for switching the heating element on and off The command is enabled only where the device is actually equipped with a heating element Query HE Set HExy Range of parameter x 40 40 integer Range of parameter y 40 40 integer Standard HE4 10 For switching the heating on or off the internal measured temperature is compared to the set parameters Internal temperature lt x HeatON Heating is switched on Interne temperature gt y HeatOFF Heating is switched off Please observe the following x HeatON lt y HeatOFF when setting the parameterization MCT Output modification of the operating mode when starting a measurement usin
51. re is a reverse polarity protection and an overvoltage protection is guaranteed up to 30 VDC Figure 2 Interface cable socket top view ASTECH GmbH Page 23 Interface description LDM51A Manual 5 Interface description 5 1 Interface overview RS232 RS422 RS485 anal Figure 3 LDM51A all connectors If the LDM51A types with Profibus interface should be used via serial interface only the Profibus parameter PB must be disabled with command PBO Page 24 ASTECH GmbH LDM51A Manual Interface description 5 2 Serial interface RS 232 The serial interface RS 232 can be used for the transmission of measured data or the parameterization of the LDM51A RD D Sub9 f black 10 30V red blue shield CES Gl El ee Figure 4 Wiring of serial interface RS 232 ASTECH GmbH Page 25 Interface description LDM51A Manual 5 3 Serial interface RS 422 D Sub9 f grey pink red blue 10 30V Figure 5 Wiring of serial interface RS 422 Wiring of D Sub9 is not standardized for RS 422 please check your system Page 26 ASTECH GmbH LDM51A Manual Interface description 5 4 Serial interface RS 485 LA LB C D E LF G LH ER K L M EI Wiring of D Sub9 is not standardized for RS 422 please check your system ASTECH GmbH Page 27 Interface description LDM
52. ritten in the LDM51A directly as parameter Octet 32 35 see 8 6 and can be changed by cyclical data while the system is operating and the configuration is as reguired see 8 3 If bit 31 of Mpreset IS set in the cyclical output data Mogset is updated If bit 31 is zero Mogset is not changed The new offset can be read as octets 30 33 in the diagnostic data Bit 31 has no particular release function for parameter data the offset is always adopted 8 12 Parameter data At least the following parameters apply to class 1 devices Table 16 Parameter data class 1 devices Octet Bit Type Output 1 byte Station status profibus default 2 byte wd fact 1 watch dog profibus default 3 byte wd fact 2 profibus default 4 byte min tsdr profibus default 5 6 word Ident number profibus default 7 byte group ident profibus default 8 byte spc3 spec profibus default 5 0 bool unused 1 bool class 2 functionality on off 2 bool commissioning diagonstic on off 3 bool unused 4 bool reserved for future use 5 bool unused Page 74 ASTECH GmbH LDM51A Manual Profibus Octet Bit Type Output 6 bool unused 7 bool unused The following additional parameters apply to class 2 devices Table 17 Parameter data class 2 devices Octet Bit Type Output 10 13 unsigned 32 Unused Linear Encoder Measuring units per revolution 14 17 unsigned 32 Unused linear Encoder Measuring range in 18 25 Byte s Unused re
53. served for future used 26 0 bool Unused 1 bool Unused 203 2 bit number Error reaction 0 2 SEnn O last valid value 1 min value 2 max value 4 bool Unused 5 7 3bitnumber Measure mode 0 DT 1 CT 2 TDM 27 0 1 2 bit number TRI x O 2 213 2 bit number TRO x 0 2 4 bool Q1z 5 bool Q2z 6 bool Q3z 7 bool unused 28 29 signed 16 TRI y 0 32767 30 31 signed 16 TRO y 0 32767 ASTECH GmbH Page 75 Profibus LDM51A Manual Octet 32 34 38 42 46 50 54 56 60 64 68 72 76 80 84 88 SD 96 33 37 41 45 49 53 55 59 63 67 71 75 79 83 87 91 95 99 Bit Type unsigned 16 unsigned 32 unsigned 32 signed 32 signed 32 signed 32 unsigned 16 signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 signed 32 Output SA x 0 1 1000 MF x 0 0000 200 0000 in 0 0001 steps OF 2147483648 2147483647 SF 1000 000 1000 000 in 0 001 steps MW min 2147483648 2147483647 MW max 2147483648 2147483647 diag time in 100 ms steps Q1w 2147483648 2147483647 Q1x 2147483648 2147483647 Oly 2147483648 2147483647 Q2w 2147483648 2147483647 Q2x 2147483648 2147483647 Q2y 2147483648 2147483647 Q3w 2147483648 2147483647 Q3x 2147483648 2147483647 Q3y 2147483648 2147483647 QAx 2147483648 2147483647 OAy
54. sible laser radiation Sign warns against danger of electrical power and of electric shock Sign warns against danger Sign shows information for use in hazardous environments Sign indicates important information regarding device use of the device The sign shows protection class 3 protective extra low voltage Sign indicates degree of protection IP of the device Sign informs that special guidelines had to be applied for device m amp o gt bPkb gt b gt p disposal ASTECH GmbH Page 7 General Information LDM51A Manual 1 General Information The measurement gauge LDM51A measures contactless the distance between itself and nearly every surface and material The LDM51A operates with a modulated visible laser with low beam divergence Newly developed algorithms and most modern technologies of the opto electronic signal processing allow a save highly precise and fast distance measurements that can be applied in almost all areas of machinery and plant engineering While developing the LDM51A there was paid particular attention to the operation in outdoor areas with high influence of constant light by solar radiation and high temperatures By its robust aluminum housing and the optional heating the LDM51A is prepared for safe use in harsh surrounding conditions Applications Plant automation and process technology Positioning applications in transportation and logistic Machine observation and posit
55. start of uninterrupted continuous measurement Only for gauge types with heating temperature range 40 C 60 C 13 14 15 16 17 18 19 20 21 22 23 24 SH SH ID SH TP SH DM SH DT SH CT SH DF SH DF ID SH DF TP SH DF DM SH DF DT SH DF CT Heating is deactivated Heating is deactivated output of device identification Heating is deactivated output of internal device temperature Heating is deactivated start of individual measurement Heating is deactivated start of continuous measurement Heating is deactivated start of uninterrupted continuous measurement Heating is deactivated Display is deactivated Heating is deactivated Display is deactivated output of device identification Heating is deactivated Display is deactivated output of the internal device temperature Heating is deactivated Display is deactivated start of individual measurement Heating is deactivated Display is deactivated start of continuous measurement Heating is deactivated Display is deactivated Start of uninterrupted continuous measurement Depending on the measurement mode used it takes max 6 s from applying the supply voltage to the point where the first measured value is put out ASTECH GmbH Page 53 Description of commande LDM51A Manual BR Baud rate BR enables the adjustment of the serial baud rate x As soon as a new baud rate is set the device wi
56. t be aligned in frontal view because the devices interact each other Operation and storage of the device under conditions that do not conform with the specifications Page 14 ASTECH GmbH LDM51A Manual Operating conditions A The operating temperatures have to be observed The overheating of the device has to be avoided in any case When the operating temperatures are exceeded the device is not switched off automatically Persisting overheating of the device leads to a reduced lifetime of the laser diode ASTECH GmbH Page 15 Device description LDM51A Manual 4 Device description 4 1 General device description The LDM51A distance meter is available in different versions Types can be selected based on the required interface and on the temperature conditions at the place of application LDMSIA versions designed for an operating temperature of as low as 40 C can be used for applications outdoors or in refrigerated warehouses The heating element ensures the operating temperature of the components and free optics no condensation of the LDM51A The required connecting cables are available with straight and angular plug in connectors In order to prevent the direct incidence of extraneous light into the device optics a light protector is available as well that can be screwed onto the device Serial interfaces The LDM51A is equipped with a switchable serial interface It can operate as RS 232 RS 422 and RS
57. ter OxOD or Carriage Return OxOD or Line Feed 0x0A If commands have only one parameter the parameter will be inserted directly or separated by a blank space 0x20 If commands have several parameters these parameters will be separated by a blank space 0x20 AS Auto start function The autostart function defines the behavior of the LDM51A after a cold boot After the connection to the supply voltage and the internal start up routine the LDM51A will automatically execute the command and send the data to the available outputs A figure from the table below must be entered see Table 9 Auto start parameters Query AS Set ASx Value range 1 24 see table below parameter x Standard 5 Table 9 Auto start parameters Value x Command Meaning 1 ID Output of device identification 2 ID Output of command list 3 TP Output of internal device temperature 4 DM Start of individual measurement 5 DT Start of continuous measurement 6 CT Start of quick continuous measurement 7 DF Display is deactivated 8 DF ID Display is deactivated Output of device identification 9 DF TP Display is deactivated output of internal device temperature 10 DF DM Display is deactivated start of individual Page 52 ASTECH GmbH LDM51A Manual Description of commande Value x 11 12 Command DF DT DF CT Meaning measurement Display is deactivated start of continuous measurement Display is deactivated
58. the serial interface Hr e white A brown B green e ellow D gre E pink F blue Q3 Q2 Q1 red VCC v beat LS violet grey pink L GND red blue M Signal shield rst 1KOhm 24V Figure 10 Wiring of switching outputs Q1 Q2 Q3 10 30V f A load resistance of gt 150 Ohm 30 V max operating voltage 0 2 A max load current must be switched against GNDpower at the switching output It is essential that the load current of 0 2 A is not exceeded Page 32 ASTECH GmbH LDM51A Manual Interface description Q1 Q2 Q3 parameterizes the behavior of the switching outputs Parameterization covers the beginning w of the measurement range i e the point where the output will switch the length x of the measurement range the hysteresis y and the logic behavior z HIGH Q1 02 03 LOW z HIGH z ai 02 03 LOW Figure 11 Behavior and parameters of the switching outputs LOW 0 U lt 1V HIGH 1 U operating voltage 1 V Variable Description Specification w Switching threshold 32 bits integer D Switching range 32 bits integer EE E 32 bits integer Switching hysteresis y g hy y gt 0 z Switching status z Oor1 A The LDM51A does not check the settings of Q1 Q2 and or Q3 for A plausibility ASTECH GmbH Page 33 Interface description LDM51A Manual 5 8 QA Analog output The analog output enables the normed analog transmission of distance data across l
59. to master Position data supplied by LDM51P is signed The sign can be inverted in the parameter SF scale factor The resolution is also defined by SF Page 72 ASTECH GmbH LDM51A Manual Profibus The arrangement of octets in the telegrams conforms to the Profibus big endian i e the MSB comes first the LSB comes last Octet Bit Type Output 1 4 Signed 32 Position data from encoder in 0 1 mm Configuration with 8 byte input and SS mode 5 8 Signed 32 Signal level Configuration with 9 byte input 9 Signed 8 Temperature in C 8 11 Cyclical data exchange Output master to slave The most significant bit in the present value bit 32 defines the validity of the preset Octet Bit Type Output 1 4 Signed 32 Preset Value Normal Mode MSB O bit 31 Preset Mode MSB 1 bit 31 Configuration with 5 byte output 5 0 Bit O laser off 1 laser on 1 Bit O normal 1 ext diagnostics with Exxxx 2 Bit 0 no diagnostic 1 Diag as needed 3 Bit 0 no OLED Control 1 OLED Ctrl active 4 Bit 0 OLED off 1 0LED on The internal offset can be set to a required value by the present The offset can be changed by setting bit 31 The following applies Mpataex Value transported on the Profibus in cyclical data exchange M aser Value measured by the laser M offset Offset calculated internally Cyclical calculation of Mpatarx Miaser Moffset ASTECH GmbH Page 73 Profibus LDM51A Manual The Morset value can be w
60. ution 0 1 mm The LDM51A does not check the set measurement window for plausibility The user is responsible for correct parameterization MUN Unit of the measured value MUNx enables the definition of a unit for the output value It is shown together with the measured value In ordert o use MUN SF O must be set Query MUN Set MUNx Range of parameter x mm cm dm m in 8 in 16 in ft yd Standard mm MF Measuring frequency Hz MF parameterizes the number x of the measured value outputs per second When a value x outside of the measurement range is entered the lowest or highest permissible MF value will automatically be set Entered value lt x gt MF 0 0 Entered value gt x gt MF 100 0 Query MF Page 56 ASTECH GmbH LDM51A Manual Description of commande Set MFx Range of parameter x 0 0 100 0 Hz Resolution 0 1 Standard 0 MF 0 Automatic measurement The output frequency ranges between 0 3 Hz and 10 Hz in most cases Essential factors concerning the measurement period are among others the reflectivity of the target surface and the environmental conditions e g light fog rain OF Offset OF parameterizes a user specific offset x that is added to the measured value It s entered in 0 1 mm Query OF Set OFx Range of parameter x 5000000 5000000 Standard d The LDM51A does not check the set offset for plausibility The user is responsible for correct parameteri
61. zation SF Scale factor SFx defines a factor by which the output value is multiplied Query SF Set SFx Range of parameter 10000 10000 X Standard 0 ASTECH GmbH Page 57 Description of commande LDM51A Manual At SF 0 the parameter MUN is ineffective At SF O the unit defined by MUN becomes effective SA Average value SA parameterizes the number x of the individual measured values to be averaged for measured value output SA directly correlates with the measuring freguency MF see page 56 Output time in seconds SA MF or Output frequency in Hz MF SA Query SA Set Sax Range of Parameter N 1 50 resolution 1 X Standard 1 The spread of the measured values can be reduced by determining average values 01 Osa SAT TSA The following applies Osa Dispersion after mean value calculation 01 Dispersion of single measured value approx 5 cm SA Number of averaged single measurements Table 10 Scattering of distance measurement f Hz MF SA Output frequency Hz Osa mm 20 1 20 1 0 20 10 2 0 3 Page 58 ASTECH GmbH LDM51A Manual Description of commande SE Error Mode SE sets the behavior x of switching outputs Q1 and Q2 and of analogue output OA in case of faulty measurements as well as the state after carrying out a single distance measurement The switching behavior of 01 and 02 depends on parameter z Query Set Range of

Manual EN V1.4 - ASTECH Angewandte Sensortechnik GmbH

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