Laser Distacne Sensor Manual
Contents
1. reset settings 20 Acuity Laser Measurement 6 Analog Output Operation RB RE SE The analog output uses two wires The output is Red and the return is Blue The return wire is the power supply ground The current loop output is always on The analog output is updated with each sample measured The analog output will deliver a current which increases linearly from 4 mA at the range beginning point to 20 mA at the range end point Best accuracy and noise immunity is obtained by connecting a 500 Ohm resistor to the current return wire at the measurement point For connection details see section 0 6 1 Setting the analog range beginning point RB The default setting for RB is 1000 1000 meters is beyond the allowable range of the AR1000 The parameter units for RB are dictated by the scale factor SF See section 5 2 2 The RB range beginning command sets the location of the point that is assigned 4 milliamps in the current loop output The range beginning point can be set to any distance within the sensor s natural measurement range RB may be greater or less than RE 6 2 Setting the analog range end point RE The default setting for RE is 2000 2000 meters is beyond the allowable range of the AR1000 The parameter units for RE are dictated by the scale factor SF See section 5 2 2 for information about scale factors SF The RE range end command sets the location of the range ending point sometimes referred to2. Acuity Laser Measurement AccuRange AR1000 Laser Distance Sensor AccuRange AR1LOOOH Laser Distance Sensor w Heater User s Manual Rev 1 7 For use with AR1000 and AR1LOOOH 1 12 2010 Acuity A product line of Schmitt Industries Inc 2765 NW Nicolai St Portland OR 97210 www acuitylaser com Limited Use License Agreement CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE OPENING THE PACKAGE CONTAINING THE PRODUCT AND THE COMPUTER SOFTWARE LICENSED HEREUNDER CONNECTING POWER TO THE MICROPROCESSOR CONTROL UNIT INDICATES YOUR ACCEPTANCE OF THESE TERMS AND CONDITIONS IF YOU DO NOT AGREE WITH THE TERMS AND CONDITIONS PROMPTLY RETURN THE UNIT WITH POWER SEAL INTACT TO THE DEALER FROM WHOM YOU PURCHASED THE PRODUCT WITHIN FIFTEEN DAYS FROM DATE OF PURCHASE AND YOUR PURCHASE PRICE WILL BE REFUNDED BY THE DEALER IF THE DEALER FAILS TO REFUND YOUR PURCHASE PRICE CONTACT SCHMITT INDUSTRIES INC IMMEDIATELY AT THE ADDRESS SET OUT BELOW CONCERNING RETURN ARRANGEMENTS Schmitt Industries Inc provides the hardware and computer software program contained in the microprocessor control unit Schmitt Industries Inc has a valuable proprietary interest in such software and related documentation Software and licenses the use of the Software to you pursuant to the following terms and conditions You assume responsibility for the selection of the product suited to achieve your intended results and for the installa
3. 5 4 2 Laser OFF LF This command turns the laser beam off The sensor does not measure in this mode 5 5 Displaying Configuring and Resetting Parameters PA PR AS TP As the AR1000 sensor is configured for your needs it may be helpful to view the settings that are saved in the sensors EEPROM The PA allows users to view those settings in an online report through the serial communications interface The PR command resets all settings to factory defaults 5 5 1 Displaying current settings PA The PA command PA lt Enter gt will display the current settings An example is shown below average valuelSAl o oo ooo mo oo 1 display format SDl 0 mo d measure time ST oomm o 0 scale fact ori Sloan aa 1 error imode SE ys esc aw eee pana a ass 1 AR1000 User s Manual ae Acuity 18 aser Measurement ALARM center ACl 20 ALARM hysterese AH 4 0 1 ALARM width AW 10 heating on HO 00 oo omo mo 3 heating off HF oo omo mocos 12 distance of lout 4mA RB 15 distance of lout 20mA RE 25 remove measurement RM 00 0 trigger delay trigger level TD 0 0 trigger mode trigger level TM 0 1 Did Ud ratel BR nc ke Sea ke 00 96 autostart command AS 1D distance of fSet OF i ceca w vacates es 0 5 5 2 Resetting sensor settings PR Typing PR lt Enter gt will restore the AR1000 to facto
4. The Blue wire is the Power Supply Common return also named Ground It carries the return current for the power supply and the analog signals The Orange wire is the Power Supply Input to the sensor The sensor requires 10 VDC power at 125 mA The Analog Output uses an additional current up to 25 mA AR1000 User s Manual A Rev 1 7 1 10 ACuity Laser Measurement 11 Power supplies from 10 VDC to 30 VDC may be used Higher voltages will result in excessive current drawn by the over voltage protection circuitry and may cause permanent damage Voltages less than 10 VDC may result in inaccurate measurement readings With the use of the on board heater the AR1000 sensor uses 24 W of power at 24 VDC 4 1 2 Shield Clear The un insulated wire is the cable and case shield and is connected to ground inside the sensor It should also be connected to ground at the power supply end of the cable 4 1 3 Serial Communications Green Yellow Black Violet RS232 and RS422 modes are compatible with the associated ANSI standards See Serial Interface Operation section 5 for information on commands and data RS232 RS232 is normally used for slower speeds and shorter distances of communications A standard 9 pin D SUB RS232 serial female connector can be built to interface with an IBM or compatible computer using connection the pins below Color Pin Green 2 Trasmit data from sensor Yellow 3 Receive data to sensor Gray 5 Signal ground re
5. SDd Enter STx Enter SFx x Enter SEx Enter ACx x AHx x Enter AWx x Enter HOx Enter HFx Enter RBx x Enter REx x Enter RMx y y z Enter TDx y Enter TMx y Enter BRx Enter ASd Enter OFx x Enter Enter AR1000 User s Manual Rev 1 7 1 10 show this list distance tracking distance tracking 7m distance tracking with cooperetive target 10Hz distance tracking with cooperetive target 50Hz distance measurement with external trigger distance measurement internal temperature C display set average value 1 20 display set display format d h display set measure time 0 25 display set scale factor display set error mode 0 1 2 0 Iout const ALARM const 1 Iout 3mA RE gt RB 21mA RE lt RB ALARM OFF AH gt 0 ONGAH lt O 2 Iout 21mA RE gt RB 3mA RE lt RB ALARM ONGAH gt 0 OFFRAH lt O display set ALARM center display set ALARM hysterese display set ALARM width display set temperature of heating on 40 C 70 C display set temperature of heating off 40 C 70 C display set distance of Tout 4mA display set distance of Tout 20mA remove measurement display set trigger delay 0 9999ms trigger level 0 1 display set trigger mode 0 1 trigger level 0 1 display set baud rate 2400 38400 display set autostart command DT DS DW DX DF DM TP LO ID display set distance offset set current distance to offset offset distance laser on laser off display settings
6. s output values are xxx xxx yyyyyy where x is the distance and y is the signal strength The range for the signal strength is between 0 999999 and the values depend on the measurement mode DT DS etc Due to the different calculation algorithms used in the different measurement modes the signal strength for a given distance and target surface may be different AR1000 User s Manual eee Acuity 1 6 aser Measurement The minimum value of 000001 can be reached before the sensor reports an E15 error see Error Codes Section 5 3 A maximum signal strength value of 99999 may be reached before the sensor becomes overloaded with ambient light and reports an E17 error Hexadecimal Notes Hexadecimal output values are calculated on units of millimeters mm multiplied by the scale factor SF Hexadecimal output has a leading space six hexadecimal digits and is followed by lt CR gt lt LF gt carriage return and line feed characters Negative distance values are output in two s complement notation Hexadecimal output values are limited to six hex digits A number requiring more than six digits will be clipped and output only the lower six digits The clipped number could therefore exibit an incorrect sign as well as incorrect values Use the SF command to keep the output values between hex 800000 decimal 8388608 and hex 7FFFFF decimal 8388607 Examples Distance 4 996 m SF1 dec 4 996 hex 001384 hex code for 4996
7. Example A moving object is monitored within a window of 10 m to 11 m with a hysteresis of 0 2 m The commands would be AC10 AH0 2 AW1 Increasing distance meters A 9 8 9 9 10 0 10 1 10 2 d 11 0 11 1 11 2 11 3 AH L L L H H H H L L H AH H H H L L L L H H H Decreasing distance meters er 11 3 11 2 11 1 11 0 Ep 10 2 10 1 10 0 9 9 9 8 AH L L L L H H H H H L AH H H H H L L L L L H AR1000 User s Manual A Rev 1 7 1 10 Acuity 23 7 5 Error Mode behavior for the alarm output SEO SE1 or SE2 The factory default setting is SE1 The AR1000 alarm output can be configured to output different alarm outputs for special error conditions that correspond to Error Messages E15 E16 E17 and E18 See Error Messages section 5 3 for more information SEO lt Enter gt will cause the AR1000 to alarm and hold the output state from the last valid measurement SE1 lt Enter gt will force the following behavior AH ALARM LOW AH ALARM HIGH SE2 lt Enter gt will force the following behavior AH ALARM HIGH AH ALARM LOW The SE command also affects the Analog output See section 6 3 AR1000 User s Manual A Rev 1 7 1 10 Acuity 24 8 Performance Optimization 8 1 Measurement Modes The AR1000 will not begin measuring and outputting distances until the user selects a measurement mode Once initiated the distance reading will be output on both the serial and analog
8. as the end of the measurement range The range ending point is assigned 20 milliamps in the current loop output The range ending point can be set to any distance within the sensor s natural measurement range RE may be greater or less than RB 6 3 Setting the Error Mode SEO SE1 or SE2 The default setting is SE1 The AR1000 can be configured to output analog signals for special error conditions that correspond to Error Messages E15 E16 E17 and E18 See Error Messages section 5 3 for more information SEO lt Enter gt will cause the AR1000 to output and hold the last valid measurement SE1 lt Enter gt will cause the sensor to output 3 mA if RE gt RB and 21 mA if RE lt RB SE2 lt Enter gt will cause the sensor to output 21 mA if RE gt RB and 3 mA if RE lt RB The SE command also affects the Alarm output See section 7 5 AR1000 User s Manual as Acuity 2 1 aser Measurement 7 Alarm Output Operation AC AH AW SE The alarm output uses the white wire in the basic configuration Alarm output is also referred to as digital switching output Users of the AR1000 laser sensor may wish to monitor the position of an object and receive an alarm if it moves beyond set distance limits To do this users establish parameters of a measurement window using commands AC alarm commence AH alarm hysterisis and AW alarm width The range subject to monitoring begins at AC and ends at AC AW The alarm output transition hysteresis can be set via par
9. case of non conforming measurement A maximum of ten preceding measured values can be evaluated y defines the range of permissible values If this range is exceeded in negative or positive direction the respective measured value will be corrected accordingly z stands for the number of values that are out of the permissible value range out of tolerance values In the event of out of tolerance values arriving in succession the most recently corrected value will be included in the correction process for the next out of tolerance value The maximum allowed number of out of tolerance values is 100 Example RM3 0 5 1 x 3 2y 1 z 1 me Actua ww ew ee Limit Corrected AR1000 User s Manual A Rev 1 7 1 10 Acuity 2 7 Laser Measurement 8 6 Set Heater ON Temperature HOx This parameter is only available in the AR1000H laser sensor Factory default setting is 3 corresponding to 3 C The HO command determines the low temperature below which the AR1000H sensor s internal heater will automatically turn on A temperature sensor inside the AR1000H monitors the internal temperature of the device and compares it to the HOx value If the measured internal temperature is less than HOx the heater will be activated The range of permissible values for the Heater ON setting is 40 to 70 C To query the Heater ON temperature without making changes type HO enter 8 7 Set Heater OFF Temperature HFx This parameter
10. function will activate Note that ASDF is not reliable in TM mode use ASDM instead AR1000 User s Manual eu Acuity 2 9 aser Measurement 9 3 1 Example 1 Triggering Autostart The Autostart function has the parameters ASDT The Trigger Autostart has the parameters TM1 1 Trigger signal High DT is performed Trigger signal Low DT is stopped HIGH OW DT ON DT OFF t Figure 13 Triggering Autostart Low to High 9 3 2 Example 2 Triggering Autostart The Autostart function has the parameters ASDM The Trigger Autostart has the parameter TM1 0 Trigger signal High no change in state Trigger signal Low DM active 1 e one measurement is triggered HIGH OW DM ON DM OFF na t p Figure 14 Triggering Autostart High to Low AR1000 User s Manual Rev 1 7 1 10 Acuity Laser Measurement 30 10 Serial Command Quick Reference Type lt Enter gt after each command Online help menu ID Displays serial command menu Distance tracking mode DT Self adjusting sample period 6 Hz max Close range distance tracking DS Self adjusting sample period for ranges lt 7 m 10 Hz distance tracking DW 10 Hz sampling rate to cooperative target with short movements 50 Hz distance tracking DX 50 Hz sampling rate to cooperative target with short movements Trigger mode DF External hardware trigger causes a sample t
11. is only available in the AR1000H laser sensor Factory default setting is 12 corresponding to 12 C The HF command determines the High temperature above which the AR1000H sensor s internal heater will automatically turn off A temperature sensor inside the AR1000H monitors the internal temperature of the device and compares it to the HOx value If the measured internal temperature is greater than HFx the heater will be de activated The range of permissible values for the Heater ON setting is 40 to 70 C To query the Heater OFF temperature without making changes type HF enter AR1000 User s Manual AE Acuity 2 8 aser Measurement 9 Trigger Mode Optimization Trigger mode is only available in the standard AR1000 and NOT available in the AR1000H heater sensor version The AR1000 can operate with a hardware trigger that has been connected according to the diagram in Section 4 1 6 To operate with an external trigger the AR1000 must be configured in the Trigger Measurement Mode DF See Section 8 1 5 for details about this measurement mode The Trigger Delay TD and Trigger Mode TM functions should only be used in the Hardware Trigger Mode DF 9 1 Designating Trigger Mode DF DF mode allows a measurement that is triggered by an external trigger pulse Initially after selecting this mode the operator does not receive any response As soon as the trigger pulse has been detected the AR1000 will send data and update the d
12. lines Users may select among several modes that will optimize the sensors speed or accuracy performances for the specific measuring application 8 1 1 Distance Tracking Mode DT The Distance Tracking mode is a versatile measuring mode that gives priority to the quality accuracy of the measurement rather than a specific measuring rate In this mode the actual sampling time will vary depending on the reflectivity amplitude of the returning light signal of the target Darker targets may cause longer measuring times The minimum time to measure is 160 ms 6Hz the maximum time is 6 s If the measuring signal fails to reach a specified quality within six seconds an error message is output see Error codes 5 3 The time to measure may also be limited by setting the ST parameter to a desired value 8 1 2 Close range Distance Tracking DS The Close range Distance Tracking mode should be used when measuring varied target surfaces between 20 to 275 inches 0 5 to 7 m because it gives better speed performance The time to measure may also be limited by setting the ST parameter to a desired value 8 1 3 10 Hz Distance Tracking DW The 10 Hz Distance Tracking mode can be selected when working with a cooperative target A cooperative target is a target surface with high diffuse reflectivity Examples of cooperative targets include white surfaces paper paint etc or special reflective targets contact technical service Coopera
13. mm Distance 4 996 m SF10 dec 49 960 hex 00C328 hex code for 49960 4996 mm x scale factor 10 5 2 2 Serial Data Units or Scale Factor SFx x The default setting for units is meters SF1 The output is not labeled The AR1000 is capable of reporting data in any units because the user can set a scale factor To convert the units to feet the scale factor would be 3 28084 feet meter Scale factor Significant digit Output Unit of Measure SFI 0 001 m 12 345 meter SF3 24084 0 01 feet 4 860 feet SF1000 I mm 12345 millimeter SF3937 0 01 inch 39 37 inch 5 3 Error Codes The AR1000 will automatically generate error codes in the ASCII output stream Some of these errors may also be represented through the analog and alarm output functions See the sections for Current Loop Output and Alarm Output for error handling in those output modes Below is a list of the error codes that may be transmitted over the serial output Code Description Remediation Sensor slow to respond due to low E15 reflectivity or min range lt 3 9 in 0 1m E16 Too much target reflectance Use darker targets or reflective sheeting AR1000 User s Manual Acuity 1 7 aser Measurement Use brighter targets or reflective sheeting Ensure min range gt 3 9 in 0 1m Code Description Remediation Reduce ambient light at target and minimize shiny surfaces E17 Too much ambient
14. pdf AR1000 User s Manual Acuity Rev 1 7 1 10 reg y pre 3 Installation and Checkout 3 1 Mounting Mount the sensor in such a way that the case is not twisted or warped Using three hard points along the front and back edges or a slightly compliant mounting system are the best methods Do not clamp or squeeze the sensor case excessively If the case is distorted the sensitivity and accuracy of the sensor may be affected 3 2 Cabling The AR1000 has a multipurpose cable with solder tail wires The standard cable length is 6 6 feet 2 m and longer cable lengths are available Connection and termination according to the instructions is essential for correct sensor operation Read the wire descriptions in Section 4 1for connection information Connect the cable s 12 pin connector Binder series 423 to the plug Binder series 723 on the back cover of the AR1000 sensor Be sure to tightly secure the connection Figure 3 Back cover with 12 pin plug and pin arrangement Figure 4 Interface cable AR1000 User s Manual A Rev 1 7 1 10 Acuity Laser Measurement 3 2 1 Standalone Cabling To use the AR1000 without a serial connection to a host computer the only connections necessary are the power and ground wires the analog output wires and optionally the alarm output wire connecting to your data display recording or control equipment See Signal and Power Interface section 4 for wire connections In its def
15. the host device to change its own Baud Rate after commanding the sensor to change The following Baud Rates are provided with corresponding serial command 2400 BR2400 lt Enter gt 4800 BR4800 lt Enter gt 9600 BR9600 lt Enter gt default 19200 BR19200 lt Enter gt 38400 BR38400 lt Enter gt 5 2 Serial Data Output SD SF The Serial Data Format units and errors are selectable using the Serial Output Control command Serial data is transmitted from the AR1000 as 8 data bits with no parity and 1 stop bit The sample data sent represents calibrated distance readings Available formats are decimal and hexadecimal Output units are determined by the scaling factor The nominal units scaling factor 1 is meters Adjustable offset modes are Unbiased Zero Based and Offset Based 5 2 1 ASCII Output Format SDd SDh or SDs The factory default setting for output format is decimal d SD selects between ASCII decimal d with distance only hexadecimal h output or ASCII decimal s with both distance and signal strength formats of measured value data SD affects all commands that output a distance value Decimal Notes Decimal d output values are based on units of meters m multiplied the scale factor SF Decimal output has an optional sign at least one digit before the decimal point three digits after the decimal point and is followed by lt CR gt lt LF gt carriage return and line feed characters Decimal
16. type SF1000 lt Enter gt DT lt Enter gt The sensor will report its present measurements six times per second in millimeters If a target surface is placed in the measurement range of the sensor the screen should display distance information The distance is measured from the start of the measurement range If there is no target in the measurement range the sensor will output an error code If there is no output the sensor may be set to a different baud rate 1 3 3 Analog Output Signals Quick suggestion connect a DVM digital volt meter to the wires Blue to Common Red to mA input Assign the Range Beginning RB and Range Ending RE parameters to the desired lengths in meters Type DT to begin the Distance Tracking mode The output is a 4 20mA current loop The meter should read near 4 mA when a target is placed in the laser beam near RB and 20 mA near RE 1 3 4 Alarm Signal Quick suggestion connect the alarm signal wire white to a 1K resistor in series with an LED anode to the resistor cathode to ground gray The default action is Alarm will go active LED lights if a target is measured at a distance greater than 1000mm but less than 100m AR1000 User s Manual Rev 1 7 1 10 Acuity 2 General Description The AR1000H is a laser diode based distance measurement sensor for ranges up to 118 feet 30m on regular surfaces and up to 500 feet 150 m using a reflective target The accuracy is generally specifi
17. which modes and parameters will become active after power up of ASID Autostart configuration ASx online AR1000 menu Set zero point OFx Sets zero point for serial output with a user entered number OFO Set current distance to zero SO Takes a single sample and assigns it the zero point Turn laser on LO Turns on laser Turn laser off LF Turns off laser Display current settings PA Shows the current parameter settings Reset to factory default PR Returns all sensor settings to factory default AR1000 User s Manual Acuity Laser Measurement Rev 1 7 1 10 31
18. STO is 240 ms and the maximum sample period is 6 seconds x 1 25 Measurement time is set approximately to x 240ms for DT mode x 150ms for DS mode One use for the ST command is to reduce the data volume or rate by increasing the time per measurement AR1000 User s Manual Tan Acuity 2 6 aser Measurement 8 4 Set Zero Point OFx Factory default setting is 0 the sensor s natural zero point The OF command allows users to manually set a zero point anywhere relative to the sensor s natural zero point The commanded zero point can be a negative number The parameter units for OF are dictated by the scale factor SF See section 5 2 2 for information about scale factors SF 8 4 1 Set current distance to Zero SO The SO command performs a distance measurement and saves the measured reading as an offset value with inverted mathematical sign OF 8 5 Filter Measurements RMx y y z Factory default setting is 0 0 0 Do not use this command when the AR1000 is used to control equipment as it may cause hazards RM is intended to facilitate settings for a range of expected distance values Values which are found to be outside of this expected range will be corrected until matching the most recently valid measured values RM is only used in DT mode The command s format consists of three parameters which are separated by space 20h x designates the number of preceding measured values that will be evaluated in the
19. URE HOX c ccessscecesseeeceseeececsececeeaececsensececaaeeceesaeeecensaeescseeeeeeeseeeeneeas 28 8 7 SET HEATER OFF TEMPERATURE HEX cccsssscecesesececsseeececsececeeaececseceecesseeeceesueeeceesaeeessneeecessnreeenenes 28 9 TRIGGER MODE OPTIMIZATION esesesvvesvvssvessvssnvssnvennnennesnsennsennennnennsennsensvensnensnsnnnsnnnennesnnennnennsennsensnenenene 29 9 1 DESIGNATING TRIGGER MODE DF ccsscceesssseeesessceceeseececseneececsaceeceesaeeecneeaecesaeeecsesueeecseaeeceesueeeenenaes 29 9 2 SETTING A TRIGGER DELAY AND EDGE TDX Y ccecsscessseeeesssececessaececsecnececaeeecsesaeeecnsaaeeecsneeeeeeseeeenenes 29 9 3 TRIGGERING AUTOSTART TMX iii 29 9 3 1 Example 1 Triggering Autosta t insisi in e ENEE E 30 9 3 2 Example 2 Triggering Autostart ini ai 30 10 SERIAL COMMAND QUICK REFERENCE seesvosvvesvessvessvensvssevsnnnsnnvennennnenneenneensenseensesnsessnvssnensessnnsneee 31 AR1000 User s Manual Rev 1 10 i Acuity Laser Measurement AR1000 User s Manual y Rev 1 10 iv Acuity Laser Measuremen 1 Introduction This section is a guide to getting started with the AR1000 and this manual The AR1000 has a number of configurable parameters but many applications can use the sensor in its default factory configuration The recommended order for reading the manual is e General Overview Gives a brief understanding of the sensor operation e Operating Guidelines Provides a few important safety
20. ameter AH The alarm output is updated with each sample measured 7 1 Set the alarm start commence point ACx The default setting for AC is 1000 1000 meters is beyond the allowable range of the AR1000 The units for AC are dictated by the scale factor SF See section 5 2 2 for information about scale factors SF AC sets the beginning of the distance range for which the alarm output will be turned active The length of this active range can be set using the AW parameter 7 2 Set the alarm hysteresis AHx The default setting for AH is 0 1 Hysteresis is used to keep the Alarm output state from toggling rapidly near an alarm boundary becasue the sensor s measurement noise is causes the value to bounce across the boundary Hysteresis sets a boundary deadband to keep the Alarm output more stable The Alarm output is not allowed to change state as long as the measurement stays within the deadband The units for AH are dictated by the scale factor SF See section 5 2 2 for information about scale factors SF AH allows you to make parameter settings for the output transition hysteresis at the beginning and the end point of the active range of the alarm output The mathematical sign of AH is used to set the logic level HIGH or LOW of the Alarm state Positive sign active range is HIGH active No sign setting means positively signed Negative sign active range is LOW active 7 2 1 Positive ala
21. ault configuration the AR1000 does not measure data on power up In 4 20mA analog output mode the best accuracy and linearity for the current loop is obtained with a 500 ohm load to current loop return at the measurement point An out of range current indicates a sensor measurment error The alarm output wire can be used to connect to control equipment 3 2 2 Serial Connection to a Host Computer RS232 A 9 pin serial D sub serial connector can be attached to the serial output wires to connect the AR1000 directly to an IBM PC compatible 9 pin serial port 23 5 Figure 5 Wiring configuration for 9 pin connector for RS232 serial communications RS422 An RS422 adapter must be used to connect the AR 1000 to an IBM PC compatible conputer The RS422 wires are as follows lt lt RX Figure 6 Wiring configuration for RS422 serial communications For testing use a terminal emulation program such as the Windows HyperTerminal HyperTerminal is included in most versions of Microsoft Windows To access HyperTerminal follow these links START gt PROGRAMS gt ACCESSORIES gt COMMUNICATIONS gt HYPERTERMINAL After naming the connection and choosing an icon choose the COM port that the AR1000 is connected to In the next configuration screen set to 9600 baud 8 bits no parity 1 stop bit and no flow control to communicate with a sensor in the default configuration AR1000 User s Manual Rev 1 7 1 10 Acuity Laser Mea
22. ay the sensor on the floor or a table It may need to be held in place with a clamp or a weight Orient the laser so that the laser is not obstructed Use a piece of paper such as a business card to insert into the beam to use as a measurement target The laser should be aimed at a target such that the distance from the reference point to the target can be meausured Mount the sensor in such a way that the case is not twisted or warped Use four screws through the 14 6 6 mm mounting holes on the sides of the mounting flanges Attach the cable s 12 pin connector to the plug on the rear of the sensor AR1000 User s Manual Rev 1 7 1 10 Acuity Laser Measurement Connect the orange Supply and blue Ground wires of the sensor cable to a 10 to 30 volt DC power supply or use the power supply if the sensor came with one 1 3 2 Serial Data Wires The serial connection is required to set up a unit for operation 1 3 2 1 RS232 Model Connect the RS232 wires to a 9 pin D SUB male connector that can be plugged into a COM port of a PC RS232 Grey Ground to pin 5 Green Transmit to pin 2 and Yellow Receive to pin 3 See section 3 2 2 1 3 2 2 RS422 Model Connect the RS422 wires to a RS422 adapter connected to a PC COM port See section 3 2 2 Start a HyperTerminal program on the PC and set it for that COM port at 9600 baud 8 bit 1 start parity none 1 stop no flow control To view distance measurements
23. cecsesaececseceeceesaeeecsenaeeeceseecessaeeecsesaececseseeceeaueeecsesaeeesseeeeeneaes 25 8 1 1 Distance Tracking Mode DT cccscccsscesceescesseesseesecesecneececsecaaecacecaaecaeecseesaeeeseeaseseeeseeeeeeeeeeeaeeneeenaeents 25 6 1 2 Close range Distance Tracking DS J errrrrnrnnnrnnnrnnnvnnnnnnnnrnvernvvrnnvevavevervrervrnrnrnruenvvnnnvennvesnnssvsssvssevesere 25 8 1 3 10 Hz Distance Tracking DW cccccssccessceessecescceenseceeneeesecesccesseceeaeecsaeceeaeecsaeceeaeecsaeeeeaeecsaeceeaeecnaeeeeaes 25 8 1 4 50 Hz Distance Tracking DX eroronnvnronnvennvnevnnvennvnnernnennrneernvenrnsennensnrnsennrnenrassnnnnsnrasennensnrasennessnrssennn 25 8 1 5 Hardware Trigger Mode DF cssscsssssssscsseeseeseeseesecseesecusecesseesesecseesecseesecsaseneeaeeseesecaaeseenaeeneeasenes 26 8 1 6 Lake Single Sample DM EEE PE 26 8 2 AVERAGING FUNCTION SAX ccecssscecsesceceeseececeessececsnceecessaeeecseaaeeecaaeeceesaececseaaececeeeeessaeeecsesaeesseeeeeeneags 26 8 3 SET MEASUREMENT TIME STX ccccesssececsececesssececesaececseneececseeeecesaeeecsesaececaeeeceesaeeeceesaeeeceeeeeeeesneeesneaas 26 8 4 SET ZERO POINT OF Xn 27 8 4 1 Set current distance to Zero SO ccccccssscssccessececsceesscssseecsecsseeeessecseeeeesaesseeeeaesseseesaesseeeeesesseeeeesaeeees 27 8 5 FILTER MEASUREMENTS RMX Y Y Z cccccessssceccseeececsscceceesaeeecseeeeeecuseecsesaeeecsenseceesueeecseaaeeesensaeeeesneeeeneaes 27 8 6 SET HEATER ON TEMPERAT
24. dustries Inc AR1000 User s Manual y Rev 1 10 i Acuity Acuity Laser Measurement User s Manual for the AR1000 Series Laser Distance Sensor Rev 1 7 For use with AR1000 and AR1000H Table of Contents Te INTRODUCTION EO E E A A A E T E A decodes svesessssstevetesceses 1 1 1 GENERAL OVERVIEW cococcccnonononononononononononononononononononononononononononononono nono no nono no nono no nono no nono no nono no nono no nono nonenenonannn 1 1 2 DEFINITION OF TERMS ocococonononononononononononononononononononononononononononononono nono no nono no nono no nono no nono no nono no nano no none Ssns esans 2 1 3 QUICK START INSTRUCTIONS ccccssccecsesceesesnececsessececseseeceesaeeecnnaaeseceeeecsesaeeecseseecesaeeecseaaeeecseseeeessneeeeneaaees 2 1 3 1 Mounted east 2 1 3 2 Seal DAG Wires ma Fasadene barene enes ansat ose eten 3 1 3 2 1 R MoE enn Tee 3 1 3 2 2 RIM TN 3 1 3 3 Analog Output SIRIUS id End 3 1 3 4 AM STENA saa te rene N E E E E 3 2 GENERAL DESCRIPTION oscissssscscsssssccsssssccsssssscssceesescasoosesssseaseessssssssessessassasessssnsss saseesessecbesessssecssaseasssaasvesscess 4 2 1 PRINCIPLES OF OPERATION labels 4 DD MECHANICAL DIMENSIONS iba 4 23 INSTALEATION iaa 5 2 4 LASER SAFETY ee id 5 DO SENSOR MAINTENANCE oiean raa E a e EEEE EEEE EE AE a 6 2 6 SENSOR SERVICE da 6 DT SENSOR SPECIFICATIONS a 6 3 INSTALLATION AND CHECKOUT cisseisccsccssssvescsssvestesesdssevsscosscenccssscsnccssssenccssssvaceessess
25. e AR1000 The trigger input is intended for triggering a distance measurement with an external signal that is applied as a voltage between 3 V and 24 V The user specifies a delay time and trigger edge for measurement initiation Trigger level is defined HIGH Switch is closed LOW Switch is open Trigger edge is defined Rising edge Switch closes input voltage transitions from LOW to HIGH Falling edge Switch opens input voltage transitions from HIGH to LOW Figure 11 Wiring diagram for Trigger Input If a switch is used the input may need a debouncing circuit to prevent multiple triggers or triggers on the wrong edge This input circuit can be used with a supply from 10V to 30V The IK resistor limits the voltage at the sensor input V SUPPLY GL ORANGE 5 TRIGGER SWITCH NF TO AR1 20 SENSOR N TRIGGER INPUT IS BROWN AR1000 User s Manual A Rev 1 7 1 10 Acuity 14 Laser Measurement 5 Serial Interface Operation 5 1 Serial Hardware Interface The serial port hardware is installed either as RS232 order sensor p n AP1000232 or RS422 order sensor p n AP1000422 The installed serial port hardware can only be selected at the time of purchasing the AR1000 sensor The serial port allows full duplex operation 5 1 1 Communications Protocol Serial port communication is required to configure the AR1000 for operation The easiest way to commnicate is by using a PC with an RS232 communication port and a t
26. ed with a linearity of 0 08 inches 2mm Linearity will vary depending on temperature and surface reflectivity of the target surface The AR1000H unit version has an on board heater for cold use in cold environments 2 mm for white surfaces 15 C 30 C 3 mm for natural surfaces 15 C 30 C 4 mm at 0 1 0 5 m range in DS mode 15 C 30 C 5 mm over full temperature range 40 C 50 C 2 1 Principles of Operation The AR1000H uses the time of flight of light to measure distance The laser beam is projected from the housing s aperture and shines on a target surface where it creates a small spot From there the laser light is scattered in all directions A collection lens is located in the sensor to the side of the laser aperture It collects a portion of the reflected light which is focused on a photodetector and converted to an electrical signal The signal is amplified and symbolizes a shift in phase This phase is compared to a reference signal to determine the amount of shift and hence a change in distance 2 2 Mechanical Dimensions The following diagram shows the mechanical dimensions for the small AR1000 The sensor has four 6 6 mm holes on the side flanges for mounting to a fixture The cable is for power and all communication serial analog trigger power etc It is a 12 pin M18 flange mount connector Binder series 723 The outer case of the sensor is extruded aluminum with
27. edication alcohol and drugs Although the product can be operated without taking special safety precautions refrain from directly looking into the laser beam Do not direct the laser beam at other people to avoid potential eye hazards oder A Cars Manufactured at Schmitt Industries Inc 2765 NW Nicolai St Portland OR USA Complies with 21 CFR 1040 10 w Laser Notice 50 Figure 2 AR1000 laser safety labels The laser safety classification reflects worst case situations User settings or maintenance cannot increase the level of laser radiation Do not attempt to loosen any screws or open the sensor housing AR1000 User s Manual A Rev 1 7 1 10 Acuity Laser Measurement 2 5 Sensor Maintenance The AR1000 sensor requires little maintenance from the user The sensor lens should be kept clean of dust buildup as a part of regular preventative maintenance Use compressed air to blow dirt off the window or use delicate tissue wipes Do not use any organic cleaning solvents on the sensor If your sensor does not function according to specifications contact Schmitt Industries Inc Do not attmept to loosen any screws or open the sensor housing 2 6 Sensor Service The AR1000 sensor is not user serviceable Refer all service questions to Schmitt Industries Inc Do not attempt to loosen any screws or open the sensor housing 2 7 Sensor Specifications Go to http www acuitylaser com pdf ar1000 data sheet
28. ee section 9 2 for Trigger Delay and Edge command TD parameters Turn the Trigger Mode off when using DF TMO x see section 9 3 8 1 6 Take Single Sample DM On receipt of this command a single sample to be measured and outputs is generated The time to measure may also be limited by setting the ST parameter to a desired value This command does not change any configuration settings 8 2 Averaging Function SAx Factory default setting is 1 The SA function commands the sensor to output the average value of the previous 1 to 20 measured values parameter x has allowed values of 1 20 Calculation is based on this formula X X X X og Average value x withn SA 8 3 Set Measurement Time STx Factory default setting is 0 This setting affects DT DS DF and DM measurement modes The ST command allows users to manually set the sample period for the AR1000 The time required for the AR1000 to take a measurement depends on the selected measurement mode Generally the poorer the surface reflectance of a target the longer the AR1000 will take to determine its distance For example if error message E15 is output because of poor reflectance and insufficient time to measure the ST setting should be increased Available ST value range 0 to 25 x 0 Measurement time is automatic depending on returned signal The smallest time possible for attaining a quality measurement is used The minimum sample period with
29. erminal emulation program The communications protocol is in ASCII format Before an operating session begins users should configure the AR1000 sensor with parameters that meet the particular measuring site conditions and requirements All valid settings will be preserved when the AR1000 sensor is turned off and restored when turned back on They can only be replaced with new value entries or changed back to their default values by communication through the serial port Below is a short view of the commands accepted through the AR1000 serial protocol Online Help menu Starts distance tracking Starts distance tracking 7 m S tarts distance tracking on white target at 10 Hz SA SD ST Queries sets time to measure 0 25 SF SE ueries sets alarm start point AC AH ueries sets alarm hysteresis AW ueries sets alarm width HF ueries sets heater temperature OFF value ueries sets beginning of range 4 mA RE ueries sets end of range 20 mA eries sets removal of measured value Q Q Q Q HO Q Q Q Queri RM TD Q TM Queries sets trigger mode Queries sets baud rate Q ueries sets autostart Queries sets offset AS OF AR1000 User s Manual Rev 1 7 1 10 Acuity 15 Sets current distance as offset Tums laser off Displays all parameter values PR Resets all parameters to standard values 5 1 2 Baud Rate BR The Baud Rate is selectable via the serial interface and it requires
30. ference n c 1 4 6 DCD DTE DCE These three signals can be tied together to satisfy some PC signal requirements for hardware handshake n c 7 8 CTS RTS These two signals can be tied together to satisfy some PC signal requirements for hardware handshake RS422 RS422 is normally used for faster speeds and longer distances of communications Two wires usually twisted together carry each differential noise immune signal There are no standard PC connections A special adapter is required to connect to a PC using RS422 Color Green Receive data to sensor Yellow Receive data to sensor Voilet Trasmit data from sensor Black Trasmit data from sensor Gray Signal ground reference 4 1 4 Analog Output Blue Red The Blue wire is the return signal for the Analog Output It is connected to ground inside the sensor and should not be connected to ground outside the sensor Inadvertently connecting it to ground may cause a reduction in accuracy of the analog output The analog signal for distance is a 4 20 mA current loop Sensor error signaling can be configured to output either 3 mA or 21 mA In Current Loop mode the Red wire delivers a current proportional to the measured distance AR1000 User s Manual A Rev 1 7 1 10 Acuity 1 2 aser Measurement 4 20 mA R lt 500 N Figure 8 Wiring Diagram for Analog output The best conversion to voltage is obtained by connecting a 500 ohm load resistor 1 4 Watt m
31. igital and or analog output See TD section 9 3 to select the trigger delay and edge Note that if TM is on TM1 x then the trigger does not always produce the measurement output in the DF mode Set TMO x prior to using DF mode 9 2 Setting a Trigger Delay and edge TDx y The factory default setting is 0 O The Trigger Delay TDx y consists of two parameters which are separated by space 20h x 0 9999 delay time in milliseconds from trigger edge until measurement is performed y 0 falling l rising trigger level Example TD1000 O lt Enter gt In the given example the delay time is set to 1000 ms and the trigger is set to the falling edge HIGH to LOW transition 9 3 Triggering Autostart TMx y The factory default setting is 0 1 The Triggering Autostart function allows users to set the hardware trigger to initiate the auto start command set via parameter AS See Section 5 5 3 TMx y uses two parameters which are separated by a space 20h x O no autostart trigger 1 autostart trigger ON y 0 trigger on LOW 1 trigger on HIGH Triggering occurs via the external trigger input All starting modes which are selectable via AS can be launched and stopped by external triggering These are DS DT DW DX DF DM TP LO and ID Normally for triggering the trigger input must be held in the active state until completion of the function If the trigger is in the active state when the TM1 x command is issued then the
32. inimum between the red and blue wires at the measurement point This gives a 2 volt to 10 volt output range See Analog Output Operation section 6 for mode selection and scaling options The sensor may be connected directly to a meter or a filter may be inserted to reduce noise RED 1 DC VOLTS 10K FROM AR1000 SENSOR VOLTAGE MEASUREMENT DEVICE WA 588 BLUE COMMON Figure 9 Wiring Diagram for filtering the Analog output 4 1 5 Alarm Output White The White wire is the Alarm Output See Alarm Output Operation section 7 for operation options and details The Alarm Output is an open collector PNP transistor switch to the positive power supply When the Alarm Output is not active its output will be high impedance and no current will flow through it When the Alarm Output is active On it can source up to 500mA of current The load for the output should be connected to ground Blue wire The voltage on the Alarm wire must not exceed the limits of the Power Supply connection voltages orange and blue wires or excessive current may flow into the sensor and cause damage AR1000 User s Manual A Rev 1 7 1 10 Acuity 1 3 Laser Measurement ane 1 10 500mA Figure 10 Wiring diagram for Alarm Output 4 1 6 Laser Trigger Brown The Brown wire is the Trigger input Itis normally left unconnected to enable the laser The trigger input is used with the DF measurement mode or TM trigger mode setting in th
33. ions during sensor operation Avoid excessive vibration and shocks The sensor contains securely mounted but precisely aligned optical components Do not operate the sensor if the lens is fogged or dirty Do not scratch the lenses on the front face of the sensor Keep the lenses clean with expert optical procedures The lenses are glass with an anti reflection coating Avoid the use of organic cleaning solvents Do not touch the lenses with bare fingers The oils are very difficult to remove Operate only with DC supply voltages up to 30 volts 1 2 Definition of Terms Sensor The complete AR1000 measurement device Target The object of measurement The relative distance from the sensor to the target is measured by the sensor Laser Laser beam This bright light is emitted from the sensor reflected from the target and collected by the camera lens lt Range gt The maximum relative distance measurable by the sensor Range 1 lt Range gt 2 The region over which the target can be measured At the near end of the range the sensor measures zero At the far end of the range the sensor measures its maximum value its Range value 1 3 Quick Start Instructions This will get the sensor running in its factory default configuration Only one output type Serial or Analog is needed to indicate sensor operation 1 3 1 Mounting Caution be sure that the laser will not cause an eye hazard Quick suggestion L
34. light sun DX mode measured distance greater E18 ae Check measurement path for obstacles than specified target range E19 DX mode target speed gt 10 m s Reduce relative motion speed of target E23 Temperature below 14 F 10 C Increase ambient temperature to 14 F 10 C E24 Temperature below 140 F 60 C Reduce ambient temperature to 140 F 60 C E31 Faulty memory hardware EEPROM Reset parameters If it persists contact error technical support Reduce ambient light If it persists contact technical support E51 High ambient light or hardware error E52 Faulty laser diode Contact technical support EEPROM parameter not set ex Verify the Scale Factor SF is not zero E53 ae division by zero Contact technical support E54 Hardware error PLL Contact technical support E55 Hardware error Contact technical support E61 Invalid serial command Verify command set E62 ee eras Verify Parity NONE in serial interface serial communication settings Check time of emitted signals in application E63 SIO Overflow software Integrate delay on transmission if necessary Check format of serial interface 8 data bits 1 Bey eae eee stop bit NO Parity 8N1 5 4 Laser ON and Laser OFF LO LF 5 4 1 Laser ON LO This command turns the laser beam on This function can be useful for aiming the laser at a target The sensor does not measure in this mode
35. n below Symptom Possible Cause Correction No laser light and no Sampling is turned off Turn Sampling on sample data Power supply voltage is too low Check power supply input voltage Serial port not Power supply voltage is too low Check power supply input voltage respondin A P 8 Baud rate incorrect or unknown See section 3 5 1 Error code Exx 1s transmitted on serial See Error codes section 5 3 port 3 5 1 Serial Communications Check If no information is received over the serial port check the power supply and serial wire connections The sensor may be in a configuration that prevents serial communication such as being set at the wrong baud rate Type PR lt Enter gt to reset the sensor to the factory defaults including 9600 baud rate If the sensor s baud rate is unknown then the PR lt Enter gt command must be issued from the hyperterminal program while set at each of the AR1000 s possible baud rates until the AR1000 User s Manual Rev 1 7 1 10 Acuity AR1000 accepts the command and sets the baud rate to 9600 The possible baud rates are 2400 4800 9600 19200 and 38400 3 5 2 Sensor Output Check If the sensor output value is in error check that the sensor and target are stationary and stable that the target is at least 4 inches 0 1 m from the sensor s lens and that the laser beam is hitting the target The distance offset setting may alter the values output by the senso
36. nnssnsnenenene 21 6 1 SETTING THE ANALOG RANGE BEGINNING POINT RB ccssccessesceeeesececseceececseeeeceeaeeecessaeeeseneeeeesneeeesenaes 21 6 2 SETTING THE ANALOG RANGE END POINT RE ceccssccesesscececseececeseeeecseceececaaeecsesaeeeceeaaeeeseneeeeessneeeseeaes 21 6 3 SETTING THE ERROR MODE SEO SE1 OR SE2 o ceeceecececsseceesscceceeeeeeceseaeeecseeecessaececseaaececseeeeesssneeeesenaes 21 7 ALARM OUTPUT OPERATION AC AH AW SE eessessvesssesvsesvesseessennsensvensvenevssnvsnnvennsennennnennsennesnsnenesene 22 7 1 SET THE ALARM START COMMENCE POINT ACX cccssssecesseececeesseeecssneececeneeeceesaeeeceesaeeeeseeeeeesseeeseeges 22 7 2 SET THE ALARM HYSTERESIS AHX cccssssecesssececeessececenseececsnceceesuececsecaececeeeecsesaeeecsesaeeecenseeeessneeeseeeas 22 7 2 1 Positive l rm NASA O 22 7 2 2 Negative IIA IRA 22 7 3 SET THE ALARM WINDOW AW cccsssscecsssceecesssneecsesaeeecenseececsaeeeceesaececseseececsaasecsesaeeecnesaeeeseeeseseesaesessges 23 7 4 EXAMPLE OF ALARM OUTPUT CONFIGURATION cccccsssceceeseececeseeececeeeeceesaececeeseececaeeececaueeecseeeecessureeennes 23 7 5 ERROR MODE BEHAVIOR FOR THE ALARM OUTPUT SEO SEI OR SE2 coooooccccococonoconononononnnocononcnnoonnncnnnnns 24 8 PERFORMANCE OPTIMIZATION eeeseosveesvessvessvssnvssnvennvennnsnnennsvenevnneensennsenseensnensnsnnnssnnsnnesnesnnnsnnnennennsennenene 25 8 1 MEASUREMENT MODES sssceceesseeecessceceese
37. o be executed Take single sample DM Serial command to take a single distance reading Temperature display TP Displays AR1000 internal temperature C Averaging function SAx X is an integer to 20 Calculates a floating average SAI ASCII output format SDd Decimal uu SDa SDh Hexadecimal output Set measurement time STx Manually set the sample period 1 to 9999 ms 0 self adjust STO Scale factor SFx x Used to obtain output in units other than meters SF1 SEO Hold last valid measurement Error mode for Alarm Output SEI Alarm Low to High SEI SE2 Alarm High to Low Alarm start point ACx The location where the alarm output activates AC1000 Alarm hysteresis AHx x Behavior of alarm AHO 1 Alarm window AWx x Sets the active range for the alarm output AW100000 Heater ON temperature HOx Sets the temperature below which the heater activates AR1000H only HO3 Heater OFF temperature HFx Sets the temperature above which the heater de activates AR1000H only Zero point for Analog output RBx Sets the distance for 4 mA RB1000 Span point for Analog output REx Sets the distance for 20 mA RE2000 Filter measurements RM x y y z Filters z readings outside the window of y y after evaluating x readings RMO 00 Trigger delay for DF mode TDxy x trigger delay 0 9999 ms y trigger edge l rising 0 falling TDO 0 Setting a Trigger mode TMx y Delay for x with y edge TMO 1 2400 BR2400 4800 BR4800 Baud rate BRx 9600 BR9600 BR9600 19200 BR19200 38400 BR38400 x Configures
38. powder coated paint for corrosion resistance L 1 884 40 4mm 7 877 195 Oenen O i Log IN i H 9 va i an E E 1 890 48 Omen 5 620 16 0 k 3 937 1000mm A H Dust 15m a if H E G SENSOR ZERO POINT L i 276 7 Omm 0 260 26 Germ 4X AR1000 User s Manual A Rev 1 7 1 10 Acuity Laser Measurement 2 3 Installation The AR1000 sensor is typically installed by affixing the sensor to a machined bracket with bolts through the four mounting holes in the sensor Their location is shown in the mechanical drawing above The laser should be aimed at a target such that the distance from the reference point to the target can be meausured Laser strikes distant target and measures the distance based on the laser reflection returned to the collection lens Figure 1 Zero distance reference point 2 4 Laser Safety Caution This laser device should not be aimed at the human eye Installers of laser sensors should follow precautions set forth by ANSI Z136 1 Standard for the Safe Use of Lasers or by their local safety oversight organization The AR1000 is a class 2 laser product as stipulated in IEC 60825 1 DIN EN 60825 1 2001 11 and a class II product under FDA 21CFR In the event of accidental short time laser exposure the human eye is sufficiently protected by its own aversion response blinking This natural reflex may be impaired by m
39. r Reset the sensor to the factory default to remove its effect The sensor may need to warm up for 5 10 minutes before reaching full accuracy Leave it on for a few minutes and re check the sensor accuracy AR1000 User s Manual sate Acuity 1 0 aser Measurement 4 Signal and Power Interface The AR1000 has a multipurpose cable sensor cable with solder tail wires Connection and termination according to the instructions is essential for correct sensor operation Read the wire descriptions for connection information Figure 7 AR1000 multipurpose cable with 10 conductors plus shield and corresponding pin arrangments 4 1 Sensor Cable Wire Colors and Functions The tables below shows the wiring on systems ordered without power supplies Wire Pin Function in All Modes Brown C External Trigger Input 3V to 24 V Red D Analog output 4 20 mA current loop Orange G Supply Voltage 15V 10 30 VDC White H Alarm Output Grey J Ground serial Blue L Ground Power supply common return Clear Shield The serial communications wires can be used for RS232 or RS422 Function in Selected Serial Mode Wire Pin RS232 models RS422 models Yellow B RxD Receive Data RX Receive Data Green A TxD Transmit Data RX Receive Data Black E TX Transmit Data Violet F TX Transmit Data Grey J Ground serial 4 1 1 Power Supply Orange Blue
40. range is 120 feet 30 m The Class 2 visible laser diode makes it simple to aim the rangefinder Speed and accuracy performance vary depending on target surface reflectance The AR1000 technical data sheet specifies sensor performance standards A variety of configuration settings can be selected via the serial port The complete list of settings is found in the AR1000 Command Set chapter and each setting is discussed in detail in a specific operation chapter The Sample Rate can be specified and the sensor has maximum capability of 50 samples per second Sampling may be turned on and off It can even be triggered using an input signal wire or a serial command Measurement output can be in the form of serial data RS232 or optional RS422 Analog Output 4 20mA current loop Special order sensors include Profibus or SSI interfaces Those interface configurations are not discussed in this manual Contact Acuity for details AR1000 User s Manual Rev 1 7 1 10 Acuity Do not point the sensor at any person particularly a person s eyes or face Do not attempt to disassemble the sensor or loosen any screws Improper disassembly will destroy the optical alignment of the sensor and necessitate factory repairs Do not operate the sensor in areas where the sensor case is exposed to direct sunlight for extended periods or where the air temperature is more than 50 C 122 F or less than 10 C 14 F Don t allow fast temperature variat
41. returned product without an RMA number 2 Ship the product to Schmitt Industries postage prepaid together with your bill of sale or other proof of purchase your name address description of the problem s Print the RMA number you have obtained on the outside of the package This device has been tested for electromagnetic emissions and immunity and has been found to be in compliance with the following directives for class A equipment EN 61000 6 2 2002 EN 55011 2000 This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Note This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this device in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his or her own expense This manual copyright 2009 Schmitt In
42. rm hysteresis In the case of a positive AH the output switches with increasing distance from LOW to HIGH if the distance is found to be greater than AC AH 2 from HIGH to LOW if the distance is found to be greater than AC AW AH 2 with decreasing distance from LOW to HIGH if the distance is found to be smaller than AC A W AH 2 from LOW to HIGH the distance is found to be smaller than AC AH 2 7 2 2 Negative alarm hysteresis In the case of a negative AH the output switching pattern will be the opposite of positive with increasing distance AR1000 User s Manual eee Acuity 2 2 aser Measurement from HIGH to LOW if the distance is found to be greater than AC AH 2 from LOW to HIGH if the distance is found to be greater than AC AW AH 2 with decreasing distance from HIGH to LOW if the distance is found to be smaller than AC AW AH 2 from HIGH to LOW the distance is found to be smaller than AC AH 2 7 3 Set the alarm window AW The default setting for AW is 100000 The units for AW are dictated by the scale factor SF See section 5 2 2 for information about scale factors SF AW sets the length of the active range beginning at AC AW is always equal or greater than 0 zero AW is always equal or greater than IAHI absolute value of AH 7 4 Example of alarm output configuration AH AH H 1 H 1 e L LOW HIGH LT AW Dist gt Figure 12 Alarm output behavior with AH and AH
43. ry default settings 5 5 3 Autostart configuration ASxx Factory default setting is ID Autostart defines which function will be carried out when the AR1000 is powered on Possible entries are those delivering a measured value on the output side an ID command or the command for turning the laser on LO For example if ASDT lt Enter gt has been commanded the AR1000 sensor will begin with distance tracking after power up Note that the Autostart setting will not operate at power up if Trigger Mode is ON TM1 x and the trigger condition is not met 5 5 4 Temperature Display TP The TP lt Enter gt command displays the AR1000 s internal temperature in Celcius This may be helpful information if the sensor will be installed in environments which exceed the temperature specification for the unit 10 to 60 C 5 5 5 Command Display ID The ID lt Enter gt command displays the AR1000 s command set in the following format AR1000 User s Manual eee Acuity 1 9 aser Measurement ID DT DS DW DX DF DM TP SA SD ST SF SE AC AH AW HO HE RB RE RM TD TM BR AS OF SO LO LF PA PR En En En En En En En En En En En En En En En En En En En En En En En En En En En En En En En Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Cer Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler Ler ter Ler Ler SAx Enter
44. senseensnensesnnnssesnnvssnessnnsnnnsnnennnnenenene 15 5 1 SERIAL HARDWARE INTERFACE AA 15 5 1 1 Communications Protocol ccccccccecccecccscvessececececssussaeceescecsesssusssanecesecseseseeseeecessesseaaaeeececeesesusseeeeeseeseeaes 15 5 1 2 BARA BI a a eek 16 5 2 SERIAL DATA OUTPUT SD A a as 16 5 2 1 ASCII Output Format SDd SDh or SDS ennrnrnrnronnvnrnnnvennvnnennvenrnnennnnnnrnsennnennrnsennnnnnrnsennnennrnsersennnssee 16 5 2 2 Serial Data Units or Scale Factor SFX X csccccccssccccecsscceeesscecccsseceeseeecesaeeecsesaeeeeneseeeessaeeeesesaeeesnesaeeeeees 17 5 3 ITA 17 5 4 LASER ON AND LASER OFF LO LP c cccccccssssececsssceceeseececsenaeeeceneaeceesaeeecnssaececseeeeeneaaeeecsesaeeesnseeeeneaes 18 5 4 1 Laser ON LA EEE 18 5 4 2 Laser OFF LP A eolica 18 5 35 DISPLAYING CONFIGURING AND RESETTING PARAMETERS PA PR AS TP ooocococcccconocnnononononoconnncnnnnns 18 5 5 1 Displaying current settings PA usina iii 18 OROYA RESCUING Sensor Seres PR iii A E E 19 5 5 3 Autostart configuration ASXX ernrrnvrrnvrrnvrrnvvrnnvenrrnvrrnrrenarvranrannrnrnenevensnennvesnvesnvvsnrvevavevasvrasnrasvensneseen 19 5 5 4 Temperature Display TP vissssoscsnessnivanssonsousonisacsosiensnesnteuscaahdsiceaseassecvoeiboceepedebcesseadhse dpensaasensdentuepnaeateas 19 IIJ Command Display ID Ji as E iaasa 19 6 ANALOG OUTPUT OPERATION RB RE SE ssseeveesvesssesssesssenvessvensvessensvensvensvsnnvennvennesnnennnennse
45. seseccsssseusesecesssessseossess 7 3 1 MOUNTNG a co 7 3 2 CABLING ua io Ue SESE o cateo cciii 7 32 1 standalone Cabling iia ee de 8 3 2 2 Serial Connection to a Host Computer sesrnnnonnrnnnrnvnnnnnnnnnnrnnnrnnrennvevareranvranvrnnnenenennvennvesnvesnvrsnsvevsssraseree 3 3 POWER ON taa 9 3 4 VEREYING OPERATION ne 9 3 5 TROUBLESHOOTING eier 9 3 5 1 Serial COMMUNICATIONS Checkuuidunminuadiemdndae mete dendi etisk a 9 3 5 2 Sensor Output Check indicada 10 4 SIGNAL AND POWER INTERFACE susssesevessivvveansvsvensanvnssnsnssnessennsnnsedensensesnneessnsnesnssnessssvtnneesnstnsnssnnsnens nnsnen 11 4 1 SENSOR CABLE WIRE COLORS AND FUNCTIONS ooccococcconcnonononononononononononononononononononononnnnnonononnnnnnnonononincnnnnos 11 4 1 1 Power Supply Orange Blue vs ii cia 11 4 1 2 Shield Cl di 12 4 1 3 Serial Communications Green Yellow Black Violet ccccccccccccscsesssccecssssssececececsesssecececeesessceseeeseeees 12 4 1 4 Analog Output Blue Rei A siveengessusebiesnaddayesuetycbbwvadstadassae baie 12 4 1 5 Alarm Output White cancsssssinasecvennssanets vnienensevapeesdaniecnednadsesddvadedeossninenedensses sanedscvedeaseasnddeeadets iee iaa 13 4 1 6 Laser Trigger BOWN ccssecceosthnioesessi ssseinvoensdiseosienicnsedpegcesedsyicnootout ioei aE a Ea eee ENa eria 14 AR1000 User s Manual Rev 1 10 i Acuity Laser Measurement 5 SERIAL INTERFACE OPERATION sssosveesvessvesvvssnvssnvennvenneennennsvnnsenneensenn
46. surement 3 3 Power On Connect a 15 volt power supply to the power and ground lines of the sensor cable See Signal and Power Interface section 4 for wire connections Only the power and ground need be connected for operation in addition to the serial interface Caution be sure that the laser will not cause an eye hazard When power is applied the laser beam will be emitted from the laser aperture near the large lens of the AR1000 The laser beam will be bright red when viewed against a white surface The sensor will not transmit measurement readings until a measurement mode is selected To begin measuring in Distance Tracking mode type DT lt Enter gt Distance readings will scroll down the Hpyerterminal window and the default units are be in meters See section 5 1 for command information 3 4 Verifying Operation In DT distance tracking mode the AR1000 transmits approximately 6 samples per second at 9600 baud over the serial signals and transmits measured distance over the current loop output at the same update rate The actual measurement speed will depend upon the selected measurement mode and the reflectance of the target surface The current loop should put out 4 mA at the near end of the measurement range and 20 mA at the far end Check either or both signals to verify basic sensor operation 3 5 Troubleshooting The sensor displays simple error indications using its function display LEDs Trouble shooting steps are show
47. tion use and results obtained License Terms And Conditions a You are granted a non exclusive perpetual license to use the Software solely on and in conjunction with the product You agree that the Software title remains with Schmitt Industries Inc at all times b You and your employees and agents agree to protect the confidentiality of the Software You may not distribute disclose or otherwise make the Software available to any third party except for a transferee who agrees to be bound by these license terms and conditions In the event of termination or expiration of this license for any reason whatsoever the obligation of confidentiality shall survive c You may not disassemble decode translate copy reproduce or modify the Software except only that a copy may be made for archival or back up purposes as necessary for use with the product d You agree to maintain all proprietary notices and marks on the Software e You may transfer this license if also transferring the product provided the transferee agrees to comply with all terms and conditions of this license Upon such transfer your license will terminate and you agree to destroy all copies of the Software in your possession Procedures for Obtaining Warranty Service 1 Contact your Acuity distributor or call Schmitt Industries Inc to obtain a return merchandise authorization RMA number within the applicable warranty period Schmitt Industries will not accept any
48. tips e Definition of Terms An aid for proper communication e Quick Start Instructions This should provide the information necessary to connect the sensor and verify its operation either with a serial terminal program at 9600 baud or by connecting the current loop or Alarm Output interface e General Description Gives important laser operation mechanical and mounting information e Installation and Checkout Tailor the application Use the other chapters for reference Signal and Power Interface how to hook everything up Serial Interface Operation modes formats bias Analog Output Operation current loop voltage scaling Alarm Output Operation alarm settings Performance Optimization Sample Rate Background Elimination Exposure control AR1000 Command Set explains all commands for customizing the application 1 1 General Overview The AR1000 is a time of flight rangefinder that measures distance using a laser beam a photodiode and a microprocessor The rangefinder works based on comparative phase measurement by emitting modulated high frequency light which is diffusely reflected back from the target with a certain shift in phase This return signal is compared with a reference signal From the amount of phase shift a resulting distance is determined with great accuracy The maximum range measurement for the device is 500 feet 150 m using special reflective targets On normal surfaces the maximum
49. tive targets return strong signals to the AR1000 sensor and minimize the time required to perform internal algorithms In addition to requiring a cooperative target there may not be jumps in measured distance greater than 6 3 in 160 mm per sample period The target should not move faster than 5 2 ft sec 1 6 m sec 8 1 4 50 Hz Distance Tracking DX The 50 Hz Distance Tracking mode can be selected when working with a cooperative target A cooperative target is a target surface with high diffuse reflectivity Examples of cooperative targets include white surfaces paper paint etc or special reflective targets contact technical service Cooperative targets return strong signals to the AR1000 sensor and minimize the time required to perform internal algorithms In addition to requiring a cooperative target there may not be jumps in measured distance greater than 6 3 in 160 mm per sample period The target should not move faster than 13 AR1000 User s Manual Ta Acuity 2 5 aser Measurement ft sec 4 m sec For higher rates of measurement preceding measured values will be included in the process to calculate a currently measured value 8 1 5 Hardware Trigger Mode DF This serial command enables the Trigger input to cause single sample to be measured and outputs to be generated The time to measure may also be limited by setting the ST parameter to a desired value The maximum suggested trigger is 3 5 Hz with ST1 S
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