LMI Technologies DynaVision S Series User manual

SPR-02
Intelligent Single Point Sensor
USER MANUAL
Copyright LMI Technologies Inc. 2003
Version A

Copyright LMI Technologies Inc. 2003

FOWARD
Copyright LMI Technologies Inc. 2003
This is an operational guide and technical manual that offers guidelines on
how to install, configure and operate the DynaVisionSPR-02 Intelligent
Single Point Sensor.
This document, submitted in confidence, contains proprietary information,
which shall not be reproduced or transferred to other documents or disclosed
to others or used for manufacturing or any other purpose without prior
written permission of LMI Technologies Inc.

Copyright LMI Technologies Inc. 2003
iii
1. INTRODUCTION 1
1.1 DESCRIPTION OF THE DYNAVISIONSPR-02 SENSOR 1
1.2 GENERAL FEATURES 1
1.3 OPERATIONAL FEATURES AND SPECIFICATIONS 2
1.3.1 POWER REQUIREMENTS 2
1.3.2 COMMUNICATIONS 2
1.3.3 ENVIRONMENTAL 2
2. HARDWARE INSTALLATION 3
2.1 PACKING 3
2.2 LASER SAFETY ISSUES 4
2.2.1 OEM SAFETY RESPONSIBILITIES 4
2.3 MECHANICAL MOUNTING 6
2.3.1 MEASUREMENT RANGE 6
2.3.2 ORIENTATION RELATIVE TO OBJECT BEING VIEWED 7
2.3.3 MULTIPLE SENSOR MOUNTING REQUIREMENTS 8
2.4 CONNECTOR AND INTERFACE REQUIREMENTS 10
2.4.1 CONNECTOR TYPE AND MANUFACTURERS 10
2.4.2 SENSOR CONNECTOR PIN OUT 10
2.4.3 CABLE FOR RS-485 11
2.4.4 CABLE CONNECTOR PIN OUT 11
2.4.5 CABLE POWER REQUIREMENTS 12
2.5 MAINTENANCE 13
2.5.1 MECHANICAL 13
2.5.2 CLEANING 13
2.5.3 AIR PURGE SYSTEMS 13
3. SERIAL COMMUNICATIONS 14
3.1 GENERAL OVERVIEW 14
3.2 RS-485 HARDWARE SPECIFICATIONS 14
3.2.1 INTERCONNECT SPECIFICATION 14
3.2.2 MULTIDROP SPECIFICATION 15
3.3 PROTOCOL 16
3.3.1 GENERAL PACKET PROTOCOL 15
3.3.2 PACKET DESCRIPTION 15
3.3.3 PACKET EXAMPLE 17
3.4 ERROR HANDLING 18
3.4.1 SENSOR AND HOST ERROR HANDLING 19
3.5 RE-SYNCHRONIZING TIMING 20
3.5.1 SENSOR 20
3.5.2 HOST 20

\
Copyright LMI Technologies Inc. 2003
ii
4. SENSOR COMMANDS AND RESPONSES 21
4.1 GENERAL OVERVIEW 21
4.1.1 TURN LASER ON22
4.1.2 TURN LASER OFF 22
4.2 SCANNING COMMANDS 23
4.2.1 SET SCAN INTERVAL 23
4.2.2 START SCAN 23
4.2.3 STOP SCAN 24
4.2.4 SET SCAN FILTER FACTORS 24
4.2.5 FILTER SCAN BUFFER 24
4.2.6 READ HIGH /LOW /AVERAGE OF SCAN 24
4.2.7 READ SCAN BUFFER 25
4.3 SET MODE/OPERATION COMMANDS 26
4.3.1 SET MODE 26
4.3.2 SET OFFSET/COSINE/MULTIPLIER 27
4.3.3 SET ADDRESS 27
4.3.4 SET ANALOG OUTPUT FACTORS 28
4.3.5 SET CONFIGURATION VARIABLES 29
4.3.6 SET BAUDRATE 30
4.3.7 SET ERROR CHENGING 31
4.3.8 SET TO DEFAULTS 31
4.4 READ CURRENT VALUES 36
4.4.1 READ CURRENT POSITION 36
4.4.2 READ CURRENT SENSOR SETUP 36
4.4.3 READ CURRENT SENSOR STATUS 37
4.4.4 READ CURRENT ERROR STATUS 38
4.4.5 READ ANALOG OUTPUT FACTORS 38
4.4.6 READ VERSION NUMBER 39
4.4.7 READ CONFIGURATION VARIABLES 39
4.5 HIGH SPEED POLLING MODE 39
4.5.1 GENERAL DESCRIPTION 39
4.5.2 PUT SENSOR IN HIGH SPEED MODE 40
4.6 SUMMARY OF COMMANDS 41
5. TROUBLE SHOOT 42
5.1 TROUBLE SHOOTING 42
5.1 IN A MULTI-DROP CONFIGURATION,ONE OR MORE
SENSORS DO NOT RESPOND AND DO NOT PROVIDE
DATA TO THE SERIAL INTERFACE 42
5.2 DATA APPEARS ERRATIC OR JUMPY 42
5.3 DATA IS NOT AS ACCURATE AS EXPECTED 43

TABLE OF CONTENTS
Copyright LMI Technologies Inc. 2003
iii
6. PSEUDO CODE 46
6.1 MAIN LOOP 46
6.1.1 READ SENSOR RANGE 46
7. PC - DEMO HARDWARE AND SOFTWARE 49
7.1 PURPOSE 49
7.2 INTERFACE CABLE 49
7.3 USING SPR02 SETUP UTILITY 49
7.3.1 CONNECTING TO THE SENSOR 50
7.3.2 CHANGING/VIEWING SENSOR PARAMETERS 50
7.3.2.1 VIEW/EDIT SENOSR ID 51
7.3.2.2 VIEW/EDIT/DIAGNOSTICS_RANGE/SPOT 56
7.3.2.3 VIEW/EDIT/DIAGNOSTICS_SCAN BUFFER 59
7.3.2.4 VIEW/EDIT /DIAGNOSTICS_ERRORS/STATISTICS 60
8. GETTING FURTHER HELP 61

INTRODUCTION
Copyright LMI Technologies Inc. 2003 1
1. Vision Sensor covering the general description, features and specifications.
1.1 DESCRIPTION OF THE DYNAVISONSPR-02 Sensor
The DynaVisionS-Series Intelligent Vision Sensor is a laser source (Models 6-32, 16- 32, 16-168)
non-contact optical displacement sensor for use in industrial applications.The sensor is assembled
entirely from solid-state components housed in a rugged, gasketed enclosure. Scanning is
accomplished by projecting a continuous light beam onto the surface to be measured and detecting
the wave image of this beam on a Charged Coupled Device (CCD) array. The sensor measures the
position of an object that is locat
ed between 6.0" (152.4 mm) and 168. +" (4267+ mm) from the front
surface. The range varies according to the model.DynaVisionS-Series Sensors interface easily to
automated systems. A single connector supplies power to the sensor and the communication link
between itself and a host computer and 0 to 10 VDC and 4 to 20mA analog signal. Communication
with the host computer is via a standard RS-
485 serial interface. Commands are issued from the host
computer to set parameters and control the sensor. Multiple sensors can be connected to the same
serial communication line for a multi-drop configuration. Commands can be either broadcast to all
sensors on a multi-drop configuration or sent as individual commands to specific sensors. The 0 to
10 VDC and 4 to 20mA analog range signal can be used by themselves or simultaneously with serial
communications.
1.2 GENERAL FEATURES
16 bit Analog Devices DSP
Flash memory for sensor parameters
High speed RS-485 - serial interface to host
Multiple Vision Sensors on one multi-drop line
Rugged Industrial packaging
Single Power Supply
Internal Power Regulation
Range Readings Available in Digital or Analog Formats
Range redings are available in imperial or metric
0 to 10 VDC analog range output
4 to 20 mA analog range output

INTRODUCTION\
Copyright LMI Technologies Inc. 2003
2
1.3 OPERATIONAL FEATURES
AND SPECIFICATIONS
Range 6" to 168" (152.4 to 4267 mm)
Actual range is determined by the sensor
Programmable .60ms
Sample Rate
Sample Buffer in 8192 samples (8 Kbytes)
1.3.1 POWER
REQUIREMENTS
15-30 VOLTS DC @500MA
Analog Output 0- 10 VOLTS DC (programmable)
4-20mA (programmable)
1.3.2 COMMUNICATIONS
TYPE RS-485, FULL DUPLEX
Communications Rates 9600, 19200 , 38400, 57600 baud
preset to 57600 baud
Configuration 8 Data Bits,
1 Stop Bit,
No Parity
1.3.3 ENVIRONMENTAL
Ambient TemperatureOPERATING MIN 0C(32 F)
MAX +50 C(122 F)
STORAGE MIN -30 C(-22 F)
MAX +70 C(158 F)
Relative Humidity 95% Maximum Non-Condensing at 40
C (104 F)
Housing NEMA 4 Gasketed Aluminum
Enclosure

SERIAL COMMUNICATIONS
Copyright LMI Technologies Inc. 2003 3
This chapter describes the requirements to install the sensor.
2.1 PACKAGING
Before installation of your sensor, please ensure that all components were shipped in
your package. It should contain:
Sensor
Manual
Software diskette
Cable (cable supplied by LMI is “DEMO CABLE”for testing purposes only)
Visually inspect the sensor. The sensor is a single metal enclosure with a connector on
one side and laser and sensor viewing windows on the opposite side. Ensure there is no
damage to the enclosure, laser sensor viewing windows, connector or glass. If you
notice significant flaws, please contact LMI Technologies Inc.

SERIAL COMMUNICATIONS
4 Copyright LMI Technologies Inc. 2003
2.2 LASER SAFETY ISSUS
The DynaVisionscanner head uses lasers for measurement.
Specific safety precautions must be taken
Caution! Performance of procedures or controls other than those specified herein may result
in hazardous radiation exposure.
WARNING! All SPR-02 sensors (Models 6-32, 16-32, 16-168) are Class III type laser
devices. Regardless of the power rating, or visibility of the laser do not view directly, or
through a mirror, as it may result in severe damage to the eyes.
Laser
Laser
Sensor
WARNING! Do Not look directly
into the laser beam
2.2.1 OEM SAFETY RESPONSIBILITIES
LMI Technologies Inc. works closely with Original Equipment
Manufacturers (OEMs) in achieving certification of their own applications by referencing the
report accession number. However, the following precautions should be addressed by the OEM
to ensure safety in the operation of laser equipment.