Riftek RF605-25/50 User manual

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
2
Contents
1. Safety precautions................................................................................................................4
2. Electromagnetic compatibility...............................................................................................4
3. Laser safety..........................................................................................................................4
4. General information..............................................................................................................4
5. Basic technical data..............................................................................................................4
6. Example of item designation when ordering.........................................................................5
7. Structure and operating principle..........................................................................................5
8. Dimensions and mounting....................................................................................................6
8.1. Overall and mounting dimensions.................................................................................6
8.2. Overall demands for mounting......................................................................................7
9. Connection...........................................................................................................................7
9.1. Designation of connector contacts................................................................................7
9.2. Cables..........................................................................................................................8
10. Configuration parameters.....................................................................................................8
10.1. Time limit for integration................................................................................................8
10.2. Sampling mode.............................................................................................................9
10.3. Sampling period............................................................................................................9
10.4. The point of zero...........................................................................................................9
10.5. Line AL operation mode..............................................................................................10
10.6. Time lock of the result.................................................................................................10
10.7. Method of results averaging........................................................................................10
10.8. Number of averaged values/time of averaging............................................................11
10.9. Factory parameters table............................................................................................11
11. Description of RS232 and RS485 interfaces.......................................................................11
11.1. RS232 port .................................................................................................................11
11.2. RS485 port .................................................................................................................11
11.3. Modes of data transfer................................................................................................11
11.4. Configuration parameters ...........................................................................................11
11.4.1. Rate of data transfer through serial port..............................................................11
11.4.2. Net address ........................................................................................................12
11.4.3. Factory parameters table ....................................................................................12
11.5. Interfacing protocol.....................................................................................................12
11.5.1. Serial data transmission format...........................................................................12
11.5.2. Communication sessions types...........................................................................12
11.5.3. Request ..............................................................................................................12
11.5.4. Message.............................................................................................................12
11.5.5. Answer................................................................................................................13
11.5.6. Data stream ........................................................................................................13
11.5.7. Request codes and list of parameters.................................................................13
12. Analog outputs ...................................................................................................................13
12.1. Current output 4…20 mA ............................................................................................13
12.2. Voltage output ............................................................................................................14
12.3. Configuration parameters ...........................................................................................14
12.3.1. Range of the analog output.................................................................................14
12.3.2. Analog output operation mode............................................................................14
12.4. Factory parameters table............................................................................................14
13. Request codes and list of parameters ................................................................................15
13.1. Request codes table...................................................................................................15
13.2. List of parameters.......................................................................................................15
13.3. Notes..........................................................................................................................16
13.4. Examples of communication sessions ........................................................................16
14. Parameterization program..................................................................................................18
14.1. Function......................................................................................................................18
14.2. Program setup............................................................................................................18

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
3
14.3. Obtaining connection to sensor...................................................................................18
14.4. Checking of the sensor operability..............................................................................20
14.5. Display, gathering and scanning of data.....................................................................21
14.6. Setting and saving parameters of the sensor.............................................................21
14.6.1. Setting parameters..............................................................................................21
14.6.2. Saving parameters..............................................................................................22
14.6.3. Saving and writing a group of parameters...........................................................23
14.6.4. Recovery of default parameters ..........................................................................23
15. RF60X-SDK. Function description......................................................................................23
15.1. Connection to COM-port (RF60x_OpenPort)..............................................................23
15.2. Disconnection from COM-port (RF60x_ClosePort) .....................................................23
15.3. Device identification (RF60x_HelloCmd).....................................................................24
15.4. Reading of parameters (RF60x_ReadParameter).......................................................24
15.5. Saving current parameters in FLASH-memory (RF60x_FlushToFlash).......................25
15.6. Restoration of default parameters from FLASH-memory (RF60x_RestoreFromFlash)26
15.7. Latching of the current result (RF60x_LockResult) .....................................................26
15.8. Getting measurement result (RF60x_Measure) ..........................................................26
15.9. Starting measurement stream (RF60X_StartStream)..................................................27
15.10. Stopping measurement stream (RF60x_StopStream).............................................27
15.11. Getting measurement results from the stream (RF60X_GetStreamMeasure) .........27
15.12. Transmission of user data (RF60x_CustomCmd) ...................................................28
15.13. Functions for operation of sensors connected to FTDI-based USB.........................28
16. Examples ...........................................................................................................................29
17. Warranty policy...................................................................................................................30
18. Distributors.........................................................................................................................31
19. Annex 1. Sensors produced by RIFTEK.............................................................................32

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
4
1. Safety precautions
Use supply voltage and interfaces indicated in the sensor specifications.
In connection/disconnection of cables, the sensor power must be switched off.
Do not use sensors in locations close to powerful light sources.
To obtain stable results, wait about 20 minutes after sensor activation to
achieve uniform sensor warm-up.
2. Electromagnetic compatibility
The sensors have been developed for use in industry and meet the requirements
of the following standards:
EN 55022:2006 Information Technology Equipment. Radio disturbance cha-
racteristics. Limits and methods of measurement.
EN 61000-6-2:2005 Electromagnetic compatibility (EMC). Generic standards.
Immunity for industrial environments.
EN 61326-1:2006 Electrical Equipment for Measurement, Control, and Labor-
atory Use. EMC Requirements. General requirements.
3. Laser safety
The sensors make use of an c.w. 660 nm wavelength semiconductor laser. Max-
imum output power is 1 mW. The sensors belong to the 2 laser safety class. The follow-
ing warning label is placed on the laser body:
The following safety measures should be taken while operating the sensor:
Do not target laser beam to humans;
Do not disassemble the sensor;
Avoid staring into the laser beam.
4. General information
The sensors are intended for non-contact measuring and checking of position,
displacement, dimensions, surface profile, deformation, vibrations, sorting and sensing
of technological objects as well as for measuring levels of liquid and bulk materials.
The series includes 4 sensors with the measurement range, from 50 to 500 mm
and the base distance from 25 to 105 mm. Custom-ordered configurations are possible
with parameters different from those shown below.
5. Basic technical data
RF605-
25/50
45/100
65/250
105/500
Base distance X, мм
25
45
65
105
Measurement range, mm
50
100
250
500
Linearity, %
±0.1 of the range

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
5
Resolution, %
0.02 of the range
Temperature drift
0,02% of the range/0С
Max. sampling frequency, Hz
2000
Light source
red semiconductor laser, 660 nm wavelength
Output power, mW
≤0,95 mW
Laser safety Class
2(IEC60825-1)
Output
interface
digital
RS232 (max. 460,8 kbit/s) or RS485 (max. 460,8 kbit/s)
analog
4…20 mA ( 500 Ωload) or 0…10 V
Synchronization input
2,4 –5 V (CMOS, TTL)
Logic output
programmed functions, NPN: 100 mA max; 40 V max for output
Power supply, V
24 (9 …36)
Power consumption, W
1,5..2
Environment resistance
Enclosure rating
IP67 ( for sensors with cable connector only)
Vibration
20g/10…1000Hz, 6 hours, for each of XYZ axes
Shock
30 g / 6 ms
Operation tempera-
ture, °С
-10…+60
Permissible ambient
light, lx
7000
Relative humidity
35-85%
Storage temperature,
°С
-20…+70
Housing material
aluminum
Weight (without cable), gram
60
6. Example of item designation when ordering
RF605-X/D-SERIAL-ANALOG-IN-AL- СС(R)-M
Symbol
Description
X
Base distance (beginning of the range), mm
D
Measurement range, mm
SERIAL
Type of serial interface: RS232 - 232, or RS485 - 485
ANALOG
Attribute showing the presence of 4…20 mA ( I ) or 0…10V ( U )
IN
Trigger input (input of synchronization) presence
AL
Programmed signal, which has triple purpose. It can be used as
1) logical output (индикация наличия объекта в рабочем диапазоне);
2) line of mutual synchronization of two and more sensors
3) line of hardware zero setting
CC(R)
Cable gland - CG, or cable connector - CC (Binder 702, IP67)
Note 1: R option –robot cable
М
Cable length, m
Example. RF605-105/500-232-I-IN-СG-3 –base distance –105 mm, range –500 mm, RS232 serial port,
4…20mA analog output, trigger input is available, cable gland, 3 m cable length.
7. Structure and operating principle
Operation of the sensors is based on the principle of optical triangulation (Figure
1.). Radiation of a semiconductor laser 1 is focused by a lens 2 onto an object 6. Radia-
tion reflected by the object is collected by a lens 3 onto a linear CMOS array 4. A signal
processor 5 calculates the distance to the object from the position of the light spot on the
array 4.

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
6
WORKING RANGEBASE DISTANCE
Figure 1
8. Dimensions and mounting
8.1. Overall and mounting dimensions
Overall and mounting dimensions of the sensor are shown in Figure 2 and 3.
Sensor package is made of anodized aluminum. The front panel of the package has
output window: The package also contains mounting holes.
Sensors are equipped by cable gland or connector.
Figure 2. Sensor with connector

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
7
Figure 3. Sensor with cable gland
8.2. Overall demands for mounting
The sensor is positioned so that of object under control should place in this work-
ing range. In addition, no foreign objects should be allowed to stay on the path of the in-
cident and reflected laser radiation.
Where objects to be controlled have intricate shapes and textures, the incidence
of mirror component of the reflected radiation to the receiving window should be mini-
mized.
9. Connection
9.1. Designation of connector contacts
View from the side of connector contacts used in the sensor is shown in the fol-
lowing figures.
Binder 702 Series, #09-0427-80-08
71
2
3
4
8
6
5
Designation of contacts is given in the following tables:

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
8
Connector
Model of the sensor
Pin number
Assignment
(232-U/I-IN-AL
1
2
3
4
5
6
7
8
IN
Gnd (power supply)
TXD
RXD
Gnd (common for signals)
AL
U/I
Power supply U+
485-U/I-IN-AL
1
2
3
4
5
6
7
8
IN
Gnd (power supply)
DATA+
DATA-
Gnd (common for signals)
AL
U/I
Power supply U+
9.2. Cables
Designation of cable wires is given in the table below:
Model of the sen-
sor
Pin number
Assignment
Wire color
232-U/I-IN-AL
free lead
free lead
DB9
DB9
free lead
free lead
free lead
DB9
-
-
2
3
-
-
-
5
Power U+
Gnd (power supply)
TXD
RXD
U/I
IN
AL
Gnd (Общий для сигналов)
Red
Brown
Green
Yellow
Blue
White
Pink
Grey
485-U/I-IN-AL
free leads
Power U+
Gnd (power supply)
DATA+
DATA-
U/I
IN
AL
Gnd (common for signals)
Red
Brown
Green
Yellow
Blue
White
Pink
Grey
10. Configuration parameters
The nature of operation of the sensor depends on its configuration parameters
(operation modes), which can be changed by transmission of commands through serial
port RS232 or RS485. The basic parameters are as follows:
10.1. Time limit for integration
Intensity of the reflected radiation depends on the surface characteristic of ob-
jects under control. Therefore, output power of the laser and the time of integration of
radiation incident onto the CMOS-array are automatically adjusted to achieve maximum
measurement accuracy.
Parameter "time limit for integration" specifies maximum allowable time of inte-
gration. If the radiation intensity received by the sensor is so small that no reasonable
result is obtained within the time of integration equal to the limiting value, the sensor
transmits a zero value.

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
9
Note 1. The measurement frequency depends on the integration time of the re-
ceiving array. Maximum frequency (2 kHz) is achieved for the integration time ≤106 μs
(minimum possible integration time is 10 μs). As the integration time increases above
106 μs, the result updating time increases proportionally.
Note 2. Increasing of this parameter expands the possibility of control of low-
reflecting (diffuse component) surfaces; at the same time this leads to reduction of mea-
surement frequency and increases the effects of exterior light (background) on the mea-
surement accuracy. Factory setting of the limiting time of integration is 3200 us.
Note 3. Decreasing of this parameter lets to increase measurement frequency,
but can decrease measurement accuracy.
10.2. Sampling mode
This parameter specifies one of the two result sampling options in the case
where the sensor works in the data stream mode:
Time Sampling;
Trigger Sampling.
With Time Sampling selected, the sensor automatically transmits the measure-
ment result via serial interface in accordance with selected time interval (sampling pe-
riod). With Trigger sampling is selected, the sensor transmits the measurement result
when external synchronization input (IN input of the sensor) is switched and taking the
division factor set into account.
10.3. Sampling period
If the Time Sampling mode is selected, the ‗sampling period‘ parameter deter-
mines the time interval in which the sensor will automatically transmit the measurement
result. The time interval value is set in increments of 0.01 ms. For example, for the pa-
rameter value equal to 100, data are transmitted through bit-serial interface with a period
of 0,01*100 = 1 ms.
If the Trigger Sampling mode is selected, the ‗sampling period‘ parameter de-
termines the division factor for the external synchronization input. For example, for the
parameter value equal to 100, data are transmitted through bit-serial interface when
each 100th synchronizing pulse arrives at IN input of the sensor.
Note 1. It should be noted that the ‗sampling mode‘ and ‗sampling period‘ para-
meters control only the transmission of data. The sensor operation algorithm is so built
that measurements are taken at a maximum possible rate determined by the integration
time period, the measurement results is sent to buffer and stored therein until a new re-
sult arrives. The above-mentioned parameters determine the method of the readout of
the result form the buffer.
Note 2. If the bit-serial interface is used to receive the result, the time required
for data transmission at selected data transmission rate should be taken into account in
the case where small sampling period intervals are used. If the transmission time ex-
ceeds the sampling period, it is this time that will determine the data transmission rate.
10.4. The point of zero
This parameter sets a zero point of absolute system of coordinates in any point
within the limits of a working range. You can set this point by corresponding command or
by connecting AL input to the ground line (this input must preliminarily be set to mode 3).
When the sensor is fabricated, the base distance is set with a certain uncertainty, and, if
necessary, it is possible to define the point zero more accurately.

Triangulation Laser Sensors, RF605 Series
RF605 [Revision 2.0] 10th January 2011 valid for sensors with serial numbers 11000 and higher
10
10.5. Line AL operation mode
This line can work in one of the four modes defined by the configuration parame-
ter value:
mode 1: indication of run-out beyond the range ("0" –object is beyond the
range (beyond the selected window in the range), "1" –object is within the
range (within the selected window in the range);
mode 2: mutual synchronization of two or more sensors;
mode 3: hardware zero-set line;
mode 4: hardware laser switch OFF/ONN
In the "Indication of run-out beyond the range" mode, logical ―1‖ occurs on the
AL line if an object under control is located within the working range of the sensor (within
the selected window in the range), and logical "0" occurs if the object is absent in the
working range (within the selected window). For example, in such mode this line can be
used for controlling an actuator (a relay) which is activated when the object is present
(absent) within the selected range (Fig.4.1).
The "Mutual synchronization‖mode makes it possible to synchronize measure-
ment times of two and more sensors. It is convenient to use this mode to control one ob-
ject with several sensors, e.g., in the measurement of thickness. On the hardware level,
synchronization of the sensor is effected by combining AL lines (Fig.4.2.).
In the "Hardware zero-set" mode connection AL input to the ground potential sets
beginning of coordinates into current point (Fig.4.3.).
In the "Hardware laser switch OFF/ONN' mode connection AL input to the
ground potential switch laser ON/OFF (Fig.4.3)
Out of the range indication
Mutual synchronization
Hardware zero-set/
Hardware laser ON/OFF
+24VDC
AL
RF605
100mA max
+24VDC
AL
RF605
RF605
AL
IN
IN
RF605
AL
Figure 4.1
Figure 4.2
Figure 4.3
10.6. Time lock of the result
If the sensor does not find out object or if the authentic result cannot be received,
zero value is transferred. The given parameter sets time during which is transferred the
last authentic result instead of zero value.
10.7. Method of results averaging
This parameter defines one of the two methods of averaging of measurement re-
sults implemented directly in the sensor:
Averaging over a number of results
Time averaging
When averaging over a number of results is selected, sliding average is calcu-
lated. When time averaging is selected, the results obtained are averaged over the
time interval chosen.