Baumer PosCon OXH7 User Manual
Operating instructions.
PosCon OXH7 – smart height
measurement.
Contents
1
1.1
1.1
1.1
2
2.1
2.1
2.2
2.3
2.4
2.5
3
3.1
3.2
3.3
3.4
4
4.1
4.2
4.3
General information ...................................................................................................................... 3
Concerning the contents of this document ..................................................................................... 3
Intended use ................................................................................................................................... 3
Safety instructions .......................................................................................................................... 4
Mounting and connections .......................................................................................................... 5
Dimensions ..................................................................................................................................... 5
Sensor reference levels .................................................................................................................. 6
Definition of the field of view ........................................................................................................... 7
Mounting ....................................................................................................................................... 11
Alignment ...................................................................................................................................... 14
Connection and commissioning .................................................................................................... 16
Configuration via the web interface .......................................................................................... 21
The web interface ......................................................................................................................... 21
Monitoring ..................................................................................................................................... 23
Parametrization ............................................................................................................................. 27
Device Configuration .................................................................................................................... 50
Communication via the process interfaces ............................................................................. 52
Introduction ................................................................................................................................... 52
Modbus TCP ................................................................................................................................. 53
OPC UA ........................................................................................................................................ 73
5
5.1
5.2
5.3
5.4
5.5
5.6
6
6.1
6.2
6.3
6.4
6.5
7
8
Operation ..................................................................................................................................... 86
Status displays on the sensor ....................................................................................................... 86
Measuring frequency, measuring repeat time, and response time ............................................... 87
Alarm output.................................................................................................................................. 87
Object to be measured ................................................................................................................. 88
Memory ......................................................................................................................................... 89
Error correction and tips ............................................................................................................... 90
Safety instructions and maintenance ....................................................................................... 91
General safety instructions ........................................................................................................... 91
Sensor inscriptions ....................................................................................................................... 92
Front optic ..................................................................................................................................... 93
Cleaning the sensors .................................................................................................................... 93
Disposal ........................................................................................................................................ 93
Sensor data sheet ....................................................................................................................... 94
Revision history .......................................................................................................................... 97
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1 General information
1.1 Concerning the contents of this document
This manual contains information about the installation and commissioning of Baumer PosCon OXH7 sensors
with TCP/IP interface.
It is a supplement to the mounting instructions supplied with each sensor.
1.1 Intended use
The Baumer PosCon OXH7 sensor measures heights of objects. It was especially developed for easy
handling, flexible use, and precise measurement.
1.1.1 Functional principle of triangulation
Read these operating instructions carefully and follow the safety instructions!
The sensor works on the laser triangulation principle.
By means of special optics, a laser beam is enlarged
into a line and projected to the surface of the object to
be measured. Using the multi-lens system, the
reflected light from this laser line is projected onto a
matrix. From this matrix image, a controller calculates
the distance to every individual measuring point.
The measuring value is calculated in accordance with
the selected function. Thanks to the new Baumer
technology, the object height is always output
correctly, independent of the object's position in the
measuring field.
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1.1 Safety instructions
NOTE
Provides helpful operation instructions or other general recommendations.
ATTENTION!
Indicates a potentially hazardous situation. Avoid these situations in order to
prevent any personal injury or damage to the device.
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2 Mounting and connections
5
5
ATTENTION!
Connection, installation, and commissioning may only be performed by qualified
personnel. Protect optical surfaces from moisture and dirt.
2.1 Dimensions
26
LED
9
4,3
7485645
*Optical axis
50
7 9
4,5 2
M12 x 1
19
14
M12 x 1
21
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19 mm
2.1 Sensor reference levels
To ensure that the sensor is easy to align during installation, reference levels have been defined. The laser
beam of the sensor runs parallel (//) to level R3 and is at a right angle to levels R1 and R2. Levels R1, R2, and
R3 serve as a reference for sensor alignment during installation. The "Left" and "Right" alignment must also
be observed.
13 mm
Left
Right
Laser
beam
Level R3
Level R2
Level R1
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2.2 Definition of the field of view
The maximum field of view and additional important field of view definitions are described in the following
diagram. The important terms "left" and "right" are to be regarded respectively from the viewpoint of the
connector side of the sensor.
Left
Right
Blind region
Start of measuring range Sdc
Field of
view
Z
X
Width of
field of view
left
Reference point
HEIGHT function
0 mm
Field of view width
Width of field
of view right
R2
End of measuring
range Sde
The sensor measures the height of objects within the field of view.
Sde or the optionally teached reference level (if Flex Mount is activated) is used as the
reference surface.
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2.2.1 Blind region
The region from the sensor level R2 up to the start of measuring range Sdc is called the blind region, i.e., the
sensor cannot detect any objects there.
If there are any objects in this region, this can lead to incorrect measurement values.
R2
Object
Blind region
Start of measuring range Sdc
Field of view
range
Measuring
End of measuring range Sde
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2.2.2 Transmitter and receiver axis
The transmitter and receiver axes must not be covered by obstacles, since this could adversely affect precise
measurements.
Transmitter axis
Laser beam
Receiver axis:
Prohibited area for
obstacles
Measuring range Mr
Start of measuring
range Sdc
End of measuring
range Sde
19 mm
L1
L2
13 mm
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2.2.3 Precise laser alignment with qTarget
The field of view is aligned with the housing reference surfaces at the factory. The beam position in every
sensor is in exactly the same spot, which makes planning and sensor replacement very easy.
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2.3 Mounting
The sensor has four mounting holes for flexible alignment and mounting. The use of 2 M4x35 screws is
recommended for mounting. The tightening torque is max. 1.2 Nm.
Tightening torque
max. = 1.2 Nm
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2.3.1 Installation accessories
To ensure optimal mounting, various mounting brackets are available as an accessory. These brackets fit the
mounting holes of the sensor exactly. The sensor can be shifted and adjusted inside the mounting hole.
Mounting kit for standard installation Order no. 11120705
2.3.1.1
With the mounting bracket for standard installation, the sensor can be mounted quickly and easily at a 90°
angle to the reference surface.
Mounting kit 11120705
Contents of this set:
- 90° mounting bracket
- Threaded plate
- 2x spherical head screw M4x35 Torx
- 1x Torx tool T20
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Mounting kit for ±30° angled installation with horizontal mounting Order no. 11126836
2.3.1.2
If it is not possible to position the sensor at right angles to the reference surface, the sensor can be mounted
at an inclination angle of ±30° with this mounting kit.
Mounting kit 11126836
Contents of this set:
- 30° mounting bracket, horizontal
- Threaded plate
- 2x spherical head screw M4x35 Torx
- 1x Torx tool T20
Mounting kit for ±30° angled installation with horizontal mounting Order no. 11126837
2.3.1.3
If it is not possible to position the sensor at right angles to the reference surface, the sensor can be mounted
at an inclination angle of ±30° with this mounting kit.
Mounting kit 11126837
Contents of this set:
- 30° mounting bracket, vertical
- Threaded plate
- 2x spherical head screw M4x35 Torx
- 1x Torx tool T20
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Reference surface
2.4 Alignment
To achieve as reliable and exact measurement values as possible, the following hints and tips for mounting
should be followed.
2.4.1 The reference surface
If the height of the object is to be measured from a specific surface or if the sensor is to be mounted at an
angle of up to ±30°, then the reference surface must be teached using the Flex Mount function.
The following points must be satisfied for teaching the reference surface:
• The reference surface must be within the measuring range of the sensor (Sdc-Sde)
• The sensor may be inclined at a maximum angle of ±30° to the reference surface
• The "maximum unevenness of the reference surface"1 must not exceed the maximum value
• The length of the reference surface must not be less than the "minimum reference surface length"1
value
Angle
(here = 0°)
NOTE
The reference surface…
• should be as even as possible
• should cover the entire measuring range (width) if possible
• can be teached in using the Flex Mount function
Object
Min. reference
surface length
1
In accordance with chapter Sensor data sheet
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2.4.2 Angled installation (Flex Mount)
The sensor can be installed at an inclination of up to ±30° to the reference surface for the height function. This
is particularly useful when space conditions do not allow any other installation option. See chapter Flex Mount.
After activation of Flex Mount, the sensor axis is no longer relevant. The measurement coordinate system is
now represented by the M and K axes. The height is now measured in the M direction.
0 … -30° +30 … 0°
M
K
Reference surface
Reference point with inclined installation
2.4.2.1
In the case of angled installation, the reference point (0 mm) of the K axis shifts out of the center of the field of
view or the red visible laser line. Due to inclination of the sensor, the two field of view sections, "Width of field
of view left" and "Width of field of view right", are no longer equal in size.
NOTE
This fact is relevant where the position of the
reference point plays a role, e.g., with the Field of
View function. Left Limit and Right Limit are
measured from this point.
M
K
Long
Reference point
Short
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2.5 Connection and commissioning
ATTENTION!
Only carry out wiring work when the device is de-energized.
Incorrect supply voltage will destroy the device!
ATTENTION!
Connection, installation, and commissioning may only be performed by qualified
personnel.
ATTENTION!
The IP protection class is valid only if all connections are connected as
described in the technical documentation.
ATTENTION!
Laser class 1 laser beam according to EN 60825-1:2007. This product can be
operated safely without any additional safety precautions. Nevertheless, direct
contact between the eye and beam should be avoided.
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2.5.1 Pin assignments and connection diagrams
Color Function
Description
Color Function
Description
M12 8
-
pin M12 4
-
pin
M12 8-pin M12 4-pin
5
6
4
8
3
4
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
7
1
(2)
BN
Z Z
(3)
GN
(4)
power
supply
pushpull
WH = white n.c. Not used
BN = brown +Vs Voltage supply (+15…+28 VDC)
GN = green n.c. Not used
YE = yellow out Switching output, push-pull
GY = gray alarm Alarm output, push-pull
PK = pink n.c. Not used
BU = blue 0V Ground GND
RD = red sync in Synchronization input
YE
GY
WH
PK
RD
BU
(5)
(6)
(8)
(7)
(1)
Z Z
3
2
+Vs
n.c.
out
alarm
n.c.
n.c.
sync in
0V
Pin 1
Pin 2
Pin 3
Pin 4
2
1
BU (2)
OG (4)
Ethernet
WH (1)
YE (3)
WH = white Tx+ TX+ (BI_DA+)
BU = blue Rx+ RX+ (BI_DB+)
YE = yellow Tx- TX- (BI_DA-)
OG = orange Rx- RX- (BI_DB-)
Rx+
Rx-
Tx+
Tx-
NOTE
We recommend that you connect unused cables to GND (0V).
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2.5.2 Connection cables as accessories
M12 8-pin
2.5.2.1
An 8-pin, shielded connection cable (connector) is required to supply the digital inputs/outputs with power.
Baumer connection cables with the following order codes are recommended:
• 10127844 ESG 34FH0200G (M12 8-pin; length 2 m, straight plug)
• 11053961 ESW 33FH0200G (M12 8-pin; length 2 m, angled plug)
• 10129333 ESG 34FH1000G (M12 8-pin; length 10 m, straight plug)
• 10170054 ESW 33FH1000G (M12 8-pin; length 10 m, angled plug)
Other cable lengths are available.
M12 4-pin
2.5.2.2
A 4-pin, shielded cable is used to transmit the Ethernet signals.
Baumer connection cables with the following order codes are recommended:
• 11048502 KSG 34A/KSG45AP0200G/E (M12 4-pin to RJ45, length 2 m, straight plug)
• 10165276 KSG 34A/KSG45AP0500G/E (M12 4-pin to RJ45, length 5 m, straight plug)
• 11051929 KSG 34A/KSG45AP1000G/E (M12 4-pin to RJ45, length 10 m, straight plug)
Other cable lengths are available.
Color Function
Pin 1 WH = white Tx+
Pin 2 BU = blue Rx+
Pin 3 YE = yellow TxPin 4 OG = orange Rx-
Pin 1 white/orange TX+ (BI_DA+)
Pin 2 orange TX- (BI_DA-)
Pin 3 white/green RX+ (BI_DB+)
Pin 4 blue n.c.
Pin 5 white/blue n.c.
Pin 6 green RX- (BI_DB-)
Pin 7 white/brown n.c.
Pin 8 brown n.c.
Color Function
3
2
4
1
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1
8
2.5.3 Initial setup of the Ethernet interface on the computer
Assigning an IP address
2.5.3.1
To use the device in your network, you must assign a unique IP address to the device.
1. If you have a DHCP server integrated into your network, the IP address is requested from this server.
No additional manual actions are necessary on your part.
2. If a valid IP address cannot be obtained within 15 seconds, the static IP address is used. When the
device is delivered, this is IP address 192.168.0.250 (subnet mask: 255.255.255.0).
NOTE
To avoid network malfunctions, ensure that each IP address is unique within the network
and has not already been assigned.
Now, link your PC into the same network as the device. If your network does not have a DHCP server, you
may have to adapt the IP address of your PC. With Microsoft® Windows® 7, proceed as follows:
1. Open: Start menu
→ Control Panel → Network and Internet (View network status and tasks) →
Change adapter settings
2. Select your network (e.g., "Local Area Connection") and then the "Properties" entry in the context
menu.
3. Select the "Internet Protocol Version 4 (TCP/IPv4)" entry in the list of elements and then click the
Properties button below the selection list. The following dialog box opens:
Activate the Use the following IP address option and select an address in the range 192.168.0.1-
192.168.0.254 that has not yet been used for the IP address. Enter 255.255.255.0 for the subnet mask
and confirm these settings.
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Identifying an unknown sensor IP address
2.5.3.2
If you do not know the IP address of the sensor, either because it was assigned via DHCP or the information
about the static IP address is no longer available, you can query the IP address in the following way:
1. Open a Windows prompt
2. Execute the command ping OXH7-[identifier].local. Replace [identifier] either with
the eight-digit order number or the MAC address indicated on the sensor. Example: ping OXH7-
12345678.local or ping OXH7-11-22-33-44-55-66.local
3. Read the IP address (here: 192.168.0.250) from the command output:
Ping is executed for OXH7-12345678.local [192.168.0.250] with 32 bytes of
data:
If you do not gain access to the sensor when you specify this IP address, change the IP configuration of your
PC as follows:
1. Enter an IP address that comes either directly before or after the sensor IP address.
2. Enter 255.255.255.0 as the subnet mask.
3. Confirm the setting.
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3 Configuration via the web interface
3.1 The web interface
The device includes an integrated web server which makes available a graphical user interface (GUI). This
enables configuration and evaluation of the data (e.g., of machine control) directly via the browser.
3.1.1 Supported browsers
Due to differences in browser technology, there may be some differences in appearance between browsers
and browser versions or even incompatibilities with the device. In our experience, these incompatibilities
increase with the age of the browser due to a lack of standardization. We cannot test all browsers and their
various releases, so untested browsers may also function with the device.
Supported browsers are Firefox 59 and Chrome 65.
3.1.2 Connecting to the web interface
1. Launch a supported browser
2. Enter the IP address of the sensor in the address line
NOTE
The default IP address is 192.168.0.250
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3.1.3 Web interface overview
1. Sensor IP address
2. Commercial name of detected sensor
3. Selection of active parameter setup that is stored in the sensor
4. Setting the configuration or monitoring options
5. Selection of measurement mode
6. Output of measurement value and signal quality over time
7. Overview of active parameters
8. Status of alarm and switching output. Alarm: Red = Active; switching output: Yellow = Active
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3.2 Monitoring
Output and evaluation of measurement values.
3.2.1 Measurement mode
The measurement mode is selected here to define which values are displayed in the "Result over Time"
diagram. The mode that is currently selected is indicated by a blue line.
The yellow icon indicates the active measurement value of the switching output.
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Avg HEIGHT
Reference
Reference
Reference
Reference
Average height of the object from the reference
surface.
Min HEIGHT
Minimum height of the object from the reference
surface.
Max HEIGHT
Maximum height of the object from the reference
surface.
Delta HEIGHT
Maximum height of the object minus minimum height.
No need to teach the reference surface.
Standard deviation
The standard deviation is a term from the field of statistics or stochastics and is given in σ (sigma). With the
standard deviation it is possible to determine how great the dispersion of values around a mean value is.
Broadly speaking, the standard deviation is the average distance of all measured expressions of a
characteristic from the mean value.
The standard deviation is only useful if you consider measurement values which should actually be identical
but which vary. For the sensor, this means that an even surface is observed vertically (or with active Flex
Mount). The standard deviation is then a measure for the unevenness of the surface. All measuring points
within the preset field of view are taken into consideration.
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Remember
• The standard deviation is a measure for the dispersion of the height values of all measured profile
points in mm.
• It can only be used on a plane that is either vertical with respect to the sensor or is parallel to the Flex
Mount reference.
• The plane must cover the entire field of view in the X direction.
Example
This is a profile of 190 points on an even surface as recorded by the sensor before evaluation (height in mm).
It is a typical line.
The red line represents the mean value, and the green lines each represent 1x standard deviation. The
standard deviation indicates how level the measured line is.
6.6
6.55
6.5
6.45
6.4
6.35
6.3
6.25
6.2
6.15
6.1
1
7
13
19253137434955
Standard deviation: 0.03 mm
Max.–min. = 0.157 mm
61677379859197
103
109
115
121
127
133
139
145
151
157
163
169
175
181
187
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3.2.2 Result over time
Measurement values
3.2.2.1
The diagram displays the measurement values (blue) within the adjustable "timeframe". The gray background
and gray line display the switching output window and switching point respectively.
Signal quality/switching output
3.2.2.2
The colored bar underneath the diagram displays either the signal quality or the switching output. This can be
set by the user via the button.
Signal quality
Green: Valid signal
Yellow: Weak signal
Red: No signal (no valid measurement value)
Switching output
Yellow: Switching output is active/high
Gray: Switching point is inactive/low
Save/Pause
3.2.2.3
Activating "Pause" freezes the diagram. During "Pause", you can click the disk icon to save the displayed
measurement values to the PC in .csv format.
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3.3 Parametrization
All application-specific settings are made here.
1- Result over time
2- Profile
3- Active parameter adjustment
4- Drag & drop lines
5- Selection Result over time & Profile or Result over time & Camera picture
3.3.1 Result over time & profile
Result over time
3.3.1.1
As in Monitoring mode, the diagram displays the measurement values (blue) within the adjustable
"timeframe". The gray background and gray line display the switching output window and switching point
respectively. The colored bar underneath the diagram displays the signal quality or the switching output.
Green: vaild signal
Yellow: low signal
Red: no signal (No valid measurement value)
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Here, the switching output can be adjusted using the yellow lines; these changes take effect immediately. With
the tools on the right side the displayed diagram can be saved or analyzed.
Profile
3.3.1.2
The diagram displays the profile points of the object. The field of view is shown in gray. Here, the field of view
can be restricted using the yellow lines; these changes take effect immediately.
Camera picture
3.3.1.3
Output of the unfiltered camera image. For example, unwanted reflections can be detected and the alignment
can be optimized.
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3.3.2 Active parameters
Data Acquisition
3.3.2.1
3.3.2.1.1 .3.2.1.1isi t
To improve sensitivity to dark objects, the exposure time can be increased. This also changes the measuring
repeat time.
Light object: Short exposure time for light, shiny, and reflective surfaces such as metal or white objects, for
example.
Dark object: Longer exposure time and therefore slower measuring frequencies for plastics or black materials,
for example.
3.3.2.1.2 Trigger mode
For setting the measuring intervals.
Free running
Measurement with the max. possible frequency, which may vary depending on the application. The sensor
measures continuously.
Interval
Measurement cycle with fixed internal interval (time in ms). The constant measuring frequencies that can be
achieved are slower than the non-constant frequencies in free-running mode. The interval must be set
accordingly.
NOTE
Sometimes, shiny surfaces may require a longer exposure time.
NOTE
- If Sync-In (pin 8) is connected, free-running mode (or interval mode) runs when Sync-In is set to low
- If Sync-In is not connected, free-running mode (or interval mode) runs continuously
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Sync
-
In Level
Measurement
NOTE
Single shot
A single measurement is triggered with the falling edge of an external trigger signal at the Sync-In. This
measurement value is held at the outputs until the next falling edge. The measuring frequencies that can be
achieved are only half as high as in free-running mode.
Sync-In
The measurement and signal output can be interrupted with the Sync-In input by connecting with high. As long
as Sync-In is on high, the sensor delays the next measurement (hold) and reduces the power of the laser
beam.
• The sensor checks Sync-In before every measurement
• The previous measurement cycle is always completed first, even if Sync-In is on high
• During the waiting time (Hold), the power of the laser beam is reduced
• While Hold is at high, all outputs are frozen at their last state
• To return the sensor to measurement mode, Sync-In must be set from high to low
• Sync-In must remain on low for at least 5 µs in order for the sensor to begin measuring again
Sync-In low 0…2.5 V Run
Sync-In high 8 V…UB (operating voltage) Hold
Application example: Reciprocal influence
Only the laser beam of Sensor 1 may be in the field of view of Sensor 1. The laser of Sensor 2 must not
influence Sensor 1.
If it is not possible to prevent several sensors from affecting each other through appropriate installation,
however, the sensors affecting each other can be operated asynchronously using the Sync-In cable. The
superordinate control generates the signals for this.
As soon as the Sync-In is set to high (Hold), all output functions are frozen at their
last state until the next measurement.
en_BA_OXH7_PosCon_TCP_IP.docx 30/98 Baumer Electric AG
Friday, June 15, 2018 12:44:11 PM/tof V1.0 ANW_81184815 Frauenfeld, Switzerland
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