Baumer BA UNxK09 IO User Manual
Instruction Manual
UNCK 09G8914/IO
UNCK 09G8914/KS35A/IO
UNDK 09G8914/IO
UNDK 09G8914/KS35A/IO
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24.04.2012/haa Frauenfeld, Switzerland
Instruction Manual for UNxK 09 with IO Link
Content
1 General Information .....................................................................................................................3
1.1 About this Document ......................................................................................................................3
1.2 General Information........................................................................................................................3
2 IO Link Introduction .....................................................................................................................4
2.1 SIO Mode........................................................................................................................................4
2.2 IO Link Communication Mode ........................................................................................................4
2.3 IODD (IO Link Device Description).................................................................................................5
3 Sensor in the SIO Mode ...............................................................................................................5
4 Sensor in the IO Link Communication Mode.............................................................................5
4.1 Process Data..................................................................................................................................5
4.1.1 Process Data Structure...................................................................................................................5
4.2 Parameters and Commands...........................................................................................................6
4.2.1 Product Information ........................................................................................................................6
4.2.2 Parameters.....................................................................................................................................6
4.2.3 Commands .....................................................................................................................................6
4.2.4 Saving Modifications.......................................................................................................................6
5 Explanation of the Sensor Configuration ..................................................................................7
5.1 Teaching a User-Specific Measuring Range ..................................................................................7
5.1.1 Parameter.......................................................................................................................................7
5.1.2 Commands .....................................................................................................................................7
5.1.3 Description......................................................................................................................................7
5.1.4 Error handling.................................................................................................................................9
5.2 Teach-in of user specific switching points.....................................................................................10
5.2.1 Parameter.....................................................................................................................................10
5.2.2 Commands ...................................................................................................................................10
5.2.3 Description....................................................................................................................................10
5.2.4 Hysteresis.....................................................................................................................................13
5.2.5 Error handling...............................................................................................................................13
5.3 Averaging......................................................................................................................................13
5.3.1 Parameter.....................................................................................................................................13
5.3.2 Description....................................................................................................................................13
5.4 Temperature compensation..........................................................................................................14
5.4.1 Parameter.....................................................................................................................................14
5.4.2 Description....................................................................................................................................14
5.5 Locking/releasing of Teach-in button............................................................................................14
5.5.1 Parameter.....................................................................................................................................14
5.5.2 Description....................................................................................................................................14
6 Overview of SPDUs ....................................................................................................................15
6.1 Table of General Information SPDUs ...........................................................................................15
6.2 Table of Parameter SPDUs ..........................................................................................................15
6.3 Table of System Commands.........................................................................................................16
6.4 Table of error Codes.....................................................................................................................16
6.5 Table of Factory Settings..............................................................................................................17
7 Mounting......................................................................................................................................17
7.1 Mounting options and installation hints.........................................................................................17
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1 General Information
1.1 About this Document
These instructions contain information related to commissioning and communications with the Baumer
Series 14 photoelectric distance sensor equipped with the IO Link interface. They supplement the installation
instructions, already provided with each sensor.
These instructions apply to the following sensor versions:
UNCK 09G8914/IO
UNCK 09G8914/KS35A/IO
UNDK 09G8914/IO
UNDK 09G8914/KS35A/IO
1.2 General Information
Rules for proper
usage
This product is a precision measuring device which has been designed for the
detection of objects and parts. It generates and provides measured values issued
as electrical signals for following systems. Unless this product has not been
specifically marked it may not be used in hazardous areas.
Set-up
Installation, mounting and adjustment of this product may only be executed by
skilled employees.
Installation
Only mounting devices and accessories specifically provided for this product may
be used for installation. Unused outputs may not be connected. Unused strands
of hard-wired sensors must be isolated. Do not exceed the maximum permissible
bending radius of the cable. Before connecting the product electrically the system
must be powered down. Where screened cables are mandatory, they have to be
used in order to assure EMI protection. When assembling connectors and
screened cables at customer site the screen of the cable must be linked to the
connector housing via a large contact area.
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2 IO Link Introduction
In order to fully understand the various configuration options, these operating instructions describe the most
important aspects of the IO Link interface. More detailed information concerning IO Link, together with all
specifications, is available at www.IO-Link.com.
IO Link is a standard interface for sensors and actuators. Devices (sensors, actuators) are connected to an
IO Link master via point-to-point connections. Communications between the master and the device are
bidirectional, via the device switching line. This interface permits measuring values to be recorded. An option
to configure the sensor via the IO Link is also provided. There are two modes of sensor operation: the
standard input/output mode (SIO mode) and the IO Link communication mode.
The master switches the sensor to the IO Link communication mode. In this mode, process data
(measurement data) are now continuously transferred from the sensor to the master, while requirement data
(parameters, commands) are either written to the device or read from it.
2.1 SIO Mode
After start up, the sensor is automatically in the SIO mode. In this mode, the sensor operates as a standard
switching or measuring sensor. On the master side, the IO Link port is set as a normal digital input. The
sensor can be used like a standard sensor without IO Link. However, various functions can only be controlled
with the aid of IO Link.
2.2 IO Link Communication Mode
The sensor is switched to the “communication mode” by means of a so-called “wake up” signal sent by the
master. With this action, the master attempts to locate a connected device by means of a defined signal
transmitted along the switching line. If the sensor responds, communication parameters are exchanged, after
which the cyclic transmission of process data can begin.
The following can be performed in the IO Link communication mode:
Process data can be received;
Parameters (SPDUs) can be read from the sensor;
Parameters (SPDUs) can be written to the sensor;
Commands can be transmitted to the sensor (e.g., switching point teaching, resets to factory
settings, etc.).
The process data contain cyclic data such as measuring value; switch status or quality information which is
transferred to the higher level controller.
The master can exit the IO Link communication mode by using a “fall back”, after which the sensor once
again operates in the SIO mode until it receives the next “wake up”.
The sensor’s behavior in the SIO mode can be adjusted in the IO Link communication mode. This allows the
sensor to be easily adapted to the requirements of corresponding parameters, and to then continue
operating as a “normal” sensor, without the use of IO Link. Alternately, the sensor can also operate
continuously in the IO Link communication mode in order to fully utilize the entire functional scope provided
by the process data.
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2.3 IODD (IO Link Device Description)
The IODD describes the IO Link device, and can be downloaded at www.baumer.com. It comprises a set of
XML and PNG files. An engineering or diagnostic tool reads a sensor’s IODD in order to determine the
following:
- Identification (manufacturer, designation, part number, etc.);
- Communication characteristics (communication speed, frame type, etc.);
- Parameters and commands;
- Process data;
- Diagnostic data (events).
The IODD determines who is permitted to review and modify which sensor data. How the data are presented
and how they are manipulated is defined by the sensor manufacturer and is therefore independent of the
sensor itself.
3 Sensor in the SIO Mode
In the SIO mode, the sensor operates in accordance with its factory settings or according to the settings
defined by the user via IO Link. The functional scope in the SIO mode is sensor specific.
4 Sensor in the IO Link Communication Mode
4.1 Process Data
With the sensor in the IO Link communication mode, data are periodically exchanged between the IO Link
master and the device. These data comprise process data and possibly commands and parameters for the
sensor. Process data transfer the current measuring value and status bits such as the switch status, quality
information, etc. to the master. The master does not need to explicitly request these process data.
4.1.1 Process Data Structure
Figure 1 illustrates the structure of process data. The following provides a brief description of the individual
information.
Figure 1: Process data
4.1.1.1 Significance of the Measuring Value
The measuring value (Bit4…Bit15) has a range between 0…4095. The measuring value reflects the sensor’s
current measuring range. If the object being measured lies at the start of the measurement value range (e.g.,
30mm), a measuring value of 0 is output. If the object being measured lies at the end of the measurement
value range (e.g., 200mm) a measuring value of 4095 is output.
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4.1.1.2 Significance of the Status Information
Bit 0: Alarm
The alarm bit indicates whether an object lies within the measurement value range.
Bit0 = 0 → An object lies within the specified measuring range.
Bit0 = 1 → There is no object within the specified measuring range.
Bit 1: Switch bit
In the IO Link communication mode, the switch bit performs the function of a switching output.
Bit1 = 0 → There is no object within the switching range.
Bit1 = 1 → An object lies within the switching range.
Bit 2: Quality
This bit provides information about the quality of the sonic echo reflected by the object.
Bit2 = 0 → The amount of reflected sonic is OK.
Bit2 = 1 → The amount of reflected sonic is critical.
Bit3: Not used
4.2 Parameters and Commands
Parameters and commands are either written to the device or read from it using SPDU (Service Protocol
Data Unit) indices. The read and write function is provided by the IO Link master. The user can write a value
to an index, or can have a value read from it.
4.2.1 Product Information
Some parameters contain product information such as the manufacturer’s name, the product name and
number, together with a user-specific sensor designation (refer to Table 6, Table of General Information
SPDUs).
4.2.2 Parameters
For a description of parameters, refer to Table 6.2, Table of Parameter SPDUs.
4.2.3 Commands
Commands are written to SPDU Index 0x02 (system commands). Refer to Table 6.3 Table of System
Commands.
4.2.4 Saving Modifications
Modification of parameters either by direct overwriting or by a command don’t have to be saved explicitly.
They remain automatically valid also after a restart.
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