WAGO 758-915, WAGO-I/O-SYSTEM 758 Series User Manual

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Manual

WAGO-I/O-SYSTEM 758

ETHERNET Gateway

Bluetooth®

758-915

Version 1.1.0, applicable from FW/HW Version 01/01

2 WAGO-I/O-SYSTEM 758 758-915 Bluetooth

ETHERNET Gateway

WAGO Kontakttechnik GmbH & Co. KG

Hansastraße 27 D-32423 Minden

Phone: +49 (0) 571/8 87 – 0 Fax: +49 (0) 571/8 87 – 1 69

E-Mail: info@wago.com

Web: http://www.wago.com

Technical Support

Phone: +49 (0) 571/8 87 – 5 55 Fax: +49 (0) 571/8 87 – 85 55

E-Mail: support@wago.com

Every conceivable measure has been taken to ensure the accuracy and completeness of this documentation. However, as errors can never be fully excluded, we always appreciate any information or suggestions for improving the documentation.

E-Mail: documentation@wago.com

We wish to point out that the software and hardware terms as well as the trademarks of companies used and/or mentioned in the present manual are generally protected by trademark or patent.

Manual Version 1.1.0, applicable from FW/HW Version 01/01

WAGO-I/O-SYSTEM 758 Table of Contents 3 758-915 Bluetooth

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1 Notes about this Documentation ................................................................. 5

1.1 Validity of this Documentation ................................................................. 5

1.2 Revision History ........................................................................................ 5

1.3 Copyright ................................................................................................... 5

1.4 Symbols ..................................................................................................... 6

1.5 Number Notation ....................................................................................... 8

1.6 Font Conventions ...................................................................................... 8

2 Important Notes ........................................................................................... 9

2.1 Legal Bases ............................................................................................... 9

2.1.1 Subject to Changes ............................................................................... 9

2.1.2 Personnel Qualification ........................................................................ 9

2.1.3 Use in Compliance with Underlying Provisions .................................. 9

2.2 Special Use Conditions for ETHERNET Devices .................................. 10

2.3 Technical Condition of Specified Devices .............................................. 10

2.4 Storage, Assembly and Transport ........................................................... 10

2.5 Safety Advice (Precautions) .................................................................... 11

3 Device Description ..................................................................................... 13

3.1 View ........................................................................................................ 14

3.2 Labeling ................................................................................................... 15

3.3 Connectors ............................................................................................... 16

3.3.1 Pin Assignment for Power Supply ..................................................... 16

3.3.2 Pin Assignment for System Connection ............................................. 16

3.3.3 Antenna............................................................................................... 17

3.4 Display Elements .................................................................................... 19

3.5 Operating Elements ................................................................................. 20

3.6 Technical Data ........................................................................................ 21

3.6.1 Device Data ........................................................................................ 21

3.6.2 ETHERNET Interface ........................................................................ 22

3.6.3 Bluetooth® Interface ........................................................................... 22

3.6.4 Supply ................................................................................................. 22

3.7 Approvals ................................................................................................ 23

4 Mounting ..................................................................................................... 24

4.1 Selecting the Installation Location .......................................................... 24

4.2 Fixing ...................................................................................................... 26

5 Connect Devices ......................................................................................... 27

5.1 Connection .............................................................................................. 27

6 Commissioning ........................................................................................... 28

7 Configuration ............................................................................................. 29

7.1 Default settings ........................................................................................ 29

7.2 Configuration Using the Mode Membrane Button ................................. 30

7.2.1 Overview of Autoconfiguration Procedures ....................................... 30

7.2.2 Selection and Activation of an Autoconfiguration Procedure ............ 33

7.3 Configuration using the Web-based Management System (WBM) ....... 35

7.3.1 Accessing the Web-based Management System ................................ 35

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7.3.2 “Basic” – “Advanced” Modes ............................................................ 38

7.3.3 “System Overview” Section ............................................................... 39

7.3.4 “Network” Section.............................................................................. 41

7.3.5 “Bluetooth” Section ............................................................................ 43

7.3.5.1 Bluetooth: General ......................................................................... 43

7.3.5.2 Bluetooth: Security ........................................................................ 44

7.3.5.3 Bluetooth: Roaming ....................................................................... 44

7.3.5.4 Bluetooth: WLAN Coexistence ..................................................... 46

7.3.5.5 Bluetooth: Connection ................................................................... 47

7.3.6 “Miscellaneous” Section .................................................................... 49

7.3.6.1 Execution of AT Commands ......................................................... 50

8 Appendix ..................................................................................................... 52

8.1 Sample Configurations ............................................................................ 52

8.1.1 Preparation .......................................................................................... 52

8.1.2 WEG-WEG Bridge ............................................................................. 52

8.1.2.1 Configuration of the 1st WEG Using the Mode Membrane

Button ............................................................................................ 53

8.1.2.2 Configuration of the 2nd WEG Using the Mode Membrane

Button ............................................................................................ 53

8.1.3 Roaming Among WEGs ..................................................................... 54

8.1.3.1 Common Configuration of WEGs ................................................. 55

8.1.3.2 Configuration of Access Point WEGs ........................................... 55

8.1.3.3 Configuration of a WEG with Changing Link Partners

(Roaming) ...................................................................................... 57

8.1.3.4 Roaming with Several Devices ...................................................... 57

8.1.4 One or More WEGs at a Generic Bluetooth® NAP ............................ 58

8.2 Time Response ........................................................................................ 59

8.2.1 Time response example: PROFINET ................................................. 59

8.3 Data Rate ................................................................................................. 60

8.4 Coexistence ............................................................................................. 60

8.4.1 Basics .................................................................................................. 60

8.4.2 Space-Division Multiplex (Adaptation of Transmitting Power) ........ 62

8.4.3 Frequency Multiplexing (Switching of Channels with AFH and

FHSS) ................................................................................................. 63

8.4.4 Low Emission ModeTM....................................................................... 65

8.5 Range in Open Field ................................................................................ 67

8.6 Data Security for Radio Transmission .................................................... 69

8.7 Health Considerations ............................................................................. 71

Glossary ................................................................................................................ 72

List of Figures ...................................................................................................... 76

List of Tables ........................................................................................................ 77

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WAGO-I/O-SYSTEM 758 Notes about this Documentation 5

Table 1: Revision History

Document

Device version

Revision Hardware

Firmware

1.0.0

1.0.1

Editorial changes.

1.1.0

Section “Device Description” > … > “Pin Assignment for

Editorial changes.

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1 Notes about this Documentation

Keep this documentation!

The operating instructions are part of the product and shall be kept for the entire lifetime of the product. They shall be transferred to each subsequent user of the product. Care must also be taken to ensure that any supplement to these instructions are included, if applicable.

1.1 Validity of this Documentation

This documentation is only applicable to the 758-915 (Bluetooth® ETHERNET Gateway) of the WAGO-I/O-SYSTEM 758 series.

The Bluetooth® ETHERNET Gateway shall only be installed and operated according to the instructions in this manual.

1.2 Revision History

version

1.3 Copyright

This Manual, including all figures and illustrations, is copyright-protected. Any further use of this Manual by third parties that violate pertinent copyright provisions is prohibited. Reproduction, translation, electronic and phototechnical filing/archiving (e.g., photocopying) as well as any amendments require the written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden, Germany. Non-observance will involve the right to assert damage claims.

System Connection”: Figure corrected.

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1.4 Symbols

Personal Injury!

Indicates a high-risk, imminently hazardous situation which, if not avoided, will result in death or serious injury.

Personal Injury Caused by Electric Current!

Indicates a high-risk, imminently hazardous situation which, if not avoided, will result in death or serious injury.

Personal Injury!

Indicates a moderate-risk, potentially hazardous situation which, if not avoided, could result in death or serious injury.

Personal Injury!

Indicates a low-risk, potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

Damage to Property!

Indicates a potentially hazardous situation which, if not avoided, may result in damage to property.

Damage to Property Caused by Electrostatic Discharge (ESD)!

Indicates a potentially hazardous situation which, if not avoided, may result in damage to property.

Important Note!

Indicates a potential malfunction which, if not avoided, however, will not result in damage to property.

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Additional Information:

Refers to additional information which is not an integral part of this documentation (e.g., the Internet).

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Table 2: Number notation

Number code

Example

Note

Decimal

100

Normal notation

Hexadecimal

0x64

C notation

Binary

'100' '0110.0100'

In quotation marks, nibble separated with dots (.)

Table 3: Font conventions

Font type

Indicates

italic

Names of paths and data files are marked in italic-type. e.g.: C:\Programme\WAGO-I/O-CHECK

Menu items are marked in bold letters. e.g.: Save

A greater-than sign between two names means the selection of a

e.g.: File > New

Input

Designation of input or optional fields are marked in bold letters, e.g.: Start of measurement range

“Value”

Input or selective values are marked in inverted commas. e.g.: Enter the value “4 mA” under Start of measurement range.

[Button]

Pushbuttons in dialog boxes are marked with bold letters in square

e.g.: [Input]

[Key]

Keys are marked with bold letters in square brackets. e.g.: [F5]

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1.5 Number Notation

1.6 Font Conventions

menu item from a menu.

brackets.

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2 Important Notes

This section includes an overall summary of the most important safety requirements and notes that are mentioned in each individual section. To protect your health and prevent damage to devices as well, it is imperative to read and carefully follow the safety guidelines.

2.1 Legal Bases

2.1.1 Subject to Changes

WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any alterations or modifications that serve to increase the efficiency of technical progress. WAGO Kontakttechnik GmbH & Co. KG owns all rights arising from the granting of patents or from the legal protection of utility patents. Third-party products are always mentioned without any reference to patent rights. Thus, the existence of such rights cannot be excluded.

2.1.2 Personnel Qualification

All sequences implemented on the device may only be carried out by electrical specialists with sufficient knowledge in installation and handling of electrical equipment. The electrical specialists must also be familiar with the current standards and guidelines valid for the device.

2.1.3 Use in Compliance with Underlying Provisions

The device is used for wireless transmission of ETHERNET data packets per IEEE 802.3. A radio link must be set up for this to another device, for example a second 758-915, that also supports the Bluetooth® PAN profile.

The device has been developed for use in an environment that meets the IP65 protection class criteria. This specifies dust-tightness and protection against water jets (nozzle) from any angle. Operation in hazardous areas is prohibited.

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2.2 Special Use Conditions for ETHERNET Devices

If not otherwise specified, ETHERNET devices are intended for use on local networks. Please note the following when using ETHERNET devices in your system:

• Do not connect control components and control networks to an open

network such as the Internet or an office network. WAGO recommends putting control components and control networks behind a firewall.

• Limit physical and electronic access to all automation components to

authorized personnel only.

• Change the default passwords before first use! This will reduce the risk of

unauthorized access to your system.

• Regularly change the passwords used! This will reduce the risk of

unauthorized access to your system.

• If remote access to control components and control networks is required,

use a Virtual Private Network (VPN).

• Regularly perform threat analyses. You can check whether the measures

taken meet your security requirements.

• Use “defense-in-depth” mechanisms in your system's security configuration

to restrict the access to and control of individual products and networks.

2.3 Technical Condition of Specified Devices

The devices to be supplied ex works are equipped with hardware and software configurations, which meet the individual application requirements. WAGO Kontakttechnik GmbH & Co. KG will be exempted from any liability in case of changes in hardware or software as well as to non-compliant usage of devices.

Please send your request for modified and new hardware or software configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

2.4 Storage, Assembly and Transport

Whenever possible, the components are to be stored in their original packaging. Likewise, the original packaging provides optimal protection during transport.

When assembling or repacking the components, the contacts must not be soiled or damaged. The components must be stored and transported in appropriate containers/packaging. Thereby, the ESD information is to be regarded.

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2.5 Safety Advice (Precautions)

For installing and operating purposes of the relevant device to your system the following safety precautions shall be observed:

Always use voltage sources with current limitation/safety extra-low voltage!

Only use power supply sources based on IEC/EN60950 Section 2.5 “Power sources with limited output” with the device. The output of the external power supply must be short-circuit protected. The output voltage of the external power supply shall not exceed 30 VDC.

Do not use device in hazardous environments!

The device is not designed for use in hazardous areas.

Maintenance/Repair only by authorized specialists!

The device contains no parts that can be serviced by users. Always have all service, reconfiguration, maintenance or repair work performed by specialists authorized by WAGO.

Do not work on components while energized!

All power sources to the device shall be switched off prior to performing any installation, repair or maintenance work.

Keep a distance of 20 cm to persons!

Install the device such that it is located at least 20 cm away from all persons during operation.

Replace defective or damaged devices!

Replace defective or damaged device (e.g., in the event of deformed contacts), since the long-term functionality of fieldbus station involved can no longer be ensured.

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Protect the components against materials having seeping and insulating properties!

The components are not resistant to materials having seeping and insulating properties such as: aerosols, silicones and triglycerides (found in some hand creams). If you cannot exclude that such materials will appear in the component environment, then install the components in an enclosure being resistant to the above-mentioned materials. Clean tools and materials are imperative for handling devices/modules.

Cleaning only with permitted materials!

Clean soiled contacts using oil-free compressed air or with ethyl alcohol and leather cloths.

Avoid electrostatic discharge!

The devices are equipped with electronic components that you may destroy by electrostatic discharge when you touch. Pay attention while handling the devices to good grounding of the environment (persons, job and packing).

Device uses radio waves!

Never use the device in areas where operation of radio equipment is prohibited.

Do not open the enclosure!

Never open the enclosure. Opening of the enclosure will nullify the guarantee, legal warranty and authorization for use.

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3 Device Description

The Bluetooth® ETHERNET gateway 758-915 (“WEG” – Wireless ETHERNET gateway) enables ETHERNET devices to be linked to a wireless Bluetooth® network, in which the data received via the ETHERNET interface is transmitted via Bluetooth®. In the other direction, data received at the Bluetooth® interface is transmitted via the ETHERNET interface. As data transmission of ETHERNET packets occurs with a transparent protocol on Layer 2 of the OSI reference model, this provides for easy integration of all Ethernet-based fieldbuses, such as MODBUS/TCP, ETHERNET/IP, PROFINET or PROFISAFE.

Together with a further Bluetooth® PAN profile compliant device with Ethernet capabilities, such as a further WEG or a Bluetooth® access point (AP), the WEG can also be used as a wireless substitute for ETHERNET cables. As a Bluetooth® Class 1 device with additional, special functions implemented which enhance coexistence, the WEG provides particularly robust, real-time-capable radio links over long distances without any adverse impact on other radio networks, such as WLAN (IEEE 802.11 b/g).

Bluetooth

between 2 WEGs

transmission

Network 1 Network 2

Figure 1: Bluetooth

transmission between 2 WEGs

An innovative operator control concept enables easy initiation of automatic configuration processes using a Mode membrane key on the device. This can be used to configure a substitute cable link between two WEGs in only a few seconds, without using additional aids or hardware / software.

In addition to operation using the Mode membrane key and the 7 LED status indicators, access to other status information and advanced device functions of the WEG is also possible via a Web-based management system (WBM).

The WEG supports the “Simple Network Management Protocol” (SNMP). Besides the object IDs (OIDs) for the RFC1213, the device also provides access to further device-specific parameters. A corresponding description file for the “Management Information Base” (MIB) is available from WAGO Support.

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Table 4: Legend for the “View” figure

No.

Description

Details see Section:

Status and diagnosis LEDs (front)

“Display Elements”

Internal circular polarized directional antenna 5 dB

“Connectors”

Fixing hole 1

“Mounting”

LEDs for link quality indication (bottom), configuration and status indication

“Display Elements” 5

Mode membrane key for configuration

“Operating Elements”

Network connection, M12 socket on device

“Connectors”

Power supply, M12 connector on device

“Connectors”

Fixing hole 2

“Mounting”

758-915 Bluetooth

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3.1 View

Figure 2: View

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WAGO-I/O-SYSTEM 758 Device Description 15 758-915 Bluetooth

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3.2 Labeling

The status indicators for (POWER, (((.))), LAN) are marked on the front of the device.

Figure 3: Marking on front of device

The connections (Power, LAN), link quality and configuration button (Mode) are marked on the bottom of the device.

Figure 4: Marking on bottom

The device MAC address is included with other device data on the nameplate on the back or side of the device.

Figure 5: Nameplate on back/side

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Table 5: Legend for the “Connections at bottom of device” figure

No.

Description

Power supply and trigger input (“Power”)

Network connection (“LAN”)

Table 6: Power supply, M12 Connector on Device

Pin assignment

Vin + (9 V … 30 VDC)

Trigger input ground

Vin Ground (0 V)

Trigger-input + (9 V … 30 VDC)

Not in use

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3.3 Connectors

The device is equipped with two connections at the bottom:

Figure 6: Connections at bottom of device

3.3.1 Pin Assignment for Power Supply

Power is supplied to the device via a 5-pole, A-coded M12 connector.

The trigger input reacts to rising flanks and can be used for setting up and terminating radio links (see Section “Configuration using the Mode membrane button” / “Configuration via the Web-based Management System (WBM)”).

3.3.2 Pin Assignment for System Connection

The device is connected to the ETHERNET network via a 4-pole, D-coded socket and supports autonegotiation for 10/100 Mbit and the duplex mode.

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Table 7: System connection, M12 Socket on Device

Pin assignment

Transmit +

Receive +

Transmit -

Receive -

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3.3.3 Antenna

The device is equipped with an antenna. Good reception conditions exist when the front of the device is oriented centered to the remote device with which the radio link is to be established.

Figure 7: Aligning the device

As the device comes equipped with a circular polarized antenna, rotation of the device around the link axis between the local and remote device does not have any adverse impact on link quality.

The directional alignment (antenna) diagrams for the antenna are given in the following figures for a frequency of 2.450 GHz.

The horizontal diagram illustrates the two-dimensional top view of the electromagnetic field of the antenna, with the antenna being the center point. At a beam angle of around 60° the antenna provides excellent reception levels; reception continues to be good up to an angle of 90°, whereas reception markedly deteriorates at beam angles of 110° and greater.

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Figure 8: Antenna diagram – Horizontal 2.450GHz

The vertical antenna diagram shows the side view of the antenna's electromagnetic field.

Figure 9: Antenna diagram – Vertical 2.450GHz

The alignment characteristic for the internal antenna is primarily relevant for links in the open field and over long distances. When operating the device at short distances, inside buildings or without line-of-sight links structural conditions are the decisive factor for good reception.

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WAGO-I/O-SYSTEM 758 Device Description 19

Table 8: Legend for the “Display elements” figure

Nr.

Designation

Color

Status

Meaning

Device ready for operation

Off

Device not ready for operation

Blue

Bluetooth® link active

Blue flashing

Data transmission

Purple

Setting up link to other Bluetooth® device

Red

Error

Off

No Bluetooth® link available

ETHERNET link available

Blinking

ETHERNET communication active

Off

No ETHERNET link available

A on

Acceptable link quality

A+B on

Good link quality

A+B+C on

Optimal link quality

A+B+C+D on

Excellent link quality

Off

No Bluetooth® link available

Status signals are also indicated via LEDs A to D during configuration. In this case, the indicators

membrane button”.

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3.4 Display Elements

The current device status is indicated by the three LEDs on the front of the WEG.

Four other LEDs at the bottom of the device indicate the link quality, or the selected autoconfiguration procedure.

Figure 10: Display elements

Power

green

blue

((( . )))

purple red

LAN

Link

Quality*

will differ from the status information given here, see Section “Configuration using the Mode

yellow

green

Observe the operating mode!

The indicators for (((.))) and LAN are only valid when the power LED signals “Device ready for operation”. In special modes, such as device initialization or firmware update, the LEDs mentioned previously may respond differently than described above.

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Table 5: Legend for the “Operating element” figure

No.

Description

Mode membrane button

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3.5 Operating Elements

The “Mode” membrane button is located at the bottom of the device. This button is used to initiate certain autoconfiguration procedures. LEDs A to D indicate which procedure is active. For more information about this refer to the Section “Configuration using the Mode membrane button”.

Figure 11: Operating element

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Table 9: Technical Data – Device Data

Function

Bluetooth® ETHERNET Gateway

Dimensions (mm) W x H x D

66 x 91 x 36

Weight

120 g

Ports

Power connector: M12 plug, A-coded

ETHERNET connector: M12 socket, D-coded

Operating temperature

-30 °C ... + 65 °C

Storage temperature

-40 °C ... + 85 °C

Degree of protection

IP65

Relative humidity (without condensation)

95 % Connection to PE

not required

Fitting position

On a level mounting surface

Free from silicone

Yes

RoHS-compliant

Yes

Configuration

Via Web-based Management System or using the Mode membrane button

Immunity to interference

Static discharge based on EN 61000-4-2:

Air discharge ± 8 kV

Electromagnetic fields based on IEC61000-4-3: 10 V/m, Criterion A

Mains borne disturbance based on IEC 61000-4-6: 10 V RMS, Criterion A

Rapid transients (burst) based on IEC 61000-4-4:

Power supply: 2 kV

Surge voltage based on IEC 61000-4-5:

Power supply: ± 0.5 kV

Emission of interference

per EN 55022 Class B (residential areas)

Mechanical stability

Schock test based on IEC 60068-2-27

Storage/Transport 50 g, duration 11 ms

Vibration test based on IEC 60068-2-6 Operation 5 g, 10-150 Hz, Criterion 3

Free fall based on IEC 60068-2-32 1 m

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3.6 Technical Data

3.6.1 Device Data

Contact discharge ± 4 kV

Data interface: 1 kV

Data interface: ± 1 kV

Operation 25 g, duration 11 ms

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Table 10: Technical Data – ETHERNET Interface

Number of inputs

1 (trigger input)

Medium

Via M12, twisted pair wire, wire cross section

0.14 mm² … 0.22 mm²

Baud rate

10/100 MBit/s, Autonegotiation

Default IP address

192.168.1.99

Default subnet mask

255.255.255.0

Table 11: Technical Data – Bluetooth® Interface

Bluetooth® version

Bluetooth® 2.0

based on IEEE 802.15.1; 2.4 GHz, max. 1 MBit/s

RF transmitting power

Bluetooth® Class 1

RF input sensitivity

-85 dBm at BER 0.1%

Wireless connections

Antenna

Internal directional antenna 5 dBi (non-exchangeable)

Transmission range

Up to 400 m (class 1)

Topology

Point-to-point

Bluetooth® Profile

PAN, PANU

Coexistence

FHSS with AFH and/or user-defined channel

Low Emission Mode™

Security

Bluetooth® security mode 3 supported, 128-bit

PIN, non-discoverable mode

Table 12: Technical Data – Power Supply

Power supply connection

Via M12, max. wire cross section 2.5 mm²

Nominal Voltage

24 VDC (SELV)

Voltage range, permissible

9 V to 30 VDC

Current consumption, typical

65 mA at 24 VDC

Current consumption, maximum

200 mA at 24 V

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3.6.2 ETHERNET Interface

3.6.3 Bluetooth® Interface

3.6.4 Supply

mask, adjustable transmitting power,

encryption, authentication,

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WAGO-I/O-SYSTEM 758 Device Description 23

Conformity Marking

R&TTE

Complaint with 1999/5/EG directive (per Article 3.2)

Bluetooth®

IC „Industry Canada“

IC: 5325A-090103AP

FCC "Federal Communications Commission"

/ CFR 47 Part 15, ETS 300328

FCC ID: PVH090103AP

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

received, including interference that may cause undesired operation.

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3.7 Approvals

(1) this device may not cause harmful interference, and (2) this device must accept any interference

With the exception of Andorra, Bulgaria, France and Latvia, the device may be used without restrictions in all European countries and in Switzerland, the USA and Canada.

The device may be used inside buildings in Bulgaria. In France, the transmitting power must be limited to 10 dBm when used outside of buildings. In Norway the device may not be used with a radius of 20 km of the town center of Ny-Âlesund (Spitzbergen).

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24 Mounting WAGO-I/O-SYSTEM 758 758-915 Bluetooth

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4 Mounting

4.1 Selecting the Installation Location

In order to use all the functions of the WEG, a radio link must be established to a device having similar functions, for example a second WEG of the same type. If the two devices are relatively close to one another, that is, if the distance between them is considerably less than the potential range, the installation location and device alignment will have comparatively little impact on the radio link. If you wish to set up and maintain a radio link over the longest distance possible, however, certain requirements regarding the installation of the device and the ambient conditions must be fulfilled.

The distance between devices may not be too great. The maximum range can only be effective under optimal conditions. A lack of line-of-sight link, or misalignment of the devices will result in reduced range.

For a line-of-sight link, install the devices such that the antennas are aligned toward one another, i.e., the marked front side of the devices face one another (see also the figure and the antenna diagrams in the section “Connectors” > “Antenna”).

If there is no line-of-sight link, but both devices have an unobstructed view of the same metallic or concrete surface (such as a building ceiling), a good radio link can be ensured through reflection.

If there is neither a line-of-sight link, nor a surface to use for reflection, for example between devices in different rooms, align the devices as for a line-ofsight link. The magnitude of the reduction in range for the devices in this case depends on the amount of material, e.g., brick walls, that the radio waves must pass through. In some circumstances, it may not be possible for the radio waves to penetrate certain obstacles, such as fire protection walls, at all.

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WAGO-I/O-SYSTEM 758 Mounting 25

Table 13: Selection of Installation Location

Ambient Conditions, Installation Location

Radio link possible?

Distance between devices is more than 400 m.

Line-of-sight link between devices that are about

installed and configured.

Yes

Two plaster or brick walls are located between

Yes. Links are also possible

a wall).

A fire protection wall or a steel-reinforced

No. Reinforced concrete and

when they are too thick.

The devices are located less than 50 m apart in a

Possible. Building ceilings or

reflecting the radio waves.

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200 m apart. Devices have been optimally

the devices; distance between devices is around 30 m.

concrete ceiling is located between the devices.

plant building, with the line of sight being obstructed by numerous machines or vehicles.

without line of sight, but the range is substantially reduced, depending on the obstacle (e.g.,

other similar materials cannot be penetrated by radio waves

other metallic or steelreinforced large objects may permit an indirect link by

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26 Mounting WAGO-I/O-SYSTEM 758 758-915 Bluetooth

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4.2 Fixing

Always maintain a minimum distance of 50 cm between two WEGs!

Always maintain a distance of at least 50 cm between WEGs when installing them. Radio link quality can be degraded on failure to maintain this distance.

Do not install antenna directly in front of metallic surfaces!

The front of the WEG, and hence the internal antenna, shall not be located directly in front of metallic surfaces, as this can permanently degrade the radio capabilities of the antenna.

Use the drilled holes (see drawing below), for example, and the two M3 screws to attach the WEG to any flat, level surface.

Figure 12: Drilled holes for attaching the WEG

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5 Connect Devices

5.1 Connection

Before the device can be used, all cable connections must be established.

Ensure that wires are not live!

Power supply: Do not switch on the power supply until the device has been properly connected. LAN: Improperly routed ETHERNET cables can carry dangerous overvoltage. Always ensure that these cables have been laid properly before connecting the device to the network.

1. Use a suitable cable, such as WAGO Item 756-1203/060-050, to connect the

WEG to your network or ETHERNET terminal.

2. Use a suitable cable, such as WAGO Item 756-3101/040-020, to connect the

WEG to the external power supply unit.

Figure 13: Connecting the WEG

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28 Commissioning WAGO-I/O-SYSTEM 758 758-915 Bluetooth

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6 Commissioning

The device is not equipped with a power switch, meaning it is put into operation simply by applying power.

Use the correct supply voltage!

The output of the power supply unit must provide 24 VDC with a maximum current flow of 200 mA.

Switch on the external power supply unit to put the device into operation.

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WAGO-I/O-SYSTEM 758 Configuration 29

Table 14: Default Settings

Group

Subgroup

Parameter

Default value

Network

IP configuration

IP address

192.168.1.99

Network

IP configuration

Subnet mask

255.255.255.0

Network

IP configuration

Default gateway

192.168.1.99

Network

IP configuration

Receive IP via DHCP

Bluetooth

General

Operation mode

PANU

Bluetooth

General

Device name

“BTEG”

Bluetooth

Security

Passkey

“0000”

Bluetooth

Security

Security mode

Bluetooth

Security

Visible for other devices

Yes

Bluetooth

WLAN coexistence

Low emission mode

Off

Bluetooth

WLAN coexistence

Exclude WLAN channel

None

Bluetooth

Connection

Bluetooth address

(blank)

Bluetooth

Connection

Device name

(blank)

Bluetooth

Connection

Remote role

Panu

Bluetooth

Roaming

Link sensitivity

Medium

Bluetooth

Roaming

Connect to name scheme

Name

System

Security

Password

“wago”

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7 Configuration

After you have connected the WEG you can configure it in one of two ways:

• using the Mode membrane button and by activating certain modes

• by making settings via the Web-based Management System (WBM)

The various types of configuration are described in the following sections.

If the device has already been configured and you are not familiar with the current configuration, we recommend resetting the device to its factory default settings before making any further configuration settings. This can be done using the Mode membrane button.

7.1 Default settings

The following settings are active on initial startup of the WEG:

Manual Version 1.1.0, applicable from FW/HW Version 01/01

You can always restore the factory default settings at any time using the Mode membrane button (see following section). This can be useful, for example, if you have forgotten the IP address or the device AT password.

30 Configuration WAGO-I/O-SYSTEM 758

Table 15: Autoconfiguration Procedures

Press

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7.2 Configuration Using the Mode Membrane Button

The quickest and easiest method for configuring the device is using the Mode membrane button located at the bottom of the device. LEDs A to D indicate the status during configuration, based on the active operating mode. By repeatedly pressing the Mode membrane button you can select and start an autoconfiguration procedure in the device that then automatically carries out the device configuration for the required scenario.

Figure 14: Mode membrane button and status LEDs

7.2.1 Overview of Autoconfiguration Procedures

The following autoconfiguration procedures can be selected in the order given:

1 x

2 x

3 x

Autoconfiguration Procedures LED A B C D

1 Exit configuration mode

Exit the configuration mode without saving changes made to the device configuration.

1 Reset device to factory default settings

Restore all settings to the factory default settings.

2 Reset IP parameters

Restore the IP parameters to the factory default settings. All other settings are retained.

button

A+B

4 x

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3 Wait for automatic configuration

The device will wait for configuration by a different WEG. Although the device is connectable, it will not initiate the setting up of a link.

WAGO-I/O-SYSTEM 758 Configuration 31

Table 15: Autoconfiguration Procedures

Press

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5 x

6 x

Autoconfiguration Procedures LED A B C D

4 Initiate automatic configuration via Bluetooth

WEG-WEG bridge

The WEG automatically sets up a link to a different WEG that is in the configuration mode “Wait for automatic configuration” (LED C) and then configures that WEG.

6 Initiate automatic configuration via Bluetooth

WEG-WEG bridge with PROFINET-/PROFISAFE optimization

The WEG automatically sets up a link to a different WEG that is in the configuration mode “Wait for automatic configuration” (LED C) and then configures that WEG.

A+C

B+C

button

On configuration using the Mode membrane button, only those parameters required for the particular autoconfiguration will be overwritten.

You can initially make changes via the Web-based Management System and then, for example, inhibit WLAN channels that are not to be used (“Channel skipping”). These changes also remain effective after one of the automatic configurations 3, 4, 5 or 6.

Autoconfiguration procedures 1 to 3 always become effective; procedures 2 and 3 change the device configuration immediately. Autoconfiguration procedures 4 to 6 only change the device configuration when a radio link has been successfully established. If the WEG loses power before the autoconfiguration has been completed, or if no other WEG can be contacted via the radio link within 5 minutes for automatic configuration, the device will retain its previous configuration settings when it is restarted.

The following settings are overwritten in the course of the various autoconfiguration procedures:

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32 Configuration WAGO-I/O-SYSTEM 758

Table 16: Overwriting of Configuration

Autoconfigurati on procedure

Changes to Configuration on Successful Setup of Link

No changes made.

All settings are changed.

• Network > IP-Address: 192.168.1.99

• Network > Gateway: 192.168.1.99

Remote device using autoconfiguration procedure 5 or 6 (Initiate link

5, 6

Autoconfiguration procedure 5 and 6:

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• Network > Subnet Mask: 255.255.255.0

setup):

• Network > IP-Address: 192.168.1.99

• Network > Subnet Mask: 255.255.255.0

• Network > Gateway: 192.168.1.99

• Bluetooth > Security > Passkey: (Random value, but identical to the partner

device)

• Bluetooth > Security > Security Mode: On

• Bluetooth > Security > Visible: No

• Bluetooth > Connection > Device Name: (blank)

• Miscellaneous > Send AT command: > ATS1007=1250 > Send

Also effective when partner device is using autoconfiguration mode 6:

• De-activate the Web-based Management System

• Activate PROFINET optimization

• Network > IP-Address: 192.168.1.100

• Network > Subnet Mask: 255.255.255.0

• Network > Gateway: 192.168.1.99

• Bluetooth > Security > Passkey: (Random value, but identical to the partner

device)

• Bluetooth > Security > Security Mode: On

• Bluetooth > Security > Visible: No

• Bluetooth > WLAN coexistence > Low emission mode: On

• Bluetooth > Connection > Device Name: (blank)

• Bluetooth > Connection > Device Address: Device address of partner

device

• Miscellaneous > Send AT command: > ATS1007=1250 > Send

Also with autoconfiguration procedure 6:

• De-activate the Web-based Management System

• Activate PROFINET optimization

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Enable de-activated WBM using the Mode membrane button!

If autoconfiguration is conducted with PROFINET optimization, the device deactivates the Web-based Management System to provide short cycle times. Consequently, configuration can only be changed using the Mode membrane button. Reset the device to the factory default settings to enable access to the Web-based Management System again.

7.2.2 Selection and Activation of an Autoconfiguration Procedure

General procedure:

1. Switch off the power supply to the WEG and then re-activate power supply

to the device.

The Power LED lights up.

2. Within the first 5 seconds after applying power, press the Mode membrane

button to switch to the operating mode “Configuration selection”.

LED A lights up and the operating mode “Configuration selection” is active. If this is not the case, repeat steps 1 and 2.

3. Select the autoconfiguration procedure:

Select the required autoconfiguration procedure by pressing the Mode membrane button until the appropriate combination of LEDs lights up (see previous section “Overview of Autoconfiguration Procedures”). If you have switched through all the operating modes in order, you can return to the first option in the order by pressing the button again.

Configuration is halted if the Mode membrane button is not pressed for 20 s!

The mode “Configuration selection” is de-activated automatically if you do not press the Mode membrane button for selecting the autoconfiguration procedure. The WEG will then start up using the previous settings.

4. Activate autoconfiguration procedure:

To execute the selected autoconfiguration procedure press the Mode membrane button again and hold it in for at least 2 seconds until the LED indicators A-D or the Power LED change.

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34 Configuration WAGO-I/O-SYSTEM 758

Procedures 1, 4, 5, 6:

The LEDs A-D corresponding to the procedure will flash

disconnecting the power supply from the device.

Procedures 4, 5, 6 also end automatically on successful configuration of a link, or after a timeout of 5 minutes.

Procedures 2, 3:

The device carries out the changes to the configuration and

This only takes a few seconds.

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Autoconfiguration procedure execution: The device performs a restart as soon as the procedure has been completed successfully or canceled.

The behavior of the device up to this restart is based on the active autoconfiguration procedure:

until the procedure is concluded. All of these procedures can also be manually terminated prematurely by pressing the Mode membrane button again, or by briefly

ends the procedure directly after this.

The LEDs return to their normal status on conclusion of the autoconfiguration procedure.

Figure 15: Flow chart

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7.3 Configuration using the Web-based Management System (WBM)

A Web-based Management System (WBM) is available on an integrated Web server for configuring the WEG.

You can go the WBM by entering the IP address of the device in the browser URL line.

Device configuration is password protected. If you have forgotten the IP address or password you can reset the device to its factory default settings.

On initial commissioning, the device uses the static IP address and the default settings password (see Section “Default Settings”). You may have to modify the IP configuration of the PC from which you are accessing the WBM before a link can be set up.

7.3.1 Accessing the Web-based Management System

1. To open the WBM, launch a Web browser (e.g., Microsoft Internet Explorer

or Mozilla Firefox).

2. Enter the IP address of the WEG on the URL line and confirm by pressing

[Enter].

For WBM access; check the IP/firewall settings and the connection!

If you are not granted access to the WBM check the IP configuration for the PC from which you wish to access the WBM and the settings for the firewalls being used. Ensure that the WEG is properly connected and ready for operation and that the specified IP address is correct. Should you still not be able to set up a connection to the WBM after ruling out any error at the PC, or if you have forgotten the IP address of the WEG, reset the device to its factory default settings.

When access has been made to the WBM the WEG will display an overview page showing status information and operating elements for changing the device configuration (see figure below).

Before taking any further steps you should log on to the system using a valid password:

3. Enter your password in the field System Overview > Password.

4. Send the password by clicking on [Login].

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36 Configuration WAGO-I/O-SYSTEM 758 758-915 Bluetooth

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Observe the proper processing sequence in the WBM!

When using the WBM, always enter your password first, then click [Login] and then click [Read], to load the settings currently active in the device to the display. If you do not follow this sequence the device will display standard values (which cannot be changed) for password-protected settings instead of the actual values.

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Figure 16: WBM Configuration page

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38 Configuration WAGO-I/O-SYSTEM 758 758-915 Bluetooth

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7.3.2 “Basic” – “Advanced” Modes

Figure 17: “Basic” – “Advanced” modes

Reading or writing of parameters for the WBM is mapped internally by execution of AT commands.

When you click [Advanced] at the top of the WBM page a text dialog window “Output” is shown that displays the AT commands exchanged with the device. This display is only required when you wish to execute manual AT commands for an advanced configuration (see Section “Execution of AT Commands”).

Figure 18: View of panel in the “Advanced” mode

This display is not required for configuration of the standard device settings. Click on [Basic] to hide this text dialog window again.

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7.3.3 “System Overview” Section

The general device status is displayed in this section. You can also enter or change the access password here for protected device settings.

Change password

1. Enter the current password in the box Password (default: “wago”).

2. Log in using this password by clicking [Login].

3. Now enter your new password in the box Password.

4. Enter the password again in the box Confirm Password.

5. Save the new password by clicking on [Set Password].

Figure 19: WBM configuration page – “System Overview” section

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40 Configuration WAGO-I/O-SYSTEM 758

Table 17: WBM Configuration Page – “System Overview” Section

Entry

Input/Value/Button

Description

General

Firmware

e.g. 1.3.0

Show the firmware version for the WEG

Password ___________

Input the access password for protected device settings

[Login]

Send password

Confirm password ___________

Repeat/Confirm password

[Set password]

Send new password

Read current settings

[Read]

Update display for all parameters presented in

(read out current device settings)

Bluetooth

Local name

BTEG

Display local device name

Passkey

0000 (default)

Display access code

Connections

Connected

Bluetooth® link established

Not Connected

Bluetooth® link not established

[Update status]

Read out and display all parameters for the

the device

Network

IP address

162.168.1.99

Display IP address for WEG

Subnet mask

255.255.255.0

Display network mask

Ethernet MAC address

e.g. 00:12:f3:0d:d6:1c

Display the ETHERNET MAC address

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the WBM

section “System Overview” > “Bluetooth” from

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WAGO-I/O-SYSTEM 758 Configuration 41

Table 18: WBM Configuration Page – “Network” section

Entry

Value

Description

IP configuration

IP address

162.168.1.99

Input IP address for WEG

Netmask

255.255.255.0

Input the network mask

Default gateway

192.168.1.99

Input the standard gateway

Receive IP via DHCP

yes

Automatic allocation of IP address via DHCP

If there is not active DHCP server in the network, the address”, “Netmask” and “Default gateway”.

De-activate DHCP, manually set IP parameters

The device will use the IP settings entered for “IP address”, “Netmask” and “Default gateway”.

[Set IP]

Save selected settings in the section “IP configuration” in the WEG

Always restart the device after changing the IP settings!

Restart the “ you have changed the IP settings. The can be communicated with under the new IP configuration after restart.

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7.3.4 “Network” Section

You can perform network configuration in this section.

Figure 20: WBM configuration page – “Network” section

WEG will use the IP settings entered for “IP

WEG in the section

Miscellaneous” using [Restart module] if

Use different IP addresses in PAN!

To rule out any IP address conflicts when linking the WEG to other PANcompliant device, the devices must use different IP addresses.

WEG

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42 Configuration WAGO-I/O-SYSTEM 758 758-915 Bluetooth

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Reset IP parameters without changing settings!

If you no longer know the IP address for your WEG you can reset the IP address for the WEG using the Mode membrane button without having to change other settings (see Section “Configuration using the Mode Membrane Button” > “Overview of Autoconfiguration Procedures” > “3 – Resetting IP Parameters”).

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WAGO-I/O-SYSTEM 758 Configuration 43

Table 19: WBM Configuration Page – “Bluetooth” > “General”

Entry

Value

Description

General

Operation mode

PANU The field “Operation mode” is reserved for future use.



Leave this setting at “PANU”.

Device name

BTEG

Assign a device name (max. 248 characters)

When inquiries are directed to the WEG the device identifies itself using this name.

Use unit device names!

Always use unique device names to facilitate identification of the devices.

[Set

Save selected settings in the section “General” in the WEG

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7.3.5 “Bluetooth” Section

You can make changes in this section which affect the radio communications interface.

Figure 21: WBM configuration page – “Bluetooth” section

7.3.5.1 Bluetooth: General

NAP

General]

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44 Configuration WAGO-I/O-SYSTEM 758

Table 20: WBM Configuration Page – “Bluetooth” > “Security”

Entry

Value

Description

Security

Passkey

_________

Assign a passkey (max. 16 characters, no spaces, Standard passkey: “0000”)

The passkey (commonly referred to as the “Bluetooth® PIN”) is used as the base value for calculating the actual link keys ( The link keys, in turn, enable the use of secure authentication and encrypted data transfer.

Security mode

WEG requires a secure wireless link with other partner devices

Both ends of the link must use the same passkey when a secure wireless link is set up.

off WEG does not require a secure wireless link with other partner

devices

The passkey is not evaluated

Visible for other

yes

WEG responds to inquiries from other devices

The WEG replies only when not linked. The actively linked to another device.

WEG does not reply to inquiries from other devices

Other devices may only set up a wireless link if they were previously linked to the changed since then.

[Set Security]

Save selected settings in the section “Security” in the WEG

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7.3.5.2 Bluetooth: Security

“Link Keys”).

devices

WEG does not usually reply to inquiries when it is

7.3.5.3 Bluetooth: Roaming

The WEG supports roaming between several other WEGs or PAN-compliant

Bluetooth® network access points. The Bluetooth® device name of the other

device is used in this process to identify as many link partners as possible.

If a device name has been given under “Bluetooth > Connection > Device name” and if a configuration has been saved using [Set Roaming], the device will always attempt to establish a link based on the specified strategy (“Connect to name scheme”).

In addition to restart and loss of link, the trigger input can also be used to initiate a new link setup. If a rising flank is recognized at the trigger input (see Section “Connections”), the WEG will terminate the existing wireless link and will set up a new link in line with the specified strategy.

WEG and their passkey has not

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WAGO-I/O-SYSTEM 758 Configuration 45

Table 21: WBM Configuration Page – “Bluetooth” > “Roaming”

Entry

Value

Description

Roaming

Link sensitivity

low

Sensitivity level at which the linked WEG reacts to disturbed radio

strong signal.

The higher this setting, the earlier the WEG attempts to change the link. Select higher settings for scenarios in which fast roaming is required. Select low reception conditions.

Connect to name

Strategy for searching for new link partners

Assign name or partial name of potential partner devices for evaluation of scheme

The settings defined here are only effective (or of significance) when the field section “Bluetooth”> “Connection” is not blank.

Name

• The WEG will search for exactly one device.

•

This setting is suitable for scenarios in which normal the device to be linked is within range. If other active different procedure.

First name

• The WEG searches for a list of devices in the

•

The initially detected device may be a device with low signal strength, which will ultimately result in increased roaming.

Best name

• The WEG searches for a list of devices in the

•

time to set up a link, but does, however, usually provide the best results.

[Set

Save selected settings in the section “Roaming” in the WEG

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scheme

medium high maximum

link and attempts to switch to a partner device with a potentially



settings for quasi-static links with adverse

“Connect to name

”!

Device name in the

The device checks whether the device name contains the



search string (see “Connection”).

The device establishes the link when this condition is

fulfilled; otherwise it begins a new search (inquiry).

ly only

Bluetooth® devices are anticipated, use a

Roaming]

Manual Version 1.1.0, applicable from FW/HW Version 01/01

surrounding area.

The device checks each entry in the list to determine

whether the specific device name contains the search string.

The WEG establishes a link with the first device to

which this applies. As the order of the devices in the list of search results is random, the chosen device may not be the device with which the best link was able to be set up.



surrounding area.

The device checks each entry in the list to determine

whether the device name contains the search string.

The signal strength is determined for each discovered

device that meets this condition.

The WEG then establishes the link to an acceptable

device with which a link can be set up.

Of the three strategies, “Best name” requires the longest

46 Configuration WAGO-I/O-SYSTEM 758

Table 22: WBM Configuration Page – “Bluetooth” > “WLAN coexistence”

Entry

Value

Description

WLAN coexistence

Low emission

When searching for linkable partners, the WEG employs the

This enables the frequency band to be commonly used more effectively. The that actively sets up the link. Links can be set up quickly to partner devices with the “ Linking “

is only possible with restrictions.

With this mode activated, device inquiry and link setup require much more time.

With the fulfills the requ industry for secondary radio communications systems.

off

No additional coexistence measures are implemented besides those set forth in the Bluetooth® standard.

Exclude WLAN

None

The WEG avoids the frequencies used by the specific WLAN

the three dropdown fields.

[Set

Save selected settings in the section “WLAN Coexistence” in

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7.3.5.4 Bluetooth: WLAN Coexistence

The adaptive frequency hopping technique (AFH) has always guaranteed excellent coexistence to other existing wireless networks. In this section you can define settings that enhance coexistence to WLAN systems in particular even more:

• In the “Low Emission Mode™” special coexistence measures are

implemented to ensure that the WEG can also be operated in parallel with WLAN systems without any interference, including during a search (inquiry) for linkable devices.

• Using the option “Exclude WLAN channel” you can explicitly inhibit up

to three WLAN channels. The frequency range for these WLAN channels will then not be utilized by the WEG.

mode

channel

1 …

Coexistence]

“Low Emission Mode™”.



channel when conducting its own wireless transmission. If required you can inhibit up to three WLAN channels using

the WEG.

WEG only evaluates this setting when it is the device

Low Emission Mode™” activated.

to partner devices without, or with a de-activated

Low Emission Mode™”

“Low Emission Mode™” activated the WEG

irements of the German automotive

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7.3.5.5 Bluetooth: Connection

In this section you can define under what preconditions a remote Bluetooth® device can be accepted as a link partner.

Identification performed using either the device name or the device address!

Acceptable communications link partners are defined either by their device address or by their device name. As an OR option, one of these two fields must remain blank.

Active link setup when device name / address has been entered!

If either the device name or device address field is not left blank the WEG will attempt to always actively set up a link on its own. This will prevent other devices from establishing a link to this WEG. When WEGs link up, only one of the devices may be active in setting up the link; the other one must remain passive. Therefore, the two fields for device name and device address must be blank for the passive WEG.

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48 Configuration WAGO-I/O-SYSTEM 758

Table 23: WBM Configuration Page – “Bluetooth” > “Connection”

Entry

Value

Description

Connection

Bluetooth

________

Enter the Bluetooth® address of the partner device



The communications link partner will be defined explicitly using this address. Links to other devices are not possible; for this reason the well precautions.

Device name

________

Enter the device name for the link partner



The WEG identifies link partners on the basis of their device name entered here. Only those remote devices whose device names concur with the string entered in this field, or that contain this name as a substring, are considered to be acceptable devices (see Se “Roaming Among WEGs” in the appendix).

Observe the proper spelling/case/structure of the device name!

In order for a remote device to be detected as an acceptable device, there must be 100% concurrence with the character string entered in the field name (for example, “weg” is not identical to “WEG”).

Remote role

Pan

Selecting the operating mode of the partner device

device or an NAP

[Set]

Save selected settings in the section “Connection” in the WEG

[Scan]

Search for compatible partner devices

Discovered devices are displayed in the dropdown list above the Select the preferred partner device from this list.

Expand

To broaden the selection of discovered devices, de activate the “

all].

[Set peer]

Automatically enter the data for the partner device (Bluetooth address) and establish the link

[Connect]

Link up with partner device

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address

“Bluetooth address” setting is particularly

-suited for applications requiring stringent security

ction “Sample Configuration” >

Panu

Nap

Device

• PANU (Personal Area Network User) for links to another WEG (standard setting)

• NAP (Network Access Point) for links to access points

• PAN (Personal Area Network) for links to either a PANU

[Scan] button.

selection of partner devices!

“Low Emission Mode™” in the section

WLAN Coexistence”. Save this setting using [Write

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Table 24: WBM Configuration Page – “Miscellaneous” Section

Entry

Value

Description

Miscellaneous

Send AT command

_________

[Send]

Input AT commands to use advanced device functions Send the AT command for execution to the WEG

 To use this function you must already have clicked

[Advanced]

section to show

the text dialog window with panel output.

Write settings

[Write all]

Save all of the settings currently shown in the WBM system in the device.



All settings will become effective immediately, except for the IP settings.

Check the parameters before saving!

Before storing the parameters, check to ensure that you actually wish to save all parameters.

Additional Information: [Write all]

buttons

[Set Roaming], [Set Coexistence] and [Set].

[Reset module]

Perform restart



Any changes to the configuration that have not been stored will be lost. If the IP configuration has been changed, the device can be communicated with under the new configuration after restart.

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7.3.6 “Miscellaneous” Section

You can define special settings in this section.

Figure 22: WBM configuration page – “Miscellaneous”

in the “System Overview”

includes all of the functions for the

[Set IP], [Set General], [Set Security],

of the entered

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7.3.6.1 Execution of AT Commands

Both the AT commands transmitted via the WBM and the responses from the device are displayed in the text dialog window “Output”.

Output:

AT*AILVI? *AILVI:"WAGO","1.3.1 [10:49:34,Nov 10

2010]","1.0","1.0","NXP" OK

AT*AILBA? *AILBA:0012F30DD61C

AT*ADLNK? *ADLNK:0,N/A

AT*AMSEID? *AMSEID:13576

Figure 23: "Output" text dialog window for panel interface

Writing commands are concluded with "=<v>", with "<v>" indicating the value to be written. Read commands end with "?".

An example of write access could be "ATS1109=6", with "ATS1109?" as write access.

When the command has been executed, the WEG replies with "OK", followed by data (for read-only access). If the command fails, "ERROR" is signaled.

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Table 25: AT Commands

AT Command

Description

AT&F

Reset the WEG to the factory default settings. There is no distinction

possess any parameters.

ATS<n>?

Query or write the current value from the S register

1250:

Optimization for minimal latency for linking with another WEG

25000:

Optimization for best compatibility for linking to a generic

Bluetooth

: Max inquiry output power:

0x01:

Only display RSSI at LEDs A..B

0x02:

Only display link quality at LEDs A..D

0x03:

Display RSSI at LEDs A..B and link quality at LEDs C..D

AT*AMGD?

Up to 31 bytes of any user-specific data

can be stored in the

(read access

Queries of the current transmitting power

level.

AT*AMMP?

Max output power:

the next lower, valid value.

AT*AMSBN?

Read / Write SNMP name. If SNMP is to be used, this field should be

(<s> = 0) or non-volatile (<s> = 1) value.

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ATS<n>=<v>

drawn between read and write access for this command, nor does it

<n>.

<n> = 1007: Poll interval:

Defines the time intervals that the WEG checks whether new wireless communication messages have arrived from the partner device. Low values reduce latency, high values reduce current consumption.

Recommended values:

access point.

<n> = 1109

Upper limit for transmitting power (in dBm) for device search (inquiry) and link setup (paging). This value should never be selected so as to be greater than “Max output power”.

<n> = 1211: SMART LED mode:

Function of LEDs A..D for an active wireless link.

AT*AMGD=<data>

only) AT*AMRP?

AT*AMMP=<v>

WEG. This data is permanently stored and is also available after a restart.

This query can determine any transmitting power margin that may be available. If this value is lower than 12, the link to the partner device is so strong that the WEG need not operate at the full transmitting power

Read out/Set upper limit for the maximum transmitting power (in dBm). The WEG will never violate the limit specified here. If an unacceptably high value is used for write access, the WEG was use

<data>

AT*AMSBN=<v>, <s>

assigned the value “WAGO_WEG_11:22:33:44:55:66”, with the MAC address of the WEG to be used in place of the digits shown here. The value <s> indicates whether the name is to be stored as a volatile

Additional Information:

A complete list of the AT commands is available from WAGO Support.

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8 Appendix

8.1 Sample Configurations

8.1.1 Preparation

Reset the WEG prior to the sample configuration! Always perform the following steps for the sample configuration for all WEGs involved to reset the WEGs to the factory default settings.

1. Connect the WEG to the power supply. If power is already applied, disconnect it briefly and then re-activate power supply to the device.

2. Within 5 seconds after connecting power pressure Mode membrane button.

The “A” LED lights up and the Configuration mode is active.

3. Press the Mode membrane button 1 x to select autoconfiguration procedure 2 (“Reset to Factory Default Settings”).

LED “B” lights up.

4. Press and hold the Mode membrane button for at least 2 seconds until LED “B” goes out.

The WEG has now been reset to the factory default settings.

8.1.2 WEG-WEG Bridge

Using two WEGs, a wireless link can be set up between spatially separated ETHERNET segments. This is useful, for example, when laying of a cable may not permitted or practical on account of structural conditions.

In this configuration example the WEGs fulfill the function of an ETHERNET bridge, i.e., they make network nodes of both ETHERNET segments accessible to one another by creating a transparent link on Layer 2 of the OSI reference model.

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Figure 24: WEG-WEG bridge

The easiest way to conduct this configuration is to activate the associated autoconfiguration procedure using the Mode membrane button.

Configuration changes the IP settings!

Please note that the configuration described below will also change the IP configuration of the devices (see Section “Configuration using the Mode Membrane Button”). Upon conclusion of the autoconfiguration, the Web-based Management System can be accessed by every WEG under the new IP configuration.

8.1.2.1 Configuration of the 1st WEG Using the Mode Membrane Button

1. Activate the Configuration mode by pressing the Mode membrane button 1 x within 5 s after restarting the device. (If an extended period of time has passed since the last restart, disconnect the power from the device, reconnect it and then press the Mode membrane button.)

The “A” LED lights up and the Configuration mode is active.

2. Press the Mode membrane button 3 x.

LED “C” lights up.

3. Press and hold the Mode membrane button for at least 2 seconds until LED “C” begins flashing.

This WEG is now in the operating mode “Wait for automatic configuration”, which remains active for about 5 minutes.

8.1.2.2 Configuration of the 2nd WEG Using the Mode Membrane Button

The “A” LED lights up and the Configuration mode is active.

2. In the Configuration mode press the Mode membrane button 4 x.

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The “A” and “C” LEDs light up.

3. Press and hold the Mode membrane button for at least 2 seconds until LED “A” and “C” begin flashing.

The WEG now attempts to set up a link to the 1st WEG. Once this link has been established successfully, the 2nd WEG will configure the 1st WEG. Both devices then carry out a restart and re-establish a wireless link automatically. Successful autoconfiguration and establishing of a wireless link is indicated by the permanently lit blue link LED “(((.)))” on the top of both devices.

8.1.3 Roaming Among WEGs

When several WEGs are used, point-to-point links can be established consecutively between an ETHERNET segment and alternating other ETHERNET segments. This provides an ETHERNET device mounted on an independent transport system, for example, to always have access to a central network along long transport sections or in different rooms via a WEG with other suitably positioned WEGs.

Figure 25: Traveling automation station

In scenarios with automatically changing links between several partner devices (“roaming”), each participating WEG must play one of two roles:

1. Active Device In this function the WEG initiates links to other WEGs automatically. Identification of suitable link partners is determined using the device names.

2. Passive Device In this function the device is ready to establish a link to any other WEGs but does not initiate setup of a link on its own.

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Table 26: Common Configuration of WEGs

Group, Subgroup, Parameter

Value

Bluetooth, Security, Passkey

Must be identical for all WEGs.

Bluetooth, Security, Security Mode

Must be identical for all WEGs, recommended: On

Bluetooth, WLAN coexistence, Exclude WLAN channel

Should be identical at all WEGs.

Bluetooth, Connection, Bluetooth Address

(blank)

Bluetooth, Connection, Remote role

PAN

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In moving scenarios the passive devices involved in link setup are usually stationary (access points) and make up the majority of the devices, whereas the active device involved in link setup represents the mobile component and is only present as a single device or a low number of devices. Although the descriptions given below concur with this breakdown, it is not necessarily mandatory; a stationary device can also be the active device and a mobile device can be passive for link setup. The ration of active to passive devices, and vice versa, is also freely definable for roll assignment.

8.1.3.1 Common Configuration of WEGs

The following settings should be made via the Web-based Management System at all WEGs that are used, regardless of their role in this scenario.

8.1.3.2 Configuration of Access Point WEGs

The following settings must be made via the Web-based Management System for each WEG that is to be used as an access point.

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Table 27: Configuration of Access Point WEGs

Group, Subgroup, Parameter

Value

Bluetooth, General, Device name

Appropriate, device-specific name with

“WEG_myAP_Z”.

Bluetooth, Security, Visible for other devices

Yes Bluetooth, Connection, Device name

(blank)

Miscellaneous, AT commands,

This setting limits the range of the

partners (roaming).

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a portion of the name that applies to all devices. For example, the following name can be selected when a total of three WEGs are used as access points: “WEG_myAP_X”, “WEG_myAP_Y”,

AT*AMMP (Maximum transmit power)

specific WEG. Range is cut in half for each 6 dB. This is useful when a particular access point is to be linkable only within a relatively small radius to the device which is configured for changing link

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Table 28: Configuration of the WEG with Changing Link Partners (Roaming)

Group, Subgroup, Parameter

Value

Bluetooth, Connection,

Substring that is identical to the device names

“WEG_myAP_Y”.

Bluetooth, Roaming,

Based on the desired scenario – high setting

are to be maintained as long as possible.

Bluetooth, Roaming, Connect to name scheme

Recommended: “Connect to best name”

Miscellaneous, AT commands,

power)

Recommended: 20

Miscellaneous, AT commands, S register 1109 (Default transmit

This value determines at which range access

than 6.

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8.1.3.3 Configuration of a WEG with Changing Link Partners (Roaming)

You must make the following settings via the Web-based Management System for the WEG that is to be linked to alternating link partners.

Device name

Link sensitivity

AT*AMMP (Maximum transmit

power)

of all other WEGs to which a link is to be established. For example, this may be “WEG_myAP_” for links to devices having the name “WEG_myAP_X” and

when the device should switch access points at an early stage, low setting when existing links

points can be detected when searching for other devices. Accordingly, this value should be low for a dense network of access points and high for other cases. In any case the selected value must not exceed the setting for “Maximum transmit power” (AT*AMMP); it is better when this value is less

8.1.3.4 Roaming with Several Devices

Several devices, which can switch between link partners (roaming) can normally be used. If, however, several of these devices are located within the range of the same access point, only one device will be able to set up a point-to-point link. If enough WEGs are available, this problem can be resolved by each access point comprising several WEGs.

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Table 29: One or More WEGs at a Generic Bluetooth® NAP

Group, Subgroup, Parameter

Value

Bluetooth, Security, Passkey

Identical to the item selected at the access point.

Bluetooth, Security, Security Mode

Identical to the item selected at the access point.

Bluetooth, WLAN coexistence, Low emission mode

Off

Bluetooth, Connection, Bluetooth Address

MAC address of the access point, if known; otherwise leave blank.

Bluetooth, Connection,

If you do not know the MAC address for the

access point; otherwise leave blank.

Bluetooth, Connection, Remote role

NAP

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8.1.4 One or More WEGs at a Generic Bluetooth® NAP

A link can be set up to any Bluetooth® network access point (NAP) using a WEG to enable communication with devices in its ETHERNET segment. The following settings must be made for this in the Web-based Management System in the WEG:

Device Name

The access point must normally be properly configured before a link can be established. Information necessary for this can be found in the documentation for the specific device.

access point enter the device name for the

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Table 30: Cycle Times between Master and Smaller Network Consisting of Slave Nodes

Number of slave nodes

Minimum cycle time [ms]

≥ 10

≥ 20

≥ 30

≥ 40

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8.2 Time Response

Optimal time response is achieved when a WEG is operated together with another WEG. Radio transmission then requires about 7 ms. The reply time for double transmission, such as for a ping, is about 14 ms.

On account of the limited bandwidth of the transmission path, a delay of around 8 ms must exist between transmissions of ETHERNET data packets. You must therefore set the cycle time appropriately for the bus master for transmission of cyclic fieldbus data.

8.2.1 Time response example: PROFINET

Recommendations for using a WEG-WEG bridge for transmitting data for a PROFINET network are given below.

In the event that outside data, such as from the IP protocol family, is present in addition to the PROFINET network data, PROFINET optimization should be activated, to ensure that the PROFINET data is handled with a higher priority. Failure to activate this option can result in the outside data occupying transmission bandwidth, making it unavailable for transmission of the PROFINET data.

The following minimum cycle times shall not be violated if the master is operated at one end of the wireless link and the smaller network with the slave nodes at the other end:

The data given in the table is based on typical applications, which tolerate sporadic packet loss or delays and which only signal an error after one or two repeated packet loss, for example.

When protocol or application data that must be in real-time is transported via the cyclic bus, the mandatory timeout must be at least four times the current cycle time, plus the one-way transfer time. Normally, a value less than that indicated in the table below should not be selected:

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Table 31: Mandatory Timeout

Number of slave nodes

Minimum timeout value [ms]

≥ 60

≥ 100

≥ 150

≥ 200

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Although linking of extensive PROFINET networks via wireless links is possible, this must be done using appropriately relaxed time limits.

8.3 Data Rate

The WEG offers a particularly robust substitute cable path with a long range thanks to the use of Bluetooth® technology. Transmission is only transparent, however, when the data to be transferred does not exceed the wireless link bandwidth. The maximum theoretically achievable data rate for bidirectional transmission via a WEG-WEG bridge is around 0.5 Mbit/s for each direction. Under actual conditions the maximum theoretical rate may not be fully achievable, depending on the type of ETHERNET packets to be transported. The device is not or is only conditionally suitable for applications such as streaming of multimedia content. The device is primarily used for wireless linking of automation systems, which transfer set volumes of process data in defined cycles.

8.4 Coexistence

A basic understanding of the significant influencing factors is required to optimize coexistence between different wireless technologies and/or devices. A brief description of the essential basics is therefore given below. These are followed by specific instructions for appropriate configuration of the WEG to conduct optimization of coexistence tailored to your particular application.

8.4.1 Basics

A significant advantage of Bluetooth® technology is that Bluetooth®-based products can carry out wireless communications license free. This is enabled using the ISM band at around 2.45 GHz, in which license-free data transmission is permitted throughout the world as long as specific provisions are adhered to.

However, as radio frequencies for data transmission are only available for a limited period, the range between 2.4 GHz and 2.5 GHz in particular is currently used by a number of standardized and proprietary technologies alike. Despite each technology having to support automatic coexistence mechanisms, these automatic mechanisms cannot always guarantee interference-free coexistence when the density of wireless users at a location exceeds certain limits. As nearly every technology will repeat transmission of data automatically in the event of interference, data loss or corrupt data can be ruled out, but the achievable transmission rate is reduced, thus increasing the transmission and reaction times.

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Some companies have therefore begun having the use of wireless technologies organized by a central frequency utilization plan. The following basic multiplex techniques are employed to ensure interference-free coexistence:

1. Time-Division Multiplex

Different devices must transmit simultaneously in order for a disturbance of two or more transmission signals to occur. At low traffic volumes, considerably more devices located near one another can be operated before a disturbance occurs.

2. Code Multiplex Even if radio signals are transmitted at the same time at the same location and in the same frequency range, the signals can be differentiated and sorted out at the receiving device on the basis of the codes (or frequency splitting techniques) that are used.

3. Space-Division Multiplex

As wireless technologies may only operated with limited transmitting power in the ISM band, the transmitted signals become so weak at a certain distance that they no longer interfere with other devices.

4. Frequency-Division Multiplex Radio signals that use clearly isolated frequencies do not interfere with one another.

Availability of the multiplexing techniques presented here to the user does, however, vary to substantially different degrees.

1, for example, is essentially determined by the communicating applications. Although consideration can be given in the development of the application to ensuring that only important data is transmitted and that there is no steep increase in data traffic under critical conditions in particular, the stipulated process-based limits are nevertheless always tight. The method explained under 2 is employed automatically by the wireless technologies involved; options for adaptation by the user are not given and would not be practical in any event. The techniques described under 3 and 4 can, on the other hand, be easily integrated in a frequence utilization plan. Spatial distribution of devices taking part in wireless communication can easily be planned. Taking into consideration the structural conditions, in particular of fire protection walls or other “absorber” obstacles, mutual interference can be completely ruled out. Frequency-division multiplexing can be employed when clear, spatial separation is not possible. Some technologies even enable the user to specify set frequency ranges to allow them to be reserved exclusively for certain devices. Other technologies monitor the frequency band being used and automatically avoid ranges already experience intensive use.

Implementation of Bluetooth® technology in the form of the WEG 758-915 supports both approaches.

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8.4.2 Space-Division Multiplex (Adaptation of Transmitting Power)

Bluetooth® technology implements automatic adaptation of transmitting power

based on the signal quality. When the devices receive a very strong signal they reduce the transmitting power automatically; similarly, they also increase transmitting power when weak signals are received. This can be a problem to the extent that this mechanism does not recognize the cause for the poor signal. For example, when two devices equipped with different technologies are installed directly next to one another, this may degrade the reception quality on account of transmission by the other device. Now, when the transmitting power is increased due to poor reception, this may degrade reception even further. In cases like this and other similar scenarios, space-division multiplex should be provided as a better solution, based on proper installation and configuration.

It can usually be assumed that over a distance at which two devices with the same technology can no longer receive signals the devices also will not cause any interference.

By reducing the “Maximum transmit power” using the AT command

AT*AMMP=<v> to the extent that reception is just possible at the planned

installation location you can limit the radius covered by transmission to a minimum

The figure below illustrates the behavior for the maximum radius covered, depending on the optional device settings, (assuming unobstructed propagation of radio waves). A range difference of a factor of 10 exists between the highest and lowest limit that can be selected.

20 dBm

10 dBm

4 dBm

0 dBm

Figure 26: Range and limiting of transmitting power

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8.4.3 Frequency Multiplexing (Switching of Channels with AFH and FHSS)

WLAN and Bluetooth® are the most common technology systems that utilize the license-free 2.45 GHz frequency band.

WLAN based on IEEE 802.11 b/g

• 11 channels for use worldwide

• 20 MHz bandwidth per channel

• Maximum of 3 channels can be used without any overlapping, e.g., channels

1, 6, 11

ISM band: 2400 MHz ... 2483.5 MHz

Figure 27: “Adaptive Frequency Hopping” (AFH) with WLAN example

Bluetooth® based on IEEE 802.15.1

• 79 channels for use worldwide

• 1 MHz bandwidth per channel

Each connection can utilize all channels using the “Frequency Hopping Spread Spectrum” (FHSS). Only one channel is used at one time; this can be changed up to 1600 times per second.

Figure 28: AFH with Bluetooth

example

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Coexistence of Bluetooth® and WLAN

The Bluetooth® system (here: the WEG) employs “Adaptive Frequency Hopping” (AFH). The frequencies utilized in a WLAN system can be detected as being interfered with (see figure below). In the example shown here, the Bluetooth® system does not use the affected channels 28-51, enabling WLAN and Bluetooth® to both have transmission without interference.

Bluetooth® channel 0...27 WLAN channel 7 Bluetooth® channel 52...78

Figure 29: AFH with Bluetooth

and WLAN example

For AFH to be effective, transmission by the WLAN system must produce signals strong enough to interfere with Bluetooth® transmission. The figure below how

Bluetooth® system transmission (blue/red) is repeatedly disturbed by an outside

transmitter (purple). After a brief time AFH detects that the frequency involved is being interfered with and avoids this frequency in the future (transparent red). WLAN system transmission signals are also present (green/yellow) that do not disturb Bluetooth® transmission, but, due to its low signal strength, is likewise disturbed (yellow), making repetition necessary.

Figure 30: Bluetooth

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The WEG also enables you to also “blacklist” (inhibit) frequency ranges in order to enhance coexistence between competing technologies:

 In the Web-based Management System under “Bluetooth > WLAN

coexistence > Exclude WLAN channel” enter the channel used by the WLAN; these frequencies will then be permanently blocked (highlighted in light blue).

After this, repeated transmission will no longer be required, as the transmission frequencies will not be disturbed (see figure below).

Figure 31: Bluetooth

with AFH and “Chanel blacklisting”

Optimum coexistence can be achieved using a combination of AFH and manual blocking of WLAN frequency ranges, guaranteeing undisturbed operation at a maximum transmission rate and minimum transmission and reaction times.

8.4.4 Low Emission ModeTM

The properties of the Bluetooth® technology and setting options for the WEG described in the previous sections ensure that optimal coexistence is achieved when the device is in operation.

In addition to the properties during ongoing operation, frequency utilization for searching for connectable devices (Inquiry) must also be taken into account. During this inquiry phase, Bluetooth® devices transmit for up to 10 seconds, depending on device implementation, at set frequencies without utilizing the coexistence mechanisms available for ongoing operation. Therefore, if the use of the Bluetooth® device involves frequent inquiries, such as for roaming, this can represent a high interference potential for other wireless systems.

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WEGs therefore implement the “Low Emission ModeTM” to minimize the adverse effects of inquiry processes.

 When you activate the setting “low emission mode” in the Web-based

Management System for “Bluetooth > WLAN coexistence”, the WEG will reduce all device searches (Inquiry) to a minimum.

This ensures that disturbance of any WLAN transmission that is interfered with is limited only to a very short period.

Implementation of the “Low Emission ModeTM” or similar mechanisms is a prerequisite for production facilities of the German automotive industry, among others, for authorization to operate a Bluetooth® system.

Active “Low Emission ModeTM” can slow down roaming!

Use of the “Low Emission ModeTM” can result in not all detectable devices being discovered immediately on an inquiry. It must therefore be anticipated that switching to different access points will take more time than normal for roaming.

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8.5 Range in Open Field

The maximum distance that can be overcome by a radio link is defined by the following factors:

1. Input Sensitivity

This denotes the capability of the device hardware to detect the radio signal transmitted by the remote device. The greater the sensitivity, the more weaker signals that can be received.  This is a permanent device property.

2. Transmitting Power

This denotes the signal strength which the device hardware outputs/can output for transmitting.  The maximum transmitting power for the WEG can be set as a parameter. Transmitting power should be set to the highest level for the maximum range.

3. Antenna Gain

This factor denotes the focusing or bundling properties of the antenna. An antenna with high antenna gain exhibits a strong alignment characteristic, i.e., depending on the antenna alignment, only highly amplified or extremely attenuated signals can be received.  The internal antenna of the WEG possesses an antenna gain of 5 dBi, meaning that the reception properties can be greatly influenced by correct alignment. Best results are achieved when the antenna (front side of device) is facing exactly in the direction from which the radio signals are being received.

4. Ambient Conditions

This factor deals with the physical environment/area around the wireless system. To achieve the maximum range a line-of-sight link should exist between the devices and there should be no objects present along the direct line-of-sight link within a specified radius (the so-called 1st Fresnel zone see figure below). If this zone is even only partially blocked by any objects the achievable range can quickly be cut in half.

Figure 32: Fresnel zone

The shape of the 1st Fresnel zone is roughly an ellipse whose largest diameter (twice the radius of the 1st Fresnel zone) is at precisely half the distance.

The table below lists the radii that are to be kept clear:

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Table 32: Radii to be kept clear

Distance

Radius for 1st Fresnel zone

100 m

1.7 m

200 m

2.5 m

300 m

3.0 m

400 m

3.5 m

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Range can be affected by other wireless systems!

Other range-influencing factors that are difficult to detect and rule out exist in the spurious irradiation from other wireless systems and/or in a temporal change of the radio channel, for example when the subscriber moves (swaying of the mast in strong wind), or other changes in ambient conditions (vehicles, movement of stored goods, pedestrians). These factors can make a precise prediction of the maximum range extremely difficult.

Effective path of radio waves is more significant than the actual distance!

Overcoming of maximum distances for a line-of-sight link is a scenario completely different from use inside rooms or in the direct vicinity to competing wireless technologies. In these types of scenarios the decisive factor is frequently not the actual distance between the devices, but, rather, the effective path taken by the radio waves for multipath propagation, along with the actual interference present at the exact installation location. Under some circumstances, signal quality may even be enhanced by increasing the distance between the devices.

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8.6 Data Security for Radio Transmission

It is often assumed that wireless communication systems are less secure than lineconnected systems. When used and operated correctly, wireless systems offer at least an equivalent level of security.

The following conditions must apply before an unauthorized user can obtain access to data exchanged via wireless communication:

1. The attacker must be familiar with the communication system in use and be

within the operating range of the system.

2. Radio transmission must take place without the use of any security

mechanisms offered by this technology or the attacker must have adequate means to determine the security code.

A Bluetooth® network whose devices are set such that they do not reply to search requests by outside devices can only be detected using special instruments and only within the short radius around the transmitting devices. This is primarily due to the FHSS that is used which ensures that the frequency of the transmission channel is changed up to 1600 times per second. This not only improves coexistence, but also makes interception of the transmitted data extremely difficult.

 To enjoy the benefits of this security mechanism, go to “Bluetooth >

Security” and set the parameter “Visible for other devices” to “no”.

The security mechanism is activated automatically when conducting configuration using the Mode membrane button!

If a link between WEGs is being configured using the Mode membrane button, the devices automatically activate this security setting (“Bluetooth > Security” > Parameter “Visible for other devices” = “no”).

Even when a Bluetooth® network is located at a location with public access and a potential attacker is aware of the network, data transfer can nevertheless only be intercepted using special equipment either when transmission is conducted without encryption, or when a non-secure code is used.

 To achieve the best level of security go to “Bluetooth > Security > Passkey”

and select a secure code consisting of up to 16 characters that is neither obvious, nor made up of a simple string of characters and, under “Bluetooth > Security”, set the parameter “Security Mode” to “on”.

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The secure mode is preset when conducting configuration using the Mode membrane button!

If a link between WEGs is being configured using the Mode membrane button, the devices will automatically activate the secure mode and select a random, secure code.

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8.7 Health Considerations

The device emits microwave radiation. It is explained in the safety instructions that the device is not meant to be directly operated while in contact with the human body. As with any other type of radio waves, there is a certain degree of interaction between microwave radiation and human tissue. The intensity of this radiation in the frequency range used by the device is, however, the decisive factor in determining whether these effects can be measured or whether they may even be harmful.

Despite their related frequency ranges, communication devices are in no way comparable to microwave ovens, which operate at a considerably higher power level (600 W and higher) and concentrate their energy into a tightly enclosed compartment in order to achieve the best effect.

Radio communications devices, which are allowed to communicate license-free throughout the world in the ISM band at around 2.45 GHz are, on the other hand, subject to legal provisions restricting their transmitting power to 20 dBm EIRP (“equivalent isotropic radiated power”), which corresponds to an output of 100 mW = 0.1 W.

Commercially available cell phones, which are carried close to the body or held up to the ear, operate at frequencies up to 1.95 GHz and may only have a transmitting power of up to 2 W EIRP. In-car phones and other similar devices which are not carried on the body may even have a transmitting power of up to 8 W. These values exceed the maximum, permissible transmitting power for Bluetooth® technology in the ISM band by a factor of 20 or 80.

The distance to the antenna must also be taken into account here. At a distance of merely one meter the field strength already drops by 40 dB, which corresponds to a factor of 100.

Therefore, based on current knowledge the following can be said:

When used properly, the risk of hazards or injury to humans by radio waves used in Bluetooth® technology can be ruled out.

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Glossary

Adaptive Frequency Hopping (AFH)

The adaptive frequency process “Adaptive Frequency Hopping” (AFH) is a refinement of the FHSS and is used to temporarily “jump over” defective or busy portions of the entire available frequency band and switch to other channels. See also “FHSS”

Authentication

Authentication is a process for testing the identity transmitted by a communication partner.

Bit error rate (BER)

Generally: Frequency of bit errors in the data transmission.

Bluetooth® context: Information in percentage on recognized bit errors during

baseband transmissions. As a rule, packets recognized as defective can be automatically repaired. If this is not possible, the defective data is automatically discarded.

Channel See Transmission Channel

CoD (Class of Device)

The Bluetooth® Class-of-Device (CoD) is a 24-bit field indicating to which standard type of device (for example, mobile telephone or handsfree set)

Bluetooth® devices belong. In addition to standard types, manufacturer specific

types can also be used.

Cycle time The cycle time is the rate at which a cyclic process is repeated or the time between two sequential starting points of a cyclic process, e.g. during the updating of cyclic process data between Bluetooth® devices connected wirelessly.

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Data exchange

Transmission of data between communication partners.

Device Name

The Bluetooth® name of a device. This name can be queried by other Bluetooth® devices via a radio link.

DHCP (Dynamic Host Configuration Protocol)

This protocol permits automatic configuration of the network for a computer, and also assigns addresses or sets parameters centrally. The DHCP server uses a fixed IP address pool for automatically assigning random, temporary IP addresses to networked computers (Clients), thus saving considerable configuration work in large networks. The client also obtains other information, such as the gateway address (router) and the IP address of the name server (DNS).

Diagnostics Diagnostic information provides information on the system status, particularly on disturbances or error conditions.

ETHERNET

Specifies a Local Area Network (LAN), which was developed by Xerox, Intel and DEC in the 70's. The bus access process takes place according to the CSMA/CD method.

Frequency Hopping Spread Spectrum (FHSS)

Generally: The frequency hopping process known as “Frequency Hopping Spread Spectrum” (FHSS) involves the division of a frequency range into sub-ranges, between which the data transmission then alternates. This improves co-existence with other networks and provides additional tapping protection and strength against narrow band disturbing influences.

Bluetooth® context: subdivision of the wireless channel into 79 subchannels. Each

time, after transmission of a packet, the current sub-channel is changed. This may occur up to 1600 times per second.

Gateway

Device for connecting two different networks, performs the translation between differing protocols..

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Inquiry

An “Inquiry” (request/information), in Bluetooth® technology, is a process in which Bluetooth® devices within range are sought.

ISM (Industrial, Scientific, and Medical Band)

ISM bands (“Industrial, Scientific, and Medical Band”) are frequency bands that can be used license-free with the observation of certain criteria. In addition to

Bluetooth®, other wide-spread wireless technologies such as WLAN use the ISM

band at 2.45 GHz according to IEEE 802.11.

Link Quality The device indicates the current radio link quality level as a percentage. Link quality of 95 % denotes an excellent link; 75% and greater indicates a good link; 50 % and greater signals a mediocre link, while any value below 50% represents a poor link.

ETHERNET Gateway

Media Access Control Identification (MAC ID)

The “Media Access Control Identification” (MAC ID) of a device is hardware address. Bluetooth® MAC addresses allow worldwide unique identification of a specific Bluetooth® wireless adapter. The WEG uses the same MAC ID for identification at ETHERNET interface as it does for identification at the Bluetooth® interface.

Packet

For this module: A data/wireless packet consists of user data and header data that are transmitted together.

PAN (Personal Area Network)

The PAN (Personal Area Network) is a specific Bluetooth® profile. A PAN of Bluetooth® devices is called a piconet.

Peer-to-Peer Peer-to-peer denotes networks containing computers with equal authorization privileges, without any centralized access control. A server is not required here, as the subscribers exchange data directly with one another and can mutually access resources that are provided.

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Roaming

Roaming denotes the capability of a radio communications network user to automatically dial into alternate radio networks for sending and receiving data.

Received Signal Strength Indication (RSSI) The RSSI is an algorithm for determining the signal strength between wireless participants. RSSI values allow, for example, the diagnosis of distances between wirelessly connected devices that are too small or too large. An RSSI value of 0 indicates that the reception signal is in the optimal range; a negative value indicates poor reception, while a positive value indicates that the devices are located very near to one another.

Signal strength The signal strength is an indicator of reception quality. The higher the signal strength, the better the reception.

Subnet A subnet is a logical division of a network.

Subnet mask Subnet masks can be used to manipulate the address ranges in the IP address area in reference to the number of sub nets and hosts. A standard subnet mask is, for example 255.255.255.0.

Switch Switches are comparable to bridges, but with several outputs. Each output uses the full ETHERNET bandwidth. Each output uses the full ETHERNET bandwidth. A switch activates a virtual link between an input and an output port for transmission of data. Switches learn which nodes are connected and filter the information transmitted over the network accordingly.

Transmission channel

A transmission channel is a mechanism or resource that enables data transmission over space or time.

WEG

Wireless ETHERNET gateway

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List of Figures

Figure 1: Bluetooth® transmission between 2 WEGs ............................................ 13

Figure 2: View ....................................................................................................... 14

Figure 3: Marking on front of device .................................................................... 15

Figure 4: Marking on bottom ................................................................................ 15

Figure 5: Nameplate on back/side ......................................................................... 15

Figure 6: Connections at bottom of device ........................................................... 16

Figure 7: Aligning the device ................................................................................ 17

Figure 8: Antenna diagram – Horizontal 2.450GHz ............................................. 18

Figure 9: Antenna diagram – Vertical 2.450GHz ................................................. 18

Figure 10: Display elements .................................................................................. 19

Figure 11: Operating element ................................................................................ 20

Figure 12: Drilled holes for attaching the WEG ................................................... 26

Figure 13: Connecting the WEG ........................................................................... 27

Figure 14: Mode membrane button and status LEDs ............................................ 30

Figure 15: Flow chart ............................................................................................ 34

Figure 16: WBM Configuration page ................................................................... 37

Figure 17: “Basic” – “Advanced” modes .............................................................. 38

Figure 18: View of panel in the “Advanced” mode .............................................. 38

Figure 19: WBM configuration page – “System Overview” section .................... 39

Figure 20: WBM configuration page – “Network” section .................................. 41

Figure 21: WBM configuration page – “Bluetooth” section ................................. 43

Figure 22: WBM configuration page – “Miscellaneous” ...................................... 49

Figure 23: "Output" text dialog window for panel interface ................................. 50

Figure 24: WEG-WEG bridge ............................................................................... 53

Figure 25: Traveling automation station ............................................................... 54

Figure 26: Range and limiting of transmitting power ........................................... 62

Figure 27: “Adaptive Frequency Hopping” (AFH) with WLAN example ........... 63

Figure 28: AFH with Bluetooth® example ............................................................ 63

Figure 29: AFH with Bluetooth® and WLAN example ........................................ 64

Figure 30: Bluetooth® with AFH, but without “Channel blacklisting” ................. 64

Figure 31: Bluetooth® with AFH and “Chanel blacklisting” ................................ 65

Figure 32: Fresnel zone ......................................................................................... 67

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List of Tables

Table 1: Revision History ........................................................................................ 5

Table 2: Number notation ........................................................................................ 8

Table 3: Font conventions ....................................................................................... 8

Table 4: Legend for the “View” figure ................................................................ 14

Table 5: Legend for the “Connections at bottom of device” figure ...................... 16

Table 6: Power supply, M12 Connector on Device .............................................. 16

Table 7: System connection, M12 Socket on Device ............................................ 17

Table 8: Legend for the “Display elements” figure .............................................. 19

Table 9: Technical Data – Device Data ................................................................. 21

Table 10: Technical Data – ETHERNET Interface ............................................... 22

Table 11: Technical Data – Bluetooth® Interface .................................................. 22

Table 12: Technical Data – Power Supply ............................................................ 22

Table 13: Selection of Installation Location ......................................................... 25

Table 14: Default Settings ..................................................................................... 29

Table 15: Autoconfiguration Procedures .............................................................. 30

Table 16: Overwriting of Configuration ............................................................... 32

Table 17: WBM Configuration Page – “System Overview” Section ................... 40

Table 18: WBM Configuration Page – “Network” section ................................... 41

Table 19: WBM Configuration Page – “Bluetooth” > “General” ......................... 43

Table 20: WBM Configuration Page – “Bluetooth” > “Security” ........................ 44

Table 21: WBM Configuration Page – “Bluetooth” > “Roaming” ....................... 45

Table 22: WBM Configuration Page – “Bluetooth” > “WLAN coexistence” ...... 46

Table 23: WBM Configuration Page – “Bluetooth” > “Connection” ................... 48

Table 24: WBM Configuration Page – “Miscellaneous” Section ......................... 49

Table 25: AT Commands ...................................................................................... 51

Table 26: Common Configuration of WEGs ........................................................ 55

Table 27: Configuration of Access Point WEGs ................................................... 56

Table 28: Configuration of the WEG with Changing Link Partners (Roaming) .. 57

Table 29: One or More WEGs at a Generic Bluetooth® NAP............................... 58

Table 30: Cycle Times between Master and Smaller Network Consisting of

Slave Nodes ................................................................................................. 59

Table 31: Mandatory Timeout ............................................................................... 60

Table 32: Radii to be kept clear ............................................................................. 68

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WAGO Kontakttechnik GmbH & Co. KG

Postfach 2880 • D-32385 Minden Hansastraße 27 • D-32423 Minden Phone: +49/5 71/8 87 – 0 Fax: +49/5 71/8 87 – 1 69 E-Mail: info@wago.com

Internet: http://www.wago.com

WAGO 758-915, WAGO-I/O-SYSTEM 758 Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

1 Notes about this Documentation

1.1 Validity of this Documentation

1.2 Revision History

1.3 Copyright

1.4 Symbols

1.5 Number Notation

1.6 Font Conventions

2 Important Notes

2.1 Legal Bases

2.1.1 Subject to Changes

2.1.2 Personnel Qualification

2.1.3 Use in Compliance with Underlying Provisions

2.2 Special Use Conditions for ETHERNET Devices

2.3 Technical Condition of Specified Devices

2.4 Storage, Assembly and Transport

2.5 Safety Advice (Precautions)

3 Device Description

3.1 View

3.2 Labeling

3.3 Connectors

3.3.1 Pin Assignment for Power Supply

3.3.2 Pin Assignment for System Connection

3.3.3 Antenna

3.4 Display Elements

3.5 Operating Elements

3.6 Technical Data

3.6.1 Device Data

3.6.2 ETHERNET Interface

3.6.3 Bluetooth® Interface

3.6.4 Supply

3.7 Approvals

4 Mounting

4.1 Selecting the Installation Location

4.2 Fixing

5 Connect Devices

5.1 Connection

6 Commissioning

7 Configuration

7.1 Default settings

7.2 Configuration Using the Mode Membrane Button

7.2.1 Overview of Autoconfiguration Procedures

7.2.2 Selection and Activation of an Autoconfiguration Procedure

7.3 Configuration using the Web-based Management System (WBM)

7.3.1 Accessing the Web-based Management System

7.3.2 “Basic” – “Advanced” Modes

7.3.3 “System Overview” Section

7.3.4 “Network” Section

7.3.5 “Bluetooth” Section

7.3.5.1 Bluetooth: General

7.3.5.2 Bluetooth: Security

7.3.5.3 Bluetooth: Roaming

7.3.5.4 Bluetooth: WLAN Coexistence

7.3.5.5 Bluetooth: Connection

7.3.6 “Miscellaneous” Section

7.3.6.1 Execution of AT Commands

8 Appendix

8.1 Sample Configurations

8.1.1 Preparation

8.1.2 WEG-WEG Bridge

8.1.2.1 Configuration of the 1st WEG Using the Mode Membrane Button

8.1.2.2 Configuration of the 2nd WEG Using the Mode Membrane Button

8.1.3 Roaming Among WEGs

8.1.3.1 Common Configuration of WEGs

8.1.3.2 Configuration of Access Point WEGs

8.1.3.3 Configuration of a WEG with Changing Link Partners (Roaming)

8.1.3.4 Roaming with Several Devices

8.1.4 One or More WEGs at a Generic Bluetooth® NAP

8.2 Time Response

8.2.1 Time response example: PROFINET

8.3 Data Rate

8.4 Coexistence

8.4.1 Basics

8.4.2 Space-Division Multiplex (Adaptation of Transmitting Power)

8.4.3 Frequency Multiplexing (Switching of Channels with AFH and FHSS)

8.4.4 Low Emission ModeTM