DE102013202564A1 - Method for parameterizing slave-bus station, involves detecting optical code on slave-bus station with optical code reader of service unit, where identification of master-bus station is determined with help of code - Google Patents

Abstract

The method involves detecting an optical code (6) on a slave-bus station with an optical code reader of a service unit (4), where the identification of a master-bus station is determined with the help of the code. The identification of the slave-bus station is transmitted from the service unit to the master-bus station over a radio link (7). The parameter values of the slave-bus station are transferred from the master-bus station to service unit over the radio link.

Description

The invention relates to a method for parameterizing a bus subscriber connected to a fieldbus of automation technology in accordance with the features of the preamble of patent claim 1.

In particular, the invention relates to bus subscribers for a two-wire bus. The preferred bus system is the actuator-sensor interface, AS-Interface or AS-i bus. The associated fieldbus components are manufactured and distributed by the applicant. The invention is also suitable for other bus systems.

These bus systems are controlled by bus controllers, which in turn are operated via a keypad and have a display for displaying information relevant to the operator. Often, you also have an Ethernet port for access through a parent network or the Internet.

This can be done via cable or wireless via a wireless local area network (W-LAN). The higher-level networks can be PROFIBUS or PROFINET (Process Field Network).

On the display, the operator can u. a. also display the current IP address, the serial number, the fieldbus address or the hardware status of the bus station.

In many cases, the displayed information is needed at a different location, for example, when parameterizing a newly connected bus station (slave), for configuration in a higher-level control unit or for fault diagnosis. In these cases, the operator must remember or note the displayed information.

From the DE 101 53 625 A1 It is known to attach to the operation or the maintenance of a system information in the form of coded labels on or in a machine or system. For reasons of safety, coding is advantageously carried out in the form of a bar code or as a two-dimensional code (2-D code), for example in the form of a quick-response code (QR code).

From the DE 10 2005 041 862 A1 is known to communicate via a radio link with the field devices. For this purpose, the field devices carry a scannable identification and the operating unit a reading unit for reading the identification of the field device and means for establishing a radio link to the field device in dependence on the read identification of the field device.

Since field devices can also be arranged close to each other, the optical scanning of a barcode and with a larger amount of data of a QR code, because of the unique assignment better than the known near field transmission, especially since almost all modern mobile phones are equipped with a camera.

The identification must be either factory-issued or retrofitted to the housing during field device installation.

The disadvantage here either the work associated with the subsequent marking work or the organizational effort in the data management and tracking the path of each device.

The object of the invention is to overcome the mentioned disadvantages of the prior art. The parameterization should be faster, easier and more interference-proof. In addition, the control effort is to be reduced by the operator.

This object is achieved with the characterizing features of claim 1. The dependent claims relate to the advantageous embodiment of the invention.

The essential idea of the invention is to generate the desired information dynamically, wherein for security reasons, but also because of the higher transmission capacity, a two-dimensional code, in particular a QR code should find application. This can not be mounted in a known manner as a sticker or label on the system, but is generated according to the invention during operation on a display. The displayed code is again recorded in a known manner with a portable service device, for example with the camera of a mobile phone, decoded and displayed to an operator on the display of the service device and further processed.

The advantage is that current, the current state of the system information, such as the current IP address, can be transmitted quickly and safely. This facilitates the operator's work by eliminating the time-consuming and error-prone notation of alphanumeric strings, such as an address code or an IP address.

The invention will be explained in more detail with reference to the drawing.

1 shows an inventive arrangement for an AS-i fieldbus. The slave 1 is from the fieldbus 2 powered and from the master 3 supervised. Both the slave 1 as well as the master 3 have graphics-capable displays 5 for displaying a two-dimensional optical code 6 , preferably a QR code. The display of the code can be activated by an error message or by the operator and with the optical code reader of a service device 4 for example, the camera 8th of the service device 4 , here a mobile phone, to be included.

• – der optische Code 6 am Slave 1 mit dem optischen Codeleser 8 erfasst,
• – die Kennung des Masters 3 anhand des Codes 6 ermittelt und ggf. angezeigt,
• – die Kennung des Slaves 1 über die Funkverbindung 7 zum Master 3 übertragen,
• – Parameter des Slaves 1 über Funk 7 vom Master 3 zum Servicegerät 4 übertragen,
• – geänderte Parameter vom Bediener in das Servicegerät 4 eingegeben,
• – Parameter vom Servicegerät 4 zum Master 3 über Funk 7 übertragen und
• – Parameter vom Master 3 zum Slave 1 über den Feldbus 2 übertragen.

The code 6 also contains information to uniquely identify the master 3 and possibly error or status messages of the fieldbus participant 1 (Slave). This information is provided by the service device 4 decoded and displayed to the operator. In addition, a wireless connection 7 to master 3 be prepared and in dialogue using this wireless connection 7 directly or via internet with the master 3 be communicated to perform the necessary maintenance. In particular, be

• - the optical code 6 at the slave 1 with the optical code reader 8th detected,
• - the ID of the master 3 by the code 6 determined and displayed if necessary,
• - the identifier of the slave 1 over the radio connection 7 to the master 3 transfer,
• - Parameters of the slave 1 via radio 7 from the master 3 to the service device 4 transfer,
• - changed parameters from the operator to the service unit 4 entered
• - Parameters from the service device 4 to the master 3 via radio 7 transferred and
• - Parameters from the master 3 to the slave 1 over the fieldbus 2 transfer.

This shortens maintenance time because the operator is on site at the bus station 1 can not and must not record or control data. In addition, the error rate decreases. Maintenance task can be done quickly and error-free in this way.

Advantageously, the master 3 also have a graphics-enabled display, allowing for maintenance on or near the master 3 can be done in the manner described.

• – Erfassen des optischen Codes 6 am Slave-Busteilnehmer 1 mit dem optischen Codeleser 8 des Servicegerätes 4
• – Ermitteln der Kennung des Master-Busteilnehmers 1 anhand des Codes 6
• – Übertragung der Kennung des Slave-Busteilnehmers 1 vom Servicegerät 4 zum Master-Busteilnehmer 3 über die Funkverbindung 7
• – Übertragung von Parameterwerten des Slave-Busteilnehmers 1 vom Master-Busteilnehmer 3 zum Servicegerät 4 über die Funkverbindung 7
• – Eingabe von geänderten Parameterwerten in das Servicegerät 4
• – Übertragung von Parameterwerten vom Servicegerät 4 zum Master-Buscontroller 3 über die Funkverbindung 7
• – Übertragung der Parameterwerte vom Master-Busteilnehmer 3 zum Slave-Busteilnehmer 1 über den Feldbus 2.

The invention relates to a method for parameterizing a slave bus subscriber 1 who is attached to a fieldbus 2 is connected to a master bus subscriber 3 and a service device 4 where the slave bus participant 1 a display 5 to display an optical code 6 with an identifier for unambiguous identification of the slave bus subscriber 1 and the master bus participant 3 has, wherein the master bus subscriber 3 and the service device 4 over a radio connection 7 communicate with each other and the service device 4 an optical code reader 8th contains, wherein the inventive method comprises the following steps:

• - Acquisition of the optical code 6 at the slave bus participant 1 with the optical code reader 8th of the service device 4
• - Determining the identifier of the master bus device 1 by the code 6
• - Transmission of the identifier of the slave bus station 1 from the service device 4 to the master bus participant 3 over the radio connection 7
• - Transmission of parameter values of the slave bus station 1 from the master bus participant 3 to the service device 4 over the radio connection 7
• - Entry of changed parameter values into the service device 4
• - Transmission of parameter values from the service device 4 to the master bus controller 3 over the radio connection 7
• - Transmission of the parameter values from the master bus user 3 to the slave bus participant 1 over the fieldbus 2 ,

In an advantageous embodiment, they contain the display 5 displayed codes information about the hardware state of the bus station 1 ,

Preferably, the fieldbus 2 a two-wire bus, in particular an AS-i bus.

LIST OF REFERENCE NUMBERS

1

Slave fieldbus

2

Fieldbus for automation technology, 2-wire bus, 2-wire bus, AS-i bus

3

Master bus users

4

Service device, maintenance device with an optical code reader 8th

5

Graphics-compatible display on the slave fieldbus participant 1 and at the master 3

6

Optical code, preferably a QR code, on the slave 1 and master 3

7

Radio connection, mobile phone connection

8th

Optical code reader, camera of a mobile communication device

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10153625 A1 [0007]
• DE 102005041862 A1 [0008]

Claims (3)

Method for Parameterizing a Slave Bus Subscriber ( 1 ) connected to a field bus ( 2 ) is connected to a master bus subscriber ( 3 ) and a service device ( 4 ), whereby the slave bus subscriber ( 1 ) a display ( 5 ) for displaying an optical code ( 6 ) with an identifier for unambiguous identification of the slave bus subscriber ( 1 ) and the master bus participant ( 3 ), wherein the master bus subscriber ( 3 ) and the service device ( 4 ) via a radio link ( 7 ) and the service device ( 4 ) an optical code reader ( 8th ), characterized by the following method steps: - detecting the optical code ( 6 ) on the slave bus participant ( 1 ) with the optical code reader ( 8th ) of the service device ( 4 ) - Determining the Identifier of the Master Bus Subscriber ( 1 ) using the code ( 6 ) - transmission of the identifier of the slave bus participant ( 1 ) from the service device ( 4 ) to the master bus participant ( 3 ) via the radio link ( 7 ) - Transmission of parameter values of the slave bus device ( 1 ) from the master bus user ( 3 ) to the service device ( 4 ) via the radio link ( 7 ) - input of changed parameter values into the service device ( 4 ) - transmission of parameter values from the service device ( 4 ) to the master bus controller ( 3 ) via the radio link ( 7 ) - Transmission of the parameter values from the master bus user ( 3 ) to the slave bus subscriber ( 1 ) via the fieldbus ( 2 ). A method according to claim 1, characterized in that the from the display ( 5 ) displayed code ( 6 ) information about the hardware state of the bus subscriber ( 1 ) contains. Method according to one of the preceding claims, characterized in that the fieldbus ( 2 ) is a two-wire bus, in particular an AS-i bus.

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