95 results about "PROFINET" patented technology

The invention discloses a wafer polishing laser interference closed-loop pressure control method, and relates to the technical field of semiconductor manufacturing, and the method comprises the following steps: S1, triggering an automatic measurement program after a ceramic plate and a wafer are overturned; s2, driving a laser interference measuring head to perform non-contact scanning on T2 / T4 point positions of the wafer through a six-axis mechanical arm positioning system to obtain thickness distribution data; s3, fitting the thickness distribution data by adopting a Zernike polynomial to generate a three-dimensional distribution diagram, and calculating a pressure correction amount based on a process dynamic model and a pressure prediction model constructed by a support vector machine regression algorithm; s4, detecting a data outlier in real time through an exception handling module, and triggering an equipment protection strategy when the deviation exceeds a set threshold value; and S5, a pressure control instruction is transmitted to the polishing head through the PROFINET bus by means of the PLC. Through non-contact laser interference measurement, the laser interference technology is applied to thickness detection of the polished wafer for the first time, the single measurement time is shorter than 20 seconds, and the detection efficiency is remarkably improved.

The invention discloses a multifunctional remote monitoring system for safe operation of chemical plant electrical equipment, which relates to the technical field of remote monitoring of chemical plant electrical equipment and comprises a data acquisition unit, an edge calculation unit, a self-adaptive communication unit, an intelligent diagnosis unit and a remote monitoring unit. The data acquisition unit is used for acquiring valve state, liquid level, temperature and pressure signals in real time; the edge computing unit is integrated in a programmable logic controller (PLC) and is used for data preprocessing and local analysis; the adaptive communication unit is used for optimizing the data transmission priority based on the existing industrial Ethernet protocol Profinet / EtherNet / IP; the intelligent diagnosis unit is used for equipment health state evaluation and fault prediction; the remote monitoring unit realizes visualization and remote control through an upper computer; the programmable logic controller PLC is AB 1756-L71 and is used for integrating an edge computing unit to complete tasks of data preprocessing and local analysis.

The invention discloses an industrial field network security honeypot simulation and threat trapping system, which comprises an industrial control system, the industrial control system comprises an industrial protocol simulation honeypot engine, an intelligent dynamic configuration module, a context awareness analysis module, an integrated response and blocking module, a threat intelligence and situation awareness platform, a physical layer defense subsystem and a compliance report generation module. The industrial protocol simulation honeypot engine is arranged at a key position in an industrial control system, the industrial protocol simulation honeypot engine is used for simulating communication behaviors of Modbus TCP / IP, OPC UA and Profinet, the industrial protocol simulation honeypot engine dynamically adapts to equipment start and stop and protocol parameter changes, the industrial protocol simulation honeypot engine simulates an industrial environment, and the industrial control system is connected with the industrial control system. Intrusion and attack behaviors for the industrial system are induced and captured. Through cooperation of multiple modules, safety protection of the industrial control system is comprehensively improved, risks are reduced, stable operation is ensured, compliance requirements are met, and competitiveness is enhanced.

The invention belongs to the field of industrial communication, and discloses a data transmission method and system, an AutBus converter and a medium, and the method comprises the steps: receiving Profinet protocol data sent by a source device through a first converter, and packaging the Profinet protocol data into a target data packet of an AutBus protocol according to an identifier of a second converter described in a pre-stored mapping table and a physical address of a target device; and verifying the target data packet according to the pre-stored mapping table by using the second converter, and forwarding the target data packet to the target equipment after the verification is passed. The identification of the second converter, the physical address of the target equipment and the Profinet protocol data in the pre-stored mapping table are packaged into the target data packet of the AutBus protocol, so that the Profinet protocol data are loaded by using the AutBus protocol, the replacement of the Profinet equipment is reduced, and the hardware cost is saved.

The present invention discloses a PROFINET distributed IO synchronization method, comprising configuring a scan lock timer T for an interface module and each IO module respectively. tim , all modules T tim Have the same target reload cycle time and target synchronization lock offset time; each time the synchronization pulse edge arrives, according to each module T tim The deviation between the actual synchronization lock offset time and the target synchronization lock offset time dynamically adjusts the T of each module tim The reload cycle count value is used to realize each module T tim The synchronization between modules is tim The synchronization period is calculated and determined in the overload event and the synchronization pulse edge event, and the synchronization of input and output is realized. The present invention is easy to implement with FPGA or ARM, MCU peripherals, and can effectively improve the synchronization accuracy between the PROFINET communication interface module and the IO modules in each slot, and realize the high-precision synchronization of the input and output of the IO modules in each slot.

The invention relates to a data-driven digital twinning virtual model construction and entity synchronization method, which is used for constructing an intelligent production line digital twinning system by analyzing equipment, process flow and data interaction requirements of an actual production line and utilizing an existing five-dimensional model framework. Three-dimensional modeling is carried out on equipment, attributes of rigid bodies, collision bodies and the like, kinematic pairs and constraint conditions are set, physical and virtual mapping is completed, and a virtual model capable of reflecting characteristics of a production line is constructed. Then, an entity communication and data acquisition framework is built, production line equipment is accessed, and a twin database is built by utilizing Profinet or MODBUS TCP and other communication and an OPC UA server; and collecting and processing data according to a preset frequency and transmitting the data into a database. And finally, updating the state of the virtual model according to rules through a data driving engine, and sending an instruction by a human-computer interface through analysis and feedback, thereby realizing virtual-real synchronization and control of the production line, solving the traditional problems, improving the production efficiency and reducing the cost.

The invention provides a dynamic redundancy transmission method and system based on EtherCAT to Profinet, and a storage medium, and the method comprises the steps: analyzing a data frame through an EtherCAT protocol controller, and determining an operation priority according to an operation instruction; according to the operation priority, storing the operation instruction in a corresponding interrupt storage area or polling storage area; extracting a second instruction based on the priority according to a preset instruction extraction mechanism, and mapping and converting the second instruction into a corresponding Profinet protocol data frame; based on the link state of the feedback instruction of the Profinet protocol data frame, if it is judged that the link is abnormal, starting a redundant transmission port; according to the method, key instructions are processed preferentially through instruction double-area storage, and the instruction real-time requirement is met; and double bottlenecks of industrial network bandwidth and reliability are solved through a protocol mapping table.

The invention relates to the technical field of industrial internet, in particular to an SDN (Software Defined Network) multi-access interconnection architecture system for a complex industrial scene. Comprising a multi-access field layer module, a multi-access service flow control layer module, an SDN (Software Defined Network) exchange layer module and a unified management and control platform, an extensible protocol rule base is arranged in the multi-protocol analysis interconnection terminal, dynamic analysis and fusion of 10 + industrial protocols such as Modbus, Profinet and EtherCAT are supported, protocol islands are eliminated, hot plug updating of protocol description files is supported, and newly-added protocols do not need to be upgraded in a shutdown mode; the semantic mapping engine converts original data into standardized semantic information through a knowledge graph to realize cross-protocol data intercommunication; compared with a traditional gateway which needs to deploy independent equipment for each type of protocols, the method can process multiple protocols, the hardware cost is reduced by 60%, and the deployment efficiency is improved by three times.

The present application relates to PROFINET industrial Ethernet, and in particular to a method, device and storage medium for improving a PROFINET master-slave chain reconstruction process in an MRP ring network, monitoring the state of an MRP redundant ring network in real time, and obtaining a DCP_req message sent by a PN master station in the MRP redundant ring network; caching the obtained DCP_req message into a message buffer through an MRP master switch in the MRP redundant ring network; in response to monitoring that the state of the MRP redundant ring network changes from a closed-loop state to an open-loop state, detecting whether the message buffer is empty; in response to determining that the message buffer is not empty, sending the DCP_req message to a PN slave station through the MRP master switch; the service chain reconstruction time between PN master and slave stations can be greatly shortened, from several seconds to tens to hundreds of milliseconds; and the reliability and availability of the PROFINET network can be further improved.

Method for controlling an automated I / O device system for executing a production process with at least one production parameter (P), wherein the I / O device system comprises an I / O controller (3) with control software and at least one I / O field device (1), which are interconnected via a PROFINET network with a gateway (2) as a software and / or hardware interface for communication over the network, wherein the gateway (2) is an IO-Link master gateway, wherein the method for integrating the field device (1) into the I / O device system comprises: • providing a description file in gsdml format • executing configuration software (4), in particular an engineering tool, and scanning for further I / O field devices (1) via the network • recognizing the I / O field device (1) by the configuration software • providing a configuration database (9, 10) which includes at least one IODD of the field device (1).• Providing a support tool (5) for generating an application-specific description file, which forms the interface between configuration software (4) and the gateway (2), • wherein the support tool (5) includes a configuration module for accessing and configuring the I / O field device (1), • wherein the support tool (5) uses a data buffer (7) as a buffer during communication with the I / O field device (1) and / or as a buffer for parameters (P) for generating the application-specific description file, • Generating an application-specific description file in gsdml format via the support tool (5), wherein the support tool (5) is a standalone, computer-implemented form of a tool with which the description file to be used application-specifically by the support tool (5) is generated by supplementing the description file in gsdml format,i. Assigning an IODD according to parameter (P) of the IO field device (1) and according to production parameter (P); ii. Adding at least one parameter (P) and the article number from the IODD to the application-specific description file; iii. wherein the support tool (5) assigns the IODD to the field device (1) and accesses an internal configuration database (9) or an external configuration database (10) via an Ethernet connection (11) for this purpose; • Transferring the application-specific description file as a gsdml file to the IO controller (3) and the control software via the configuration software (4); • Executing the control software to control the IO field device (1); • Using a configuration and optimization tool, exporting the application-specific description file as an AML file.

The application discloses a wafer polishing laser interference closed-loop pressure control method, and relates to the technical field of semiconductor manufacturing, and comprises the following steps: S1: a ceramic plate is triggered to automatically measure a program after being turned over with a wafer; S2: a laser interference measurement head is driven by a six-axis mechanical arm positioning system to non-contact scan T2 / T4 points of the wafer, and thickness distribution data is acquired; S3: a Zernike polynomial is adopted to fit the thickness distribution data to generate a three-dimensional distribution graph, and a pressure correction amount is calculated based on a pressure prediction model constructed by a process kinetics model and a support vector machine regression algorithm; S4: an abnormal processing module is used to detect data outliers in real time, and a device protection strategy is triggered when a deviation exceeds a set threshold; and S5: a pressure control instruction is transmitted to a polishing head by a PLC controller through a PROFINET bus. By means of non-contact laser interference measurement, the laser interference technology is applied to wafer thickness detection after polishing for the first time, and single measurement time is less than 20 seconds, so that the detection efficiency is significantly improved.

The invention relates to the technical field of automobile part optimization, in particular to a gradient iterative optimization method for automobile stamping part springback compensation, which can realize real-time closed-loop control, and compresses deviation response time from a minute level of a traditional method to a millisecond level (less than 2ms) by integrating 800Hz high-frequency monitoring and PROFINET real-time communication technologies, so that the error response time is reduced, and the error response time is reduced. And on-line control over the whole process of punching, detecting and adjusting is achieved. And dynamic calibration of a forming force fluctuation threshold value is combined with self-adaptive adjustment of the friction coefficient, so that the production stability (CPK value) is improved from 1.0 to 1.67, the production stability is remarkably improved, and the service life of the mold is remarkably prolonged.

The utility model discloses an embedded information safety protection module of a frequency converter, which is embedded into the frequency converter and comprises an MCU (Microprogrammed Control Unit) processor, a CAN (Controller Area Network) communication module connected with the MCU processor through a CAN communication circuit, and a Profinet communication module connected with the MCU processor through a Profinet communication circuit, the security authentication chip is connected with the MCU processor through an encryption chip communication circuit; and the 24V-to-5V power supply module is connected with the MCU processor through a 24V-to-5V communication circuit. The frequency converter embedded information security protection module prevents a third party from skipping the accessory market through reverse frequency converter software.

The application provides a converter tilting control system, relates to the technical field of iron and steel plants, and comprises a driving module, a Profinet communication networking module, a control module, a monitoring module, a fault diagnosis module and a safety protection module. The application provides a converter tilting control system, adopts a one master and three slave mode, and is matched with torque / speed closed-loop control of a Siemens S120 frequency converter, the master motor provides reference driving, the slave motor accurately follows torque output, in combination with a PLC dynamic compensation algorithm, can correct the speed difference and the torque difference in real time, is favorable for prolonging the service life of components, through a tilting trajectory planning module driven by an LSTM neural network, can replace a traditional fixed curve, generates an optimal trajectory in real time based on the liquid level, the composition, the temperature and the process type of molten steel, adapts to the lining state of different furnace campaigns, and through dynamic adjustment of the trajectory, can avoid the molten steel shaking risk, so as to improve the molten steel yield and the product quality stability.

The invention discloses a method for eliminating network interference of a dry quenching control system, which comprises the following steps of: installing an Ethernet module on a PLC (Programmable Logic Controller) rack of the dry quenching control system, and accessing all external data exchange nodes into the Ethernet module; internal data of the control system are communicated through a Profinet network; a circulating fan sudden stop signal program segment is modified, network abnormity filtering logic is added, and when substation communication is interrupted, sudden stop signals are forbidden to be automatically conducted; remaking a Profinet network cable, and adjusting a network topology structure, so that a data reading path of an operation station is independent of a substation communication link; after hardware configuration, network communication programs and IP address allocation are updated, network pressure testing and interlocking logic verification are carried out, the Ethernet module is installed on the PLC rack, physical isolation of an internal network and an external network of the dry quenching control system is achieved, the influence of external disturbance on Profinet substation communication is effectively blocked, the substation loss rate is reduced to 0 from the original level, and the system reliability is improved. And the stability of network operation is greatly improved.

The invention discloses an automatic feed weighing and conveying system and method. The system comprises a finished product warehouse unit, a conveying unit, a storage warehouse unit and a control system. The finished product warehouse unit comprises 40 finished product warehouses, and a pneumatic gate at the bottom is connected with a warehouse-out scraper; the conveying unit is formed by connecting a delivery scraper, a conveying scraper and an elevator; the storage bin unit comprises 16 storage bins, and a bottom weight detection device communicates with the PLC; and the control system is connected with the distributed IO module through PROFINET to control the field equipment. The pneumatic gate, the motor and the like are provided with specific wiring terminals, circuit breakers and protection switches, the weighing sensor communicates through a MODBUSRTU protocol, and full-bin pre-alarm and shutdown alarm are set. The transmission method comprises the steps of variety matching, equipment sequence starting, weight control path switching and current monitoring fault processing, and the variety matching module stores the mapping relation between the feed and the finished product warehouse. According to the system, automatic feed weighing and conveying are achieved, and efficiency and reliability are improved.

The invention discloses a mobile device control system and method based on protocol conversion and wireless communication, the system comprises a communication conversion gateway, a remote communication module, a PLC controller and a GSD file configuration module, the method comprises the following steps: installing the communication conversion gateway on an AGV trolley, and using a built-in Modbus-TCP protocol parser to carry out protocol conversion on the AGV trolley; the Modbus-TCP protocol is analyzed into data in an XML (Extensible Markup Language) format; and generating a PN protocol message according to the XML format data obtained by analysis. According to the invention, efficient conversion between the Modbus-TCP and the Profinet protocol is realized through the communication conversion gateway, the problem of "protocol barriers" between different devices is solved, and the interoperability of the system is greatly improved; in combination with GSD file configuration, new equipment can be quickly accessed, and the flexibility and expandability of the system are remarkably enhanced; the optimized protocol conversion process and Profinet communication link greatly improve the response speed.

The invention discloses a multi-band collaborative optimization pico-base station system and method based on AI, and relates to the technical field of 5G communication. The system comprises a dual-band radio frequency module, an AI decision unit, an industrial protocol conversion unit and an intelligent power management module. The method comprises the following steps: acquiring signal data in real time, calculating an interference index and identifying an interference source type, and dynamically selecting a working frequency band and emission parameters by adopting a reinforcement learning model; meanwhile, an industrial protocol conversion function is integrated, native access of protocols such as Profinet / Modbus is supported, and power consumption is adjusted according to load changes. According to the invention, the defects of the existing pico-base station in the aspects of multi-band interference, industrial scene adaptation and energy consumption control are overcome, the coverage performance can be improved by 15-20%, and the interference processing response time is lt; the average energy consumption is reduced by 25%, and the system is particularly suitable for complex scenes such as intelligent manufacturing and transportation hubs.

The utility model relates to the technical field of photovoltaic glass deep processing, in particular to a photovoltaic glass deep processing connecting line distributed control system which comprises a plurality of independent conveying devices, each independent conveying device is provided with an integrated electric box, and the integrated electric box is connected with the photovoltaic glass deep processing connecting line distributed control system. And a driving controller, a signal acquisition module and a bus communication interface are arranged in the integrated electric box. Each independent conveying device is provided with one integrated electric box, the electric boxes and the devices are delivered together, only a power supply and a communication line need to be connected during field installation, the problems of low efficiency, poor expansibility and insufficient standardization in traditional centralized wiring are solved, the system adopts a distributed control framework, and the system is simple in structure and convenient to use. All the devices perform efficient communication and data transmission with the PLC controller through the integrated electric box, and the system can realize rapid and stable data exchange through the ASI and Profinet bus, so that coordinated work among the devices is ensured, and the overall working efficiency and accuracy of the production line are improved.

The utility model discloses a modular structure for multi-controller communication of a wind power plant, the wind power plant comprises a plurality of wind generating sets, and each wind generating set comprises a plurality of controllers. The external network profinet interface of the controller of one wind power generator set and the external network profinet interfaces of the controllers of other wind power generators in the wind power plant are located at different IPV4 addresses of the same network segment, and the multiple controllers located at the different IPV4 addresses of the same network segment are connected. According to the utility model, the fan plant-level communication is optimized, the fineness of single-machine control can be effectively improved, the self-adaptive control capability of the fan is enhanced, and the operation and maintenance cost is reduced.

The application discloses a kind of feed automatic weighing transmission system and method, system includes finished product warehouse unit, conveying unit, reserve warehouse unit and control system.Finished product warehouse unit contains 40 finished product warehouses, bottom pneumatic gate is connected to warehouse scraper;Conveying unit is composed of warehouse scraper, conveying scraper and hoist link;Reserve warehouse unit contains 16 reserve warehouses, bottom weight detection device is communicated with PLC;Control system is connected with distributed IO module control field equipment by PROFINET.Configuration specific wiring terminal, circuit breaker and protection switch for pneumatic gate, motor and the like, weighing sensor is communicated by MODBUSRTU protocol, and full warehouse early warning and shutdown alarm are provided.Transmission method includes variety matching, equipment sequence start, weight control path switching and current monitoring fault handling, and variety matching module stores the mapping relationship between feed and finished product warehouse.The system realizes feed automatic weighing transmission, improves efficiency and reliability.

The invention relates to a protocol conversion method for a single-pair Ethernet and a 5G / 5G-A network, and belongs to the technical field of communication networks. Aiming at heterogeneous interconnection requirements of a single-pair Ethernet and a 5G / 5G-A network, a Profinet protocol is carried on the single-pair Ethernet, and protocol conversion between heterogeneous networks is completed through strategy cooperation, protocol identification, mapping, packaging and other units. The method specifically comprises the following steps of: distributing exclusive 5G / 5G-A service quality flows for different Profinet flows by utilizing a core network strategy collaboration unit; capturing and identifying Profinet data by means of a protocol identification unit, marking the Profinet data, and forwarding the Profinet data to a 5G / 5G-A data mapping entry; real-time and priority mapping is carried out on the marked data based on the quality of service and a data radio bearer mapping unit; and encapsulating the Profinet data into a 5G / 5G-A message to be sent through the data encapsulation unit, or reversely de-encapsulating the Profinet data into a Profinet message. According to the invention, protocol conversion based on service quality maintenance between the single-pair Ethernet and the 5G / 5G-A network is realized, and end-to-end deterministic transmission of cross-network industrial real-time data is ensured.

The invention provides an input / output system to encode sensor data to be sent to a computing device for further processing whereby the data must not be subject to errors introduced in the transmittal process. Such sensor systems could be used to monitor and control operation of a maritime vehicle. The system comprises an input / output interface configured to receive sensor data, a safety processing function configured to encode the sensor data using an error detecting and / or correcting process and a communications interface configured to transmit the encoded sensor data to a network controller which is remote to the input / output system for further transmission through a communications network. The error detecting and / or correcting process may comprise a cyclic redundancy or parity check, providing three or more copies or sequential readings of the sensor data for redundancy or performing a mathematical function on the sensor data. The communications network may be MODBus, PROFISafe, PROFINET, RS485, RS422, or any other suitable serial bus, wired or optical network mechanisms.

The invention relates to an automatic feeding control system and a control method for a labeling machine, which are characterized in that an intelligent control system and a dynamic self-adaptive PID (Proportion Integration Differentiation) algorithm are additionally arranged, so that a traditional labeling machine is upgraded into intelligent equipment with autonomous sensing, accurate control and data tracing functions. A PLC + vision + servo modular architecture is adopted in hardware, hierarchical design and algorithm integration are achieved in software, and a real-time data interaction network is constructed through PROFINET and an industrial internet. Practical application shows that the labeling precision and efficiency can be remarkably improved, the labor cost and the defective product rate are reduced, and a feasible scheme is provided for intelligent upgrading of the manufacturing industry.

The present application discloses a hybrid power test control system for an aircraft engine, including: a fast switching device, which is respectively connected to the engine, generator, rectifier, and each load system circuit; an emergency protection load system, which is connected to the fast switching device circuit; a first and a second test system, which are respectively used for collecting and storing the state parameters of the engine and collecting and storing the state data of the generator, rectifier, and each load system and transmitting them to the electrical control system; a filter, which is used to suppress electromagnetic interference; a control system, which is respectively connected to the engine EEC and the electrical control system circuit; an electrical control system, which is respectively connected to the EEC, the control system, auxiliary equipment, the fast switching device, and each load system circuit; a PROFINET system network, which uses the PROFINET protocol for fast data exchange. The present application adopts a systematic design to avoid independent design defects, which can not only achieve the reliability of test control, but also greatly reduce the safety risk of the test.

A device includes a plurality of interfaces for Ethernet-APL-and PROFINET-based connection to field devices of an industrial plant, in particular a process or manufacturing plant, and includes an interface for PROFINET-based connection to a higher-level automation device of the industrial plant, wherein the device is configured to serve as a communication switch between the higher-level automation device and the field devices, where the device is further configured to serve as a PROFINET IO device in the context of the connection to the higher-level automation device, and to serve as a PROFINET IO controller in the context of the connection to the field devices, to serve as an Ethernet-APL gateway in the context of the connections to the field devices and the higher-level automation device.

The invention relates to the technical field of Profinet equipment testing, in particular to a PLC-based Profinet equipment automatic testing system and method, and the system comprises an access reference module which is used for accessing to tested equipment and comprises a PLC, an interaction unit, a quick connection base, a relay and a network forwarding unit; a benchmark is preset through the interaction unit, and the quick connection base is integrated with a quick plug power supply and a Profinet interface; and the power supply information module is used for controlling power supply of the relay through the PLC, initiating Profinet connection, reading equipment identification information and comparing the equipment identification information with a reference. According to the invention, the quick-plug power supply and the Profinet interface are integrated through the quick-connection base in the access reference module, so that the problem that the time consumed in the test preparation stage is long due to the fact that a power circuit and a communication circuit are manually connected respectively and the power supply on-off of the equipment is manually controlled in the traditional Profinet equipment test is solved.

The utility model discloses a communication system for field bus intelligent equipment, and the system is characterized in that the system comprises a controller which is provided with an Ethernet port; at least one field module, wherein each field module comprises an IO device field unit and N field bus intelligent devices; wherein the IO device field unit is used for connecting field bus intelligent devices to a PROFINET network, the IO device field unit is provided with at least two Ethernet ports and M field bus interfaces, each field bus intelligent device is connected with one field bus interface of the IO device field unit, and N is smaller than or equal to M; and one Ethernet port of the first IO equipment field unit is connected with one Ethernet port of the controller through an Ethernet cable, and the IO equipment field units are connected in series through the Ethernet cable. The communication system is simple to operate and convenient to install, and can access a plurality of field bus intelligent devices to the PROFINET network at one time, so that the cost is reduced, and the efficiency is improved.

The invention discloses a robot control method and device, a storage medium and electronic equipment. Relates to the field of robot control, and the method comprises the following steps: receiving slave station IO data sent by a target slave station device based on a PROFINET network, the target slave station device being any one of a plurality of slave station devices of a robot; based on a mapping relationship, mapping the slave station IO data into a target IO variable, the mapping relationship being used for indicating a corresponding relationship between the IO data of the slave station device and the IO variable in the controller; and updating the target IO variable into a program variable of the robot to control the robot to execute a task. According to the invention, the technical problems of low robot control efficiency and poor flexibility caused by the fact that interaction between slave station equipment and a robot controller is realized by depending on additional PLC equipment as master station equipment in the prior art are solved.