RU2446597C2 - System and method for controlling devices integrated into network through open field bus - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: such system provides single detachable connecting channel (cable) (8) within system for connecting bus agents (N1-Nx) and gate (20) and for transmission of control data and/or status and energy data. In the method of controlling devices integrated into network using bus with gate by means of open field bus, to solve task the gate in the preset configuration at output does not wait for bus agents (N1-Nx), and to accept at least one bus agent (N1-Nx) and generate new preset configuration with at least one bus agent the configuration mode is initialised in the gate.

EFFECT: system and method for controlling devices integrated into network with network gate by means of open field bus provides simplification of such type that expensive wiring is eliminated, and user can implement system verification and configuration at minimum cost and could reload it when error messages occur.

39 cl, 10 dwg

Description

Technical field

The invention relates to a system and method for controlling devices connected to a network with a network gateway via an open field bus.

The object of the invention, in particular, includes the integration into a network for the exchange of technical data, the configuration of device subscribers and the power (supply) of devices with electrical energy. Typical devices are industrial switching devices such as contactors, motor starters, circuit breakers, measuring sensors and the like.

State of the art

The aforementioned industrial switching and other devices in electrical installations are typically switched or monitored centrally through a control system, for example through a programmable logic controller (PLC). As a rule, the switches are connected to the control module (to the controller, for example to the PLC) through the so-called wiring of control channels (for example, cables). As a rule, it consists of channels that can turn the switching device on and off, in this case mainly a contactor, and which simultaneously supply the energy necessary for switching the switching device, and from channels that return control signals from the switching device to the control module. Examples of signals for monitoring a switching device, in this case for a motor starter, are the status of the contactor position (on / off) or the status of a motor circuit breaker (on / off).

When installing an electrical installation (for example, a distribution cabinet), the wiring and connection of electrical switching devices to the control system are carried out manually, as a rule, by specialists in electrical engineering. This work can often become part of an enclosure assembly that is time consuming. In addition, the wiring of many of the same type of control cables is fraught with errors, since, for example, they can be mixed up when laying in the cable channel and then connected to the terminals of the wrong devices. In addition to this, control channels must be routed to separate switching devices so that they can be electrically connected there. In this case, additional difficulties arise, namely, for laying channels, the cable channels must be cut in length, mounted on a mounting plate, and then separate control cables can be laid in them.

Intermediate connection of devices between the bus and other system components is also known in the art. For example, in EP 0779640 A2, amplification modules connected to the bus are provided for arranging drive units of electrical switching devices. An electromagnetic or electronic amplifier block is connected via an interface chip with a bus connector and, on the one hand, with a power current connector, and on the other hand with a drive connector. The interface microcircuit is laid bidirectionally or unidirectionally. In addition, switching equipment is provided for signals received from the bus to set the parameter of the amplifier module and / or switching device, as well as switching equipment for recording signals transmitted from the bus through the state of the amplifier module and / or switching device.

Regarding the connection to the bus from EP 0637784 A1, there is known a module equipped with a bus adapter, which is connected on one side to a contact system for electrical and mechanical connection to the bus and connected to electronic processing circuits for programmable processing of the measured signals or information about the state of the object and giving the command to turn off, and the measured signals or information about the state of the object are supplied via the bus. The module can independently generate shutdown signals during processing of the measured signals and transmit them to the emergency start switch start-up system.

From DE 10147442 A1, a method, a device and a control module for monitoring a bus system with at least three subscribers are known, and one of the subscribers is designed as the main (higher level) subscriber and initiates any data transfer on the bus system. The second subscriber is designed as an element of a single system of locks of a locked passenger compartment, and the third subscriber is designed outside the passenger compartment. The first subscriber controls the data transmission in such a way that in at least one operational state of the vehicle and / or the bus system, the first subscriber takes measures to prevent data transmission when any data transfer via the bus system is not initiated. The bus system used is the LIN bus system (LIN = Local interconnect Network).

DE 10147446 A1 also discloses a method and apparatus for monitoring a bus system with at least two subscribers, at least one of which is designed as an authorized subscriber, which controls the transmission of data on the bus system, and for any data transmission (on the bus system) a label is transmitted (flag), uniquely subordinate to any subscriber. If the data transfer is initiated by a subscriber other than the authorized one, the transmission of the transmitted data is prevented. In this case, the LIN bus system is also used.

A communication and control device is known from DE 19756918 A1, in which the master station transmits a packet of frames to a large number of slave stations (Slave) and individual response frames are transmitted from the slave stations to the master station.

DE 68920028 T2 discloses a method and apparatus for multiple access with cyclic backups in a communication system, and provides access to a data medium in a communication network with a unidirectional bus structure configuration "folded bus" (linear bus with feedback) or dual bus configuration and large the number of stations connected between the buses. The network contains two unidirectional data buses directed in opposite directions, and many stations, each of which is connected to both buses. In addition, an input device is provided that forms time segments (intervals) on the buses at regular intervals, each station requesting access to this time interval.

DE 3424866 A1 also discloses a method and apparatus for transmitting data, and they are transmitted in digital time division (multiplexing) mode to a bus system. The bus system consists of a central control module, many peer-to-peer subscriber stations subordinate to the control module and at least one data bus channel connecting all subscribers.

Disclosure of invention

The objective of the invention is to simplify the system and method for controlling devices connected to a network with a network gateway through an open field bus, in such a way as to avoid expensive wiring and so that the user with minimal control costs could verify and configure the system, and with error messages could reboot it.

For the system described in the restrictive part of claim 1, the problem is solved by the fact that there is a single plug-in (e.g., plug-in) connecting communication channel within the system for connecting bus and gateway subscribers, as well as for transmitting control data and / or status data as well as energy. For the method described in the restrictive part of paragraph 32 of the claims, the problem is solved in that the gateway in the specified configuration does not wait for the bus subscriber at the output and, to accept at least one bus subscriber and generate a new predetermined configuration with at least one bus subscriber, configuration mode in the gateway. For the switching device described in the restrictive part of claim 37, the problem is solved in that the switching device has at least one control input for interrogating the previous switching device as a bus subscriber and / or gateway, and a control output for sorting the subsequent switching device acting as a follower of the bus. Improvements to the invention are described in the dependent claims.

Thus, the invention relates to a system with actuators (actuators) as bus subscribers, mainly industrial switching devices, such as, for example, circuit breakers or combinations (ie device systems) of the type "motor protective circuit breaker - contactor", which are combined via the application bus, in this case via the LIN bus, to the network using the technology of data collection, transmission and processing in order to control and monitor connected industrial switching devices. The system has at least one gateway that is connected between the open field bus and actuators. A single plug-in connecting (for example, plug-in) channel connects individual bus subscribers or actuators to each other and to the gateway. It serves to transmit data, namely control data and / or status data, and to transfer energy to power the bus subscriber and, possibly, for subsequent components of the system. The gateway is preferably located between the open field bus and the connecting cable and has a connecting device for connecting to the field bus, for connecting the supply voltage and the connecting channel. Numerous functions can be implemented through the gateway, which will be further explained in more detail.

Particular advantages of the system in accordance with the invention is that the wiring of the control channels to industrial switching devices is replaced by a detachable and easily installed system of connecting channels. Time-consuming and error-prone installation of control channel wiring is eliminated, while saving on the use of cable channels, which are necessary for laying channels or for assembling channels.

Such wiring in this case mainly concerns the control channels for the contactor, the channel for switching the contactor on and off and the status channel, in this case, for example, to interrogate the state (i.e., the on position) of the contactor or the state (position) of the motor safety switch (on ./off).

Naturally, it is possible to connect sophisticated devices as actuators or bus subscribers that can exchange large amounts of information or data. Such devices, for example, can be industrial switching devices, such as a power switch, or an electronic motor protection relay, or a frequency converter.

The control system of devices networked with a network gateway via an open field bus may contain the following features individually or in combination with each other. In particular, a bus controller for controlling the gateway is provided. The gateway itself preferably has at least one interface for the field bus, at least one interface for the application bus for controlling and polling at least one actuator (actuator) or bus subscriber lying on the bus, and at least one information output for exchanging data with at least one bus subscriber. Further, it turns out to be appropriate if the gateway has at least one storage device for the residual backup of the bus configuration read from the bus controller and for controlling this configuration of any or a particular application bus.

Further, it turns out to be preferable if the gateway has at least a first plug socket for primary power supply and at least a second plug socket for power supply with additional (auxiliary) voltage, which is supplied or can be brought to the subscriber of the bus. In addition, the gateway can be connected or connected with at least one control channel for accessing the first subscriber of the bus.

It is also preferable if the gateway has at least one status indicator for displaying the operating status of the bus subscribers and communication on the bus and / or at least one bus subscriber has at least one indicator for displaying its own working status. Thus, continuous visual monitoring of the normal operation of the system is possible.

Further, the gateway preferably has at least one actuator for triggering the configuration of the bus subscriber connected via the application bus. In this configuration, that is, in the configuration mode, the gateway through the application bus checks how many bus subscribers are connected to the application bus, and the bus subscribers are numbered. At the same time, each bus subscriber can save his own special identification number and / or gateway with saving information when the power is turned off. Thus, even when you turn off (power) after a new start, there is no data loss, so that after the start, the work can be continued without any additional measures. After fixing all the bus subscribers, this configuration is permanently (remanently) stored in the gateway or saved there as the specified configuration and the gateway and bus subscribers can exchange or exchange control data and / or status information.

For at least one bus subscriber or actuator, it is preferable if it has at least one control input for polling the previous bus subscriber and / or gateway and one control output for sorting the subsequent gateway subscriber. In addition, it may contain at least one control and software device for implementing communication on the bus and for the functionality of the actuator application.

For power supply, i.e. for power supply, at least one bus subscriber may have a device for connecting to a voltage in the network. In addition, it preferably has at least one device for laying a loop of the data stream and / or auxiliary voltage to a subsequent bus subscriber or actuator and / or for further transfer of auxiliary voltage to the actuator.

At least one bus subscriber preferably has at least one device for performing actuator actions and / or at least one device for notifying of actuator actions and / or actuator position on the application bus, so that it is possible to communicate the actions of the actuator and its position via the bus applications.

Further, at least one bus subscriber preferably has at least one device for recording an identification number through a gateway. With it, it becomes possible to check the number of bus subscribers connected to the application bus. In this case, the bus subscribers are preferably sequentially numbered. Each bus subscriber individually saves a special identification number with saving information when the power is turned off, that is, with a new start after shutdown, a special identification number is again available and does not disappear when turned off. In the gateway, all identification numbers are also preferably stored while maintaining information when the power is turned off.

The application bus may be a LIN bus with which control data and / or status and implementation data of the application bus configuration is executed or can be executed via a protocol, which consists in particular of a LIN data frame with an array of data from 1 to 8 bytes in length. In principle, a different architecture with a different length of the data array is also possible.

Any of the possible application bus configurations can be hard-coded to the gateway. It is also possible that the recorded application bus configuration may be overwritten by the bus controller.

With respect to bus subscribers or actuators, the invention is based on the fact that at least one actuator may be an electrical switching device. In this case, the actuator, in particular, can be a combination of a motor protective switch - contactor.

Preferably, a plug-in or detachable (plug), i.e. interchangeable, block or module, which, on the one hand, can possess the properties of an actuator and, on the other hand, has at least one mechanical indicator for displaying the position of the actuator and / or at least one indicator for displaying its operating mode. Thus, with the help of a plug-in unit, the position of the actuators can be shown, and the plug-in unit can be connected to actuators, in particular to switching devices. Instead of reconfiguring the switching device, it is enough to connect it to a removable module, which can also have a detachable (plug-in) contact for connecting a communication channel.

In addition, a plug-in or plug-in plug-in module may have at least one digital input for connecting a switching contact with zero potential. It is suitable, for example, for an additional (auxiliary) switch for interrogating the position of the motor protective switch in the combination "motor protective switch - contactor".

The removable plug-in or plug-in module may preferably have at least one electrical circuit disconnection for the actuator. Such a disconnection of the electrical circuit can be used for, for example, electrical blocking of the reversing starter.

When located on the combination "motor protective switch - contactor" of the replaceable module, the latter may preferably include auxiliary voltage on the coil of the contactor. The above other distinguishing features of such a plug-in module may also preferably be provided precisely with such a combination of “motor protective switch-contactor”.

The system can be further constructed in such a way that sequentially, i.e. between the bus subscribers, a power module is connected in between, which connects the data stream to the next bus subscriber and / or does not connect additional voltage to the bus loops. With intermediate switching on, “linear” power supply from the bus subscriber to the bus subscriber is interrupted. Nevertheless, the connection for the purpose of data transfer and the primary voltage between the bus subscribers lying in front of and behind the power supply module are connected by loops. By means of an intermediate-switched power module, a new power supply is provided for the subsequent bus subscriber. Therefore, it is advisable to provide an external voltage source that supplies additional voltage to the power module, which is transmitted to the subsequent subscriber of the bus. In addition, the power module preferably has at least one indicator to indicate the presence of external additional voltage. Thus, it is possible to control the application of additional voltage to the power module and, therefore, also to at least one subsequent bus subscriber.

At least one bus subscriber or actuator preferably has a mechanical indicator to display the actuator positions so that they can be read easily.

At least one sensor may be located in a number of bus subscribers for measuring physical quantities.

In the method for controlling devices connected to a network, especially in industrial switching circuits with a gateway via an open field bus, according to the invention, after the actuation element is actuated, the configuration mode is executed.

Brief List of Drawings

For more detailed comments on the invention, further examples of its execution will be described in detail using the figures of the drawings. They depict:

Figure 1 Three typical hardware components of an example system;

FIG. 2 A block diagram for representing a system test and adopting a desired configuration of a connected device to an application bus,

3A and 3B are a block diagram of an application bus system,

Figa-4C Three configurations of subscribers of the bus,

Fig. 4D connect other bus subscribers and

Figure 5 System consisting of a gateway, bus subscribers, and a power module.

The implementation of the invention

The figures show the proposed system and its corresponding method for combining into a network using the combination of "motor protective circuit breaker - contactor" as an example. However, the subject matter of the application is not limited to the combinations “motor protective switch - contactor”, also referred to as a motor starter.

As typical examples of hardware components, FIG. 1A shows a gateway 20, FIG. 1C shows a bus subscriber in the form of a plug-in module 40 in the combination “motor protective circuit breaker - contactor”, and in FIG. 1B, a power module 50, also designated as PM.

Gateway 20 has an interface for a host control system, such as open field bus 2 (see FIG. 3A), such as PROFIBUS DP (Process Field Bus with Decentralized Peripheral), Device Net or CANopen (Controller Area Network) or the other with which it is connected to the main fieldbus system. The gateway 20 controls the network connected via the application bus 10, installed as industrial switching devices by the subscribers of the bus N1-Nn through a flat (ribbon) cable 8, which is also shown in Fig.3A. The gateway 20 has a power supply device 24 for connecting a voltage source 14 for own electronics and electronics of the bus subscribers and a second power device 25 for connecting a voltage source 16 of the bus subscribers. The latter is an additional voltage source for the actions of the actuator of the bus subscribers, and in this case, the voltage or current supply of the “motor protective circuit breaker - contactor" combination is provided. The gateway 20 has at least one LED 28, which serves as an indicator of the status of the operating states of the gateway and bus communications. In addition, the gateway 20 has an actuating element, a configuration switch 27, which serves to start automatic configuration of the bus of the bus subscribers; and in the gateway 20 there is at least one memory unit that is used for instantaneous (residual) recording (i.e., backup) of the bus configuration.

For the “motor circuit breaker - contactor" combination, the plug-in module 40 shown in FIG. 1C is also designated as SM, which can be mechanically and electrically matched or matched with the contactor. The detachable (plug-in) module 40 has two contact pins 49, which are used for electrical connection with the coil of the contactor. This plug-in module takes control of the wiring. With its help, the contactor coil is electrically controlled and the position of the contactor is electrically interrogated. Further, it seems possible to interrogate an electrical contact with zero potential, if or how much is available. Along with electrical functions, a switch position indicator 46 is provided on the plug-in (plug-in) module 40, which mechanically - in a way that is visible to the user - displays the position of the switch. In addition, the detachable (plug-in) module 40 has the following properties:

1. he applies an additional voltage 16 (see Fig. 3A and Fig. 3B) to the coil of the contactor,

2. he has a switch position indicator 46 for displaying the position of the actuator (actuator),

3. it has an indicator 48 for displaying its own operating state,

4. it has a digital input 44 for connecting a contact output with zero potential, and

5. It has an electrical isolation 45 for the actuator.

Such a disconnection 45 of the electrical circuit can be used, for example, to electrically lock the reversing starter.

The application bus 10 is driven by the already mentioned multi-core - in this case six-core ribbon cable 8 (see Fig. 3A and Fig. 3B). Cable 8, starting from gateway 20, is inserted or laid from the bus subscriber to the bus subscriber through a connecting plug. For each subscriber of the Nx bus, on the plug-in or detachable (male) module 40, two plug-in sockets 41, 42 are designed for inserting the ribbon cable 8 into the bus input and the bus output. Due to the linear arrangement of the subscribers, the last subscriber Nn on the output side does not have an inserted ribbon cable 8 as a connecting channel; its output (plug socket 42) remains “empty”.

Each bus subscriber has a status indicator 28, 48, 58 in order to preferably optically display the status of the device using an LED. The plug-in or plug-in (plug-in) module 40 and power supply module 50 of each Nx bus subscriber has a dipole terminal 44, 45, 54, 55 so that a contact with zero potential could be connected, for example, for an additional switch for interrogating the position of the motor safety switch .

Figure 5 shows further details of the system. On the first subscriber N1 of the bus, which in this case is represented by the combination of "motor protective circuit breaker - contactor", three power cables from the mains L1, L2, L3 and load M are shown. Further, on the upper half of the subscribers designated as N1, N2, N3 the bus presents a safety switch of the motor, and in the lower half inserted into the contactor plug-in or detachable (plug) module 40 with its plug sockets 41, 42 and a mechanical indicator 48 for the position of the contacts of the contactor. The image of FIG. 5 can be understood as an application bus 10 with n subscribers, in which, if desired, the power supply module 50 shown in FIG. 5 can be integrated. Further explanation to the power supply module 50 follows.

FIG. 2A is a block diagram for representing a system test (debugging), and FIG. 2B is a block diagram for accepting a desired configuration. The block diagrams of both Figures pass into each other.

In the first step in FIG. 2A, it is necessary that the voltage at the gateway be turned on. In the next step, the gateway checks to see if any subscriber is available on the bus. If the answer is “yes” to this question, a sequential question is asked whether this subscriber is expected at the gateway. If the answer is yes to this question, then in the next step this subscriber is configured by the gateway. After that, the gateway selects, through the configured subscriber, the next subscriber. In conclusion, the gateway re-checks whether any subscriber is available on the bus, and thereby completes the polling cycle. If this question is answered “no” at the very beginning or at this point, the next question is asked whether any subscriber is expected by the gateway. If the answer “no” is also received for this question, then the situation is presented that there is not a single bus subscriber available, which is set as a given configuration. Thus, it is determined that the gateway-bus system is correct and ready to work, since the specified configuration is at the same time actual (current). Therefore, this state is displayed using the LED (“LED status on”).

If the question is whether the subscriber is expected by the gateway, if no subscriber is available on the bus, the answer is “yes” or the question is whether the subscriber is expected by the gateway, if it is defined as available on the bus, the answer is “No”, then there is a configuration error, that is, the gateway and the bus are not ready for operation, since the required configuration does not match the current one. Therefore, this status is also displayed using the LED indicator (“LED status on”). A survey of whether the subscriber is available on the bus and whether it is expected by the gateway is run as a cycle until all the bus subscribers expected by the gateway and recorded in the configuration are detected.

As a result, there are both possibilities: the current configuration matches the required one or does not match. In the first case, the system is ready for operation and the status is displayed using a constantly lit LED 28 '' status. In a mismatching situation, the status LED 28 ′ flashes, prompting the operator to turn on the configuration switch 27. With the inclusion of the configuration switch 27, the available configuration is accepted as set, and the system proceeds to the final check (Fig.2B).

In this case, each subscriber is interrogated by the gateway, and possibly the available parameters are stored in the gateway. Next, it is checked whether the number of subscribers on the application bus exceeds the maximum allowed. If the maximum allowable number is exceeded, then the gateway again goes into error mode, since the specified configuration does not match the current one. If not, then the subscriber data is read and stored in the gateway. The gateway selects the next one through the available subscribers and checks for access for it. In case of detection of all subscribers, the gateway and subscribers switch to the normal operating mode, in which control data or status information is exchanged between the gateway and subscribers. This configuration is instantly (permanently) stored in the gateway as a new configuration.

3A and 3B show bus control flowcharts. Fig. 3A shows a gateway and a first bus subscriber N1, and Fig. 3B shows a power module 50 and a second bus subscriber inserted between the second and third bus subscribers N2 and N3. The inputs for the open field bus 2 (plug connector 23) and for the power supply (primary voltage 14 or U1, ground (GND), additional voltage 16 or U2) are shown on the power supply side (at the supply end). U1 is understood as a power supply 14 for electronics in the gateway and bus electronics, and U2 is understood as additional voltage 14 for subscriber applications. The output (plug socket 22) of the gateway leads to a six-core ribbon cable 8.

In the linear row of bus subscribers, at will, at any place, a power module (PM) 50 (FIG. 3B) can be intermediate switched on. It is also once again schematically represented in FIG. 5. With the intermediate switching on of the power module, the “linear” power supply from the subscriber to the bus subscriber is interrupted. The information channel and the primary voltage 14 between the bus subscribers N1, N2, N3 lying before the power module and the Nm lying after it are connected by loops.

With the PM 50 power supply module included in the bus line, a new power supply is made for the next bus subscribers in the bus row (group G), for this the power supply module is connected to a 16 'power supply, for example, to 24 volt direct current (DC). In FIG. 3B, the power supply 16 'is graphically represented as going from below (relative to the drawing) and in FIG. 5 going from above (relative to the drawing). This power supply may be, for example, fuse power for a group of bus subscribers acting as an emergency shutdown group. The power module has terminals (terminal blocks) with a screw terminal or plug sockets 54, 55 for a 16 'power source. Otherwise, the power module - like other bus subscribers - has two plug sockets 51, 52, one of which is an input and the other an output for a system assembled on plug connections. Also, a status indicator 58 is provided on the power supply module, in particular for visual display by means of an LED, which indicates whether the power supply voltage 16 'is applied to group G of the next bus subscribers.

Using the presented system, it is no longer necessary to produce a conventional control wiring for industrial switching devices connected to a network. In particular, for the combination “motor protective circuit breaker - contactor”, the network is connected using a single plug-in (plug-in) connecting channel. The connecting channel (cable) 8 transmits on the one hand control data or status information and on the other hand the necessary energy for the switching device. In addition, using the power module it is possible to create groups consisting of subscribers to the bus, so that separate power supply and energy control in each such group are possible. The creation of groups can, for example, be used to create a specific segment or a specific circuit (circuit) in which switching devices create a separate group of emergency switches in which they can be controlled, turned on or off. As noted, the use of a power module is optional.

The operation and principle of operation of the system are displayed by FIGS. 4A-4C. In the drawings, a light circle with marks 28 '' and 48 '' represents a lit LED (LED), a black circle without any further marks represents a non-burning LED 28, 48, and a circle with a crown with marks 28 'and 48' represents a blinking LED (LED) )

To connect the open fieldbus 2 to the system, the gateway 20 is a central element. The N1-Nx bus subscribers receive energy, are controlled and monitored from the gateway, and control data and status information of all connected bus subscribers from the gateway are transmitted to the higher level field bus 2. First of all, the gateway is connected to a power source 14 for its own electronics and, secondly, to a power source 16, which feeds the bus subscribers. With this design of the power supply, the additional voltage 16 for the bus subscribers (for example, the voltage on the coil of the contactor) can be turned off regardless of the functionality of the bus (for example, from the emergency shutdown system).

Through the system of plug connectors of the ribbon cable 8 provided here, the bus subscribers, such as, for example, the combination “motor protective circuit breaker - contactor” with a replaceable module, can be connected in series. If the primary voltage 14 is first connected to the created system, then the gateway 20 checks the connected subscribers N1-Nx to the application bus, as has just been explained to Fig.2A and Fig.2B. In the initial situation, a system without bus subscribers is provided as a given configuration. After connecting bus subscribers individually, it is updated, as has just been described above.

In Fig. 4A, n bus subscribers are connected in an initial configuration, i.e. without subscribers. In this case, the gateway 20 at first does not expect subscribers due to a given configuration. Therefore, due to a configuration error, the gateway switches to the error position and this is visually displayed on the gateway using a flashing light emitting diode (LED) 28 '(in the upper right corner of the gateway 20 shown in Fig. 4A). The control LED on the first bus subscriber, which is directly connected to the gateway 20 via ribbon cable 8, also blinks (LED 48 '), since it is not expected by the gateway. The remaining LEDs 48 for the status or control of other subscribers from N2 to Nx buses do not light up, that is, are off.

In accordance with FIG. 4B, a configuration switch 27 is pressed at the gateway to accept the connected subscribers as a predetermined configuration. After that, through the application bus 10, the gateway sequentially checks how many subscribers of the bus (N1-Nx) are connected to the application bus. In this case, subscribers are sequentially numbered. Each subscriber records (saves) a special identification number with saving information when the power is turned off, that is, with a new start after switching off, the special identification number is again available and does not disappear when turned off. All identification numbers in the gateway are also recorded with preservation of information when the power is turned off. After this procedure, all connected bus subscribers are configured. The 28 '' LED on the gateway and the 48 '' LEDs on the bus subscribers are constantly on and on.

4B also corresponds to a situation in which the system is electrically disconnected from the gateway with respect to the primary voltage 14 and reconnected. After switching on, the gateway sequentially checks all connected bus subscribers and compares them step by step with the internally recorded (saved) preset configuration. In the described situation, the given configuration coincides (since it remains unchanged) with the connected subscriber configuration (current configuration). Thus, the system remains ready for operation.

Now, individual bus subscribers can be controlled and monitored through the bus controller of a superior (main) open field bus. If the structure (configuration) of the connected devices is changed, for example, by adding or removing devices, then this situation is recognized by the gateway by means of differing set and current configurations and is displayed using the LED 28.

Fig. 4C shows an example with the available configuration of the gateway 20 and n subscribers N1 through Nn of the bus, which, after configuration, are ready for operation. If one or several subscribers (Nin) of the bus are added to this system, then after switching on the following picture is obtained. The LED 28 ', which displays the status of the gateway, flashes, since the previously set configuration (n bus subscribers) is at variance with the current configuration (n + 1 bus subscriber). In addition, the 48 'LED of the first (even in the case of several added subscribers) Nin bus subscriber blinks because he or they were not expected by the gateway. Using flashing LEDs, the user can easily understand where there is a difference in the current configuration. By simply pressing the configuration switch 27, the new configuration is automatically adopted from the gateway. After completion of the automatic bus configuration, the situation for n + x subscribers of the bus should be the same as it is for n subscribers in Fig. 4B.

5 shows the use of at least one power module 50 to create a group G of bus subscribers. Using the power module, the bus subscribers located behind it, in this case, the plug-in module on the combination “motor protective circuit breaker - contactor”, are isolated from the additional power source 16 for the subscribers, and the latter is powered again from the additional voltage 16 '. The application bus 10 is connected by a loop over the data channel relative to the primary voltage source 14 for the electronics of the 1: 1 bus subscriber in the power module. When disconnecting the additional voltage 16 'supplied from the power supply module, the bus subscribers, for example contactors, are not energized. The electronics of the bus subscribers, however, continues to be powered and thereby can further transmit the status of the actuator, for example, the position of the contacts of the motor starter, to the gateway.

The use of the power module is advantageous in that independent groups of combinations “motor protective circuit breaker - contactor” can be formed, for example, an emergency switch circuit switch, which can be separately disconnected. The use of the power module can occur at any place in the system from plug connections. Also, several power modules can be built into the system from plug-in connections, so that several independent groups of bus subscribers are created.

The aforementioned features of the system and its components can be provided individually or in combination with each other. Along with the described embodiments, many others are possible, for which there is one single connecting channel inside the system for connecting bus and gateway subscribers and for transmitting control data and / or status and energy information.

Claims (39)

1. The control system of industrial switching devices that are subscribers (N1-Nx) of the bus, networked with a network gateway through an open field bus (2), characterized in that there is a single plug-in channel (8) inside the system for connecting subscribers (N1- Nx) buses and network gateway (20) and for the transmission of energy and control data and / or status data. 2. The system according to claim 1, characterized in that the network gateway (20) is located between the open field bus (2) and the plug channel (8) and is equipped with connecting devices for connecting to the open field bus (2), for connecting the mains voltage and split channel (8). 3. The system according to claim 1, characterized in that the network gateway (20) is provided with at least one interface for an open field bus, at least one interface (22) for a bus (10) of applications for controlling and polling at least one lying on the bus (10) applications of the actuator or subscriber of the bus (N1-Nx) and at least one information output for communication with at least one subscriber (N1-Nx) of the bus. 4. The system according to one of claims 1 to 3, characterized in that a bus controller is provided for controlling the network gateway (20). 5. The system according to claim 3, characterized in that the network gateway (20) has at least one drive for instant backup of the bus configuration recorded by the network gateway (20) and for storing the existing configuration of any or a particular bus (10) of the applications. 6. The system according to one of claims 1 to 3, 5, characterized in that the network gateway (20) comprises at least a first plug socket (24) for connecting a voltage source (14) and at least a second plug socket (25) to provide power with additional voltage (16), which is connected or can be connected to the subscribers (N1-Nx) of the bus. 7. The system according to one of claims 1 to 3, 5, characterized in that the network gateway (20) is connected or can be connected to at least one control channel for accessing the first subscriber (N1) of the bus. 8. The system according to one of claims 1 to 3, 5, characterized in that the network gateway (20) is equipped with at least one status indicator (28) for displaying the operating states of the subscribers (N1-Nx) of the bus and bus communications, and / or the fact that at least one of the subscribers (N1-Nx) of the bus is equipped with at least one indicator for displaying its own status. 9. The system according to one of claims 1 to 3, 5, characterized in that the network gateway (20) is equipped with at least one actuating element (27) for starting the bus configuration of the subscribers (N1-Nx) of the bus connected via the application bus . 10. The system according to claim 3, characterized in that at least one of the subscribers (N1-Nx) of the bus as an actuator has at least one control input for interrogating previous subscribers of the bus and / or network gateway (20) and one control output for selecting subsequent subscribers. 11. The system according to claim 3, characterized in that at least one subscriber (N1-Nx) of the bus contains at least one control and programmable module for implementing communication on the bus and the functionality of the actuator application. 12. The system according to one of claims 1 to 3, 5, 10, 11, characterized in that at least one of the subscribers (N1-Nx) of the bus is equipped with a device for connecting to the mains voltage (L1, L2, L3). 13. The system according to claim 6, characterized in that at least one subscriber (N1-Nx) of the bus is equipped with at least one device for laying loops of the data stream and / or additional voltage (16) followed by the subscriber of the bus or actuator and / or for further transmission of additional voltage (16) to the actuator. 14. The system according to one of claims 1 to 3, 5, 10, 11, 13, characterized in that at least one of the subscribers (N1-Nx) of the bus is equipped with at least one device for performing actions of the actuator and / or at least one device for reporting actuator actions and / or actuator position on the application bus. 15. The system according to one of claims 1 to 3, 5, 10, 11, 13, characterized in that at least one of the subscribers of the bus (N1-Nx) is equipped with at least one device for recording the identification number through the network gateway ( twenty). 16. The system according to one of claims 3, 5, 10, 11, 13, characterized in that the application bus is a UN bus with which control data and / or status information and deviation of the configuration of the application bus are performed or can be performed via the protocol , which consists in particular of a LIN data frame with a data array length of 1 to 8 bytes. 17. The system according to one of claims 1 to 3, 5, 10, 11, 13, characterized in that the configuration of the application bus in the network gateway (20) is hard-coded in the network gateway (20). 18. The system of claim 17, wherein the recorded application bus configuration is rewritable by the bus controller. 19. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, characterized in that at least one bus subscriber or actuator (N1-Nx) is an electric switching device. 20. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, characterized in that at least one bus subscriber or actuator (N1-Nx) is a combination of "motor protective switch - contactor". 21. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, characterized in that there is a plug-in or plug-in module (40) with at least one mechanical indicator (46) to display the position of the actuator and / or at least one indicator (48) to display your own working status. 22. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, characterized in that a plug-in or plug-in module (40) with a digital input (44) is provided for connecting a switching contact with zero potential. 23. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, characterized in that a plug-in or plug-in module (40) is provided with at least one disconnection of the electric circuit (45) for the actuator. 24. The system according to item 21, wherein the plug-in or plug-in module (40) is located on the combination "motor protective switch - contactor". 25. The system according to paragraph 24, wherein the plug-in or plug-in module (40) includes an auxiliary voltage (16) on the coil of the contactor. 26. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, 24, 25, characterized in that between the subscribers (N1-Nx) of the bus an intermediate power module (50) is connected, which connects the loop to the stream data with subsequent bus subscribers and / or the additional voltage source does not connect with a loop. 27. The system according to p. 26, characterized in that an external voltage source is provided, which brings an additional voltage (16 ') to the power supply module (50), which is transmitted to the next bus subscribers. 28. The system according to item 27, wherein the power module (50) is equipped with at least one indicator (58) to display the presence of external additional voltage (16). 29. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, 24, 25, 27, 28, characterized in that at least one bus subscriber or actuator (N1-Nx) contains a mechanical indicator (46) to display the position of the actuator. 30. The system according to one of claims 1 to 3, 5, 10, 11, 13, 18, 24, 25, 27, 28, characterized in that at least one sensor for recording physical quantities is located in the number of subscribers (N1- Nx). 31. The system according to claim 1, characterized in that these devices are contactors, motor starters, circuit breakers and / or measuring sensors. 32. A method of controlling industrial switching devices in a switching circuit connected to a network with a network gateway (20) by means of an open field bus with a system according to one of the preceding paragraphs, characterized in that the network gateway (20) in the specified configuration does not expect subscribers ( N1-Nx) of the bus and for accepting at least one subscriber (N1-Nx) of the bus and generating a new predetermined configuration with at least one subscriber of the bus, the configuration mode in the network gateway (20) is started. 33. The method according to p, characterized in that in the configuration mode via the application bus (10), the network gateway (20) checks how many subscribers (N1-Nx) of the bus are connected to the application bus (10), and the subscribers (N1-Nx ) the tires are numbered. 34. The method according to p. 33, characterized in that each subscriber (N1-Nx) of the bus stores its own special identification number and / or identification number of the network gateway (20) with saving information when the power is turned off. 35. The method according to one of claims 32-34, characterized in that after registering all the subscribers (N1-Nx) of the bus, this configuration is instantly recorded or can be recorded in the network gateway (20) as a predetermined configuration and exchanged or can exchange control data and / or status data between the network gateway (20) and the subscribers of the bus (N1-Nx). 36. The method according to p, characterized in that the said devices are contactors, motor starters, circuit breakers and / or measuring sensors. 37. The switching device controlled by the system according to one of claims 1-31, characterized in that the switching device is provided with at least one control input for interrogating the previous switching device, which is a bus subscriber, and / or network gateway (20) and one control output for selecting a subsequent switching device, which is a further subscriber to the bus. 38. The switching device according to clause 37, wherein the switching device comprises at least one control and programmable module for communicating on the bus and the functionality of the actuator application. 39. The switching device according to clause 37 or 38, characterized in that the switching device is equipped with at least one device for recording an identification number through a network gateway (20).

Images