RU2166461C1 - Device for control of flying vehicle using combined information exchange system - Google Patents

Abstract

FIELD: control of flying vehicles by means of microprocessor sets. SUBSTANCE: when flying vehicle has zones of concentration of electronic equipment, structure may be made in form of engageable starts at number of parties reaching ten. System includes combination of multiplex, local and common buses, two communication adapters and control unit. Control unit is made for check of number of received information words during operation in reception mode and absence of coding errors and shifting the controller/adapter top next communication session in case number of received information words corresponds to preset magnitude as well as in case one of above-mentioned conditions is not satisfied in the course of reception of information and forming respective message to central processor and finding-out indication of respective malfunction and recording it in word register of controller/adapter. Terminal is made for check of absence of coding errors of command word and check of coincidence of address. Use is made of several criteria in selecting the final version of realization of structure of information exchange: mass, power requirement, performance in terms of error probability, information efficiency and simplicity of logic organization. In construction of combined systems consisting of wire communication lines as main information transfer lines and fiber-optic communication line as standby lines, the basic principle is maintenance of logic organization of exchange. EFFECT: minimum power requirements; minimum scope of information exchange equipment; possibility of mating with multiplex bus for reception and transmission of information via wire communication lines and fiber-optic communication lines. 4 cl, 3 dwg

Description

 The invention is intended for use in devices for controlling aircraft built using microprocessor kits.

 The development of information exchange systems (SIO) of modern military aircraft follows the path of creating trunk-modular systems with multiplexed information exchange channels (ICIE) and built-in mini and micro-computers directly into the systems equipment.

 The accumulated domestic experience in integrating airborne equipment shows that, along with the ICIS intersystem exchange, high-performance local channels are also needed for use in aircraft subsystems: a unified (integrated) display system, navigation system, automatic control system, weapon control system, power plant control system, while local channels should make maximum use of the logical organization and circuit-technical solutions of intersystem ICIE.

 Known devices for controlling aircraft using on-board computer centers, including several subsystems. Each subsystem of on-board equipment is connected to the multiplex bus via an interface device (communication adapter), which can also perform the functions of a multiplex channel controller (ASP / K). The choice of the principle of formation of such devices determines their structural and logical organization.

 Analysis of the operation of microprocessor-based information exchange devices shows that the main difficulty in designing an ASP / K is a strict limitation on the processing time of the command word, which is 2-12 μs (determined by the maximum allowable pause between the end of the message and the transmission of the response word according to GOST).

 During processing of the command (response) word, the control device needs to carry out a series of logical operations on groups and individual bits of this word, which, when applying the microprogram processing method, requires the use of high-speed sectioned and single-chip microprocessor sets.

 It should be noted that when transmitting information in a format for processing an information word, 20 µs is already allocated, i.e. the resource of high-performance MP is used irrationally.

 The absence of high-speed single-chip MPs necessitates the use of partitioned MPs of the 585, 1802, 1804 series in an ASP / K, while the power consumption will be 2.5 W. In addition, the most optimal option at this stage of the development of microelectronics is the hardware-software and hardware-firmware method for the formation of ASP / K. In this case, one part of the functions of the device must be performed by hardware, and the other by software or firmware.

 It should also be noted that currently there is a clear tendency to build SIO on the basis of communication lines of various physical nature: wire communication lines (PLC) and fiber-optic communication lines (FOCL), and the inter-system and local MCIs that are part of the SIO can be of the same type (fully wired or fully fiber optic), or combined. Combined MKIO can contain as the main transmission line - PLC, as a backup - FOCL; or as the main - FOCL, as the backup - PLC; or with a mixed type of interface MKIO - the command line is made on the PLC, and the information line is on the fiber optic link.

 The trend in the use of communication lines of various physical nature in the integration of on-board equipment is also observed abroad. When transmitting information via PLC, the regulatory document is MIL STD 1553 (STANAG 3838), when transmitting via FOCL, MIL STD 1773, and when organizing the ICIE with a mixed interface (PLC command line + FOCL information line), the regulatory document is STANAG 3910.

 A device for information exchange, which is used for vehicles, includes a central processor and contains a communication controller / adapter of the corresponding subsystem, connected by its inputs and outputs to the information exchange line, and other inputs and outputs with a common bus of the subsystem calculator, which is connected with a terminal device, and including an adapter for communication between the information exchange line and the local bus, the first mentioned inputs and outputs are formed by one of its inputs and outputs s of the controller / adapter and which is connected to the control device by other inputs and outputs through the local bus, the communication adapter of the information line with the local bus includes an encoder and decoder, means of monitoring and providing message formats, the first inputs and outputs of the communication adapter of the information line with the local bus is equipped with galvanic isolation, the encoder contains a buffer connected to a register with parallel input and serial output of information associated with the encoder, configured to generating a signal in a Manchester II serial code with the addition of a clock pulse and an additional test bit and through a blocking unit connected to an information transmitter transmitting, depending on the state of the decoder, a synchronizer associated with the shift register with parallel output of information, an error detection unit included with the ability to perceive information simultaneously with writing it to the said register, the control device is designed to provide controller mode and it is possible to check the duration of the pause between the transmitted and received response messages of the controller / adapter, check the correspondence of the operation mode of the controller / adapter to the type of the received message if the latter arrives in the appropriate time frame, identify coding errors of the response word in the message received in response to a direct call to to the subscriber of the system, saving - in the absence of coding errors - the response word in the memory and the subsequent verification of the correspondence of the address part of the response of the word to the subscriber’s address with which information is exchanged, checking the subsystem’s employment in the case of establishing this correspondence and transferring the controller / adapter to the next communication session, if the subsystem is not busy, the terminal device is designed for continuous operation in the standby mode for receiving and receiving messages and is executed with the ability to check the received message for the presence of the command word (US patent N 5007050). However, the use of this device specifically for organizing information exchange in on-board systems of aircraft is very difficult.

 When organizing combined MKIO with the main communication line of the PLC, and the backup FOCL, the channel capacity is limited by the capabilities of the PLC, which reduces the efficiency of using the FOCL, however, an increase in the speed of information transfer is advisable only with a corresponding increase in the speed of information processing by computer system processors, i.e. its hardware improvements both in terms of transceiver devices and computers. Expert assessments and the experience gained in combining equipment at the system and intersystem levels shows that intersystem information traffic is 5-8 Mbit / s, and the need to transfer large amounts of information at a speed of 10-100 Mbit / s arises only when solving problems of aiming, radar, cartography and indications and can be solved by the introduction of additional local channels. As a result, wired communication lines remain the main medium for transmitting information to the SIO of modern combat aircraft, and the possibility of increasing the transmission speed up to 10 Mbit / s, the development of the technology for manufacturing and laying wire connections make them promising in the near future.

 Fiber-optic communication lines are of undoubted interest for the development of SIO due to the wide bandwidth, insensitivity to electromagnetic interference, fire safety, but the widespread use of fiber optic communication lines in on-board equipment is hampered by sensitivity to negative temperatures, low radiation resistance, low technical characteristics of receivers and transmitters, and inadequate manufacturing technology and cable routing. In this regard, it seems that a certain period of PLC and FOCL will exist together on board aircraft, mutually complementing each other as equal elements of combined SIO (Fig. 1), the efficiency of use of which is determined not only by the medium of information transfer, but also by the logical organization its transmission, network topology, as well as the capabilities of the element base.

 In networks with FOCL, the same types of topology are used as in networks with PLC: serial, ring, radial, and combinations thereof. Moreover, sequential and circular, and at the local (intra-systemic) level, radial point-to-point structures are more often used as intersystem ICIE. The organization of radial structures at FOCL does not have significant differences from the organization of radial structures at PLC. Features of the organization of the backbone structures at the fiber optic link are determined by the use of both active repeaters (switches) and passive splitters or couplers of optical power. The use of passive splitters on board is more preferable, since their failure is possible only in the case of mechanical failure, while failure of any element of the electrical circuit or power failure leads to failure of the active element of the structure.

 The implementation of FOCL backbone structures based on couplers is ambiguous, due to the use of various types of active and passive couplers. When creating ICIE, working, for example, in accordance with MIL STD 1773, you can specify 10-15 trunk structures on the passive elements of the fiber optic link. However, not all of them can be implemented at present due to the imperfection of the technical characteristics of the FOCL elements, which should provide a sufficient level of optical power in the line necessary for receiving the transmitted information with a given error probability.

 The first group of factors characterizes the technical level of the state of development and as the design and manufacturing technology of fiber optic elements improve, the characteristics will improve and, as a result of this, the types of structures used will expand. The second group of factors is practically characterized by a constant value of losses for each specific structure and, therefore, determines the marginal possibilities for the implementation of the structure, for example, by the number of subscribers. A preliminary analysis of the domestic fiber optic component base shows that for the implementation of MKIO, MIL STD 1773 only structural organizations on the Zvezda splitter provide 32 subscribers.

General requirements for on-board SIO:
- high noise immunity due to the use of fiber optic communication lines;
- high performance due to the maximum use of the group command mode for processing large amounts of information;
- short reaction time, i.e. minimum access time to the transmission bus to allocate the maximum time for processing information;
- the ability to quickly detect errors and correct them; Serving up to 32 subscribers with various levels of intelligence; application of unified circuit-technical solutions using microprocessors for the implementation of terminal devices (controllers).

 The principle of magistracy, programmability and modularity, which is the basis for the organization of combined SIOs, as well as the observance of the software and constructive compatibility of the interface devices, give them great flexibility, i.e., architectural multivariance, scalability and the ability to reconfigure onboard equipment in the process of performing tasks.

 The technical result of this invention is the creation of an information exchange system adapted for an aircraft control device. In this case, in order to optimize the device for the power consumption and the number of IP and SIS cases, it is important to balance functions between hardware and software, the technical result is achieved by the fact that the combined information exchange system includes a central processor and contains a communication controller / adapter of the corresponding subsystem connected by one of its inputs and outputs to the information exchange line, and by other inputs and outputs - with a common bus of the subsystem calculator, which I am connected with a terminal device, and which includes an adapter for connecting a data exchange line to a local bus, one of the inputs and outputs of which forms the first mentioned inputs and outputs of a controller / adapter and which is connected to a control device by other inputs and outputs through a local bus, a line communication adapter information exchange with a local bus includes an encoder and a decoder, means of monitoring and providing message formats, the first inputs and outputs of the communication adapter of a data exchange line with a local bus sn Shown by galvanic isolation, the encoder contains a buffer connected to a register with parallel input and serial output of information associated with the encoder, configured to generate a signal in a serial code of Manchester II with the addition of a clock pulse and an additional check bit and through a blocking unit connected to the information transmitter that implements transfer depending on the state of the decoder containing the synchronizer associated with the shift register, with the parallel output of information, block detecting an error included with the possibility of perceiving information simultaneously with recording it in the aforementioned register, the control device is designed to provide the controller mode and is configured to check the duration of a pause between the transmitted and received response messages of the controller / adapter, to verify compliance of the controller / adapter operation mode with the type of received message in case of receipt of the latter in the appropriate time frame, detection of coding errors of the response word in the message, in response to a direct call to the subscriber of the system, saving - in the absence of coding errors - the response word in the memory and then checking the correspondence of the address part of the response word to the address of the subscriber with whom the information is exchanged, checking the subsystem’s employment in case of establishing this correspondence and transferring the controller / adapter in the next communication session, if the subsystem is not busy, the terminal device is designed for continuous operation in the standby mode of receiving and receiving messages and is made with possible The method of checking the received message for the presence of a control word is characterized in that the control device is configured to check the number of received information words — when operating in the mode of receiving information words and when there are no coding errors — and transfer the controller / adapter to the next communication session if the number of received information words corresponds to the specified, and in case of failure of any of the above conditions in the process of receiving information - the formation of the corresponding message to the central processor and installed if the sign of the corresponding failure occurs and it is written to the register of the controller / adapter status word, the terminal device is capable of checking the absence of coding errors for the command word, checking for the address contained in the command word - if there is no sign of a group command - with the address of the terminal device, and then executing the command and the formation of the response word to the controller / adapter, or upon detection of a group command - check for the absence of a sign of blocking its reception, correspondence If the command word contains the address of the terminal device, its list of commands executed by the terminal device, and, if any of these conditions is not met, the response word and status word are formed with an indication of the corresponding error, the decoder is equipped with a unit for correcting a single error at the address of the detected errors and the value of the check bit associated with the error detection unit, and the controller / adapter is equipped with a communication adapter for connecting the local bus to the common bus , One of the inputs and outputs connected to the local bus, the other inputs and outputs are formed by said second controller and inputs / outputs adapter. As a line of information exchange used a wired communication line or fiber optic communication line.

 The control device includes a means of test control of the system.

 If there are zones of concentration of electronic equipment on the aircraft (LA), the trunk structure can be made in the form of interconnected "stars" with up to 10 subscribers. The FOCL trunk structure on T-shaped couplers can connect up to 5 subscribers with a maximum capacity of 20 subscribers. When choosing the final version of the implementation of the structure of information exchange, several criteria are used: mass, energy consumption, noise immunity, information efficiency, simplicity of logical organization. Therefore, when constructing a combined ICIE containing, as the main transmission line of information from the PLC, and as a backup fiber optic link, the fundamental principle is to preserve the logical organization of the exchange, which minimizes the energy consumption and the amount of equipment of the entire ICEC as a whole and interfacing with a multiplex bus capable of receiving and transmitting information on PLC and FOCL.

 If the control word is processed with hardware, then it becomes possible to use single-chip MPs with average speed characteristics of such series as 1810 and 580, which entails a reduction in the power consumption of the ASP / K.

 Structurally, the TSA / K should include a control device, a local bus, and two communication adapters (Fig. 1).

 Then the functionally hardware part of the ICIP will be a combination of three buses (multiplex, local and common), two communication adapters and a control device.

 Technical requirements, the possibility of implementation and the conditional complexity of the functional units of the combined ICIE are given in table. 1 and 2.

 After transmitting the message to the multiplex channel, the controller switches to the control mode for the exchange of information between the ICIE subscribers and the line starts listening for the message. In the event of a message, a check of the shutter speed of the minimum pause is performed according to GOST. If the message has not arrived within a pause longer than the maximum allowed by GOST, the sign “No response word” and “Error in message” are set in the controller status word register.

 The controller notifies the central processor of the failure and proceeds to the appropriate program for processing the situation.

 If the minimum pause between messages is not sustained, the controller sets the status word “Pause failure” in the status word register and performs the same operations as if there was a pause longer than allowed by GOST.

 When a message arrives within the time limits of GOST, the controller analyzes the operation mode of the MCIS for the presence of multicast and, if a message is received in response to a multicast command, which indicates a channel malfunction, sets the status words “MLP busy,” “Error in message” in the status word register , reports to the central processor about the failure in the channel and proceeds to the corresponding program to handle the error situation.

 If the message is received in response to a direct call to the subscriber of the ICIP, the controller checks the incoming word for compliance with its response.

 If a response word is found, the analysis of the absence of coding errors is performed in accordance with GOST.

 If an error in coding is detected, then the sign “Error in message” is set in the status word register, a failure in the channel is reported to the central processor and the controller proceeds to the error processing program.

 In the absence of errors in the encoding of the response word, it is stored in the controller's memory, and then it is checked for correspondence of its address part to the address of the subscriber with whom the exchange is carried out via the ICSE.

 In the event of an address mismatch (a response was received from a subscriber with whom there is no exchange), in the register of the controller status word are set the signs "Failure at address in the response word", "MLPI busy", "Error in message". The central processor is notified of a failure in the channel and the controller proceeds to the corresponding error handling program.

 When the controller does not find the setting in the response word above the indicated bits, it checks the subsystem busy by the corresponding attribute in the response word, and if it is busy, it reports this to the central processor and proceeds to the subsystem busy case processing program. If there is no sign of subsystem busy, the controller proceeds to the next exchange session with the ICIP subscribers.

 If the controller receives an information word instead of the expected response, it sets in the status word register the signs "MLI busy", "Error in message". The central processor is informed of a failure in the channel and a transition is made to the corresponding error handling program.

 If there is a mode for receiving information words, the controller receives the word, checks for any errors in coding, and if they are detected, it stops receiving, sets the sign "Error in message" in the status word register, reports to the central processor about the channel failure and goes to the corresponding error handling program.

 If there are no errors in the encoding, the controller checks the accepted number of words, and if not all information words are accepted, then it analyzes the presence of a pause between the words and, if there is no information, takes the next information word.

 If a pause between information words is detected, the controller stops receiving the message, the signs “Failure by the number of information words” and “Errors in the message” are set in the status word register. The central processor is notified of a failure in the channel and the controller proceeds to the corresponding error handling program.

 When the controller has received the required number of information words, it checks for at least one extra word in the message and, when it is detected, stops receiving, sets the status word “Failure in the number of information words” and “Error in message” in the status word register, informs the central processor about a failure in the channel and goes to the appropriate error handling program. If the received message does not contain unnecessary information words, then the controller proceeds to the next exchange session on the ICIP.

 The controller operation algorithm for channel exchange control is shown in FIG. 2.

 The terminal device is constantly in standby mode for receiving messages from the ICIP. The received message is checked for the presence of a command word (CS) in it. In the event that the word is informational (IS), the OS returns to the initial state of waiting for a message, and the detected CS is checked for coding accuracy (oddness check, compliance with the word format). If a coding error is detected, the op-amp returns to the message waiting state, and the received SC is not accepted for further processing. When there is no coding error, the CS checks for the presence of a group command. If there is no group command attribute in the received CS (the first five bits of a unit), the address contained in the command word is compared with the address assigned to this terminal device. If the address does not match, the op-amp goes into message standby mode.

 When a group command is detected, a check is made for the presence of blocking the reception of a group command; if the reception of the group command is blocked, then the op-amp goes into the standby mode of the message. If a group command is received, there is no sign of blocking its reception, and the address in the CS corresponds to the address of the OS, the command word is accepted for processing and stored in the corresponding memory area of the OS (CS register), after which the presence of the control mode is checked (sub-address 11111). If this is a control mode, then a control command is determined and its compliance with the list of commands executed by the op-amp. When the OS detects the fact that this command does not belong to its list of commands, the “Error in message” flag is set in the response word and status word. In the status word, the sign "Invalid command" is set, and the op-amp goes into the standby mode of the message. When the control command belongs to the list of commands executed by the op-amp, the presence of group mode is checked in order to determine the need for the response word.

 If a non-group command is received, then the response word is transmitted to the ICIP controller and the command is executed, after which the OS returns to the message standby mode. In the case of a group command, the sign “Group command received” is set in the response word and status word, the response word is not transmitted, and the op-amp goes into the message standby mode.

 If there is a lack of control mode, the op-amp denies the subsystem calculator access to the shared memory, then the number of words in the message and the data sub-address are determined. In addition, it determines the need for receiving or transmitting DT information words on a receive / transmit bit in a control word. When determining the mode of receiving information, the subaddress is added to the database N1, then a pause of 12 microseconds is determined, and in this case the sign "Error in message" is set in the response word and status word; in the status word, the sign “No response word” is set, i.e. the command passed in a format of 2 command words and no response word was received from the transmitting op-amp within 10 μs after the end of the message.

 The response word is not issued; The op-amp allows the subsystem calculator access to the shared memory and enters the message standby mode. If there is no pause after receiving the CS, then the information word is received, the coding error is checked, and if the coding error is detected, the sign "Error in message" is set in the response word and status word; The op-amp allows the subsystem calculator access to the shared memory and enters the message standby mode. If there is no coding error, it checks the acceptance of the number of ICs specified by the controller by comparing the number of ICs in the received SC with the number of received ICs. If not all words are accepted, then a pause between messages is checked.

 When it is detected, the sign “Error in the message” is set in the response word, and “Failure in the number of ICs” in the status word. The op-amp allows the calculator access to the shared memory and enters the message standby mode. After the OS has determined that all of the indicated IPs have been accepted, the presence of at least one additional IP in the message is checked, and in this case the signs "Error in the message" and "Failure in the number of IPs" are also set.

 After receiving the last IP, a pause is maintained in accordance with GOST 2676552-87, the response word is transmitted, and the op-amp goes into the message standby mode. In the case of determining the transmission mode of the OS, it adds up the N2 database with the subaddress contained in the CS; the response word is transmitted, then the information word is transmitted, the presence of an error in the encoding is determined; if there is an error, then the sign "Error in the message" is set in the response word and the status word the sign is set to "Transmission failure"; The op-amp allows the subsystem calculator access to the shared memory and enters the message standby mode.

 When there is no coding error, then it is checked whether all information words are transmitted in accordance with the indicated number in the command word and if it turns out that not all are transmitted, the next information system is transmitted; if all words are transmitted to the subsystem calculator, access to the shared memory is allowed and the op-amp goes into message standby mode.

 The operation algorithm of the terminal device, invariant to the hardware implementation, is shown in Fig.3.

 The encoder is designed to convert a parallel 16-bit code into a serial bipolar phase-shifted code (Manchester II) for transmission over the CMRC.

 Through the MP buffer, information in the form of a 16-bit parallel code is recorded in the shift register, with the help of which it is converted into a serial NRZ code. The serial NRZ code is sent to the encoder, which generates a clock pulse, converts the serial NRZ code into a bipolar phase-shifted code and completes the parity bit.

 The pause reduction device reduces the delay in encoding information to a minimum delay of 350 - 500 ns. Information in accordance with GOST enters through the blocking unit to the transmitter (PR), which transmits information to the corresponding information transmission line, depending on the status of the "LPI Status Register" of the decoder. The decoder is designed to convert a sequential bipolar phase-manipulated code (Manchester II) coming from the ICIE into a parallel 16-bit code. It checks the format of words, detects and corrects single errors in the word, provides information about errors in the message, determines the command words addressed to this device.

 A sequential phase-shifted code (Manchester II) received from the ICIE and converted into TTL levels by a receiver (PrM) is fed to the synchronizer input. In the synchronizer, pulses are synchronized with a clock frequency of 2 MHz. Here, the synchronization of the command or data is also highlighted.

 The received information in the decoder is converted from the "Manchester II" code into the NRZ code and is recorded in the shift register, where it is converted into a parallel code.

 Simultaneously with the recording in the shift register, the information enters the error detection unit, where in the event of an error, the address of this error is stored. The error information is to prohibit the combination of 00 and 11 on the same clock interval.

 After the whole word is accepted, it enters the error correction unit, where single errors are corrected. The corrected word is copied to the buffer of the common microprocessor bus, and the command word is written to the output register, and the command word is copied when it is addressed to this device, which provides a block for determining the address of the ASP.

Claims (4)

 1. A combined information exchange system, including a central processor and containing a communication controller / adapter of the corresponding subsystem, connected by its inputs and outputs to the information exchange line, and other inputs and outputs - with a common bus of the subsystem calculator, which is connected to the terminal device, and including an adapter for communicating with the local bus, one of the inputs and outputs of which forms the first mentioned inputs and outputs of the controller / adapter and which is different with inputs and outputs through a local bus it is connected to the control device, the communication adapter of the information exchange line with the local bus includes an encoder and decoder, means for monitoring and providing message formats, the first inputs and outputs of the communication adapter of the information exchange line with the local bus are galvanically isolated, the encoder contains a buffer connected to a register with parallel input and serial output of information associated with the encoder, configured to generate a signal in series Ohm code of Manchester II with the addition of a clock pulse and an additional check bit and through a block block associated with the transmitter of information, transmitting depending on the state of the decoder containing the synchronizer associated with the shift register with the parallel output of information, an error detection unit, included with the ability to perceive information at the same time recording it in the aforementioned register, the control device is designed to provide controller mode and is configured to check the length pause between the transmitted and received response messages of the controller / adapter, checking the correspondence of the operating mode of the controller / adapter to the type of received message if the latter arrives in the appropriate time frame, identifying coding errors of the response word in the message received in response to a direct call to the subscriber of the system, saving - in the absence of coding errors - a response word in the memory and subsequent verification of the correspondence of the address part of the response word to the address of the subscriber with whom There is information exchange, checking the subsystem’s employment in the case of establishing this correspondence and transferring the controller / adapter to the next communication session, if the subsystem is not busy, the terminal device is designed for continuous operation in the standby mode of receiving and receiving messages and is configured to check the received message for command words, characterized in that the control device is configured to check the number of received information words when operating in the mode of receiving information words and due to coding errors - and transferring the controller / adapter to the next communication session, if the number of received information words corresponds to the specified one, and if any of the indicated conditions is not met during information reception, the corresponding message is generated to the central processor and the sign of the corresponding failure is detected and recorded in the register of the status word of the controller / adapter, the terminal device is configured to check for the absence of coding errors of the control word, to check if the address a message contained in the command word, if there is no sign of a group command, with the address of the terminal device with the subsequent execution of the command and generating a response word to the controller / adapter, or, if a group command is detected, check for the absence of a sign of blocking its reception, matching the address contained in the command the word, the address of the terminal device, its membership in the list of commands executed by the terminal device, and in case of failure to fulfill any of these conditions, the formation of the response word and word with states indicating the corresponding error, the decoder is equipped with a single error correction unit at the address of the detected error and the value of the check bit associated with the error detection unit, and the controller / adapter is equipped with a communication adapter for connecting the local bus to the common bus, one of the inputs and outputs is connected with a local bus whose other inputs and outputs form the second mentioned inputs and outputs of the controller / adapter.  2. The system according to claim 1, characterized in that a wireline is used as the information exchange line.  3. The system according to claim 1, characterized in that the fiber-optic communication line is used as the information exchange line.  4. The system according to any one of claims 1 to 3, characterized in that the control device includes means for testing the system.

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