Spark-safe instrument for technical service under field conditions

FIELD: technology for testing and controlling systems or elements thereof.

SUBSTANCE: spark-safe instrument for technical service in field conditions includes connectors, first and second elements for accessing data transfer environment, while first element for accessing data transfer network is made with possible communication in accordance to first industrial communication protocol standard, second element for accessing data transfer network is made with possible communication in accordance to second industrial communication protocol standard, processor, keyboard, display, and also either infrared port or replaceable memory block, or memory extension block. Invention includes diagnostic methods, realized by spark-safe instrument for technical service purposes in field conditions.

EFFECT: simplified display of diagnostic information.

11 cl, 7 dwg

 

Intrinsically safe tools for maintenance in the field is well known. Such tools are extremely useful in the field of process control and measurement, allowing operators to communicate and/or to request a field device in a given process unit. Examples of such processing units include petroleum, pharmaceutical, chemical, pulp and other process plants. In such installations, the network management process and measurement may include tens or even hundreds of different field devices requiring periodic maintenance to ensure their proper functioning and/or calibration. Moreover, when it detects one or more errors in the process control system and measuring the use of intrinsically safe hand tools for maintenance in the field enables technicians to quickly diagnose such errors in the field.

One such device is sold under the trade name Model 275 HART® Communicator and available from Fisher-Rosemount Systems, Inc., Eden Prairie, Minnesota. HART® is a registered trademark of the HART® Communication Foundation. Model 275 provides a set of important features and capabilities, and in General allows extremely efficient order the service in the field. However, in the present Model 275 can't communicate with device types other than HART® (Addressable Remote Trunk Converter).

The HART Protocol® has a hybrid physical layer, which includes a digital communication signals superimposed on a standard analog 4-20mA signal. The data rate is about 1.2 Kbit/s. Communication system HART® is one of the main communication protocols in the manufacturing industry.

The other main Protocol communication in the manufacturing industry is known as the communication Protocol FOUNDATION™ Fieldbus. The specified Protocol is based on standard ISA (ISA S50.01-1992). The practical implementation is defined by the Fieldbus FOUNDATION (FF). FOUNDATION™ Fieldbus is a fully digital Protocol communication with a baud rate of approximately 31.25 Kbit/s.

Known intrinsically safe tools for maintenance in the field is not able to communicate effectively using several standards industrial protocols. The provision of a device made with the possibility of working with several industrial standards protocols, and effective specific Protocol options calibration and configuration, would have significant success in this field of technology.

Improved intrinsically safe is a tool for maintenance in the field. The tool is designed to work with the lines of communication process in accordance with the set industrial standards protocols. Aspects of the present invention include distinctive features relating to hardware, such as an infrared port; block removable memory and the expansion unit memory. Additional aspects of the present invention include specific Protocol, the diagnostic methods that are implemented with improved intrinsically safe instrument for maintenance in the field.

Fig. 1 illustrates a multi-point wired system.

Fig. 2A and 2B illustrate how the connection of intrinsically safe instrument for servicing field devices of the process.

Fig. 3 is a block diagram of the instrument for maintenance in the field according to a variant implementation of the present invention.

Fig. 4 is a flowchart of the first method of diagnosis-specific FOUNDATION™ Fieldbus, according to the present invention.

Fig. 5 is a flowchart of a second method for the diagnosis of specific FOUNDATION™ Fieldbus, according to the present invention.

Fig. 6 is a diagram of a screen structure according to a variant implementation of the present invention.

Improved iskrobezropasnyh the th tool for maintenance in the field according to the options of implementing the present invention are designed to work at least two industry standard device descriptions. In one specific embodiment of the invention an improved intrinsically safe instrument for maintenance in the field implements as HART®and Fieldbus description language devices (AO). An improved tool for maintenance under field conditions applicable to maintenance as two-wire and four-wire (i.e. with external power supply) field devices using these protocols. Preferably, configuration, and calibration supported Pomorski technology YOU. Technology AO is known, and additional information related to the description language devices may be found in U.S. patent No. 5960214 issued Sharp, Jr. and other

Improved intrinsically safe instrument for maintenance in the field also facilitates normal display diagnostic information from individual field devices (i.e. status bits), and also provides advanced Troubleshooting specific to this Protocol network problems. Additional details and advantages of the improved tool for maintenance in the field according to the options of implementing the present invention will be apparent after studied the I following description.

In Fig. 1 shows an illustrative system in which the applicable embodiments of the present invention. The system 10 includes a controller 12, a sub-14 I/o and control, barrier 16 intrinsically safe (is), line 18 connected with the process and the field device 20. The controller 12 is connected to the subsystem 14 I/o and control through the communication line 21, which may be any suitable communication link, such as a local area network (LAN)Protocol (Ethernet or any other suitable Protocol. Subsystem 14 I/o and control connected to the barrier 16 intrinsic safety, which, in turn, is connected to the line 18 through the process, providing data transfer between line 18 and subsystem 14 and I/o control method, bounding through his energy.

In this illustration, line 18 connected with the process or process control is a FOUNDATION™ Fieldbus communication line with the process and connected to the field devices 20, which are shown connected in a multidrop configuration. Alternative lines of communication with the process (not shown) is a HART® the communication process. In Fig. 1 shows a multidrop configuration of connections, which extremely simplifies the connection system compared with other topologies, t is Kimi as a star topology. HART multidrop® configuration supports a maximum of 15 devices, while multipoint FOUNDATION™ Fieldbus configuration supports a maximum of 32 devices.

Intrinsically safe instrument 22 for maintenance in the field is connected to the line 18, as shown in Fig. 1. When the specified process connection process control instrument 22 can perform a number of communication and diagnostic functions. The tool 22 can connect and interact with HART® the communication process in essentially the same way as the currently available Model 275.

Fig. 2A illustrates the tool 22, is connected to the HART®-compatible device 20 via terminals 24. Alternatively, the tool 22 can communicate with HART®-compatible device via the communication line with the measuring means of the process, as with the device 24 through the line, as shown in Fig. 2B.

Fig. 3 is a block diagram of the tool 22 for maintenance in the field according to the options of implementing the present invention. As shown, the tool 22 preferably includes three terminals 26, 28 and 30 of communication, facilitating the connection of the tool 22 to the communication lines with the processes and/or devices according to at least two industry standard protocols. For example, if the device is 22 must be connected to the line on the first industry standard Protocol, this connection is performed by using the terminals 26 and the common terminal 28. Respectively, then the connection is through the element 32 of the medium access data made with the possibility of interaction via communication with the process according to the first industry standard Protocol. Additionally, if the tool 22 must be connected to the line of measurement and control process according to a second industry standard Protocol, such connection is made through the common terminal 28 and terminal 30. Thus, the specified connection occurs through the second element 34 medium access data made with the possibility of interaction via communication with the process according to the second industry standard Protocol. Both elements 32 and 34 of the access to the data transfer medium connected to the processor 36 that receives the data from one of the elements of the medium access data and properly interpret the data.

The processor 36 is also connected to a block 38 of the keyboard and the display unit 40. Block 38 keyboard connected to the keyboard on the tool body 22 for receiving various keyboard input from the user. The display unit 40 is connected to the display for presentation of information and/or provide the user interface.

According to different variants of implementation of the infusion is his invention, the tool 22 includes additional hardware extensions, providing improved functionality as compared to the present level of technology. In one embodiment, the implementation of the tool 22 includes an infrared port 42 data access, connected to the processor 36, which allows the tool 22 to transmit information to and receive from a single device using infrared wireless communication. One of the predominant uses of the port 42 is transmitting and/or updating of device descriptions are stored in one or more storage devices of the tool 22. Device description (OS) is a software technology that is used to describe the parameters of the field devices in machine-readable format. This includes all information necessary for executing the application program by the processor 36 to obtain and use these settings. A separate device, such as computer 12, may get a new device description via floppy disk, optical disk or the Internet and wirelessly transmit a new device description in the tool 22.

Block 44 removable memory connected with the possibility of disconnection to the CPU 36 through the port/interface 46. Block 44 removable memory configured to save application programs that can be executed by the processor 36 instead of the main applications is the second. For example, the block 44 may contain applications that use HART® or FOUNDATION™ Fieldbus communication ports to provide a comprehensive diagnosis of this gate process. Additionally, the unit 44 may store application programs useful in the calibration or configuration of a particular device. Block 44 may also store a software image of a new or updated main application device, which can later be transferred to non-volatile memory of the processor 36, which will allow to execute the updated application. In addition, the block 44 provides a removable data storage device for configuration of multiple devices, allowing the operator maintenance in the field to work with relatively large amount of data devices and consistently retain or transfer such data by simply replacing the block 44.

Preferably, the block 44 is made with the possibility of replacement in dangerous areas of production. Thus, it is preferred execution unit 44 in accordance with the requirements of intrinsic safety established in: APPROVAL STANDARD INTRINSICALLY SAFE APPARATUS AND ASSOCIATED APPARATUS FOR USE IN CLASS I, II AND III, DIVISION 1 HAZARDOUS (CLASSIFIED) LOCATIONS, CLASS NUMBER 3610, published by Factory Mutual Research in October 1988. Also discusses modifications to meet additional industrial standards such as the standard of the Canadian standards Assotiation (CSA) and European CENELIC. Examples of specific structural modifications to the unit memory 44 and/or interface 46 for compatibility include schemes with limited power, such that the level of the operating voltage of the unit memory 44 is relatively low, so that the energy stored in the block 44, cannot serve as a source of ignition. Additionally, the unit 44 may include circuit current limit ensures that in case of short circuit certain terminals on the block 44, the discharge energy is low enough to prevent fire. Finally, the interface 46 may have physical characteristics that are specifically designed to prevent interaction between the electrical contacts on the block 44 memory with the external environment, and, at the same time, forming a suitable interface contacts for electrical contact with the block 44 memory. For example, the block 44 may include an outer cover, which may be pierced or otherwise resolved, when connecting block 44 to the interface 46.

The tool 22 preferably also includes a block 48 expansion memory connected to the processor 36 via a connector 50 which is usually located on the main Board of the instrument 22. Block 48 memory expansion can contain descriptions of devices on the first and second industrial standard there protocols. The block 48 may also contain the license code (s)that defines the functionality of the tool 22 in respect of multiple protocols. For example, the data contained in the block 48 may indicate that the tool 22 is authorized only for mode one industry standard, such as HART® the Protocol. Ultimately a different setup in the block 48 may indicate that the instrument is 22 authorized to operate according to two or more industry-standard protocols. The block 48 is preferably inserted into the connector 50 on the main Board, and, in fact, to access port 50 may require partial disassembly of the tool 22, such as removing the battery.

Improved intrinsically safe instrument for maintenance in the field, described above, allows advanced diagnostics specific to Fieldbus and HART®as described in more detail below.

Fig. 4 is a block diagram of a first specific Fieldbus, method of diagnosis performed using an improved intrinsically safe instrument for maintenance in the field, according to the modalities for the implementation of the present invention. More precisely, if the tool 22 is first connected to the N1 segment (the transmission line based on twisted pair) tool 22 identifies all devices podsoednineny is to this segment, as shown by step 60. This identification is performed regardless of the "live list". "Living list"as used in the present description means a list of nodes which device is the master identified in the network, and the specified list circulates between network devices-masters. Preferably, the software options in the tool 22 allow the user to skip the survey of all addresses that are performed on the stage 60, and simply instruct the tool 22 to use an existing live list. After identification of all connected devices identified for the list of connected devices can be compared with the "live list" to identify differences between real devices found in the N1 segment, and a living list, as shown by step 62. This comparison can be used to generate the issuance of diagnosis, as shown by step 64. Preferably, the service operator in the field can perform a test on request from the keyboard (not shown).

Fig. 5 is a flowchart of a second method for the diagnosis of specific FOUNDATION™ Fieldbus performed variants of implementation of the present invention. At the beginning of the method according to Fig. 5 the tool 22 very quickly associated with each identified device on the segment N1, as indicated by step 70. SL is blowing to the rules of the communication Protocol, the tool 22 passes each device as many messages as possible. At step 72, the tool 22 generates a list of all errors found for each node on the segment N1. At step 74, the tool 22 forwards the list of communication errors detected on the segment N1, as indicated by step 74. This shipment can be sent the relevant information to the control room, or a simple display such a list through the user interface of the tool 22. Devices on the segment N1, showing the level of communication errors higher than average, you may experience periodic failures associated with them. Typical failures include loss of connection, faulty termination, failure of electronics and/or related to topology. Preferably, the tool 22 there are software options that allow the user maintenance in the field to select a single site for the survey instrument 22 for communication errors.

The tool 22 can also measure additional characteristics of the segment of the FOUNDATION™ Fieldbus, to which it is connected. More precisely, the tool 22 can be used to measure the noise level in the Fieldbus segment. Preferably, the tool 22 uses one or more frequency-selective filters for measuring the amplitude of the signal within the selected floor is si frequency. For example, the tool 22 preferably uses a lowpass filter to highlight the low-frequency component of the noise present in the Fieldbus segment. This option may provide the operator with maintenance in the field a variety of information to help identify faults. More precisely, it may indicate a problem related to a failure in the power supply. Additionally, the tool 22 can use a bandpass filter to enhance the information about the noise in the frequency domain, in the field of signal frequencies FOUNDATION™ Fieldbus, during the time interval between messages. This option may provide the operator with maintenance in the field a variety of information to help identify faults, because the noise in the area of signal frequencies FOUNDATION™ Fieldbus can do real signal FOUNDATION™ Fieldbus very unstable. Additionally, the tool 22 can also be used to measure the capacitive characteristics of the segment of the FOUNDATION™ Fieldbus. Information about capacitive characteristics can be used to detect problems with shielding or grounding.

Improved intrinsically safe instrument for maintenance in the field can also be used to perform diagnostic operations that are specific to HART . For example, the tool 22 is preferably made with the possibility of communication with the use of two separate voltage levels for communication systems HART®. The first level (normal) voltage for HART communication® is chosen to satisfy the specifications of HART®above. However, the second voltage level is intended for connection of the tool 22 in the advanced mode of communication in which the tool 22 generates a stronger signal than required by the specification HART®and listens for response to signals weaker than the allowable normal specification HART®. Preferably the method for diagnosis of network HART® includes sending a blank command HART® for each network address HART® in normal mode. The counter of sent messages is incremented each time the tool 22 is trying to establish a connection to this address HART®. If the tool 22 response received without error, the diagnostic tool in the tool 22 increments the counter good responses received at this address, and the diagnostic method moves to the next address. However, in the presence of any errors in the response from the selected address in the network, or the lack of response tool 22 moves to the enhanced communication mode. In the advanced mode of communication uses a higher voltage level to generate the of Ignatov HART® that have amplitudes which exceed the permissible normal specification HART®. If a response is received without errors from the selected network node in the advanced mode of communication, counter weak response from the network address is incremented. The tool 22 moves to the next network address and continues to check all addresses in the network until the operator maintenance in the field will give the tool 22 statement stop, or will happen in the event of automatic power-off. Preferably, the software tool 22 allows the user maintenance in the field to select a specific network address HART® for the query. In addition, preferably it is also possible to select groups of network addresses. Thus, the operator maintenance in the field could, for example, to selectively poll address 0, 1 and 4.

In Fig. 6 schematically shows the organization of the screen, reflecting information related to the diagnostic results, specific to the network HART®on the display 80 according to the modalities for the implementation of the present invention. The display 80 in some embodiments, the implementation displays the data related to all 16 addresses segment HART®. However, it is clear that the organization is conveniently readable display to outputresource one or more screens to display all 16 addresses. Preferably, the display 80 contains an element 82, which provides information related to the constant line voltage. Element 84 displays the address of the HART® check device and preferably shows only devices HART®set to scan. Element 86 "Sent Messages" displays the total number of messages HART®sent at a particular address. It should be noted that all the counters are preferably issued *** in case, if the number of digits exceeds the allowed in this column. In this case, the total number of sent messages will be available on the details screen, if the operator maintenance in the field will select the element 88 details regarding the selected device address. Item 90 "Good Answer" and the element 92 "Weak Response" shows the total number of responses in normal alarm mode and advanced mode signaling, respectively. Element 94-quality network displays the word characterizing the quality of communication observed for a specific address. Preferred levels and proposed names are:

A - good - network HART® can be used with standard HART modems®such as multiplexers and commercially available measuring systems for the continuous collection of data on the device. The network may be used to collect continuous data from the device;

In normal network HART® can be used with standard HART modems®such as multiplexers and commercially available measuring system for configuration and verification status of the device. The network can be used for device configuration with standard HART modems®. The network is not reliable enough for continuous flow of data from devices for advanced diagnostics, such as characteristics of the valve;

With weak network HART® can only be used with the tool 22 in the advanced mode of communication. The network device does not work reliably with multiplexers or other commercially available products HART®; and

D - device - network HART® unhealthy.

Additional elements of the display 80 shows the elements 96, 98 and 100. The element 96, the selected operator maintenance in the field, selectively starts and stops scanning the network. Element 98 selects a specific address HART® for scanning. And, finally, the choice of element 100 allows the operator maintenance in the field to exit this screen.

After the operator maintenance in the field have chosen a specific address HART® on the screen is not, when you select an item 88 "details" tool 22 provides the full value of the counter for messages all sent, all good and all weak. In the elements, showing the details may be made scrollable list of arbitrary length last bad response, including the time of receipt and a detailed description of the error, such as a malformed response and cyclic redundancy code (CEC).

In conclusion, improved intrinsically safe instrument for maintenance in the field includes a number of hardware improvements, as well as improved diagnostic capabilities of networks that are specific to industrial protocols. Improved intrinsically safe instrument for maintenance in the field can preferably be used with many lines of measurement and communication processes with one or another industry standard communication Protocol. Thus, from equipment maintenance in the field is not required to carry many separate handheld devices in the field, but it can mainly be using one tool to communicate with multiple nodes industry standard.

Although the present invention has been described with references to preferred embodiments of specialists in this field of technology nudeporno, what can be done changes in form and detail without departure from the essence and scope of the present invention.

1. Intrinsically safe instrument for maintenance in the field, including terminals, selectively connected to the communication line with the process with industry standard communication Protocol; first and second access elements of the environment data, connected to the terminals, and the first element of the medium access data is executed with the possibility of communication according to the first industry standard communication Protocol, and the second element of the medium access data is executed with the possibility of communication according to the second industry standard communication Protocol; a processor connected to the first and second access elements of the environment data; a keyboard connected to the processor for receiving user input; a display coupled to the processor for displaying data; infrared port connected to the processor for wireless communication with an external device.

2. Intrinsically safe instrument for maintenance in the field, including terminals, selectively connected to the communication line with the process with industry standard communication Protocol; first and second access elements of the environment data, connected to the terminals, and the first choice of the element of the medium access data is executed with the possibility of communication according to the first industry standard communication Protocol, and the second element of the medium access data is executed with the possibility of communication according to the second industry standard communication Protocol; a processor connected to the first and second access elements of the environment data; a keyboard connected to the processor for receiving user input; a display coupled to the processor for displaying data, and block removable memory, coupled with the ability to detach from the processor.

3. The tool according to claim 2, in which the memory block is configured to retrieve in a hazardous environment.

4. The tool according to claim 3, in which the replaceable unit memory has a schema constraints energy selected to implement the requirements of intrinsic safety.

5. The tool according to claim 2, in which the replaceable unit memory contains an application program executed by the processor.

6. The tool according to claim 2, in which the replaceable unit memory ensures that data is stored device configuration.

7. Intrinsically safe instrument for maintenance in the field, including terminals, selectively connected to the communication line with the process with industry standard communication Protocol; first and second access elements of the environment data, connected to the terminals, and the first element of the medium access data is executed with the possibility of communication according to the first industrial is the standard communication Protocol, and the second element of the medium access data is executed with the possibility of communication according to the second industry standard communication Protocol; a processor connected to the first and second access elements of the environment data; a keyboard coupled to the processor, for receiving user input; a display coupled to the processor, for displaying data; the expansion unit memory connected to the processor via a connector placed on the main Board.

8. The tool according to claim 7, in which the expansion unit contains data related to the authorization Protocol.

9. The tool according to claim 7, in which the expansion unit contains the data, which authorizes additional applications.

10. The tool according to claim 7, in which the expansion unit contains data related to the set of device descriptions, and the first description of the device from the specified set is a description of the Fieldbus device and the second device description from the specified set is a description of the HART device.

11. The way to diagnose Fieldbus communication line with the process, intrinsically safe instrument for maintenance in the field, involving the identification of devices on the line; comparing the list of identified devices on the line with a live list and the generation of diagnostic issue based on the data comparison.

12. The method according to claim 11, which also includes the update of the live list.

13. The way to diagnose Fieldbus communication line with the process, intrinsically safe instrument for maintenance in the field, including the relationship turns, quickly, with each device on the line; list entry errors for each device on the line and sending data related to communication errors.

14. The method according to item 13, which also includes the update of the live list, based on communication errors.

15. The method of diagnostics of HART communication line with the process, intrinsically safe instrument for maintenance in the field, including an attempt communications with the HART device on the line in the normal communication mode; monitoring the availability of the response received from the HART device related to the normal connection attempt; attempt communications with the HART device in the advanced mode of communication; monitoring the availability of the response received from the HART device related to the attempt of the extended communication; generating diagnostic information based at least on one of the following observation: observation of normal responses, observation of extended responses, observation of the lack of answers.

16. The method according to item 15, on which the diagnostic information indicates the possibility of communication with the device.

17. The method according to item 15, on which diagnostics the optical information indicates the possibility of communication lines.



 

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EFFECT: increased time period of pressure regulator maintenance due to its operation in mode of power saving.

47 cl, 19 dwg

FIELD: technology for controlling meteorological protection, possible use for actively influencing atmospheric processes to alter weather conditions.

SUBSTANCE: system for controlling meteorological protection of populated territories provides automated coordination of active point effects onto centers of micro-physical processes in atmosphere of protected populated territories in moments of their appearance, if locations of centers of these processes, fields of geo-potential and components of local data characterize processes as potentially dangerous.

EFFECT: increased level of meteorological protection of populated territories, provision of trustworthy advance notifications to population concerning insurmountable and potentially dangerous catastrophic atmospheric events, decreased costs of system installation and of system operation maintenance.

3 cl, 1 dwg

FIELD: computer systems engineering, welding systems, possible use for providing welding architecture to make possible interactive realization of remote configuration, monitoring, control and business operations in distributed environment, wherein welding processes are performed.

SUBSTANCE: system includes at least one welding device, operatively connected to network server, network interface and network for exchanging data with at least one remote system. Remote system includes at least one remote interface for exchanging data with network architecture. Remote system is made with possible request of at least one HTTP socket for setting up connection to welding device through network, loading at least one application from welding device and communication with at least one welding application socket through at least one application for exchanging information between welding device and remote system. At least one appropriate includes at least one of components: welding configuration component, welding monitoring component and welding control component. Method for provision of distributed welding architecture includes stages, at which: welding device is connected to network interface. For setting up network connection through network interface to remote system, at least one socket is used: HTTP socket or welding application socket, where HTTP socket is used for exchanging data with remote systems. Structure of data, providing welding protocol, includes at least one of following fields: field of options/flags, field of order of messages, message status field, data length field, data field, server commands field, server command identifier field, server command arguments field, machine field, machine address field, field of identifier of method/property and field for arguments of method/property.

EFFECT: decreased time and labor costs related to technical maintenance and adjustment of multiple welding devices and systems.

6 cl, 22 dwg

FIELD: automatics and computer engineering, possible use for engineering distributed systems for program control of technological processes, robots and robot complexes, and also systems for logical control of multilevel logical automatic control systems and broad range of multi-processor systems.

SUBSTANCE: due to regularity of inter-module connections, addition of new column or row of modules does not require insertion of new physical connections. Possibility of such buildup males it possible for network to adapt quickly for realization of more complicated control algorithms. Microcontroller network contains M*N modules of the same type, connected as matrix structure, where N - number of modules in a row of matrix structure of network, M - number of rows, while each module includes program memory block, address register, command register, logical conditions multiplexer, address commutator, synchronization block, elements OR from first to third, compliance vector register, buffer register, first and second decoders of synchronization vertex number, OR elements block, first and second univibrators, delay element, a group of blocks for controlling synchronization is inserted, while each block for controlling synchronization includes trigger of presence of neighbor on the left, trigger of presence of neighbor below, a group of NOT elements, a group of AND elements, OR elements from first to fifth, first and second AND elements, commutator, trigger and launch permission trigger.

EFFECT: expanded range of possible implementation of microcontroller network due to possible simple adding of modules to it.

2 cl, 8 dwg

FIELD: engineering of controlling and adjusting systems for controlling technological processes.

SUBSTANCE: complex contains workstations and servers based on personal electronic computer machines, connected as a local area Ethernet network, and also controllers and functional modules. Programmable logical integral circuits, built into each functional module, support programming of practically any algorithms for processing signals and control, adequate for tasks, assigned by engineer to current module. Three variants of system engineering are possible on basis of means included in complex: centralized control, local control, distributed control. In all three variants central microprocessor module controlled by software performs primary configuring of functional modules, information exchange, control and diagnostics of software and hardware means.

EFFECT: expanded functional capabilities, increased reliability, improved maintainability.

14 cl, 19 dwg

Controlling block // 2275669

FIELD: engineering of generic controlling and adjusting systems, possible use in systems for controlling compressor plants.

SUBSTANCE: controlling block has microcontroller, analog inputs expansion board, modular measuring transformer, galvanic decoupling board, control and protection board, distributing board, discontinuous output modules, module of discontinuous input ˜220, module of discontinuous output ˜220, indication board, operation time counter, keyboard, fan, secondary electric power module, power block. Control block realizes manual and automatic control modes for compressor plant.

EFFECT: expanded functional capabilities, increased reliability, improved cost characteristics.

7 dwg, 2 tbl

FIELD: processes for controlling metal cutting machine tools, namely number program control machine tools.

SUBSTANCE: method comprises steps of forming control signals, feeding them to step motors of machine tool. In order to enhance automation degree and quality of worked parts, control signals are generated on base of data of interaction between two-dimensional images of objects taking part in cutting process and formed on screen of computer monitor when contour of blank image is changed for imparting to it shape of ready part.

EFFECT: enhanced automation degree, improved quality of parts.

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