WO2014061148A1 - Terminal de station esclave - Google Patents

Terminal de station esclave Download PDF

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Publication number
WO2014061148A1
WO2014061148A1 PCT/JP2012/077050 JP2012077050W WO2014061148A1 WO 2014061148 A1 WO2014061148 A1 WO 2014061148A1 JP 2012077050 W JP2012077050 W JP 2012077050W WO 2014061148 A1 WO2014061148 A1 WO 2014061148A1
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WIPO (PCT)
Prior art keywords
data
slave station
input
output
station
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PCT/JP2012/077050
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English (en)
Japanese (ja)
Inventor
齋藤善胤
錦戸憲治
洋一 星
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株式会社エニイワイヤ
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Application filed by 株式会社エニイワイヤ filed Critical 株式会社エニイワイヤ
Priority to JP2014505441A priority Critical patent/JP5606652B2/ja
Priority to PCT/JP2012/077050 priority patent/WO2014061148A1/fr
Publication of WO2014061148A1 publication Critical patent/WO2014061148A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
    • H04Q2209/86—Performing a diagnostic of the sensing device

Definitions

  • the present invention reduces the number of signal lines between a master station connected to a control unit and a plurality of output units and input units, or a plurality of slave stations corresponding to a plurality of controlled devices, and connects them with a common data signal line.
  • a control / monitor signal transmission system that transmits data using a transmission synchronization method such as synchronizing with a transmission clock, the slave station maintenance method for checking the operation of the slave station, replacing a failed slave station, and the like. It relates to the slave station terminal used for the system.
  • a parallel signal and a serial signal are used instead of a parallel connection that directly connects a plurality of output units and input units or signal lines extending from a controlled device to the control unit.
  • the master station and the plurality of slave stations having the conversion function are connected to the control unit, the plurality of output units and the input unit, or the plurality of controlled devices, respectively, and common data between the master station and the plurality of slave stations.
  • a method of exchanging data with a serial signal via a signal line is widely adopted.
  • a remote wiring check system disclosed in Japanese Patent Application Laid-Open No. 2011-114449 as a system for identifying a disconnection failure between a slave station and an input unit and an output unit on the control unit side. ing.
  • this remote wiring check system in a control / monitor signal transmission system having a single control unit and a plurality of controlled devices, between a master station and a slave station connected by a reduced data signal line.
  • a management data area including connection data indicating a wiring state is provided, which is different from a control / monitor data area composed of control data (output data) and monitoring data (input data) transmitted in both directions simultaneously.
  • connection data short-circuit information, disconnection information, and normal information are identified. For this reason, it is possible to easily check the wiring connection state between the slave station itself, the slave station and the input unit, or between the slave station and the output unit without reducing the input data (monitoring data) capacity of the signal.
  • the remote wiring check system is the state of wiring connection between the slave station itself, the slave station and the input unit, or the slave station and the output unit, and the slave station itself or the slave station and the input unit or slave station.
  • the cause of the malfunction could not be confirmed. Therefore, inspection work is required at the place (site) where the slave station is installed. Then, when performing inspection work at the site, there is a problem that operation of a control unit far from the site is required in order to transmit a control signal for confirming output operation to the slave station.
  • input operation confirmation data related to input from the input unit has to be input by a test switch.
  • connection data indicating short-circuit information, disconnection information, and normal information in the system There is a possibility that it may be judged as abnormal, and there is a problem that the entire system may have to be stopped for maintenance and inspection of a small number of slave stations. That is, there is a problem that the maintenance and inspection work of the slave station at the site cannot be easily performed because it is affected by the control unit far from the site.
  • the present invention is such that a master station connected to a control unit, a plurality of output units, an input unit, and a plurality of slave stations corresponding to controlled devices are connected by a common data signal line, and data transmission is performed by a transmission synchronization method.
  • the slave station maintenance / inspection method that makes it easy to perform maintenance / inspection work on the slave station at the location where the slave station is installed The purpose is to provide.
  • the slave station maintenance inspection system is a control / monitor signal transmission system in which a master station and a plurality of slave stations are connected by a common data signal line, and data is transmitted by a transmission synchronization system.
  • a management data area different from the control / monitoring data area composed of transmission control data and transmission monitoring data is provided in the transmission signal transmitted to the network.
  • the slave station is an output function for outputting output information based on slave station control data extracted from the transmission signal to an output unit corresponding to the local station, or monitoring data obtained by acquiring input information from the input unit corresponding to the local station As an input function for outputting to the common data signal line, or both the output function and the input function.
  • a terminal unit separate from the slave station exchanges data
  • the slave station that receives a maintenance check instruction from the terminal unit is in a mode according to the content of the maintenance check instruction.
  • maintenance inspection mode is transmitted to the master station by superimposing the data on the management data area, and the slave station control data is invalidated according to the content of the maintenance inspection instruction.
  • Output data processing for outputting the output information based on the data received from the terminal unit, or the monitoring data based on the data received from the terminal unit by invalidating the slave station input data based on the input information
  • Input data processing to be output to the signal line, or both the output data processing and the input data processing are performed. Note that data exchange between the slave station and the terminal may be performed without contact or may be performed with contact.
  • a method using a transmission clock generated by the timing generation means of the parent station is suitable. It is.
  • the master station under the control of the transmission clock, the master station outputs a series of pulse signals as a control signal to the common data signal line according to the value of the control data delivered from the control unit, The data value of the monitoring signal superimposed on the signal for each cycle of the clock from each of the plurality of slave stations is extracted and transferred to the control unit.
  • each of the plurality of slave stations counts the pulses of the series of pulse signals starting from the start signal indicating the start of the series of pulse signals, and when the count value matches the own station address number, The data corresponding to the local station is extracted from the pulse-shaped signal and the monitoring signal is superimposed on the series of pulse-shaped signals in the same pulse cycle as the clock from which the data corresponding to the local station is extracted, or the count value is When it matches with the address number of the local station, data corresponding to the local station is extracted from the series of pulse signals, or the monitoring signal is superimposed on the series of pulse signals.
  • the synchronization method is not limited, and a method suitable for the system design condition may be adopted.
  • the maintenance / inspection mode is a mode for confirming connection with the common data signal line related to the slave station
  • the slave station is connected to the management data area based on data received from the terminal. May be output.
  • the slave station may invalidate the slave station control data and output the output information based on data received from the terminal. .
  • the slave station When the maintenance / inspection mode is a mode for confirming the input function, the slave station confirms the slave station based on the data received from the terminal unit as invalid the slave station input data based on the input information.
  • the display of the display means for operation may be an operation display.
  • the slave station When the maintenance / inspection mode is a mode for confirming the control program of the control unit for the slave station, the slave station invalidates the slave station input data based on the input information based on the data received from the terminal.
  • the monitoring data may be output to the common data signal line to check whether the output unit performs a predetermined operation.
  • the master station may validate the connection regardless of the content of the connection detection information from the slave station. In this case, the master station may recognize the end of the mode when the connection detection information transmitted from the slave station is changed from non-connection.
  • a slave station terminal is connected to a common data signal line to which a master station is connected, and includes an address extraction means, a control data extraction means, a monitoring data transmission means, a management control data extraction means, an input means, , Output means, management monitoring data transmission means, terminal interface means, first storage means, and second storage means.
  • the address extraction means counts the pulses of the transmission signal starting from a start signal indicating the start of the transmission signal transmitted to the common data signal line, and outputs a timing signal whose count value matches the own address number. obtain.
  • the control data extraction means extracts and outputs slave station control data based on the timing signal.
  • the monitoring data transmitting unit When the timing signal is delivered from the address extracting unit to the transmission signal, the monitoring data transmitting unit outputs monitoring data as information from the local station to the common data signal line.
  • the management control data extracting means extracts management control data superimposed by the master station in a management data area different from the control / monitoring data area composed of transmission control data and transmission monitoring data in the transmission signal.
  • the input unit takes in the input information from the input unit corresponding to the own station, and the output unit outputs the output information to the output unit corresponding to the own station.
  • the management monitoring data transmission means superimposes a signal constituting management monitoring data as information from the own station in the management data area.
  • the HT interface means exchanges data without contact with a separate terminal, and outputs the data received from the terminal device to the management monitoring data transmission means.
  • the first storage means receives data from the control data extraction means and the terminal interface means, invalidates the slave station control data received from the control data extraction means based on the data received from the HT interface means, and Data received from the interface means is delivered to the output means.
  • the second storage means receives data from the input means and the terminal interface means, invalidates the slave station input data received from the input means based on the data received from the HT interface means, and receives the data from the HT interface means. The received data is delivered to the monitoring data transmission means.
  • the slave station terminal according to the present invention may be provided with display means connected to the second storage means and switching display contents in accordance with data received from the second storage means.
  • the slave station since the slave station exchanges data with a separate terminal, it can directly input a control signal for confirming output operation to the slave station at the site.
  • the slave station superimposes data indicating the maintenance / inspection mode according to the content of the maintenance / inspection instruction transmitted from the terminal unit on the management data area, and the master station transmits the slave station based on the data superimposed on the management data area. Occurs when the station's maintenance / inspection mode information is transferred to the control unit, so that the input / output unit of the slave station subject to maintenance / inspection is removed from the slave station, or the faulty slave station is removed It is possible to prevent the system abnormality from being judged. Therefore, it becomes possible to easily perform maintenance and inspection work of the slave station at the place where the slave station is installed.
  • the slave station performs output data processing that outputs the output information based on the data received from the terminal device, invalidating the slave station control data, according to the content of the maintenance inspection instruction from the terminal device.
  • the output function can be checked while connected to the.
  • the input data based on the input information is invalidated, and the input data processing for outputting the monitoring data to the common data signal line based on the data received from the terminal is performed, thereby checking the input function while being connected to the system. Is possible.
  • FIG. 1 is a system configuration diagram of a slave station terminal in an embodiment of a control / monitor signal transmission system adopting a slave station maintenance inspection system according to the present invention.
  • FIG. 1 is a system configuration diagram showing a schematic configuration of a control / monitor signal transmission system. It is a system configuration
  • the control / monitor signal transmission system includes a single master station 2 connected to the control unit 1 and the common data signal lines DP and DN (hereinafter also referred to as transmission lines), It comprises a plurality of input / output slave stations 4, output slave stations 6 and input slave stations 7 connected to the common data signal lines DP and DN.
  • each slave station is shown one by one, but there is no limitation on the type and number of slave stations connected to the common data signal lines DP and DN.
  • the input / output slave station 4, the output slave station 6, and the input slave station 7 are provided with a signal output process for the output unit 8 that operates in response to an output instruction from the control unit 1 and an input unit 9 that incorporates input information to the control unit 1
  • the output unit 8 is, for example, an actuator, a (stepping) motor, a solenoid, a solenoid valve, a relay, a thyristor, or a lamp.
  • the input unit 9 is, for example, a reed switch, a micro switch, a push button switch, or a photoelectric switch. And various sensors.
  • the input / output slave station 4 is connected to a controlled device 5 including an output unit 8 and an input unit 9, the output slave station 6 is connected only to the output unit 8, and the input slave station 7 is connected only to the input unit 9.
  • the output slave station 6 may include an output unit 8 (output unit integrated slave station 80), and the input slave station 7 includes an input unit 9 (input unit integrated slave station 90). It may be.
  • the control unit 1 is, for example, a programmable controller, a computer, and the like, and is extracted from the output unit 11 that sends out the control parallel data 13 and the control management parallel data 14, and the monitoring signals from the input / output slave station 4 and the input slave station 7. And an input unit 12 for receiving the first management monitoring parallel data 16 and the second management monitoring parallel data 17 obtained based on the management monitoring data extracted from the monitoring monitoring data 15 and the management monitoring data extracted from the management monitoring signal. . These output unit 11 and input unit 12 are connected to the master station 2. In addition, management judging means 18 for calculating data transmitted from the output unit 11 based on data received from the input unit 12 is provided.
  • the master station 2 includes an output data unit 21, a management data unit 22, a timing generation unit 23, a master station output unit 24, a master station input unit 25, and an input data unit 26.
  • a control signal (hereinafter referred to as a transmission clock signal) that is connected to the common data signal lines DP and DN and is a series of pulse signals corresponding to the transmission signal of the present invention is connected to the common data signal lines DP and DN.
  • Monitoring signal and management monitoring signal transmitted from the input / output slave station 4, the output slave station 6, or the input slave station 7 (hereinafter referred to as "slave stations 4, 6, 7" when referring to all of them)
  • the monitoring parallel data 15, the first management monitoring parallel data 16 and the second management monitoring parallel data 17 extracted from the above are sent to the input unit 12 of the control unit 1.
  • the output data unit 21 delivers the control parallel data 13 from the output unit 11 of the control unit 1 to the master station output unit 24 as serial data.
  • the management data unit 22 includes a storage unit 29 that stores an IDX address table in which information on each of the slave stations 4, 6, and 7 is aggregated, and the control management parallel data 14 and the IDX address table from the output unit 11 of the control unit 1.
  • management control data composed of first management control data ISTo and second management control data IDXo, which will be described later, is created and delivered to the master station output unit 24 as serial data.
  • the IDX address table includes data for specifying any one of the input / output slave station 4, the output slave station 6 and the input slave station 7.
  • the IDX address table includes the data of the slave stations 4, 6, and 7.
  • the head address number is used.
  • FIG. 12 shows an example of an IDX address table using the head address number.
  • a station to which an address number of # ad0 is assigned has a 1-bit monitoring signal data value, and the data in the IDX address table has a continuous value of # ad0 and # ad1.
  • the station to which the address number of # ad1 is assigned has the data value of the monitoring signal of 2 bits, the pulse of # ad2 is also assigned to the same station as # ad1. Therefore, in the data of the IDX address table, # ad3 is stored as the next value of # ad1. In this embodiment, even if the data value of the monitoring signal is 1 bit, that is, # ad0 is also set as the head address number in the same manner as # ad1.
  • the IDX address table also stores the classification data of the slave stations corresponding to each address number. For example, “1” is assigned to the input slave station 7, “2” is assigned to the output slave station 6, and “3” is assigned to the input / output slave station 4, which are stored as corresponding to each address number.
  • the timing generation unit 23 includes an oscillation circuit (OSC) 31 and a timing generation unit 32. Based on the OSC 31, the timing generation unit 32 generates a timing clock of this system and supplies it to the master station output unit 24 and the master station input unit 25. hand over.
  • OSC oscillation circuit
  • the master station output unit 24 includes control data generation means 33 and a line driver 34. Based on the data received from the output data section 21 and the timing clock received from the timing generation section 23, the control data generation means 33 transmits a series of pulse signals to the common data signal lines DP and DN via the line driver 34. Send a clock signal.
  • the transmission clock signal has a control / monitor data area following the start signal ST as shown in FIG.
  • the control / monitoring data area includes control signal data (transmission control data of the present invention) OUTn (n is an integer) transmitted from the master station 2 and monitoring signal data (transmission monitoring of the present invention) transmitted from the slave station 4.
  • the pulse of the transmission clock signal has a high potential level (+ 24V in this embodiment) in the second half of one cycle and a low potential level (+ 12V in this embodiment) in the first half.
  • the pulse width interval of the first half of the pulse that becomes the level becomes the output data period, and the first half of the pulse that becomes the low potential level also becomes the input data period.
  • the pulse width interval of the low potential level represents the control signal data OUTn, and the presence or absence of the current superimposed on the low potential level represents the monitoring signal data INn.
  • the pulse width interval of the low potential level is extended from (1/4) t0 to (3/4) t0.
  • the width is not limited and may be determined appropriately.
  • the input data period and the output data period can be appropriately determined. For example, the input data period is set to the first half of the pulse (low potential level) as in this embodiment, and the pulse width interval of the second half of the pulse (high potential level) is set.
  • the output data period may be the first half of the pulse (low potential level) and the second half of the pulse (high potential level) may be the input data period as in this embodiment. Further, the latter half of the pulse (high potential level) may serve as both the output data period and the input data period. The same applies to the case where the second half of one cycle of the transmission clock signal is at a low potential level.
  • the upper part shows the control data (output data) period
  • the lower part shows the monitoring data (input data) period.
  • the management data area of the transmission clock signal includes a management control data area in which the management control signal transmitted from the master station 2 is superimposed, and management monitoring data in which the management monitoring signal transmitted from the slave stations 4, 6, 7 is superimposed. Consists of regions.
  • the management control data transmitted by the management control signal is composed of the first management control data ISTo and the second management control data IDXo, and is expressed as a pulse width interval of a low potential level, like the control signal data OUTn.
  • the management monitoring data transmitted by the management monitoring signal is composed of the first management monitoring data STi and the second management monitoring data IDXi. Like the monitoring signal data INn, the presence / absence of the current superimposed on the low potential level is determined. expressed.
  • the first management control data ISTo and the second management control data IDXo are instruction data for specifying the type of data requested to the slave stations 4, 6, 7 and the slave stations 4, 6, 7 Address data for specifying any one of these.
  • the first management monitoring data STi and the second management monitoring data IDXi are data indicating the status of the own station, and further, data other than “0” is always transmitted as the management monitoring data.
  • the management monitoring data is not sent to the common data signal line, and the management monitoring data is “0”. Therefore, it can be seen that when the management monitoring data is “0”, it is in a disconnected state, and when it is not “0”, it is in a connected state. That is, it becomes connection detection information of the present invention.
  • the start signal ST is a signal having the same potential level as the high potential level of the transmission clock signal and longer than one cycle of the transmission clock signal.
  • the master station input unit 25 includes monitoring signal detection means 35 and monitoring data extraction means 36.
  • the monitoring signal detection means 35 detects the monitoring signal transmitted from the slave station 4 via the common data signal lines DP and DN. As described above, the data value of the monitoring signal is represented by the presence or absence of the current superimposed on the low potential level.
  • the monitoring signal is sequentially transmitted from each of the slave stations 4, 6, and 7. Is supposed to receive. (The output slave station 7 has only the management monitoring signal)
  • the data of the monitoring signal is extracted by the monitoring data extracting means 36 in synchronization with the signal of the timing generating means 32. Then, the monitoring signal data is sent to the input data unit 26 as serial input data. Management monitoring data 39 extracted from the management monitoring signal is also sent to the input data unit 26.
  • the input data unit 26 converts the serial input data received from the master station input unit 25 into parallel (parallel) data, and sends the parallel data to the input unit 12 of the control unit 1. Further, the management monitoring data 39 received from the master station input unit 25 is separated into the first management monitoring parallel data 16 and the second management monitoring parallel data 17 and sent to the input unit 12.
  • the input / output slave station 4 includes a transmission receiving means 41, a management control data extracting means 42, an address extracting means 43, an address setting means 44, a management monitoring data sending means 45, a monitoring data sending means 46, an ID
  • a slave station input / output unit 40 having address response means 47, HT interface means 48, control data extraction means 61, first storage means 62, output means 63, input means 71 and second storage means 72 is provided.
  • the input slave station 7 of this embodiment includes an MCU which is a microcomputer control unit as an internal circuit, and this MCU functions as the slave station input / output unit 40. Calculations and storages necessary for the processing are executed using the CPU, RAM, and ROM included in the MCU.
  • the CPU, RAM, and ROM in the processing of each of the above-described units constituting the slave station input / output unit 40 For the sake of convenience of explanation, the relationship between and is assumed to be omitted.
  • the transmission reception means 41 receives the transmission clock signal transmitted to the common data signal lines DP and DN, and delivers it to the management control data extraction means 42, the address extraction means 43, and the management monitoring data transmission means 45.
  • the management control data extraction unit 42 extracts the data of the management control signal from the management data area of the transmission clock signal and delivers these to the ID address response unit 47.
  • the address extracting means 43 counts pulses starting from the start signal ST indicating the start of the transmission clock signal, and the count value is the own station address number data based on the head address number set by the own station address setting means 44.
  • the monitoring data transmission means 46 is validated at a timing that coincides with the control data and the control data is delivered to the control data extraction means 61.
  • the monitoring data transmission means 46 is enabled by the input timing delivered from the address extraction means 43, and the base current of the transistor TR is set to “on” or “off” based on the data delivered from the second storage means 72. .
  • the base current is “on”
  • the transistor TR is turned “on”, and a current signal as a monitoring signal is output to the common data signal lines DP and DN.
  • a current for example, 30 mA
  • the management monitoring data transmission means 45 counts pulses starting from the start signal ST of the transmission clock signal, and obtains the timing of the management data area. Then, based on the data delivered from the ID address response means 47 or the HT interface means 48, the base current of the transistor TR is output, and a current signal which is a management monitoring signal is output to the common data signal lines DP and DN.
  • the ID address response unit 47 displays data indicating the ID response mode as the first management monitoring data STi.
  • the head address number data of the own station is output as the second management monitoring data IDXi.
  • the timing at which the head address number data is output is delayed by one frame transmission cycle from the frame in which the data IDXo of the management control data signal matches the local address number data.
  • the HT interface means 48 includes a light projecting means 64 and a light receiving means 74, and exchanges data without contact with a separate terminal device 50. Then, various command modes corresponding to the contents of the maintenance inspection instruction received from the terminal device 50 are stored, and the command mode data is stored in the management monitoring data transmission means 45, the first storage means 62, and the second storage means 72. hand over. Further, the HT control data D ⁇ b> 2 is delivered to the first storage unit 62 in response to the instruction of the output “on” or the output “off” received from the terminal device 50. Further, the HT input data D 7 is delivered to the second storage means 72 in response to the input “on” or input “off” instruction received from the terminal device 50.
  • a command signal for setting management monitoring data including data of the head address number for connection check to “0” is input from the terminal 50
  • the “0” data is managed. It is delivered to the monitoring data transmission means 45.
  • data exchange between the HT interface means 48 and the terminal device 50 is performed without contact, but there is no limitation on the data exchange method.
  • the HT interface means 48 and the terminal device 50 may be connected by a data signal line, and data exchange may be performed in contact (wired).
  • the control data extraction means 61 extracts a data value from the control data delivered from the address extraction means 43 and delivers the slave station control data D1 to the first storage means 62.
  • the first storage means 62 outputs data D3 based on the slave station control data D1 delivered from the control data extraction means 61 when the slave station is in normal operation and in the connection check test mode or the input / output simulation test mode. Is delivered to the output means 63.
  • the output data D3 based on the HT control data D2 delivered from the HT interface unit 48 is delivered to the output unit 63.
  • the output means 63 converts the output data D3 delivered from the first storage means 62 into parallel data and outputs it as output information D4 to the output unit 8 to operate or stop the output unit.
  • the second storage means 72 is based on the slave station input data D6 delivered from the input means 71 when the slave station is in normal operation and when the command mode delivered from the HT interface means 48 is the connection check test mode.
  • the monitoring data D8 is delivered to the monitoring data transmission means 46.
  • the command mode delivered from the HT interface unit 48 is the input / output simulation test mode
  • the slave station input data D6 delivered from the input unit 71 is invalidated
  • the HT input data D7 delivered from the HT interface unit 48 is invalidated.
  • the monitoring data D8 based on the above is delivered to the monitoring data transmitting means 46.
  • the command mode delivered from the HT interface means 48 is the self-input / output test mode
  • the slave station input data D6 delivered from the input means 71 is invalidated
  • the HT input data D7 delivered from the HT interface means 48 is invalidated.
  • the display means 73 is displayed on the basis of the above.
  • the terminal device 50 shown in FIGS. 5 and 6 includes a terminal transmitter / receiver 51, a terminal input unit 52, and a terminal display unit 53, and has an MCU which is a microcomputer control unit as an internal circuit. Yes. Since any of these can be configured with known components and circuits, a detailed description thereof will be omitted, and only an outline of the function will be briefly described.
  • the terminal transmitter / receiver 51 includes a light projecting element and a light receiving element, and when directed to the slave stations 4, 6, 7, issues a command signal to the HT interface means 48 or is sent from the HT interface means 48. Received floodlight signal.
  • a signal for mode selection for maintenance and inspection of the input / output slave station 4 As the command signal, a signal for mode selection for maintenance and inspection of the input / output slave station 4, a signal for confirming input operation, a signal for confirming output operation, and the like are issued.
  • the modes that can be selected are a connection check test mode, a self-input / output test mode, an input / output simulation test mode, and an online detachment mode. A maintenance inspection method using these modes will be described later.
  • the output slave station 6 and the input slave station 7 include MCUs that are microcomputer control units as internal circuits, and these MCUs are slave station output units 60 or slave station input units 70. As a function. Similar to the MCU of the slave station input / output unit 40, calculations and storages necessary for processing of the output slave station 6 or the input slave station 7 are executed using the CPU, RAM, and ROM included in this MCU. It has become a thing.
  • the output slave station 6 does not include the monitoring data transmission means 46, the input means 71, and the second storage means 72, and the input slave station 7 does not include the control data extraction means 61, the first storage means 62, and the output means 63. However, since the other configuration is the same as that of the input / output slave station 4, description of the configurations of the output slave station 6 and the input slave station 7 is omitted.
  • the mode is set according to the work content. Prior to the mode setting, first, the terminal device 50 obtains the head address number of the input / output slave station 4 to be maintained and inspected. To do.
  • the terminal device 50 transmits a slave station head address read command signal to the input / output slave station 4 (each figure). Step 1). Upon receiving this command signal, the input / output slave station 4 extracts the head address number and delivers it to the terminal device 50. In response to this, the terminal 50 stores the head address number (step 2 in each figure), and then the terminal 50 transmits to the input / output slave station 4 as a command signal designating a desired mode.
  • connection check test mode designating the connection check test mode (corresponding to the mode for confirming the connection related to the slave station of the present invention), as shown in FIG.
  • the station 4 stores that it is in the connection check test mode, and outputs data indicating the connection check test mode to the common data signal lines DP and DN as the first management monitoring data STi.
  • the master station 2 extracts this data and notifies the control unit 1 that the connection check test mode has started in the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 3 in FIG. 7)
  • Step 4 in FIG. 7 The master station 2 that has received this handed over 0 data to the control unit 1 as the extracted management monitoring data. In the control unit 1 that has received this, the input / output slave station 4 has a disconnection failure. Judge that there is.
  • control unit 1 since the control unit 1 recognizes that the input / output slave station 4 is in the connection check test mode, it does not determine the system abnormality and continues the normal operation of the system. At this time, if the control unit 1 does not determine that the input / output slave station 4 is broken, it can be understood that the system connection check function is not functioning normally.
  • a command signal for ending the connection check test mode is transmitted from the terminal device 50 to the input / output slave station 4.
  • the input / output slave station 4 ends the connection check test mode, and outputs data indicating the end of the connection check test mode to the common data signal lines DP and DN as the first management monitoring data STi.
  • the master station 2 extracts this data and notifies the control unit 1 that the connection check test mode has been completed at the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 5 in FIG. 7) Then, the input / output slave station 4 performs the slave station normal operation.
  • FIG. 4 When the terminal 50 transmits to the input / output slave station 4 as a command signal designating the self-input / output test mode (equivalent to the mode for confirming the output function and the mode for confirming the input function of the present invention), FIG. As shown in FIG. 4, the input / output slave station 4 stores that the self-input / output test mode is set, and outputs data indicating the self-input / output test mode to the common data signal lines DP and DN as the first management monitoring data STi. . The master station 2 extracts this data and notifies the control unit 1 that the self-input / output test mode has started in the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 3 in FIG. 8)
  • the slave station input data D6 based on the input information D5 from the input unit 9 is invalidated in the second storage means 72 and stored in the second storage means 72.
  • the connected display means 73 displays an operation based on the HT input data D7. (Step 4 in FIG. 8)
  • the display means 73 displays an operation according to the instruction transmitted from the terminal device 50 and does not display a normal operation with respect to the input from the input unit 9 during the normal operation of the slave station. It can be confirmed that the input unit 9 is not functioning normally.
  • Step 4 in FIG. 8 When the command signal is output “on” or output “off”, the slave station control data D1 delivered from the control data extracting means 61 is invalidated in the first storage means 62, and the output unit 8 is set to the HT control data D2. Operates based on. (Step 4 in FIG. 8) When the output unit 8 does not operate according to the instruction transmitted from the terminal device 50, the control data transmitted from the master station 2 during normal operation of the slave station is functioning normally. It can be confirmed that there is not.
  • control unit 1 sets the input / output slave station 4 to the self-input / output test mode. Therefore, the control data and monitoring data related to the input / output slave station 4 are invalidated and the normal operation of the system is continued.
  • a command signal for ending the self input / output test mode is transmitted from the terminal device 50 to the input / output slave station 4.
  • the slave station control data D1 from the control data extracting means 61 is validated in the first storage means 62, and the slave station input data D6 from the input unit 9 in the second storage means 72. Is enabled, the self input / output test mode is ended, and data indicating the end of the self input / output test mode is output to the common data signal lines DP and DN as the first management monitoring data STi.
  • the master station 2 extracts this data and notifies the control unit 1 that the self-input / output test mode has ended in the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 5 in FIG. 8) Then, the input / output slave station 4 performs the slave station normal operation.
  • the self-input / output test mode may be used for replacement work when a failure occurs in the input / output interface (output unit 8 or input unit 9).
  • the control unit 1 recognizes that the input / output slave station 4 is in the self-input / output test mode, and controls and monitors data related to the input / output slave station 4. Since the I / O interface is disabled, the entire system is not affected by the removal of the input / output interface. Therefore, a faulty input / output interface can be easily replaced with a new one by using this input / output test mode.
  • FIG. 9 shows a case where the terminal 50 transmits to the input / output slave station 4 as a command signal designating the input / output simulation test mode (corresponding to a mode for checking the control program of the control unit for the slave station of the present invention).
  • the input / output slave station 4 stores that the input / output simulation test mode is set, and outputs data indicating the input / output simulation test mode to the common data signal lines DP and DN as the first management monitoring data STi.
  • the master station 2 extracts this data and notifies the control unit 1 that the input / output simulation test mode has started in the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 3 in FIG. 9)
  • the terminal device 50 transmits the HT input data D7 to the input / output slave station 4
  • the input / output slave station 4 that has received the HT input data D7 receives the slave station input data D6 based on the input information D5 from the input unit 9.
  • the monitoring data based on the HT input data D7 is output to the common data signal lines DP and DN.
  • the master station 2 delivers the extracted monitoring data to the control unit 1, and the control unit 1 receiving this performs processing based on the monitoring data. (Step 4 in FIG. 9)
  • a command signal for ending the input / output simulation test mode is transmitted from the terminal device 50 to the input / output slave station 4.
  • the slave station input data D6 based on the input information D5 from the input unit 9 is validated in the second storage means 72, the input / output simulation test mode is terminated, and the input / output simulation is completed.
  • Data indicating the end of the test mode is output to the common data signal lines DP and DN as the first management monitoring data STi.
  • the master station 2 extracts this data, and notifies the control unit 1 that the input / output simulation test mode has ended in the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 5 in FIG. 9)
  • the input / output slave station 4 performs the slave station normal operation.
  • the I / O slave station 4 When the terminal 50 transmits to the I / O slave station 4 as a command signal designating the online detachment mode, as shown in FIG. 10, the I / O slave station 4 stores the fact that it is in the online detachment mode. Data indicating the mode is output to the common data signal lines DP and DN as the first management monitoring data STi. The master station 2 extracts this data and informs the control unit 1 that the online detachment mode has started in the input / output slave station 4 corresponding to the head address number specified by the second management control data IDXo. (Step 3 in FIG. 10) The control unit 1 assumes that the input / output slave station 4 is connected to the common data signal lines DP and DN regardless of whether the connection detection information (management monitoring data) is connected or not. Continue the normal operation of the system.
  • Step 4 in FIG. 10 When the exchange is completed and the input / output slave station 4 resumes operation, in the master station 2, the connection detection information (management monitoring data) from the input / output slave station 4 that has resumed operation is disconnected. When the connection is established, the end of the online desorption mode is recognized, and the control unit 1 is informed that the online desorption mode has ended. (Step 5 in FIG. 10) Then, the input / output slave station 4 performs the slave station normal operation.

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Abstract

L'invention concerne un protocole d'inspection de maintenance de station esclave et un terminal de station esclave qui est utilisé dans ce protocole, grâce à quoi il est possible d'effectuer facilement des travaux d'inspection de maintenance des stations esclaves sur des sites où les stations esclaves sont installées, dans un système de transmission de signal de commande/surveillance. Une station maître connectée à une unité de commande est connectée avec une ligne commune de signal de données à une pluralité de stations esclaves qui correspondent à une pluralité d'unités de sortie, d'unités d'entrée ou de dispositifs à commander, la transmission de données étant effectuée à l'aide d'un protocole de synchronisation de transmission de données. Une station esclave, dès la réception d'une instruction d'inspection de maintenance d'un autre appareil terminal, superpose les données indiquant le mode correspondant au contenu de l'instruction d'inspection de maintenance sur une zone de données d'administration située dans un signal de transmission et elle transmet le résultat à une station maître. En outre, selon le contenu de l'instruction d'inspection de maintenance, la station esclave effectue un processus de sortie de données selon lequel les données de commande de la station esclave sont invalidées et les informations de sortie sont émises en sortie sur la base des données reçues depuis l'appareil terminal, et/ou un processus d'entrée de données selon lequel les données d'entrée de la station esclave, en fonction des informations d'entrée, sont invalidées et les données de surveillance sont émises en sortie vers la ligne commune de signal de données sur la base des données reçues depuis l'appareil terminal.
PCT/JP2012/077050 2012-10-19 2012-10-19 Terminal de station esclave WO2014061148A1 (fr)

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JP2014505441A JP5606652B2 (ja) 2012-10-19 2012-10-19 制御・監視信号伝送システム
PCT/JP2012/077050 WO2014061148A1 (fr) 2012-10-19 2012-10-19 Terminal de station esclave

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CN113891342A (zh) * 2020-07-02 2022-01-04 中国移动通信集团设计院有限公司 基站巡检方法、装置、电子设备及存储介质

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CN110941179B (zh) * 2019-12-09 2023-03-31 杭州和利时自动化有限公司 一种无扰下装方法、装置、设备及可读存储介质

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JPH05128396A (ja) * 1991-10-31 1993-05-25 Hitachi Building Syst Eng & Service Co Ltd 遠隔監視装置
JPH07240980A (ja) * 1994-02-25 1995-09-12 Matsushita Electric Works Ltd 集合型端末器
JPH09293031A (ja) * 1996-04-25 1997-11-11 Nec Eng Ltd 遠隔監視システム
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JPH05128396A (ja) * 1991-10-31 1993-05-25 Hitachi Building Syst Eng & Service Co Ltd 遠隔監視装置
JPH07240980A (ja) * 1994-02-25 1995-09-12 Matsushita Electric Works Ltd 集合型端末器
JPH09293031A (ja) * 1996-04-25 1997-11-11 Nec Eng Ltd 遠隔監視システム
JP2000347720A (ja) * 1999-06-09 2000-12-15 Mitsubishi Electric Corp 試験装置
JP2011114449A (ja) * 2009-11-25 2011-06-09 Anywire:Kk リモート配線チェックシステムおよびそのシステムに使用する接続コネクタ

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CN113891342A (zh) * 2020-07-02 2022-01-04 中国移动通信集团设计院有限公司 基站巡检方法、装置、电子设备及存储介质
CN113891342B (zh) * 2020-07-02 2023-08-15 中国移动通信集团设计院有限公司 基站巡检方法、装置、电子设备及存储介质

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