RU97359U1 - STAND FOR MONITORING, DIAGNOSTICS AND SETTING OF THE SAFETY INSTRUMENT OF THE LOADING MACHINE AND ITS COMPONENT PARTS - Google Patents

Abstract

 1. A stand for monitoring, diagnosing and configuring a safety device of a lifting machine and its components, comprising: a unit for generating replacement test signals and / or recording the output signals of the safety device, comprising an information-control unit, sensors of the parameters of the lifting machine, including analog , digital and discrete sensors, a serial interface line connecting digital sensors with the information and control unit of the safety device, and executive relays; an information input / output device including a transceiver or a serial interface controller and a safety device; and a power supply system including a power supply unit of a safety device, a power supply unit of an information input-output device and a personal computer power supply unit, characterized in that a microcontroller, autonomous or integrated analog-to-digital and digital-to-analog converters are introduced into the information input / output device, three matching devices, one of which is made autonomous or integrated into the microcontroller, a safety relay, the control input of which is connected to the microcontroller, and the output voltage level, while the first inputs and outputs of the serial interface transceiver are connected to the outputs and inputs of the microcontroller, and the second inputs and outputs are configured to connect them via a safety relay to the serial interface line connecting digital sensors to the information and control unit of the safety device, microcontroller is made with

Description

The utility model relates to the field of material handling equipment and can be used at manufacturers of safety devices, manufacturers of hoisting machines when equipped with safety devices, and specialists of service and repair organizations.

A device is known for monitoring and diagnosing a safety device of a lifting machine, comprising an input / output device and a unit for generating replacement test signals and / or recording the output signals of the safety device, including a control and recording unit for controlled information and connected permanent and operational memory modules devices, two multiplexers and an inverter. The information input-output device contains two switches, a digital-to-analog converter, a buffer, an analog-to-digital converter, three blocks for storing analog signals and a block of input connectors, by which the stand is connected to a safety device (RU 2087409 C1, 08.20.1997). This device generates substitute test signals of the analog sensors of the safety device in accordance with a predetermined program, transfers these signals to the safety device, and also records the analog and output discrete signals of the safety device and determines its technical state by analyzing these signals. However, this does not provide the ability to control the safety device with digital sensors of the operating parameters of the lifting machine having a multiplex data channel.

Closest to the claimed utility model in terms of the combination of elements is a stand for monitoring, diagnosing and setting up the safety device of the lifting machine and its components, comprising: a unit for generating replacement test signals and / or recording the output signals of the safety device, which includes an information-control unit sensors of the parameters of the lifting machine, including analog, digital and discrete sensors, a serial interface line connecting digital sensors with information control and control unit of the safety device, and executive relays; an information input / output device including a transceiver or a serial interface controller and a safety device; and a power supply system including a safety device power supply, an information input-output device power supply and a personal computer power supply (RU 86581 U1, 09/10/2009).

This stand allows you to test sensors, however, discrete and analog sensors common in safety devices must be connected in this case through a controller located in the safety device, which in some cases is impossible due to their malfunction or lack of access to these circuits, which limits the functionality of the stand .

The stand does not allow simulating the operation of discrete and analog sensors common in safety devices when checking the information-control unit, which narrows the functionality of the stand.

There is no possibility to determine the state of the control signals, which does not allow to identify some of the malfunctions of the information-control unit, and also does not allow to determine the correct operation of the safety device during the development of the program, which narrows the functionality of the stand.

There is no possibility of feeding relay signals with a different voltage level to the safety device to simulate the operation of the device on a lifting machine, which does not allow to identify some of the malfunctions of the information-control unit, and also does not allow to determine the correct operation of the safety device when working out its program, which narrows the functionality of the stand .

Using a personal computer with the presence of a COM port as an assembly unit can lead to additional costs for its acquisition, due to its absence in most modern computers, especially laptops recommended for use for these purposes.

The stand does not have overvoltage protection for communication lines when connected to a faulty safety device or its component, which can lead to failure of the stand.

The objective of this utility model is to develop a stand design for monitoring, diagnosing and setting up the safety device of a lifting machine and its components, which would provide the opportunity to:

test discrete and analog sensors with direct connection to the stand;

simulate the operation of discrete and analog sensors when checking the information-control unit;

determine the state of control signals;

send relay signals with a different voltage level to the safety device to simulate the operation of the device on a crane;

use as a personal computer formation unit without a COM port;

Protect the stand from overvoltage when connected to a faulty safety device or its component.

Additional tasks to be solved and advantages of the claimed utility model will be clear from the following description.

The stated technical problems are solved by the fact that in the stand for monitoring, diagnosing and setting up the safety device of the lifting machine, comprising: a unit for generating replacement test signals and / or recording the output signals of the safety device, which includes an information-control unit, sensors for the parameters of the lifting machine, including analog, digital and discrete sensors, a serial interface line connecting the digital sensors to the information and control unit of the safety device, and spolnitelnye relay; an information input / output device including a transceiver or a serial interface controller and a safety device; and a power supply system including a power supply unit of a safety device, a power supply unit of an information input-output device and a personal computer power supply unit, according to a utility model, a microcontroller is introduced into the information input-output device, either analog-to-digital or digital-to-analog or integrated into the microcontroller converters, three matching devices, one of which is made autonomous or integrated into the microcontroller, a safety relay, the control input of which is connected to the microcontroller, and a world-wide output voltage level, while the first inputs and outputs of the transceiver of the serial interface are connected to the outputs and inputs of the microcontroller, and the second inputs and outputs are configured to connect them via a safety relay to the serial interface line connecting digital sensors to the information and control unit of the safety device, the microcontroller is configured to connect to it the input of the information-control unit via a digital-to-analog converter, the output of the information o-control unit, outputs of analog-to-digital sensors directly or through an analog-to-digital converter, outputs of discrete sensors through the first matching device, lines of the serial interface through the second matching device and the block for generating substitute test signals and / or recording the output signals of the safety device through the third matching device, stand-alone or integrated in the microcontroller, the first output of the power supply unit of the information input-output device is connected to the power supply bus information input-output devices and to the first supply input of the output voltage level driver, the second output to the second supply input of the output voltage level driver, the control input of which is connected to the output of the microcontroller, and the output of the output voltage level driver is configured to connect it to the additional input of information -control unit.

Preferably, the block for generating substitute test signals and / or recording the output signals of the safety device is made in the form of a personal computer adapted for testing algorithms and programs of operation of the safety device.

The essence of the utility model is as follows.

The supply of the information input / output device with a microcontroller and analog-to-digital and digital-to-analog converters integrated into the microcontroller and the first matching device allows testing discrete and analog sensors with direct connection to the stand without connecting additional controllers and simulating the operation of discrete and analog sensors when checking information -control unit. The implementation of the microcontroller with the ability to connect the outputs of the information-control unit allows you to submit control signals to the stand and determine their status using the microcontroller. The implementation of the microcontroller with the ability to connect the serial interface line through the second matching device and supplying the stand with a safety relay allows you to measure the voltage levels of the communication line and connect it to the serial interface transceiver only when the communication line is in good working order and thus protect the stand from overvoltage when connected to a faulty safety device or component part. A third matching device connected to the microcontroller or integrated into it provides the microcontroller signals matching with the “USB” port of the computer and allows the use of modern personal computers without a COM port. The inclusion of the output voltage level driver information in the input-output device under the control of the microcontroller allows you to send relay signals with a different voltage level to the safety device to simulate the operation of the device on a crane.

The technical result from the use of the proposed utility model is to increase the operational reliability of the stand and expand its functionality.

Figure 1 shows a functional diagram of the proposed stand in the registration mode of the readings of the sensors parameters of the lifting machine in the form of a crane with the connection of discrete and analog sensors through the stand; figure 2 - with the connection of discrete and analog to the information control unit; figure 3 - in the test mode of the sensors; figure 4 - in the testing mode of the information control unit.

The stand for monitoring, diagnosing and adjusting the safety device 1 of the crane contains a block 2 for generating replacement test signals and / or recording the output signals of the safety device, made in the form of a personal computer, an information input / output device 3 and a power system for the stand and safety device, including a safety device power supply unit 4, a power input / output device power supply unit 5 and a personal computer power supply unit 6.

The crane safety device 1 contains an information-control unit 7 and a set of 8 crane parameter sensors, including analog 9, discrete 10 and digital 11 sensors. In the drawing, to simplify the circuit, only one analog, digital and discrete sensor is shown. The specific set of sensors used in a crane safety system depends on the type of crane. The information-control unit 7 may have another name, for example, in the safety devices ONK-160 B and ONK-160 C manufactured by Arzamas Electromechanical Plant LLC, this unit is named as “Information Display Unit” (BOI), and in the device safety ONK-160 M block 7 is named as "Control Unit" (BU). Executive information relays are connected to the information-control unit (not shown in the drawing).

The power supply unit 4 of the crane safety device 1, which is part of a complex of 8 crane parameter sensors and, if necessary, the information input / output device 3 can be an external (as shown in the drawings) or a DC-to-DC power converter located inside the safety device low voltage supplied to the electronic circuits of the information-control unit 7 and a set of 8 sensors of parameters of the crane, or some other source of direct current with an output voltage of 10-30 V, for example p, tap the battery. As the power supply unit 5 of the information input-output device 3 and, if necessary, the safety device 1, a device is used that converts the power supply of an alternating current network of 220 V into a direct current of 24 V. The power unit 6 of a personal computer, for example, a laptop, is included in its composition is a network adapter or battery.

The information input / output device 3 contains a microcontroller 12, a serial interface transceiver 13, an analog-to-digital converter (ADC) 14, a digital-to-analog converter (DAC) 15, three matching devices (SU) 16-18, a DC-to-DC voltage converter 19 direct current (DC / DC converter), safety relay 20, safety device 21 and driver 22 of the output voltage level. The Converter 19 is structurally made as part of the device 3 input-output information, as shown in the drawings, but may also be part of the power supply 5. Block 5 may include a filtering device and an overload protection device (not shown in the drawing).

The first inputs and outputs of the transceiver 13 of the serial interface are connected to the outputs and inputs of the microcontroller 12, and the second inputs and outputs are configured to connect them via a safety relay 20 to the serial interface line 23, which connects the digital sensors 11 of the crane parameters to the information and control unit 7 of device 1 security. The control input of the safety relay 20 is connected to the corresponding output of the microcontroller.

The microcontroller 12 is configured to connect to it the input of the information-control unit 7 through a digital-to-analog converter 15, the output of the information-control unit 7, the outputs of the analog sensors 9 of the crane parameters directly or through the analog-to-digital converter 14, the outputs of the discrete sensors 10 - through the first matching device 16, providing coordination on the voltage level, line 23 of the serial interface through the second matching device 17 and block 2 of the formation of substitute test s signals and / or registration of the output signals of the safety device (connector 24 of the USB port of a personal computer) through the third matching device 18, stand-alone or integrated in the microcontroller 12.

The output of the power supply unit 4 with a voltage of +24 V is connected to the power supply bus of the information-control unit 7. The complex of 8 sensors of the crane parameters is powered from the power module (not shown in the drawing), which is part of the information-control unit 7.

The first output of the power supply unit 5 with a voltage of 24 V output is connected through a safety device 21 to the power bus 25 of the information input-output device 3 and to the power bus of the information-control unit 7, and the second output of the power supply unit 5 with a voltage of 220 V output is connected to the first supply input of the shaper 22 of the output voltage level. The bus 25 is connected to the second power input of the shaper 22 of the output voltage level and the input of the Converter 19 of the DC voltage to DC voltage (DC / DC Converter). The control input of the shaper 22 of the output voltage level is connected to the output of the microcontroller 12, and the output is configured to connect it to an additional input of the information-control unit 7.

The first output of the converter 19 with a voltage of +3.3 V is connected to the power inputs of the microcontroller 12, the analog-to-digital converter 14 and the digital-to-analog converter 15, and the second output with a voltage of +5 V is connected to the power inputs of the transceiver 13 of the serial interface and the matching device 18 .

The microcontroller 12 can be implemented on the basis of the chip MSP430F149 firm "Texas Instruments" (USA).

As the transceiver 13 of the serial interface can be used chip TJA1050T (in the case of using the CAN interface bus).

Analog-to-digital 14 and digital-to-analog 15 converters can be integrated into the MSP430F149 microcontroller from Texas Instruments (USA), but they can also be autonomous.

Matching device 16, 17 are voltage dividers

Matching device 18 can be implemented on the basis of FT245RL microcircuit manufactured by Future Technology Devices International Limited (Great Britain)

The Converter 19 DC voltage to DC voltage (DC / DC Converter) can be implemented, for example, on the chip PKV3222PI and TPS7333QD. A 24 V DC voltage is supplied to the input of the converter. The converter 19 provides power to the microcontroller 12, the analog-to-digital converter 14 and the digital-to-analog converter 15 with a DC voltage of 3.3 V, as well as the transceiver of the serial interface 13 and a matching device with a DC voltage of 5 V .

Safety relay 20 has the number of make contacts according to the number of wires in the serial interface line. It can be made on the basis of the TRR-2A-24-D relay with two make contacts (in case of using the CAN interface bus).

The safety device 21 is a diode, the cathode of which is connected to the power line 25, and the anode is connected to the power supply 5. As such a diode can be a S3G diode company (PHILIPS).

The output voltage level generator 22 is a set of electronic keys and can be made on the basis of K293KP2AT microcircuits for 24 V and K293KR3VT microcircuits for 220 V.

The following products and software are included in the standard delivery package of the stand:

information input-output device;

cable for connecting information input-output device to the USB port of a personal computer;

connecting harnesses for connecting the safety device to the information input-output device;

Software CD.

As block 2 for generating substitute test signals and / or recording the output signals of the safety device, any modern personal computer, preferably a laptop, can be used.

The proposed stand is a hardware-software complex that provides:

computer simulation of the operation of the information-control unit 7 in the process of obtaining information from sensors included in the kit of a specific safety device;

graphic display on the monitor of a personal computer of the processes of measuring the parameters of the crane by sensors of the safety device;

display on the monitor of a personal computer of working and tuning parameters of sensors and editing of tuning parameters;

transmitting and recording to the personal computer real signals of sensors installed on the crane during its operation, with the possibility of their subsequent repeated playback when setting up the safety device;

computer simulation of the operation of analog, discrete and digital sensors and control signals from the crane during its operation to the information and control unit and simulation of the sensor output signals to assess the health and operability of the information and control unit and to configure individual measuring channels;

CAN serviceability monitoring of the communication line;

The stand can operate in four main modes:

“The mode of recording readings of sensors of parameters of the crane with the connection of discrete and analog sensors through the stand”;

“The mode of recording readings of sensors of parameters of the crane with the connection of discrete and analog to the information-control unit”;

“Test mode for crane parameters sensors”;

"Test mode information management unit."

The mode of recording readings of sensors of parameters of the crane with the connection of discrete and analog sensors through the stand

The block diagram of the connection of the stand to the safety device of the lifting machine in this mode is shown in figure 1. In this mode, the safety device is fully equipped with sensors and installed either on a crane or in a laboratory environment to check for proper functioning, functioning or diagnostics. The role of block 2 for generating replacement test signals and recording the output signals of the safety device is performed by a personal computer, which in this mode is used as a registrar, i.e. as a storage device for recording instrument readings during the crane loading cycle. The information input / output device 3 is connected to a personal computer and to a serial interface bus 23.

If the stand is supposed to be powered from the power supply unit 4 of the safety device if there is no need to supply 220 V to the information and control unit, the power supply unit 5 may not be connected, the stand will receive power from the unit 4.

If for some reason it is not possible to power the information input / output device 3 and the safety device 1 from its power supply 4, then they can be powered from the power supply 5 through a safety device 21 that protects the power supply 5 from possible overvoltages.

It is advisable to turn on the safety device with sensors and the stand in this mode when it is necessary to check the operation of the controllers and the signal processing algorithm of the analog and discrete sensors of the safety device.

The mode of recording readings of sensors of parameters of the crane with the connection of discrete and analog sensors to the information-control unit

The block diagram of the connection of the stand to the safety device of the lifting machine in this mode is shown in figure 2. In this mode, the safety device is fully equipped with sensors and installed either on a crane or in a laboratory environment to check for proper functioning, functioning or diagnostics. The role of block 2 for generating replacement test signals and recording the output signals of the safety device is performed by a personal computer, which in this mode is used as a registrar, i.e. as a storage device for recording instrument readings during the crane loading cycle. The information input / output device 3 is connected to a personal computer and to a serial interface bus 23.

It is advisable to turn on the safety device with sensors and the stand in the mode of recording sensor readings when the safety device and all its blocks and sensors are fully operational and operational. This mode is selected when it is necessary to register (write to the memory of a personal computer) data from all sensors during the operation cycle of the crane loading: lifting the load, moving, lowering the load. For additional visual control of the loading cycle, the data on the readings of the sensors can be quickly displayed on the monitor screen of a personal computer. This is especially important to do on a new crane when it is put into operation, or on a crane in operation after installing a new safety device on it and adjusting it.

These data allow you to store and reproduce repeatedly the entire history of the life cycle of the crane and its limiter. They can be further used as a reference for a given crane, and even for a given type of crane, to become the basis of a kind of databank about this particular crane and its limiter. With their help, you can subsequently study the change in the characteristics of the crane and the device during their operation, check the change in the accuracy indicators of the device and its sensors, identify components, blocks and sensors on the crane and in the device that require increased attention, repair or replacement.

Using this data, it is possible, for example, upon failure of the information-control unit 7 and replacing it with a new instance, configure it without lifting the reference weights, but only simulating the signals from the sensors of this crane. Based on this data, it is possible to carry out performance monitoring and troubleshooting of the information and control unit 7 of not only this crane, but also of other cranes using a similar crane load limiter. These data can also help in monitoring and diagnosing various sensors of the device, since the current readings of the sensors of the crane during its loading cycle can be compared with them. Finally, a databank of this particular crane and its limiter allows, if necessary, verification of safety devices.

Test mode for crane parameters sensors

In the sensor testing mode, the information and control unit 7 of the safety device is not connected to the stand (Fig. 3), but only its sensors are connected. But since the sensors of safety devices for the most part do not have their own power sources, but are powered from the power supply unit 4 of the safety device, in this mode the sensors receive power from the power supply unit 5 of the information input / output device 3. The sensor testing mode is used to monitor the operability of sensors, to verify the accuracy of their operation, to assign addresses to digital sensors, to control the input voltage range to the analog-to-digital converter of the safety device controller, to correct their settings, if necessary, such as zero offset , correction temperature coefficients, etc. The values of these voltages and parameters must also be known when diagnosing sensors and identifying the nature of their possible malfunctions. The introduction of correction temperature coefficients at the factory in the manufacture of sensors is a mandatory procedure, which is preceded by exposure of the sensor in a heat chamber at temperature extremes corresponding to the range of conditions of application of the sensor.

In the test mode of the sensors, it is possible, acting on the sensor (setting, for example, the load, turning the sensor, or rotating it on special calibrated test benches), control the output signal from the sensor, evaluate the accuracy of the sensor, and, if necessary, the availability of standard test stands to carry out verification of sensors and safety devices. The signal from the verified sensor can be written to the data bank of this sensor in a personal computer and later this record can be used as a standard replacement test signal when the stand is in testing mode of the information-control unit 7. Using records of replacement sensor signals obtained on crane when performing loading cycles, you can then configure the safety device in laboratory conditions in the testing mode of the information-control unit 7.

The sensor testing mode allows the personal computer to refine the algorithms and programs of operation of the safety device, the triggering conditions of the executive relays of the safety device when the maximum passport carrying capacity of the crane is exceeded, when the cargo leaves the coordinate protection zone, etc.

Information Control Unit Test Mode

In the testing mode of the information-control unit 7, only the information-control unit is connected to the device 3 of the input / output information of the stand (Fig. 4). Physical sensors do not participate in this mode. Their role is played by block 2 of the formation of substitute test signals - a personal computer. The data bank contains mathematical models of all sensors not only of this safety device, but also of devices of all types of this brand, with which you can simulate the operation of sensors. At the same time, it is possible to simulate the operation of sensors not only comprehensively, simulating the loading cycle of a particular crane, but also individually, a group of sensors or each individual sensor. This signal through the input-output device 3 is fed to the input of the information-control unit 7, the display of which shows the response of the device to the input modeling signal, and information corresponding to the readings of this sensor or group of sensors is recorded in the recorder.

This mode allows you to check the operability of the information-control unit 7, even if the device contains faulty sensors. The fact is that if you assemble a set of a safety device with its sensors (on a crane or on a table in laboratory conditions - it does not matter), in which there are faulty sensors, then it is not possible to check the operability and serviceability of the information-control unit 7, since there will be an error indication on the display of the information-control unit, the executive relay will trip, its contacts will be open, the light and sound indicators will turn on, safety device 1 will not give any readings, since the right sensor means a malfunction of the device and the impossibility of its further operation. When using the proposed stand, even in the case of modeling the readings of only one sensor, the information-control unit 7 will work in normal mode, since the information from all possible mathematical models of sensors possible in this configuration will come from the personal computer to the information-control unit, only signals from sensors that are not used in this test will be zero. Those. at the same time, it is possible to check the response of the information-control unit to a change in the readings of individual sensors or their local groups.

This mode is also very convenient for checking the correctness of the working algorithms and programs of the device, since it allows you to identify these errors at the stage of debugging before launching into mass production. It also allows you to better perform in laboratory or factory conditions the laborious and difficult procedure of choosing the type of curve for approximating the cargo characteristics of the crane in the safety device and selecting its coefficients.

This mode also checks the operation of the input and output control signals of the safety device and their algorithm of work in laboratory conditions.

In addition, in this mode, it is very easy to check the operation of the safety data logger. By applying substitute test signals of a certain magnitude, simulating the crane loading cycle and performing various working movements by the crane, and turning on the information-control unit 7 in the operating mode, it is possible to record the readings of the device in the parameter logger in the laboratory, then read these readings, and compare it on a personal computer registrar information with parameters of modeling signals of sensors. Based on such a comparison, we can conclude that the recorder is in good working order, operable, and accurate.

When lifting goods on certain types of cranes (for example, on overhead cranes), at the moment of breaking off the load and lifting it, strong vibrations and associated vibrational transients occur in the output signals of the force sensors. These oscillatory processes reduce the accuracy of measurements of the weight of the lifted load and even with large amplitudes of signal emissions can lead to improper operation of the safety device. To eliminate this phenomenon, various filters are implemented in the algorithms of operation of safety devices, but for their correct operation, the correct selection of coefficients is necessary. The values of these coefficients are individual for each particular crane and should be selected according to the results of measurements on this crane. This work can also be done more correctly and efficiently in the testing mode of the information-control unit when playing previously recorded real processes of loading a given crane on a personal computer.

In this mode, it is also possible to set up in laboratory conditions a new information-control unit 7, which should be installed on the crane instead of the old one that has failed. Of course, this requires a memory bank, which stores information about the readings of the sensors at the previous settings of the device. This information must be obtained earlier in the registration mode, which is described above.

The testing mode of the information-control unit 7 allows, in laboratory conditions, before installing, for example, the device on a tower crane when moving to a new site, to enter the values of the coordinate protection parameters of the device for new working conditions. Knowing the geometry of the future construction site and the coordinates of the rail track, it is possible to calculate on a personal computer the values of the azimuth, departure and height sensors at which the coordinate protection should work, then simulate these values on the stand in the testing mode of the information-control unit and enter the relevant parameters in the instrument settings . In the testing mode of the information-control unit, as well as in the three previous ones, the CAN communication line is constantly being checked, i.e. the operability of the output microcircuits of the transceiver 13 of the serial interface using the safety relay 20. In the event that the voltage levels of the communication line are out of the acceptable range measured by the microcontroller 12, the transceiver 13 is disconnected from the safety device, which protects the stand from failure.

And finally, in this mode, it is possible to verify in laboratory conditions the accuracy of operation of the safety device when exceeding the permissible load on the crane and its lifting mechanisms, and to verify the operation of its coordinate protection.

The described device is only a particular example of the implementation of the proposed utility model. It is clear that, depending on the conditions of use of this stand, the design of its individual units may change while maintaining the essence of the proposed utility model.

The claimed stand can be made at the instrument-making enterprise using modern electronic components and technologies.

Claims (2)

1. A stand for monitoring, diagnosing and configuring a safety device of a lifting machine and its components, comprising: a unit for generating replacement test signals and / or recording the output signals of the safety device, comprising an information-control unit, sensors of the parameters of the lifting machine, including analog , digital and discrete sensors, a serial interface line connecting digital sensors with the information and control unit of the safety device, and executive relays; an information input / output device including a transceiver or a serial interface controller and a safety device; and a power supply system including a power supply unit of a safety device, a power supply unit of an information input-output device and a personal computer power supply unit, characterized in that a microcontroller, autonomous or integrated analog-to-digital and digital-to-analog converters are introduced into the information input / output device, three matching devices, one of which is made autonomous or integrated into the microcontroller, a safety relay, the control input of which is connected to the microcontroller, and the output voltage level, while the first inputs and outputs of the serial interface transceiver are connected to the outputs and inputs of the microcontroller, and the second inputs and outputs are configured to connect them via a safety relay to the serial interface line connecting digital sensors to the information and control unit of the safety device, the microcontroller is configured to connect to it the input of the information-control unit through a digital-to-analog converter, the output of the information the fission unit, the outputs of the analog sensors directly or through an analog-to-digital converter, the outputs of the discrete sensors through the first matching device, the lines of the serial interface through the second matching device and the block for generating substitute test signals and / or recording the output signals of the safety device through the third matching device, self-contained or integrated into the microcontroller, the first output of the power supply unit of the information input-output device is connected to the device’s power bus in water-output of information to the first supply input of the output voltage level driver, the second output to the second supply input of the output voltage level driver, the control input of which is connected to the output of the microcontroller, and the output of the output voltage level driver is configured to connect it to an additional input of information control unit. 2. The stand according to claim 1, characterized in that the unit for generating replacement test signals and / or recording the output signals of the safety device is made in the form of a personal computer adapted for working out the algorithms and programs of the safety device.