CN108319178B - Frequency converter and method for automatically acquiring internal parameter information of product - Google Patents
Frequency converter and method for automatically acquiring internal parameter information of product Download PDFInfo
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- CN108319178B CN108319178B CN201710032807.7A CN201710032807A CN108319178B CN 108319178 B CN108319178 B CN 108319178B CN 201710032807 A CN201710032807 A CN 201710032807A CN 108319178 B CN108319178 B CN 108319178B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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Abstract
A method for automatically obtaining the internal parameter information of a product, wherein an external control device is connected with the product through a network to dynamically obtain the internal parameter information of the product, and the internal parameter information comprises parameter group numbers, group number values of each parameter group and parameter numbers of each parameter group; defining parameter group number addresses corresponding to the parameter group numbers, defining parameter group number value initial addresses corresponding to the group number values of the parameter groups, and defining parameter group number initial addresses corresponding to the parameter numbers of the parameter groups; the external control device reads the parameter information through the communication protocol and comprises the following steps: a, reading a parameter group number address to obtain a group number MAX of a parameter group; b, sequentially reading data from the initial address of the parameter group number value to the initial address of the parameter group number value plus MAX-1 to obtain the group number value of each group of parameters; and c, sequentially reading data from the number starting address in the parameter group to the number starting address + MAX-1 in the parameter group to obtain the number of each group of parameters.
Description
Technical Field
The invention relates to the field of low-voltage electric appliances, in particular to a frequency converter and a method for automatically acquiring internal parameter information of a product.
Background
The frequency converter belongs to a more complex product, needs to adapt to various complex places and meets different technological requirements, so the number of parameters contained in the frequency converter is usually hundreds (or even thousands). A more common method is to set a set of complete parameters, such as the number, attributes and grouping conditions of the parameters, in a CPU main control board (inside a frequency converter), and an external control device (such as an operation panel and upper computer monitoring software) also needs to embed a set of parameters consistent with the CPU main control board. If the internal parameters of the product are changed, the operation panel and the CPU main control board must be changed simultaneously so as to ensure the consistency of the parameters. If there is a special customized product or a dedicated machine product for a certain industry, the operation panel must be changed, which greatly increases the labor development cost and the product upgrading and maintenance cost. Therefore, the existing frequency converter mainly has the following defects and shortcomings: (1) the operation panel can not be completely compatible, and especially special customized models and special machines must adopt special panels. (2) The number and grouping condition of the parameters contained in the product can not be automatically acquired and identified, and when the product is updated and maintained, such as the parameters are adjusted, the parameter definitions of the CPU main control board and the control panel are modified at the same time, so that the consistency can be ensured.
Most of the existing parameter attributes are only defined in a CPU main control board, and other control devices cannot acquire the specific situation of the parameter attributes, and cannot automatically identify information such as units, storage addresses, read-write attributes, value ranges and the like of corresponding parameters, but must redefine a same parameter attribute table in the control devices. Not only increases a large amount of work, but also has poor product compatibility. If the parameter attribute is modified, the operating equipment must be synchronously modified, otherwise, the parameter attribute is easy to be misplaced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, relates to a method for acquiring and automatically identifying parameter information contained in a product, can be used for products such as a frequency converter, a constant current source, an inverter and the like, and can be used for realizing the complete universality of a whole series of products of an operation panel, shortening the development period and improving the development efficiency by defining a set of communication protocol in the frequency converter and acquiring the parameter information in the frequency converter by an operation device (upper computer monitoring software, an operation panel and the like) through the communication protocol. The invention also relates to a method for defining the parameter attribute of the internal parameter of the product and an access mode, which can be used for products such as a frequency converter, a constant current source, an inverter and the like, and the external control equipment acquires the parameter attribute of each parameter in the frequency converter through a communication protocol.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for automatically obtaining the internal parameter information of a product, wherein an external control device is connected with the product through a network to dynamically obtain the internal parameter information of the product, and the internal parameter information comprises parameter group numbers, group number values of each parameter group and parameter numbers of each parameter group; defining parameter group number addresses corresponding to the parameter group numbers, defining parameter group number value initial addresses corresponding to the group number values of the parameter groups, and defining parameter group number initial addresses corresponding to the parameter numbers of the parameter groups; the external control device reads the parameter information through the communication protocol and comprises the following steps:
a, reading a parameter group number address to obtain a group number MAX of a parameter group;
b, sequentially reading data from the initial address of the parameter group number value to the initial address of the parameter group number value plus MAX-1 to obtain the group number value of each group of parameters;
and c, sequentially reading data from the number starting address in the parameter group to the number starting address + MAX-1 in the parameter group to obtain the number of each group of parameters.
Further, the method for acquiring the product category comprises the following steps: defining product identification codes corresponding to the product categories one by one, and defining identification code communication addresses corresponding to the product identification codes; the external control device reads the parameter information through the communication protocol and comprises the following steps:
a, reading an identification code communication address to obtain a product identification code;
and b, decoding the product identification code to obtain the product category.
Further, the communication protocol is MODBUS or EtherNet or CANope or DeviceNET.
Further, parameter group number values and the number of parameters in each group are defined by arrays.
Further, the external control device is an operation panel or an upper computer, and the operation panel or the upper computer is communicated with a CPU main control panel of the product through a network.
Further, the method for dynamically reading the parameter attribute of each parameter of the frequency converter by the external control equipment through the communication protocol is also included: and defining a parameter attribute initial address, and acquiring a single parameter attribute or simultaneously acquiring a plurality of parameter attributes which are adjacent in the number sequence through a communication protocol based on the parameter number sequence.
Further, the parameter attribute includes a parameter number, a parameter name, a parameter value, a display attribute, and a modification attribute.
Further, the parameter attributes also include factory values, value ranges, units, parameter types, and amplification factors.
The frequency converter adopting the method for automatically acquiring the internal parameter information of the product has the advantages that the operation panel of the frequency converter is connected with the CPU main control panel of the frequency converter, and the operation panel comprises an operation control module, a display module and a set key.
The frequency converter adopting the method for automatically acquiring the internal parameter information of the product is characterized in that an upper computer is connected with a CPU main control board of the frequency converter.
The invention relates to a method for automatically acquiring the internal parameter information of a product, which is characterized in that in a protocol application layer based on a communication protocol conforming to the standard, the corresponding data definition is carried out on the information such as the number of parameters, the grouping condition of the parameters, the product category and the like contained in the product, and external control equipment (such as an operation panel and upper computer monitoring software) can dynamically acquire and analyze the corresponding information of a CPU main control panel only by internally arranging a corresponding data analysis protocol, thereby achieving the purposes of dynamically acquiring the number of the parameters, the grouping condition, automatically identifying the product category and the like contained in the product. By adopting the method of the invention, the complete universality of the operation panel is realized, the development period is shortened, and the development efficiency is improved.
Detailed Description
The following describes a specific embodiment of the method for automatically acquiring the internal parameter information of the product according to the present invention. The method for automatically acquiring the product internal parameter information of the present invention is not limited to the description of the following embodiments.
The invention relates to a method for automatically acquiring product internal parameter information.A peripheral control device is connected with a product through a network to dynamically acquire the product internal parameter information, wherein the internal parameter information comprises parameter group number, group number value of each parameter group and parameter number of each parameter group; defining parameter group number addresses corresponding to the parameter group numbers, defining parameter group number value initial addresses corresponding to the group number values of the parameter groups, and defining parameter group number initial addresses corresponding to the parameter numbers of the parameter groups; the external control device reads the parameter information through the communication protocol and comprises the following steps:
a, reading a parameter group number address to obtain a group number MAX of a parameter group;
b, sequentially reading data from the initial address of the parameter group number value to the initial address of the parameter group number value plus MAX-1 to obtain the group number value of each group of parameters;
and c, sequentially reading data from the number starting address in the parameter group to the number starting address + MAX-1 in the parameter group to obtain the number of each group of parameters.
The external control equipment is an operation panel or an upper computer, and the operation panel or the upper computer is communicated with a CPU main control panel of the product through a network.
The invention relates to a method for automatically acquiring the internal parameter information of a product, which is characterized in that in a protocol application layer based on a communication protocol conforming to the standard, the corresponding data definition is carried out on the information such as the number of parameters, the grouping condition of the parameters, the product category and the like contained in the product, and external control equipment (such as an operation panel and upper computer monitoring software) can automatically acquire and analyze the corresponding information of a CPU main control panel only by internally arranging a corresponding data analysis protocol, thereby achieving the purposes of automatically acquiring the number of the parameters, the grouping condition, automatically identifying the product category and the like contained in the product. By adopting the method of the invention, the complete universality of the operation panel is realized, the development period is shortened, and the development efficiency is improved. The method for automatically acquiring the internal parameter information of the product can be used for products such as a frequency converter, a constant current source, an inverter and the like, the external control equipment is connected with a CPU main control panel of the frequency converter through the communication module, and the external control equipment can be an operation panel of the frequency converter and monitoring software of a PC upper computer. The external control device takes an operation panel of the frequency converter as an example, the operation panel of the frequency converter is connected with a CPU main control panel of the frequency converter, and the operation panel comprises an operation control module, a display module and setting keys.
The CPU main control board uses an array to define the group number value corresponding to the group number of the internal parameters of the product, and uses an array to define the quantity value of the parameters contained in each group. The protocol for acquiring the parameter information is defined in the CPU board as follows: applying a communication function code '0 x03 (acquiring register address)' of the MODBUS protocol to acquire a group number value and the total number of parameters contained in each group; the communication address value of the acquired group number and the communication address value of the number of the parameters contained in each group are respectively defined, namely the initial address of the value of the parameter group number and the initial address of the number in the parameter group. In an external control device (such as an operation panel and upper computer monitoring software), the group number of the parameter group can be obtained only by the communication function code "0 x03 (obtaining a register address) of the MODBUS protocol and according to the parameter group number address specified by the protocol, if each group number needs to be obtained, the group number value corresponding to each group is obtained only by the communication function code" 0x03 (obtaining the register address) "of the MODBUS protocol and according to the array number value start address specified by the protocol, and in the same way, the parameter number contained in each group is obtained from the specified communication address. And the external control equipment analyzes and recombines the group number value and the total number of the parameters contained in each group according to the acquired information, and reforms parameter grouping and detailed arrangement modes, thereby achieving the purpose of automatically acquiring the number and grouping conditions of the parameters contained in the product.
Similarly, the manner of obtaining and automatically identifying the product category is similar, the product category information is defined through the internal protocol, the "identification code (specific data)" corresponding to each product category is defined in advance, and then the communication address corresponding to the identification code parameter is defined, so that the product category can be obtained and automatically identified through the communication function code "0 x 03" function of the Modbus protocol.
The grouping condition of the parameters and the detailed communication addresses corresponding to the parameters contained in each group can be defined by self according to the actual conditions, and the communication function code "0 x 03" used in the Modbus communication protocol can also be replaced by other communication function codes, or the communication protocol can be replaced by other protocols (such as EtherNet, CANopen, DeviceNet, etc.), and the corresponding functions can be realized similarly. And defining the number value of the parameter group and the number of the parameters in each group by an array. The method specifically comprises the following steps:
the first step is as follows: defining a parameter group number value;
the second step is that: defining the total number of parameters contained in each group;
the third step: defining a communication address;
the resulting communication protocol is as described in the following table:
the fourth step: acquiring a parameter group number in a control panel;
through the communication function code "0 x 03" of the MODBUS protocol, the group value MAX (i.e. how many groups of parameters are included in the product) included in the product is obtained from the parameter group number address "0 x 4200", then the first group number value is obtained from the parameter group number starting address "0 x 4201", the second group number value is obtained from the communication address "0 x 4202", and so on, when the nth group number needs to be obtained, the group number is obtained from the communication address "0 x4201+ N".
Similarly, the communication function code "0 x 03" of the MODBUS protocol may be used to obtain the total number of parameters included in the whole set of product parameter set from the communication address "0 x 4300" to "0 x4300+ MAX-1".
The method for automatically acquiring the internal parameter information of the product also comprises a method for acquiring the product category: defining product identification codes corresponding to the product categories one by one, and defining identification code communication addresses corresponding to the product identification codes; the external control device reads the parameter information through the communication protocol and comprises the following steps:
a, reading an identification code communication address to obtain a product identification code;
and b, decoding the product identification code to obtain the product category.
Specifically, product identification code information is defined, such as: "300" is "NVF 300" series frequency converter; "3003" is the "EX 9VF 3" series frequency converter; "6006" is identification code information such as "EX 9VF 6" series inverter. And then defining a parameter address corresponding to the identification code information, wherein the parameter address is defined in a manufacturer parameter group, and a special communication address is specified. And the external control equipment can automatically identify the product category only by accessing the corresponding communication address through the communication function code according to the definition information and acquiring corresponding data and then decoding.
The invention also discloses a method for automatically acquiring the internal parameter information of a product, which comprises a method for reading the parameter attribute of each parameter of a frequency converter by an external control device through a communication protocol, wherein the parameter attributes are defined together by utilizing a structure body and a complex body mode, and the communication mode for acquiring the parameter attribute is specified, so that the control device not only can access and modify the corresponding parameter value, but also can acquire and automatically analyze the parameter attribute (including a parameter name, a parameter number, a value range, a unit, an amplification factor, a storage address, a read-write attribute, display/hiding and the like); the universality of the product can be greatly improved. The specific information for acquiring the internal parameters includes information such as a parameter number, a parameter name, a parameter value, a unit, an amplification factor, a data type, a modification attribute, a display type (decimal, hexadecimal, binary), a value range (maximum value, minimum value), a factory value, a parameter type (pure number, single selectable item, multiple selectable items at a time, an on-off state), and an amplification factor. The contents are defined by a structure body and a combination body in a bit definition mode, the parameter attribute information of each parameter comprises 4-5 16-bit data values (the number of data can be adjusted according to actual attributes), certain extension bits are reserved, and compatibility is improved. The parameter attribute is that each parameter has its own independent parameter attribute, and the obtaining mode is to obtain through the application layer of the communication protocol, if the MODBUS protocol is used, for example, "0 x04 (obtain parameter attribute)" is adopted, and the corresponding register address is the parameter number sequence, and one parameter attribute can be obtained at a time, or multiple attributes can be obtained at one time. Other communication protocols (e.g., CANopen, DeviceNet, Profibus-DP, EtherNet) may be used and so forth in a similar manner. The current value of the general parameter can be acquired singly or simultaneously, and only when a plurality of parameters are acquired simultaneously, the parameters are limited by the MODBUS protocol and can be acquired simultaneously only by adjacent parameters.
According to the method for configuring the internal parameters of the frequency converter, the external control equipment dynamically reads the parameter attributes of the internal parameters of the frequency converter through a communication protocol, wherein the parameter attributes of each internal parameter comprise a parameter number, a parameter name and a parameter value; the parameter attribute also comprises a display attribute, if the display attribute of the internal parameter is display, the external control equipment displays the internal parameter to a user, the displayed information comprises a parameter name and a parameter value, and if the display attribute of the internal parameter is hidden, the external control equipment does not display the parameter. According to the method for configuring the internal parameters of the frequency converter, the external control equipment dynamically acquires the numerical values and the parameter attributes of the internal parameters of the product through the communication protocol, and configures the internal parameters based on the acquired parameter attributes, so that the external control equipment can be suitable for the frequency converters of different models and specifications.
The parameter attributes of the present invention further include modification attributes, factory values, value ranges, units, parameter types, magnification factors, and display types. If the modification attribute of the internal parameter is read-only, the external control equipment does not allow the user to modify the internal parameter, if the modification attribute is modifiable, the user can modify the internal parameter through the external control equipment, and the modified parameter value is returned to the frequency converter through the communication protocol. The parameter attribute also comprises a factory value, if the modified attribute is modifiable, the external control equipment provides a factory value restoring function, a user can modify the parameter value of the internal parameter into the factory value by operating the external control equipment, and the modified parameter value is returned to the frequency converter through the communication protocol. The parameter attribute also comprises a value range, and if the modified attribute is modifiable, the external control equipment only allows a user to modify the parameter value into a value in the value range. The parameter attribute also comprises a unit, and the external control equipment displays the parameter value of the internal parameter and the unit to the user. The parameter attribute also comprises a parameter type used for representing whether the parameter takes a numerical value or an optional item. If the parameter type is a numerical value, the user can modify the parameter through the external control device, and if the parameter type is an optional item, the user can only select from a plurality of options provided by the external control device. The parameter attribute also comprises a magnification factor, the magnification factor is used for defining how many times the current acquired parameter value is amplified compared with the actual value, and the external control equipment can acquire the actual value of the parameter according to the magnification factor after acquiring the current parameter value. The parameter attribute also comprises a display type; and if the display attribute of the internal parameter is display, the external control equipment displays the parameter value according to the display type in decimal, hexadecimal or binary mode. The selection is carried out in so-called 'multiple options', for example, the value range of a certain parameter is 0-3, which respectively represents 4 meanings, only one of which can be selected each time, then the parameter value of the type belongs to the selectable parameter, and the external control should be 0-3 selected one. The "magnification" is used to define how much the currently acquired parameter value is magnified compared to the actual value, since the parameter value can be an integer, a one-digit decimal, a two-digit decimal, a multi-digit decimal, and so on. After the magnification factor is defined, floating point numbers do not need to be defined, parameter values can adopt a uniform data digit, for example, 8-bit data, 16-bit data, 32-bit data and the like are uniformly adopted to define parameter value types, but floating point number types do not need to be defined (data precision also needs to be defined, namely decimal point precision), after the external control equipment obtains the current parameter values, the actual parameter values can be obtained according to the magnification factor, for example, the current value of one parameter is 5000, the magnification factor is 2, and the actual parameter values are 50.00.
The method for configuring the internal parameters of the frequency converter can be implemented by the following modes: the frequency converter defines a frequency converter structural body comprising the internal parameter attribute of the frequency converter; defining an array of parameter attributes in the frequency converter according to a frequency converter structural body, and defining an operation equipment structural body corresponding to the frequency converter structural body by external control equipment; after the external control equipment acquires the parameter attribute inside the frequency converter through a communication protocol, the parameter attribute inside the frequency converter is automatically identified through an operation equipment structure body.
Specifically, parameter attribute related information (including parameter name, parameter number, value range, unit, magnification factor, storage address, read-write attribute, display/hiding) such as a structure, a complex, a bit operation, an array and the like is defined in one structure. The parameter attributes of the internal parameters of the frequency converter are grouped and defined one by one according to the defined structure body and the parameter arrangement sequence, and a set of communication mode for acquiring the parameter attributes is formulated at the same time, so that the external control equipment (upper computer software, an operation panel and the like) can acquire the parameter attributes only according to the specified communication mode, and the parameter attribute conditions of all the parameters in the frequency converter can be acquired and automatically identified by defining the same structure body (the parameter attribute definition structure) in the frequency converter.
The method comprises the following steps:
the first step is as follows: defining a parameter attribute structural body; (relevant information required by parameter attribute is defined, and corresponding increase or decrease can be made according to actual requirements in the actual operation process)
The second step is that: defining parameter attributes one by one, arranging the parameter attributes according to a certain rule (for example, defining according to groups, arranging according to parameter sequences inside), and defining parameters in a mode of defining two-dimensional arrays;
the third step: defining a communication protocol (i.e. how the external manipulation device acquires the parameter attributes);
therefore, only one set of identifiable protocols needs to be defined, and the parameter attributes can be easily acquired by the external control equipment. For example, we define the identification address between the two according to the sequence number of the parameter. The external control device only needs to inform the CPU main control board of the need of acquiring the corresponding parameter attribute through the corresponding communication protocol, and then the CPU main control board acquires the corresponding attribute from the parameter attribute list sorted in the second step and submits the attribute to the control device.
The fourth step: and the control equipment identifies and analyzes the corresponding parameter attribute.
External control equipment (such as an operation panel and upper computer monitoring software) only needs to define a uniform parameter attribute structure body according to the first step, and each time a parameter attribute is obtained, the parameter attribute is analyzed. In this step, attention needs to be paid to adjusting the size terminal mode of the chip.
Through the four steps, the parameter attribute can be defined, the external control equipment can freely acquire and automatically analyze the parameter attribute condition, and if the parameter attribute is changed (the content of the parameter attribute is increased or reduced, or the number of the parameters or the parameter arrangement sequence is different), the product end only adjusts the content contained in the second step, so that different products are met, the external control equipment can be completely compatible, and the external control equipment does not need to be adjusted. The external control equipment is an operation panel or an upper computer, and the operation panel or the upper computer is communicated with a CPU main control panel of the product through a network; the operation panel of the frequency converter is connected with the CPU main control panel of the frequency converter, and comprises an operation control module, a display module and setting keys; the upper computer is connected with a CPU main control panel of the frequency converter, the upper computer comprises a CPU, a memory, a display screen and an input device, and the upper computer is communicated with the CPU main control panel of the product through a network.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (12)
1. A method for automatically obtaining the internal parameter information of a product, wherein an external control device is connected with the product through a network to dynamically obtain the internal parameter information of the product, and the internal parameter information comprises parameter group numbers, group number values of each parameter group and parameter numbers of each parameter group;
defining parameter group number addresses corresponding to the parameter group numbers, defining parameter group number value initial addresses corresponding to the group number values of the parameter groups, and defining parameter group number initial addresses corresponding to the parameter numbers of the parameter groups;
the external control device reads the parameter information through the communication protocol and comprises the following steps:
a, reading a parameter group number address to obtain a group number MAX of a parameter group;
b, sequentially reading data from the initial address of the parameter group number value to the initial address of the parameter group number value plus MAX-1 to obtain the group number value of each group of parameters;
and c, sequentially reading data from the number starting address in the parameter group to the number starting address + MAX-1 in the parameter group to obtain the number of each group of parameters.
2. The method for automatically acquiring the internal parameter information of the product according to claim 1, further comprising a method for acquiring the product category:
defining product identification codes corresponding to the product categories one by one, and defining identification code communication addresses corresponding to the product identification codes;
the external control device reads the parameter information through the communication protocol and comprises the following steps:
a, reading an identification code communication address to obtain a product identification code;
and b, decoding the product identification code to obtain the product category.
3. The method for automatically acquiring the product internal parameter information according to claim 1 or 2, wherein: the communication protocol is MODBUS or EtherNet or CANope or DeviceNET.
4. The method for automatically acquiring the product internal parameter information according to claim 1 or 2, wherein: and defining the number value of the parameter group and the number of the parameters in each group by an array.
5. The method for automatically acquiring the product internal parameter information according to claim 1 or 2, wherein: the external control equipment is an operation panel or an upper computer, and the operation panel or the upper computer is communicated with a CPU main control panel of the product through a network.
6. The method for automatically acquiring the product internal parameter information according to claim 1 or 2, further comprising a method for dynamically reading the parameter attribute of each parameter of the frequency converter by an external control device through a communication protocol: and defining a parameter attribute initial address, and acquiring a single parameter attribute or simultaneously acquiring a plurality of parameter attributes which are adjacent in the number sequence through a communication protocol based on the parameter number sequence.
7. The method for automatically acquiring the internal parameter information of the product according to claim 6, wherein: the parameter attribute comprises a parameter number, a parameter name, a parameter value, a display attribute and a modification attribute.
8. The method for automatically acquiring the product internal parameter information according to claim 7, wherein: the parameter attributes also include factory values, value ranges, units, parameter types and amplification factors.
9. The method for automatically acquiring the product internal parameter information according to claim 7, wherein: if the display attribute of the internal parameter is display, the external control equipment displays the internal parameter to a user, the displayed information comprises a parameter name and a parameter value, and if the display attribute of the internal parameter is hidden, the external control equipment does not display the parameter; if the modification attribute of the internal parameter is read-only, the external control equipment does not allow the user to modify the internal parameter, if the modification attribute is modifiable, the user can modify the internal parameter through the external control equipment, and the modified parameter value is returned to the frequency converter through the communication protocol.
10. The method for automatically acquiring the product internal parameter information according to claim 8, wherein: if the modification attribute is modifiable, the external control equipment provides a factory value restoration function, a user can modify the parameter value of the internal parameter into a factory value by operating the external control equipment, and the modified parameter value is returned to the frequency converter through a communication protocol;
the magnification factor is used for defining how many times the current acquired parameter value is magnified compared with the actual value, and the actual value of the parameter can be acquired according to the magnification factor after the external control equipment acquires the current parameter value;
the parameter type is used for indicating whether the parameter value is a number or a selectable parameter type, if the parameter type is a numerical value, the user can modify the parameter through the external control equipment, and if the parameter type is a selectable item, the user can only select from a plurality of options provided by the external control equipment.
11. A frequency converter adopting the method for automatically acquiring the internal parameter information of the product as claimed in any one of claims 1 to 10, wherein an operation panel of the frequency converter is connected with a CPU main control panel of the frequency converter, and the operation panel comprises an operation control module, a display module and setting keys.
12. A frequency converter adopting the method for automatically acquiring the internal parameter information of the product as claimed in any one of claims 1 to 10, wherein an upper computer is connected with a CPU main control board of the frequency converter.
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| CN111176934A (en) * | 2019-12-16 | 2020-05-19 | 京信通信系统（中国）有限公司 | Method and device for managing equipment information, computer equipment and storage medium |
| CN111800524B (en) * | 2020-07-10 | 2022-10-14 | 河北科瑞达仪器科技股份有限公司 | Method for analyzing original addresses of multi-channel data in Modbus message |
| CN112526901B (en) * | 2020-11-19 | 2022-07-26 | 海尔海斯(西安)控制技术有限公司 | Acquisition and display method suitable for microcontroller internal signal |
| CN117713512B (en) * | 2024-02-05 | 2024-05-14 | 苏州新仪科学仪器有限公司 | Frequency conversion board identification and control method and device and electronic equipment |
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| CN102323806B (en) * | 2011-07-08 | 2012-12-19 | 中冶南方（武汉）自动化有限公司 | Inverter monitoring platform and monitoring method thereof |
| CN103428784B (en) * | 2013-06-18 | 2016-03-23 | 北京山竹科技有限公司 | Satellite communication network management and intelligent dispatching system and carrier switch method thereof |
| CN105721580B (en) * | 2016-02-18 | 2018-09-21 | 中国人民解放军63686部队 | Open boat-carrying remote technology supports the implementation method of system |
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| CN102478797A (en) * | 2010-11-22 | 2012-05-30 | 中国科学院空间科学与应用研究中心 | Monitoring system with configurable communication protocol |
| CN103926901A (en) * | 2014-04-22 | 2014-07-16 | 太仓市同维电子有限公司 | Industrial control field debugging method based on Modbus communication protocol |
| CN104753639A (en) * | 2015-03-02 | 2015-07-01 | 北京精诚铂阳光电设备有限公司 | Data transfer method and data transfer device |
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