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Module of Analog Outputs with Modbus Communication
Neuwirth, Tomáš ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
The aim of this bachelor´s thesis is the creation of analog output module with Modbus interface. From Sketch diagram connections, printed circuit boards to the software throughout the module. The device fulfills demands for simple and rapid implementation in industrial environments with possibility to choose a communication bus and some protection against damage. In the introduction and in the first part of the work are described all the theoretical properties, principles and options, which has a MODBUS protocol. Following part of the document points to some products which work by using of this interface. Mainly describes the principles and characteristics of these modules. In the fourth section is described the design of the module. It is focused on the functional description of sub-circuits, with their theoretical properties and the actual wiring in the circuit. In the last part of the work are described separate steps of the programme process.
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USB Measurement Module for Virtual Instrumentation
Hanuš, Ivan ; Beneš, Petr (referee) ; Havránek, Zdeněk (advisor)
The objective of this thesis is design of the universal USB measuring module for virtual instrumentation. The module is connected to PC via USB interface. The module have analog inputs and analog outputs. The inputs have some switchable ranges, adjustable high-pass and low-pass fiters. Also the module have the digital input-output unit with 8 channels with configurable data direction and voltage level. Physical layer for digital serial interfaces SPI/UART and I2C is also part of this unit. The module is able to communicate with LabVIEW enviroment. The teoretical part contains survey of the commercial USB modules for data acquisition and generation from various manufacturers with its basic parameters. Some selected modules are described in detail. Furthermore the thesis deals with possibilities of connecting the USB module with the LabVIEW enviroment. The practical part deals with the design of input-output circuits and with design of the module itself. Furthemore, tho communication protocol, utility library and demonstration LabVIEW software are described in this part. At the end of this part, there are results of verification measurements. The result of this thesis is completed universal USB measuring module with utility library and demonstration program.
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Module of Analog Outputs with Modbus Communication
Neuwirth, Tomáš ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
The aim of this bachelor´s thesis is the creation of analog output module with Modbus interface. From Sketch diagram connections, printed circuit boards to the software throughout the module. The device fulfills demands for simple and rapid implementation in industrial environments with possibility to choose a communication bus and some protection against damage. In the introduction and in the first part of the work are described all the theoretical properties, principles and options, which has a MODBUS protocol. Following part of the document points to some products which work by using of this interface. Mainly describes the principles and characteristics of these modules. In the fourth section is described the design of the module. It is focused on the functional description of sub-circuits, with their theoretical properties and the actual wiring in the circuit. In the last part of the work are described separate steps of the programme process.
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USB Measurement Module for Virtual Instrumentation
Hanuš, Ivan ; Beneš, Petr (referee) ; Havránek, Zdeněk (advisor)
The objective of this thesis is design of the universal USB measuring module for virtual instrumentation. The module is connected to PC via USB interface. The module have analog inputs and analog outputs. The inputs have some switchable ranges, adjustable high-pass and low-pass fiters. Also the module have the digital input-output unit with 8 channels with configurable data direction and voltage level. Physical layer for digital serial interfaces SPI/UART and I2C is also part of this unit. The module is able to communicate with LabVIEW enviroment. The teoretical part contains survey of the commercial USB modules for data acquisition and generation from various manufacturers with its basic parameters. Some selected modules are described in detail. Furthermore the thesis deals with possibilities of connecting the USB module with the LabVIEW enviroment. The practical part deals with the design of input-output circuits and with design of the module itself. Furthemore, tho communication protocol, utility library and demonstration LabVIEW software are described in this part. At the end of this part, there are results of verification measurements. The result of this thesis is completed universal USB measuring module with utility library and demonstration program.
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