7 Practical Tips for Setting up a Good Measuring System

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작성자 Gabriela
댓글 0건 조회 8회 작성일 24-08-05 00:35

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This software allows you to monitor the data that devices and apps exchange over serial ports. A RS232 - RS485 converter is often used in industrial data acquisition and control applications where multiple serial devices communicate with each other through a converter. Some of these converters can convert from RS232 to both RS485 and RS422 however many standard models only has one of the protocols. The RS485 converter interface uses two wires for communication, one for transmitting and one for receiving data, which is referred to as a half-duplex communication converter. This is a method for connecting multiple RS485 devices with each other over a two-wire network. In contrast to EIA-485 (which is multi-point instead of multi-drop), EIA-422/V.11 does not allow multiple drivers but only multiple receivers. The advantage of the RS485 protocol is that this it can transfer data over longer distances, up to 4000 feet, and have up to 32 nodes per single network, and it can be used for multi-point networks where multiple serial devices are setup in a bus network. The serial RS232 to RS485 converter and RS232 to RS422 converter units, also called serial converters, are small electronic devices used to convert a serial RS232 signal, (for example the COM port in older computers) into either RS485 or RS422 signals.


The problem for many of us is that desktops traditionally take up a lot of valuable space, and can be difficult to justify in small offices. In a three-phase system, instruments can be installed that measure the single electrical parameter, one per phase, or a voltmeter and a current can be installed with the voltage and current switches, allowing the measurements to be displayed in sequence. The diagram below shows potentials of the A (blue) and B (red) pins of an RS-485 line during transmission of one byte (0xD3, least significant bit first) of data using an asynchronous start-stop method. We also highly recommend using paired twisted cable for connecting most converters. But before we dive deep into those SATA cable classifications, we need to have a look at what SATA actually means. What does all Intel NUC SATA cable provide? They come up in various types such as AWM 20624 ribbon flex cable, micro SATA cables, Intel NUC SATA cables and so on. In multifunction instruments, not only the cables connected to the measurement, but also the RS485 serial port and the analog and digital inputs and outputs must be wired.

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In multifunction instruments, not only the cables connected to the measurement, but also the RS485 serial port and the analog and digital inputs and outputs must be wired. This type of multifunction instrument is ideal in panels where space is limited, in substation panels and in main industrial panels. In order to ensure that the instrument is properly protected, fuses must always be fitted to the power cables of the digital instruments and to the measurement inputs of the voltmeter. In a single phase system, analog and digital instruments are selected to measure voltage, current, frequency, and power factor. Two auxiliary power cables should always be connected for digital instruments. As a result, it has become challenging for the computers to take up as little room as possible, while maintaining power comparable or even sometimes offering greater functionality than their counterparts. You probably have heard of RS232 which is a serial communication method between computers and devices , but have you heard of the RS485 communication? For example you need to consider the noise level in the environment surrounding the serial converter.


So in order to transfer data from a RS232 serial interface engineers need a converter to be able to connect to a RS485 or RS422 interface. The reason is that the serial RS232 protocol is, even its old, a very reliable, stable and solid communication protocol, which can easily be implemented with existing industrial equipment. With the increasing popularity of laptops and tablets, still, these are not able to perform as good as a solid desktop. And who doesn't love a good desktop setup? Due to loading limitations one of the best uses of a RS232 to RS422 serial converter might be in point-to-point communications, such as extending an existing RS232 line. The main problems that arise during the testing phase can be due to incorrect installation of instruments and accessories. Before digital instruments begin to operate, they must be set with measurement system parameters and communication parameters. If not only the electrical parameters are to be monitored, but also the energy consumption, measuring instruments which also have active and reactive energy metering should be selected. Introduction Whenever you need to connect a storage device to a computer motherboard, you must have seen a bunch of ribbon or flat like cables being used for the purpose.



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