The page with device data contains information about data in Open4Tech. The page includes several sections: Device Data - contains last-ended data by location, type and device settings. Device Data Chart - Contains last 24 hours of device numeric data types represented as a line chart Device Data History - Contains the device's previous data.
The section "Reports" in Open4Tech Cloud contains every report available to download or which will be available after manually starting them from the Device Data. The table contains three columns: Name - file name. This name is set by the user when generating the report is started. Status - The status of the file. When
Once logged in to the platform, you can add a new device by going to the Add Device menu item. This page contains the form below: The mandatory field is"Device Name". Others are optional and can be added if you need to store more device information. The device name represents the name used as an
The security tokens in Open4Tech Cloud are used to validate the connection, subscription, publishing and options for virtual separating networks (the system allows you to execute actions only with specific tokens by user). A secure token is a random string generated for an unlimited time (until it is deleted). In the future, an expiry time
Registration for Open4Tech Cloud is straightforward. Please note that registering for the cloud platform is different from registering on the open4tech.com website. Registration on the Open4Tech Cloud platform requires a unique username and password; email confirmation is not required. The registration link is https://cloud.open4tech.com/create-account. After accepting the "Terms of service" and "Privacy policy", you can
In this article, we will introduce the USB protocol layer. Please see our previous article for information regarding the physical layer and network topology: An Introduction to USB Communication (Part 1). USB is a polled bus where the host initiates all transactions. For the host to receive information from USB devices, it must request it
USB (Universal Serial Bus) is an industry-standard used to specify cables, connectors, and protocols that are used for communication between electronic devices. Advantages: Self-configuring interface, no need for user configuration of speed, data protocol, etc.Capable of supplying power to small auxiliary devicesVarious communication speeds are supportedStandard connectorsError checking increases the communication reliability Limitations: Limited cable
The IPv6 is the latest version of the Internet Protocol. Its header is subdivided into a mandatory fixed header and optional extension headers. The fixed header has 8 fields and fixed size of 40 bytes, while all extension headers are multiple of 8 octets in size. To meet this requirement, some extension headers require internal
In this article, we will explain the header section of an IPv4 packet. The IPv4 header has a variable length of 20-60 bytes, depending on the IP options present. It consists of 14 fields, of which 13 are mandatory. IPv4 Header Format Compared To IPv6 Header Let's take a look at each field individually: Version
An Internet Protocol address (IP address) is a unique numerical identifier used for communication between devices connected to a computer network. It is used for identification and location addressing. To send data from one computer to another, data packets must travel across the network containing the IP addresses of both devices. In 1983, IPv4 was
