by teracomsys | May 19, 2021 | Blog
According to WIKI, HTTP POST is a request method supported by HTTP used by the World Wide Web. By design, the POST requests that a web server accepts the data enclosed in the body of the request message, most likely for storing it. It is often used when uploading a... by teracomsys | Aug 9, 2019 | Blog
The document describes how to make FW update MODBUS RTU sensors using Teracom TCW210-TH, TCW260 or TCG140 controllers. For proper update follow the steps below: 1. Connect the sensor which should be updated to the RS-485 bus. It is important that only this sensor is... by teracomsys | Aug 31, 2018 | Blog
This article outlines the necessary configuration steps, the implementation of which will allow the user to have remote access to TCW210-TH, TCW220, and TCW241 Ethernet controllers. The document looks at three operators (DynDNS, No-IP, and DNS-O-Matic) that offer a... 
by teracomsys | Jul 28, 2018 | Blog
This article is an update of our old article “How to install Nagios local server on Ubuntu 16.04″. In the article, we will describe how to install Nagios local server – step by step. You will need the following packages – Nagios 4.3.4 and... 
by teracomsys | May 30, 2018 | Blog
1. Overview TCW210-TH is a device that registers and stores information for up to 8 sensors (temperature and temperature-humidity). This information is stored in a flash memory and can be visualized in graphics in the web interface. One of the many services... 
by teracomsys | Apr 14, 2018 | Blog
What is MODBUS RTU? MODBUS is a serial communication protocol. Modicon developed and published it in 1979 and de facto it is an industrial serial standard since then. MODBUS is an application-layer messaging protocol. In OSI model it is positioned at level 7. The... 