PLC’s (Programmable Logic Controllers), where first developed in 1968 at General Motors. At the time, General Motors could spend weeks replacing relay based control systems when making production modifications to cars or when they had to manufacture a different model to demand General Motors requested a system that could be programmed and maintained by plant … Read more
What is MODBUS? MODBUS is a serial communication protocol. Published by Modicon (now Schneider Electric). Reasons for the use of MODBUS in the industrial Environment? Developed with industrial application in mind. Openly published and royalty free. Easy to deploy and maintain. Moves raw bits or words without placing many restriction on vendors. It enables communication … Read more
what does the g stand for in 5g ? The “G” related with cellular networks stands for generation. 5G is the fifth and newest generation of cellular wireless network technology 5G Wireless: 5th generation wireless Technology Complete wireless communication with almost no limitations Can be called REAL wireless world Has incredible transmission speed Concept is … Read more
let’s discuss what are the difference between internet and intranet ? What is Internet ? Internet is a Global network of computers which may be server or client through exchanges information. It can be defined as a “network of networks” which can be linked through copper wires, wireless connections, and other technologies This is the … Read more
When select PLC Consider following : Application requirements. What type of inputs/outputs are required? What input/output capacity is required? What size of memory is required? What speed is required of the CPU? Electrical requirements. Communication requirements. Software. Operator interface. Physical environments. Application requirements : Input and output device requirements. List the function required and identify … Read more
There are two different IP addressing schemes used on the Internet. They are, IPv4 (also known as just IP) and IPv6. No need to worry about IPv1-3 and IPv5, they are non-existent.let’s discuss about ipv4 vs ipv6 which is better ipv4 vs ipv6 which is better IPv4 is the older of the two and more … Read more
The IPv4 Subnet Mask, also referred to interchangeably as just subnet mask or netmask, is a part of IPv4 addressing. In functionality, it works like an Address Separator discussed earlier. Today i will explain how to find subnet mask from IP address ? It merely indicates the length, from leftmost-to-right, of the general part of the address and doing … Read more
Unless programmed, a router is as good as a piece of brick, a very expensive brick.Routers understand (deals with) destination networks only.how IP routing command cisco switch Database useful are explain below When an IP address is assigned and enabled, each interface of a router supports a unique network. A single interface can also be … Read more
Today we will discuss about security framework and what is radius server and how it works. Before start what is radius server & how it works we need to understand AAA Model-Network security architecture AAA stands for authentication authorization and accounting it is a fundamental security framework for controlling a user’s access to a network determining access … Read more
Below guide is develop by CPNI(Centre for the Protection of National Infrastructure) KEY CONSIDERATIONS FOR DATA CENTRE USER SENIOR LEADERS There is no one-size fts-all approach to holistic data center security. Every data center user needs to consider CPNI and NCSC’s data center security guidance based on their own risk assessments and risk management. This … Read more