Monthly Archives: August 2025

This is a depiction SCADA system. You can see from the diagram theflow of information through the ICS process. It shows corporate IT separated from the processing area by the supervisory network. Typically, SCADA is used to describe an ICS that monitors and controls transmission and distribution facilities. These facilities are geographically spread over large […]

SCADA is an acronym for supervisory and data acquisition, a computer system  for gathering and analyzing real time data. SCADA systems typically used to control geographically dispersed assets that are often scattered over thousands of square kilometers. In the past, communications between field controllers and host computers were dependent upon serial communications, most typically RS232. […]

ICS is a general term used to describe the integration of hardware and software with network connectivity in order to support critical infrastructure. An ICS is a system that handles process control and monitoring for the facility. It will take inputs from sensor and process instruments and provide output based on control functions in accordance […]

An Intelligent Electronic Device (IED) is a term used in the electric power industry to describe microprocessor-based controllers of power system equipment. It is used by the Energy sector to monitor and control electrical power devices such as circuit breakers, capacitors, and transformers. IED receive data from field sensors (I/O) and power equipment and can […]

Glossary Access Control List (ACL): A list of permissions attached to an object. An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Application: A software program that runs on your computer. Web browsers, e-mail programs, word processors, games, and utilities are […]

A&E Alarms and Events ACL Access Control list ACSE Application Control Service Element ACT Access Control List APC Advanced Process Control APDU Application Protocol Data Unit ARP Address Resolution Protocol ARPA Advanced Research Projects Agency ASCII American Standard Code for Information Interchange ASDU Application Service Data Element CEU Continuing Education Unit CCRC Cyclical Redundancy Check […]