Reliability is one of the most important aspects we should be focused on especially when it comes to Plant Maintenance. Frequent shutdowns in plant could be caused by poor maintenance management and lack of advance tools to keep the system running. For a plant working 24/7, most of the running equipments should be treated critically and monitored regularly. However, Redundant Systems are used to save the plant from shutdowns if failure occurs. Aside from back-up power we should always thought of back-up systems that will manually or automatically take over the operations in the event of fault or alarm. In this article, I will share with you the redundant systems that I have encountered by working in Maintenance Department and Engineering Design.
In a modern world of engineering, one of the successful innovations ever made is the Programmable Logic Controller or the so called PLC. PLC with Redundant CPU and separate racks for Input/Output Modules In this article, I'm going to share with you how I do the designs for PLC Control Panels based on the previous projects that I have handled. Table of contents 1. Definition of terms2. Essential tools3. Review of project specifications4. Enclosure type5. Panel cover devices6. Internal components7. Auxiliary items Definition of terms What is PLC? Programmable Logic Controller or PLC is a combined hardware and software tool. It function as the brain of the automated system. It monitors feedbacks and input signals by means of Input Modules. Also, it regulates the commands and output