![]() ![]() When a PLC control system does break down, identifying the cause can be tricky. To ensure this does not happen, businesses need to follow a planned maintenance routine. Unfortunately, even this robust control system can fail sometimes, which leads to serious consequences, such as a production line or processes stopping altogether.ĭowntime is extremely costly and, not only can it seriously affect plant output, with the recent advances in PLC technology that embrace safety-related functions, it can occasionally create a hazardous situation that needs immediate attention. In essence, a PLC is a set of hardware and sequence of coded instructions that enables equipment to perform complex and reliable electromechanical functions.Ī PLC will usually run constantly, despite the harsh industrial environment it operates in. Early PLCs replaced relay logic systems, but advancements over the years enabled them to cope with a larger number of inputs, processes and outputs. PLCs use microprocessors to digitally control industrial automated processes. Click here to download the useful infographic The Top 5 Causes of PLC Failure. Here, James Davey, service manager of systems integrator Boulting Technology, discusses the top causes of PLC control system failure and how the risks can be minimised. Despite their resilience and rugged design, PLC-based control systems can still break down and their failure can lead to costly downtime. The PLC has been used ever since to make logic based decisions in automated industrial processes. Whilst most were busy celebrating and making resolutions, Dick Morley was planning his invention. On New Year’s Day 1968, the programmable logic controller (PLC) was first designed.
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