Home | Control Global
WEBControl Global features news and analysis of process control and automation technology to help managers and engineers maintain and optimize systems for today's process industries.
Signal filtering: Why and how - Control Global
WEBJul 24, 2019 · Greg McMillan. Filtering is the modification of a measured or calculated signal—using an algorithm and/or logic—to remove undesirable aspects of the signal before it is used in a calculation or a controller. Examples in control are the feedback (or controlled) variable to a PID or APC controller, or the input to a feedforward controller.
Pepperl+Fuchs acquires Comtrol Corp. | Control Global
WEBJan 30, 2019 · Pepperl+Fuchs, a developer of industrial automation technology, announced that it will acquire the business of Comtrol Corp. effective Feb. 1. Comtrol is an US-based manufacturer of industrial Ethernet communication and IO-Link gateway products, known for its RocketPort product family, among others.Comtrol’s technologies will complement Pepperl+Fuchs’ portfolio of Sensorik4.0 sensor ...
Top 50 Automation Companies of 2021: Green Muscles In
WEBNov 8, 2022 · The automation marketplace proved its resilience again in 2021 and returned to pre-pandemic levels. Despite advances in project engineering that reduced cycle times, automation projects in general are still long-cycle projects, and the overall market for systems took longer to recover than some of the more product-oriented and discrete automation businesses.
Realizing ratio control - Control Global
WEBMar 7, 2022 · 7. Minimize by ratio control the stress dealing with problems from startups, transitions, and analyzers. 6. Realize gain of raise in ratio of $ benefits from process control improvement to $ cost of ratio control. 5. Maintain your weight by ratioing the calories eaten to calories burned.
Modular process automation: More than the sum of parts
WEBOct 20, 2021 · Modular process automation: More than the sum of parts. Module Type Package (MTP) standardizes device descriptions and process interactions to streamline programming and production. It's a bad idea to glue Legos or other building blocks together because you can't take them apart, reassemble and rebuild, or …
Controllers: Direct vs. reverse-acting control - Control Global
WEBMar 14, 2014 · A: Direct action means that the controller output rises if the measurement increases. Indirect (reverse) action means that the controller output drops when the measurement rises. A: Not quite right. The control valve failure action (and sometimes the valve positioner action) is also relevant.
Dos and don'ts of control room design | Control Global
WEBApr 26, 2019 · A control room that has no room for future expansion of people or equipment. Control rooms with poor lighting, leading to employee complaints and higher rates of absenteeism. Noisy, congested control rooms with sub-optimal workflow adjacencies. Delays in design and construction schedules required to address changes.
Instrument index insights - Control Global
WEBMay 4, 2021 · Mike: The instrument index has been around forever. Initially mainframe computers were used by large engineering firms to produce device and piping line lists for mostly industrial utility projects. For the majority of firms/projects back in the 1970s, the Index was mostly drafted on 11x17 Mylar sheets or hand printed on 8-1/2 by 11-in. pages.
How valve failure modes interact with controller actions and …
WEBDec 9, 2021 · The controller action is selected for the total loop (Figure 1) to always have negative feedback (RA). Each RA (180° phase shift) in the loop causes a sign reversal, while each DA results in no phase shift. In terms of the total loop, this means that if both the valve and the process are DA (phase shift = 0) or if both are RA (phase shift -180 ...
Skip to content