At the start of 2012, I wrote an article for Automation World titled “Automation Innovation As You See It.” The article was based on a survey of readers that sought to determine which automation technologies they saw as the most game changing to the world of manufacturing and processing.
More recently, members of Automation World's LinkedIn group have revived the discussion. Phil Christopher, chief software architect at Sigma Knowledge Systems (Canton, OH), asked the group: “Where do you see innovation taking the factory floor in the next 10 years?”
Christopher began the discussion by offering his thoughts on factory floor innovation to come. In his initial post he said he expects to see “a grid-based server architecture that would support the ability to add or take away processing power simply by adding or removing servers. If one server fails, the grid (and everything running on the grid) continues to operate uninterrupted, but with proportionately reduced resources. This grid would share its resources with one another and provide a large volume on which to run hundreds or thousands of virtual PLCs. These virtual PLCs would replace the hardware PLCs on the plant floor.”
To ensure fast, reliable communication, Christopher says the components (flow meters, pressure transducers, thermocouples, drives, HMIs, etc.) would communicate via a dedicated fiber-optic channel (strand) that runs between the component and the virtual PLC on the grid in the server room.
“Each component would generate the fiber signal in accordance with a common standard, making them essentially plug-and-play,” Christopher says. “Fiber signals are more durable than electronic signals, especially in electronically hostile environments like some plant floors. The communication would be faster and more reliable than Ethernet because it is not going through switches and other devices that add latency.”
Ted Kroll, an industrial automation professional in North Carolina, offers a future concept based on a new category of smart device he calls a “tabletphone.” These devices would be part of a wireless industrial control network that would include the warehouse, manufacturing operations and the front office.
A key aspect of this future vision is that “every employee will have his/her own smart device to replace ID badges, radios, cell phones and intercoms, Kroll says. “This will make several layers of information available to workers (about machines, inventory and productivity) and to supervisors (about where different individuals are located and what they're doing).
Agreeing with Kroll’s concept of making information available to operators, supervisors and managers in real time, Brad Hart, an automation specialist at C&E Sales (Louisville, KY), adds that he is already working to bring that concept to life using an iPad (or similar device) connected wirelessly to a Red Lion Data Station or G3 HMI, displaying the virtual HMI pages through Safari.
“Just by pressing an icon on the iPad, the supervisor or maintenance person can quickly view real time information about the production machine,” says Hart. “You can have one data station for supervisors, in which the supervisors can manipulate the HMI data. You can also have a second data station for maintenance, showing information that matters to [them]. The result is reduced radio traffic, and having real time information.”
This concept is limited, according to Hart, in that only data available on the HMI is presented to the iPad user. He also notes that he has experienced pushback to this concept from a potential user because it would involve using wireless Ethernet and, therefore, would require IT to become part of the project.
Apparently the production and IT wars in manufacturing still persist.
Taking Kroll’s concept a step further, Harts says the principal innovation for this real-time information system would be for all production employees to have a tablet PC of some sort running the company’s own app program. Using this app, the employee’s tablet could be used to badge in/out for the day, and for operating each machine the person is working with that day.
Since “the performance of a machine and its operator(s) determine throughput and profitability, this app would track the daily performance, illustrating to the operator his/her performance” and thereby providing a motivation to improve, says Hart.
In Hart’s vision, tablets would be acceptable to take into meetings as the supervisor/manager/decision maker could keep an eye on production, while addressing the business of the meeting. Powerpoints from the meeting could be made available through the app for review after the meeting, just as notes from maintenance about machine issues and fixes would become instant history in the server and accessible via the tablets.
Feel free to weigh in with your thoughts on this discussion at http://bit.ly/automationworld.