Classic off-the-shelf client/server interfaces like OPC are optimized for collecting information from any data source at some predefined cyclic interval. Within the client application, an end user can browse for information that is contained in one or more servers. The information of interest can then be selected and tied to UI controls for visualization, alarm and event objects for condition monitoring, or trends for historical analysis. As part of this, the end user will also set how often each piece of data should be polled from the data source. Although perhaps over-simplified, the rest of the scenario is as follows: the end user enters Run Mode, the server polls the data sources at the appropriate intervals and sends updates to the client when the value or quality of the data changes, and the client performs the necessary logic on the information as configured by the end user. The process continues until the client application is stopped.
Oct 11, 2013, 7:00 AM
May 24, 2013, 8:00 AM
As we discussed in earlier parts of this blog series, the ability to exchange information between the various software and hardware components found inside of an organization is necessary to operate and maintain the day-to-day business. Tying all of the components together is a major challenge: they typically come from a wide variety of vendors, each providing a unique communications interface that will not interoperate with one another out of the box. Fortunately, communications platforms, such as KEPServerEX, exist to solve this problem.
Dec 20, 2012, 9:00 AM
Last time, we looked at how data was traditionally moved from plant floor devices to various applications, as well as how that data is turned into information. This time, we will examine how some standards groups have tackled issues with interoperability and turning raw data into information.
Oct 24, 2012, 8:34 AM
Manufacturing and industrial automation environments have become increasingly complex. They house different types of equipment—along with different manufacturing software applications—each with a different purpose. Yet somehow, it all has to work together in order to solve real-world manufacturing objectives. On top of that, businesses are looking to utilize the data and information that these manufacturing systems produce.
May 23, 2012, 2:55 PM
The amount of data generated within an organization continues to increase exponentially. Different personnel need access to the appropriate information so they can make the best operational and maintenance decisions for their organization. Depending on who or where you are in the organization, there may be one or more different ways of obtaining this information.