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Applied Sciences Group is a leading provider of automation solutions to commercial and industrial applications.
Case Study: AC Drive Network Driver Development

Project Description:
A customer needed to network together a series of AC drives and a SCADA package. For the drives being used (CT drives) no software existed that could link them to a SCADA or other control package. The customer requested that the network communicate to an Intellution SCADA package.

Approach:
Applied Sciences Group designed and developed a fully functional X-Link Driver for a network of AC drives, as well as an Intellution FIX Driver, Loadable Database Block, and Graphical Dynamo. The CT-Net driver development included all software engineering, programming, and support.

X-Link Driver Development
Construction of the driver for the X-Link gateway involved adding components to the X-Link kernel to enable communications via X-Link between dissimilar networks. The custom CT-Net driver allows users to communicate from CT-Net through X-Link to any communications scheme that has an X-Link driver.
Intellution FIX Driver
The transfer of information between the CT drives and the FIX Database were provided. An Intellution-style I/O driver was produced which communicates with Scan, Alarm and Control (SAC) through Driver Image Tables, representing a significant amount of work in addition to the communications DLL. Once completed, the driver was outwardly identical to other FIX drivers and was installed/configured through the System Configuration task (SCU). Applied Sciences Group engineers had attended the I/O driver instructional seminars provided by Intellution and Applied Sciences Group possessed the required I/O Driver Tool kit and manuals.
Intellution Loadable Database Block
A set of appropriate database blocks (analog inputs, analog outputs, and calculation blocks for scaling) was developed to provide flexibility. End users were ultimately provided with a generic set of database files (packaged as a text files) with the ability to be imported into any Intellution Database.
Intellution Graphical Dynamo
A Graphical Dynamo was produced to aid in screen development. This was accomplished by working closely with the customer to achieve desired results.

Results:
This effort successfully resulted in a general-purpose X-Link driver package that allows communication between CT drives and other devices on an X-Link network. Close cooperation and communication with the customer was essential to the project's success.

 
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