Products used: Packaging company machine retrofit

In a machine retrofit, annual operating costs decreased more than 25% with use of AutomationDirect ProSense vacuum pressure transmitters, DirectLogic DL06 PLCs, Durapulse variable frequency drives, and C-more HMI. See related application story.


New blower motor drives dramatically reduce energy costs by allowing motors to run at less than full speed, depending on machine requirements. Courtesy: AutomationDirectIn a retrofit to improve efficiency of wicket-style bag-making machines, the Trinity Packaging plant in Pueblo, Colo., used AutomationDirect ProSense vacuum pressure transmitters, DirectLogic DL06 PLCs, and Durapulse variable frequency drives for the control and monitoring system.

AutomationDirect C-more HMI touchscreen panel displays and helps with data interpretation. An Ethernet card in the DL06 PLC communicates to the C-more touchscreen HMI.

Drives communicate directly with the HMI using the Modbus protocol. Use of Modbus protocol eliminated wiring and associated costs, avoiding the need to buy analog sensors to send current, rpm, and other readings to the C-more HMI, which transmits that information digitally from each drive to the HMI.

Images and specifications are available on the plant floor from the HMI touchscreen. A new project to use the latest AutomationDirect PLCs is underway to upgrade Trinity’s older equipment in other parts of the plant.

About the company

Trinity Packaging Corp. is a privately held family business. Founded in 1917 as a paper bag converter, Trinity Packaging installed its first plastics extruder in 1979. Since then it has expanded its focus to include the flexible films market, enabling the company to offer a wider variety of products. The company has three plant locations in the U.S. that manufacture plastic products for a broad base of American customers in a wide range of industries.

- Charles Landry is maintenance manager, Trinity Packaging Corp. Edited by Mark T. Hoske, content manager CFE Media, Control Engineering and Plant Engineering,


Learn more about machine retrofit details below. 

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
Variable speed drives: Smooth, efficient, electrically quite motion control; Process control upgrades; Mobile intelligence; Product finalists: Vote now; Product Exclusives
Machine design tips: Pneumatic or electric; Software upgrades; Ethernet advantages; Additive manufacturing; Engineering Leaders; Product exclusives: PLC, HMI, IO
This article collection contains the 5 most referenced articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security