From decreased productivity to system downtime, legacy equipment can pose many challenges to operational efficiency. This was the case for a leading consumer packaged goods company who was relying on PLC-5 hardware to control most of their facility. The plant recently experienced a major disruption during peak production because of a network switch failure, and it was later discovered that the disruption could have been minimized if the facility had been separated into multiple virtual local area networks (VLANs). To support the creation of VLANs, the customer’s existing PLC-5 control system would need to be upgraded to the ControlLogix system which could handle multiple independent Ethernet connections. Automation Group was called to support the project given their previous assistance with consolidating the company’s DH+ and ControlNet network communications in support of their industrial automation applications.