Upgrade aging controls
Replace unsupported PLC hardware, refresh HMIs, and modernize control systems that have become difficult to maintain or risky to leave in place.
Industrial automation • PLC upgrades • remote monitoring
Industrial automation and PLC upgrades for manufacturers, utilities, and water systems
iiOTec helps practical operating teams modernize aging controls, improve system visibility, and complete focused automation projects without overbuilding the solution.
Established
Automation support rooted in decades of controls and monitoring work with a strong 90% repeat customer base.
Practical
Focused help for teams upgrading aging PLCs, HMIs, and remote systems.
Green Bay
Plus support for manufacturers, utilities, and water or wastewater operators across NE Wisconsin, the Upper Midwest and the Caribbean.
Failures add up fast in a high speed environment!
Improve remote visibility
Give operators and managers clearer alarms, trends, and system status across plants, utilities, wells, tanks, lift stations, and other remote assets.
Support practical automation projects
Work with a team that helps smaller to midsize operators solve real controls problems with focused engineering support in areas like SCADA, machine vision, and system modernization.
Project fit
When iiOTec is a strong fit
Since 1992, iiOTec has helped smaller to midsize manufacturers modernize controls, and since 1996 the company has delivered remote monitoring systems for operations that need better visibility without unnecessary complexity.
We work best as a trusted extension of your manufacturing team.
A “your ideas, our implementation” approach—turning your process knowledge into reliable, production-ready automation.
01
Older PLCs, panels, and undocumented systems
iiOTec is a strong fit when a plant is dealing with aging PLC hardware, outdated operator interfaces, or control systems that were expanded over time with limited documentation and now need a practical modernization path.
02
Remote monitoring, IIOT, and MQTT visibility
iiOT is in our name; where operators or managers need remote monitoring, alarm visibility, and status data using cellular modems or plant internet, especially when the goal is clearer oversight rather than an expensive SCADA project.
03
Specialized automation work
We're also the right kind of partner for targeted projects involving complete control systems, automated inspection stations, machine vision, desalination, pump control, or related automation work for water and wastewater operations.
Where iiOTec helps most
Practical automation services
iiOTec focuses on the kinds of automation work that improve reliability, visibility, and maintainability without turning every upgrade into a massive capital project.
- For manufacturers, process operations, and water or wastewater operators.
- For PLC upgrades, control systems, and remote monitoring projects.
- For machine vision, pump control, desalination, and MQTT-based visibility.
PLC upgrades and panel modernization
Over 50% of iiOTec’s work is PLC/HMI machine upgrades, making this a core service area for plants running aging hardware, dated operator interfaces, or hard-to-support control panels.
Core upgrade workRemote monitoring and IIoT visibility
iiOTec designs remote monitoring and data solutions that help teams see alarms, status, and performance more clearly, whether the connection is through cellular modems or existing plant internet.
Monitoring and dataMachine vision and inspection systems
Automatic vision solutions are part of iiOTec’s offering for applications that need inspection, analysis, motion-related guidance, or a more consistent quality check than manual review can provide.
Vision applicationsWater, wastewater, and pump control
iiOTec also supports water, wastewater, desalination, pump, and lift station automation projects, including remote monitoring applications where operators need responsive oversight across distributed assets.
Utility systems
Testimonials
What our clients are saying -
Faster, more practical PLC support than OEM tech lines: "Thanks for all of your assistance with the replacement recommendations. You’re certainly much faster and more thorough than RA’s technical support!”
Deep expertise in equipment programming and integration:
"They are some of the most knowledgeable engineers in equipment programming and integration that I have had the pleasure of working with."
Long‑term support and commitment:
“Thank you for this support. In your wildest dreams did you ever think you’d still be servicing this machine 20 years later? Very impressive.”
Experience and credibility
Built on decades of automation work
Established in 1992 as A.C.E. and now operating as iiOTec, the company has spent more than 25 years helping smaller to midsize manufacturers improve automation, and has delivered remote monitoring and data solutions since 1996.
1992
Originally established as A.C.E. before becoming iiOTec.
1996
Remote monitoring systems in the field since the mid-1990s.
25+ years
Supporting smaller to midsize manufacturers with practical automation work.
From complete control systems to automated inspection stations, iiOTec works hand in hand with clients to specify the right equipment for the process and turn verbal or written process descriptions into reliable automation systems.
Complete control systems
Automated inspection stations
Machine vision
Desalination and pump control
IIOT and MQTT solutions
iiOTec Quick FAQs
What does iiOTec do?
We design, upgrade, and support practical automation, PLC, and control systems for manufacturers, utilities, and water or wastewater operations.
Where does iiOTec work?
We’re a PLC integrator based in Green Bay serving Northeastern Wisconsin, with regular projects in Milwaukee, Chicago, and select destinations such as the Caribbean.
Does iiOTec work in water and wastewater?
Yes — including pump stations, lift stations, desalination, and remote sites that need reliable automation and remote monitoring.
Can iiOTec upgrade older PLC systems?
Yes. Upgrading legacy PLC systems and modernizing control panels is one of our strongest fits.
More questions? See the full iiOTec FAQ page.
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