Managed IT for Manufacturers: ERP, Shop-Floor PCs, and Uptime
IT for a manufacturer covers three different worlds. The office runs email, accounting, quoting, and the ERP system. The shop floor runs workstations at machines, label printers, barcode scanners, and the software that tracks jobs. And the machines themselves — CNC controls, PLCs, HMIs — run on operational technology that was never designed to sit on a network. When any of the three goes down, production stops. Good manufacturing IT support is built around keeping all three running and keeping them apart.
The ERP is the heart of the business
Orders, inventory, scheduling, purchasing, and shipping all flow through the ERP. Whether it runs on a server in the building or in the cloud, it needs the most attention of any system you have: performance monitoring, backups that capture the database correctly, tested restores, and a planned approach to upgrades. ERP upgrades touch every department, so they should be scheduled around production, tested in a copy first, and coordinated with the software vendor. Your IT provider should be the one on the phone with the ERP vendor when something breaks, not your production manager.
Computers that survive the shop floor
Office PCs do not last long next to machining centers. Dust, metal particles, heat, vibration, and coolant mist kill fans and drives. Fanless industrial PCs or proper enclosures cost more up front and far less over their life. Beyond the hardware:
- Build from a standard image so a failed workstation can be swapped in minutes, with a spare on the shelf.
- Replace shared logins with kiosk setups or quick badge sign-in, so you know who did what without slowing operators down.
- Schedule updates around shifts. A Windows restart in the middle of a run is not acceptable; patching should happen in planned windows that production agrees to.
- Plan Wi-Fi for the plant. Steel racking, machinery, and high ceilings demand a proper wireless survey for scanners and tablets.
Machines you cannot patch
Machine controllers and HMIs often run old versions of Windows that the equipment maker controls, and some cannot be updated at all without voiding support. They need protection from the network rather than on the device: put them on their own segment, allow only the connections they need, such as file transfers of CNC programs from a specific server, and block internet access. Vendor remote access should go through a controlled, logged connection that is turned on when needed — not a remote control app left running permanently. We cover the design in network segmentation for manufacturing.
Why attackers target manufacturers
Manufacturing has ranked among the most-attacked industries in several recent threat reports. Ransomware groups know that a stopped production line creates enormous pressure to pay, and many plants still run flat networks where an infected office PC can reach the machines. The core defenses are the same as anywhere — MFA, endpoint detection and response, patching, and backups attackers cannot delete — plus the segmentation that keeps an office incident from becoming a plant shutdown.
Customers are asking about security
Defense supply chain manufacturers face CMMC requirements; see our CMMC guide. Automotive, aerospace, and medical-device customers increasingly send security questionnaires before awarding work. Having controls in place and documented turns those requests into a formality; our guide to answering security questionnaires shows how.
Plan for a bad day
Back up the things that are hard to recreate: the ERP database, CNC programs, machine configurations, quality records, and drawings. Store copies offsite and offline. Write down how the plant would operate if the ERP were unavailable for two days, which orders would ship first, and who decides. Then practice it in a tabletop exercise, before you need it.
Support that works on production time
Plants often run more than one shift. IT support should match: clear after-hours coverage for anything that stops production, maintenance windows agreed with the plant manager, and someone who can be onsite quickly when hands are needed. A provider that only works nine to five, Monday through Friday, will struggle to support a business that runs around the clock.
IT support built for manufacturing
Equal Tech Solutions supports manufacturers across Cleveland, Chattanooga, and the Southeast with managed IT, OT-aware security, and recovery planning. See how one manufacturer prepared for CMMC and recovered from ransomware in this case study, or contact us to talk about your plant.