Service · PLC & HMI Programming
Real-Time Control, Programmed the Right Way.
Expert PLC programming across every major platform — plus HMI/SCADA development and motion integration that put real-time control in your operators' hands.
Platforms We Program.
Our team is fluent across the PLC and HMI ecosystems that drive modern manufacturing — so we can pick the right tool for your facility, not the only tool we happen to know.
Allen Bradley
Studio 5000, RSLogix 5000/500, ControlLogix, CompactLogix, MicroLogix, FactoryTalk View.
Siemens
TIA Portal, Step 7, S7-1200/1500, WinCC HMI/SCADA, PROFINET architecture.
Omron
Sysmac Studio, CX-One, NJ/NX controllers, NA Series HMI.
And more
Mitsubishi, Beckhoff, and other platforms supported on request.
Full-Stack Scope.
Whether you're modernizing a legacy line, building a new cell, or adding real-time visibility to production, we handle the full programming stack — from PLC logic to operator interface to motion integration.
And because we document everything cleanly, your team can support and extend the system long after we hand it off.
- New PLC program development
- Legacy program reverse-engineering and modernization
- HMI/SCADA design (FactoryTalk, WinCC, Ignition, NA)
- Motion control and servo integration
- Recipe management and batch control
- OEE, downtime tracking, and real-time dashboards
- Remote access and secure VPN setup
- Documentation, training, and turnover packages
What Our Clients Say.
“Apex took over a PLC migration that had stalled with another vendor and finished it cleanly. Code is well-organized and easy for our team to support.”
“Their HMI redesign cut nuisance alarms in half and our operators actually trust the screens now. Huge quality-of-life win on the floor.”
“Fast, communicative, and they hit the commissioning window. We were producing parts the same day the new logic went live.”
Frequently Asked Questions.
Which PLC and HMI platforms do you program?
We program Allen-Bradley (ControlLogix, CompactLogix, MicroLogix), Siemens (S7-1200/1500, TIA Portal), Mitsubishi, and Omron, and develop HMIs in FactoryTalk View, Ignition, WinCC, and Wonderware/AVEVA.
Can you migrate legacy PLCs (PLC-5, SLC-500, etc.) without re-doing field wiring?
Yes. We routinely migrate PLC-5, SLC-500, and other legacy controllers to modern platforms using conversion modules and pre-planned cutover sequences that minimize re-wiring and downtime.
Will you provide commented, well-structured code?
Always. We follow consistent naming, structured routines, and clear comments so your in-house team — or any future integrator — can support the system without reverse-engineering it.
Do you provide operator training?
Yes. We include hands-on operator and maintenance training at commissioning, plus written runbooks for common alarms and recovery procedures.
Can you support our system remotely after go-live?
Yes. With a secure VPN or remote-access appliance we can troubleshoot, tune, and update logic remotely, which dramatically shortens response time when issues come up.