Question 1

What PLC platforms do you program?

Accepted Answer

Our primary platform is WAGO — the PFC200 and PFC300 controllers with the modular 750-series I/O system — programmed in CODESYS to the IEC 61131-3 standard. Because CODESYS and IEC 61131-3 are open standards rather than one vendor's dialect, the logic structure transfers across other CODESYS-based controllers. We also work with existing installations on other platforms where the task is integration, gateway work or extending what is already running rather than a ground-up rebuild.

Question 2

What is the difference between a PLC and a building automation controller?

Accepted Answer

They overlap more than they used to. A building controller running KNX or BACnet is optimised for lighting, HVAC and comfort, with a device library and tooling built around those. A PLC is a general-purpose, deterministic logic engine built for plant: interlocks, sequencing, safety-adjacent control and hard real-time response, in environments where an unplanned stop costs real money. WAGO sits deliberately across both, which is why it suits mixed sites — a building with a plantroom, a factory with an office block. We frequently gateway the two so a plant runs on PLC logic while reporting into the building system.

Question 3

Can you integrate our plant with our building management system?

Accepted Answer

Yes — protocol gateway work is a significant part of what we do. The common pattern is equipment speaking Modbus RTU or TCP that needs to appear in a BACnet-based BMS, or a KNX building system that needs plant status and metering from the industrial side. We build the mapping, handle the byte-order and scaling details that cause most integration grief, and document the register map so the next person is not reverse-engineering it. MQTT is increasingly the answer where data needs to reach a cloud platform rather than just a local head-end.

Question 4

Do you work with legacy or obsolete equipment?

Accepted Answer

Regularly. Plant frequently outlives the controller that runs it, and the usual situation is working machinery attached to a PLC nobody supports and for which no program listing exists. Where it makes sense we interface to the old equipment and extend its life rather than replacing it, using remote I/O and protocol converters. Where the controller is genuinely end-of-life we plan a staged retrofit so production is not stopped for a wholesale changeover. We will tell you which of those two situations you are actually in.

Question 5

What is FAT and SAT, and why does it matter?

Accepted Answer

Factory Acceptance Testing means proving the control system works on the bench, simulating field inputs, before it goes anywhere near your site. Site Acceptance Testing repeats the verification once installed against the real plant. The reason it matters commercially is that faults found at FAT cost a fraction of faults found at SAT, and faults found after handover cost a multiple again — usually including downtime. We build FAT into the programme rather than treating commissioning as the first real test.

Question 6

Do you provide ongoing support for industrial control systems?

Accepted Answer

Yes, and we hand over the source project as standard so you are not dependent on us. Support ranges from remote diagnostics over a secure connection through to scheduled site visits. We also take on systems somebody else built, including undocumented ones — recovering the logic, re-documenting it and taking over maintenance. That takes an initial audit, but it removes the single point of failure of a controller nobody understands.

Industrial Automation & Control

Engineering Excellence

Protocols We Bridge

Where We Work

WAGO PLC & I/O

Protocol Gateway

Plant & HVAC Control

SCADA & HMI

Cybersecurity

Custom Logic

Where We Deploy

Critical Infrastructure Control

Redundancy

Remote Telemetry

Environmental

Legacy Retrofit

Common Questions

How We Deliver

Requirement Analysis

Hardware Specification

Programming (IEC 61131)

FAT & SAT