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Secure Systems Integrators

Control system design

Control systems designed, programmed, built and commissioned by one team.

Machine and process control for food and beverage, manufacturing, mobile plant and heavy industry. We travel beyond South-East Queensland whenever the job warrants it.

01 · PLC & HMI programming

Code that outlives its author.

Structure decides whether a program can be changed quickly and safely in five years' time. Clever code only its author understands is a liability.

  • Consistent naming, and sequences that match how the machine actually runs
  • Comments that explain why, not what
  • Changes to running plant: read the logic first, know what can change online, and always have a way back
  • HMIs built around the task, with alarms that say what's wrong and what to do
  • CODESYS, Rockwell Automation and Siemens TIA Portal, plus CANopen and ifm devices

02 · Control system design

From process to I/O.

The expensive mistakes are the early ones: the wrong architecture, an undersized network, safety added late. Decisions made in a week set running costs for a decade.

  • Architecture first: what's controlled, measured, interlocked, and must keep running on partial failure
  • Safety designed in from the start, with safe states for loss of power, air and signal
  • Networks segmented and secured from day one, not retrofitted
  • Hazardous-area experience to IECEx and ATEX requirements
  • Drawings, I/O schedules and functional descriptions as part of the deliverable

03 · 3D design & panel build

Panels you can see before they're built.

Panel jobs usually start with a description and end with a surprise. Ours start with a true-scale drawing and a 3D render, made with our own 3D design software. We produce 3D designs and drawings for other builders too.

A finished control panel built from the 3D design
  • Layout, BOM, wiring schedule and render, all before anything is cut
  • 3D designs, drawings and models supplied for your workshop, approvals or tenders
  • Serviceability settled at layout: terminal access, drive heat clearance and door clashes
  • Documentation from the same model, so the drawings match the built panel
  • Design-only packages for your own workshop to build from
  • Modifications to existing panels where that beats replacing them

04 · Commissioning

Proving it works under real conditions.

Bench success isn't site success. Commissioning is where the difference shows up, and it's the phase most likely to be squeezed when a project runs late. We don't squeeze it.

Distributed I/O in a sealed enclosure with M12 connectors
  • Every sequence, interlock, alarm and safely inducible failure tested
  • Methodical fault-finding on plant that won't behave, including intermittent faults
  • Shutdown windows, night work and staged cutover planned in from the start
  • Handover that walks operators and maintainers through it properly
  • Systems commissioned whoever designed them

05 · Modern HMIs

Operator screens from this decade.

Every system we deliver comes with a modern HMI that's fast, clear and secure by default, and honest about whether a value is live. It runs on rugged machine displays or PCs, over the PLC you already have.

The screen editor and the same screen running on an industrial display
  • Every value marked Good, Stale or Bad, so a frozen number never passes as live
  • Screen changes pushed to the running display in about a second
  • Signed updates that roll back automatically if they fail
  • Alarm handling built following ISA-18.2 / IEC 62682
  • Try one live in your browser

From design to built panel

Every drawing comes from the same model as the built panel.

Request a 3D design
3D render built from manufacturer geometry
013D render, from manufacturer geometry
True-scale 2D layout the workshop builds from
02True-scale layout the workshop builds from
Conductors routed through duct
03Routed wiring: the source of the schedule and cut lengths
General arrangement drawing sheet
04GA drawing from the same model
The built control panel
05The built panel
Terminal detail of the built panel
06Terminal access, decided at layout

How work is engaged

Two ways to work together.

Pick whichever fits the job. Not sure yet? Tell us about it and we'll suggest one.

Grouped technical hours

A block of hours drawn down as needed. Suits fault-finding, modifications, iterative work and ongoing support: anything that can't be fully specified up front.

Fixed-scope project

A defined deliverable, quoted against an agreed scope. Suits new systems, panel builds and upgrades where the requirements are clear.

Questions

Common questions.

Can you work on a machine someone else programmed?
Yes. We read the code and establish what it actually does before changing anything.
Can you design a system for someone else to build?
Yes. We can supply a full design package (layout, BOM, wiring schedule, build sheets and I/O) for another workshop or builder.
Do you do the electrical work too?
Control and low-voltage work, yes. Licensed electrical work, such as supply termination and motor installation, is done by licensed electricians.
We have an intermittent fault nobody can find. Can you help?
Yes. We instrument the problem, narrow it down and change one thing at a time. Intermittent faults are usually mechanical, environmental or a marginal signal, not the code.
Do you travel?
Yes. We're based in South-East Queensland and travel for commissioning and project work across Australia and overseas.

Got a system that needs work?

A new build, a modification, or a fault nobody can pin down. Tell us what you're dealing with.