Engineering · 03
Automation & control, from instrument to operator screen.
PLC programming, SCADA and HMI, and control architecture that connect instruments, equipment and building systems into one testable, documented whole.
- PLC programming
- SCADA / HMI
- Control architecture
- Instrumentation interfaces
- Building automation
- IoT & systems integration
Control architecture
Four levels, designed as one system.
Read from the field up. Signals rise from instruments to controllers, operator screens and wider platforms; commands travel back down. We define what happens at each level and how the levels talk to each other.
L4Enterprise
Enterprise
Business systems, reporting and the software platforms that use operational data.
Systems integration & IoT
Communication between controllers, devices and software platforms, with data made available to wider systems.
L3Supervisory
Supervisory
SCADA and HMI stations, alarm handling, trends, building management.
SCADA and HMI
Operator screens, alarm handling and trend views designed around the tasks operators actually perform, including monitoring of building services.
L2Control
Control
PLCs and controllers running logic, interlocks and sequences.
Control architecture & PLC programming
Controller topology, network layout and I/O allocation defined before programming starts. Structured, commented logic with interlocks, alarms and sequences traceable to the functional description.
L1Field
Field
Sensors, transmitters, valves, motors and building services equipment.
Instrumentation interfaces
I/O lists and signal definitions for sensors, transmitters and actuators, including ranges and scaling.
Typical technical artifacts
What a project can include.
The exact package is agreed from your context, risk, timeline and responsibilities.
Traceable by design. Control logic and operator interfaces are traced back to an agreed functional description, so behaviour can be reviewed before it is tested.
| Artifact | What it contains |
|---|---|
| 01Control architecture | Controller topology, network layout and I/O allocation defined before programming starts. |
| 02PLC programming | Structured, commented control logic with interlocks, alarms and sequences traceable to the functional description. |
| 03SCADA and HMI | Operator screens, alarm handling and trend views designed around the tasks operators actually perform. |
| 04Instrumentation interfaces | I/O lists and signal definitions for sensors, transmitters and actuators, including ranges and scaling. |
| 05Building automation and IoT | Monitoring and control of building services and connected equipment, with data made available to wider systems. |
| 06Systems integration | Communication between controllers, devices and software platforms, with test records against the agreed acceptance criteria. |
A good fit for
Where this work usually starts.
Engagement flow
Brief → Scope → Design → Delivery → Support
Milestones, review points and acceptance criteria remain visible from start to handover.
- 01
Industrial or building processes that need a defined control strategy and PLC logic
- 02
Equipment that operators need to monitor and diagnose through HMI or SCADA
- 03
Existing controllers, instruments and software that need structured integration
- 04
Buildings adding automation or IoT monitoring alongside established services
Start a conversation
Have a process, plant or building to control? Talk us through it.
Tell us what must be measured, controlled and seen by operators. We will come back with the control architecture we would propose and the questions to settle first.
Inquiries are routed to the relevant practice lead.