PLC & HMI programming
From a control requirement to a usable machine interface.
Explore servicePLC · HMI · SCADA · ELECTRICAL ENGINEERING
Clear control.
Confident
operation.
Control logic, operator interfaces and electrical engineering — connected around what your equipment needs to do.
Chongqing, China / Project-based engineering
ENGINEERING / HARDWAREHK — 01
Where logic meets
the physical system.
the physical system.
Brand reference image · not a case-specific photograph
Built around your processDefined project boundariesClear operator workflowsDocumented handover
WHAT WE DO
Three connected engineering disciplines.
Choose the scope you need. A software-only assignment and a cabinet-plus-control project require different responsibilities — we define them before development.
SCADA development
Bring distributed equipment information into a clear operating view.
Explore serviceControl-panel engineering
Connect the drawings, cabinet interfaces and control software.
Explore serviceSELECTED PROJECT EXPERIENCE
The engineering behind the interface.
See actual cabinet photographs and interface extracts from published projects, alongside the engineering decisions behind them. Historical images are clearly distinguished from illustrative diagrams.
Central monitoring
Multi-area equipment monitoring
A delivered monitoring-interface project that organises equipment visualisation, state information and area navigation around daily use.
Read engineering story
Automated storage
Robotic key-storage management
An integrated key-management system combines user identification, task management, PLC-controlled three-axis positioning and vacuum handling of individual key boxes.
Read engineering story
Water & process equipment
Twin dewatering control and local panels
A two-machine dewatering control scope brings grouped operation, process start/stop steps, adjustable delays and field control boxes into one electrical-engineering package.
Read engineering storyAPPLICATION EXPERIENCE
Different equipment.
A connected engineering approach.
Follow the published examples closest to your requirement. Each one identifies the actual evidence and the questions to resolve for a new project.
Water and process equipment
Pump groups, basin levels, dewatering machines and equipment-side control boxes. Define process order together with the operator and field interfaces.
Material-handling machinery
Conveyor areas, grouped drive operation and individual manual functions. Keep line-level control aligned with motor states and fault indications.
Automated storage and handling
Identity-linked tasks, position sequencing and physical pickup/return. Separate management information from the execution and confirmation of a movement.
Multi-area monitoring
Supervisory screen hierarchies and coordinated parameter management. Agree which data is read, which commands can be written and how exceptions are shown.
ONE SYSTEM, CLEAR RESPONSIBILITIES
From field signal
to operator action.
An attractive screen is only part of the job. The signals, control logic and interface must agree on what each state means.
How we define the scope01
Begin with the real equipment.
Agree the device list, measurements, actuators and signal interfaces before designing the control behaviour.
MeasurementsEquipment statesActuators
02
Make the operating rules explicit.
Define modes, sequences, permissives and fault behaviour — including which existing functions must remain unchanged.
ModesSequencesInterlocks
03
Present a clear next action.
Organise the overview, equipment detail, parameters and alarms around the people using the system.
OverviewParametersAlarms
Conceptual engineering flow · not a live equipment connection
WORKING TOGETHER
A clear path from scope to handover.
Engineering decisions are easier to verify when the expected functions, deliverables and responsibilities are agreed in advance.
- 01
Define the problem
Tell us what the equipment does, what is available now and what needs to change.
- 02
Agree the boundaries
Confirm the platform, deliverables, exclusions, responsibilities and acceptance checks.
- 03
Develop & review
Build the scoped logic, screens and documentation, then review them against the agreed requirements.
- 04
Test & hand over
Carry out the agreed checks, resolve observations and hand over the specified project files and records.
PREPARE A BETTER PROJECT DISCUSSION
Practical information.
Before the quotation.
Use the guides and blank checklists to prepare the materials, responsibilities and acceptance questions that matter to an engineering scope.
Preparing an automation project brief
A useful brief connects the process, available equipment and expected delivery. It does not need to be a complete design, but it should make the starting point and responsibilities clear enough for an engineering discussion.
Read practical guidePlanning changes to an existing control system
A retrofit begins by identifying what must stay unchanged. A visible new screen or extra function can depend on hidden assumptions in the existing program, so review the available files and the test boundary before making the change.
Read practical guideAgreeing testing and engineering handover
A working demonstration and an accepted engineering scope are different things. A clear checklist helps both parties understand what has been checked, what depends on the installation and what files or licences remain to be supplied.
Read practical guideSTART WITH THE REQUIREMENT
Tell us what your
equipment needs to do.
A process description and an equipment list are a useful starting point.