One partner for the full machine lifecycle.
We design, develop and validate automation equipment for Automation Suppliers. Electrical, controls and software engineering, delivered by one integrated team.
One partner for the full machine lifecycle.
OjasQuest has been part of the CII National Committee on Robotics & Automation, and led the CII National Committee on IT/IoT Application in Robotics in 2025. Refer to the Thought Leadership Report released on Robotics, Drones & Automation.
We work with machine builders and automation OEMs to design, develop and support the equipment that assembles, packages, inspects and moves products. We have expertise and experience in PLC, SCADA, HMI and MES systems, and hands-on experience with tools and platforms like EPLAN, AutoCAD Electrical, Siemens TIA Portal 14 and above, Rockwell Studio 5000, FactoryTalk, Beckhoff TwinCAT and CODESYS.
Tools & platforms
Our PLC expertise includes
- Siemens S7-1500, S7-1200 v2.0 and above
- AutomationDirect Stride, Productivity 1000 CPU (P1-540)
- Rockwell Automation: Allen-Bradley
- OPC UA for Programmable Logic Controllers based on IEC 61131-3
We drive innovation across the value chain
Motion Control
Servo systems, drives, precision positioning, and coordinated motion solutions.
Robotics
Welding, pick-and-place, palletizing, and robotic automation systems.
Material Handling
AGVs, AMRs, conveyor systems, and automated storage & retrieval systems (ASRS).
Smart Manufacturing (Industry 4.0)
Edge computing, cloud platforms, AI-driven analytics, and digital twins.
Electrical and controls engineering
With hands-on expertise in EPLAN, AutoCAD Electrical, Siemens TIA Portal, Rockwell Studio 5000, Beckhoff TwinCAT and CODESYS, we deliver complete electrical and controls engineering, from the first schematic to a running machine.
Electrical schematics and control panel design
- Multi-sheet schematics, terminal plans and panel layouts generated from a single EPLAN or AutoCAD Electrical project
- Panel designs aligned to IEC 60204-1, IEC 61439 and UL 508A, as your market requires
- Automated BOMs, wire lists and cross-references, which reduce manual errors
Component selection, load calculations and cable scheduling
- Sizing of power supplies, protection devices, drives and cables based on actual load and duty cycle
- Heat-load calculations for panel cooling
- Vendor-neutral selection that balances cost, lead time and availability
PLC programming and HMI/SCADA development
- Structured, reusable code in IEC 61131-3 languages (Ladder, Function Block, Structured Text, SFC)
- Standard code libraries and templates that cut development time on repeat machines
- Intuitive HMI screens with alarms, recipes, diagnostics and data logging
Servo, motion control and robot integration
- Single-axis and multi-axis motion, including electronic gearing and camming
- Drive tuning for speed, accuracy and smooth operation
- Integration with robots, vision systems and field devices over EtherCAT, PROFINET and EtherNet/IP
Safety circuit design and functional safety support
- Safety circuit design for e-stops, guard interlocks, light curtains and safe motion
- Support for Performance Level (PL) assessment under ISO 13849-1, and SIL under IEC 62061
- Safety PLC programming and validation documentation
Embedded systems and software
We develop reliable, maintainable firmware and software that make machines smarter, easier to integrate and simpler to support in the field. Our engineers work across hardware such as ARM Cortex-M, STM32, NXP and TI, operating systems such as FreeRTOS, Zephyr and embedded Linux/Yocto, and languages such as C, C++, Python and C#.
Embedded firmware for controllers, sensors and drives
- Bare-metal and RTOS-based firmware for custom controllers, smart sensors and drive electronics
- Board bring-up, device drivers, bootloaders and secure firmware updates
- Coding practices aligned to MISRA C, with IEC 61508 support where functional safety applies
Industrial communication
- Protocol integration for EtherCAT, PROFINET, EtherNet/IP, Modbus RTU/TCP and OPC UA
- Gateway and protocol-conversion development for connecting legacy and modern equipment
- Network design and troubleshooting for reliable, deterministic communication
Machine data collection, dashboards and IIoT integration
- Edge data collection from PLCs, sensors and drives using OPC UA and MQTT
- Real-time dashboards for OEE, downtime, alarms and energy use
- Integration with MES, ERP and cloud platforms such as AWS IoT and Azure IoT
- Security-conscious architecture following IEC 62443 principles
Vision system integration and inspection software
- Integration of smart cameras and vision systems such as Cognex, Keyence and Basler
- Custom inspection software for presence checks, measurement, OCR and defect detection, using libraries such as OpenCV and HALCON
- Vision-guided robotics and closed-loop quality control
Desktop and web applications for machine configuration and diagnostics
- Configuration, commissioning and service tools for machine builders
- Remote monitoring and diagnostics that cut site visits and speed up troubleshooting
- Clean, intuitive interfaces built for operators, technicians and engineers
Simulation and virtual commissioning
We build accurate digital models of machines, robot cells and production lines, then run the real control code against them. This finds design and logic errors early, when changes cost least. Our engineers work with tools such as Siemens Process Simulate, NX Mechatronics Concept Designer, Plant Simulation, Visual Components, Rockwell Emulate3D and RoboDK.
Kinematic and cycle-time simulation
- Motion studies to check reach, clearances and interference between moving parts
- Cycle-time analysis to find bottlenecks and balance stations before build
- “What-if” comparisons of layouts, sequences and equipment options
Digital twin models of machines and lines
- 3D models linked to physical behaviour: sensors, actuators, conveyors and product flow
- Reusable component libraries for faster modelling of repeat machines
- Plant- and line-level flow simulation for throughput, buffer sizing and resource planning
Virtual commissioning of PLC code
- The real PLC program runs against the simulated machine, using emulators such as Siemens PLCSIM Advanced and Beckhoff TwinCAT simulation
- Sequences, interlocks, alarms and fault recovery tested before hardware arrives
- HMI screens validated with operators ahead of installation
Robot reach and offline programming
- Robot selection and placement studies to confirm reach, payload and cycle time
- Offline programming and collision checking using ABB RobotStudio, FANUC ROBOGUIDE or RoboDK
- Programs ready to download on site, reducing manual teaching time
Testing, validation and documentation
We help you prove that a machine meets its requirements before it ships, and we deliver the documentation your customers, auditors and maintenance teams rely on. Our engineers bring a structured, traceable approach to verification, from the first design review to final handover.
Test planning, FAT and SAT support
- Test plans and protocols traced back to customer requirements
- Factory Acceptance Test (FAT) and Site Acceptance Test (SAT) preparation, execution and reporting
- Punch-list tracking and closure through to customer sign-off
Design verification and validation
- Design reviews, DFMEA and requirement traceability matrices
- Functional, performance and endurance testing of machines and subsystems
Risk assessment and compliance support
- Machine risk assessment aligned to ISO 12100
- Safety function validation in line with ISO 13849-2
- Technical file preparation to support CE marking under the EU Machinery Directive 2006/42/EC, and the new Machinery Regulation (EU) 2023/1230 as it comes into force
Technical documentation
- Operator and maintenance manuals structured along the lines of IEC/IEEE 82079-1
- Spare-parts lists, exploded views and recommended spares
- As-built drawings, electrical schematics and commented control code handed over as one controlled package
Sustaining engineering and product improvement
Launch is only the start of a product's life. We take on the ongoing engineering that keeps your installed base running and your product line profitable.
That frees your core team to focus on new development. Our engineers work within your processes and PLM/PDM systems, such as Windchill, Teamcenter and SolidWorks PDM.
Engineering change management
- End-to-end handling of engineering change requests and notices (ECR/ECN)
- Impact analysis across drawings, BOMs, control code and documentation
- Controlled release and revision management, so production always builds to the latest approved design
Value engineering and cost reduction
- Design reviews to cut part count, material and machining cost
- Alternate component and supplier evaluation without compromising performance
- Design for manufacture and assembly (DFM/DFA) improvements that shorten build time
Obsolescence management and component redesign
- Monitoring of end-of-life notices for critical electrical and mechanical components
- Like-for-like or form-fit-function replacements, with redesign where needed
- Control platform migrations, for example from legacy Siemens S5/S7-300 or Rockwell PLC-5/SLC 500 to current platforms
Retrofits and upgrades of legacy machines
- Controls, drives, HMI and safety system upgrades that extend machine life
- Adding connectivity, data collection and remote diagnostics to existing equipment
- Phased upgrade plans that minimise production downtime
Legacy drawing migration and 2D-to-3D conversion
- Conversion of paper, scanned and 2D CAD drawings into intelligent 3D models
- Clean-up and standardisation of CAD data, BOMs and part numbering
- Migration of legacy data into your current PDM/PLM system
How we engage across every sector
Embedded Engineering
Firmware, BSP, drivers and device integration for regulated sectors.
Cybersecurity & Compliance
IEC 62443 and CRA readiness for industrial products.
Industrial Connectivity
OPC UA, HART, Modbus and protocol engineering across all verticals.
AI-Assisted Engineering
Practical AI applied to diagnostics and operational decisions.
Legacy Modernisation
Incremental modernisation that protects proven IP.
Digital Engineering
Cloud-connected platforms and data services for industry.
Have a complex engineering
challenge?
From industrial automation and IIoT to embedded, cloud and digital engineering, we help turn complex technical challenges into reliable, scalable solutions.