CODESYS

CODESYS is a hardware-independent IEC 61131-3 automation development system used by OEMs, device manufacturers, and integrators to build portable PLC applications across multiple controller and runtime targets. Engineering Service delivers CODESYS V3 engineering services that emphasize standardized architectures, predictable commissioning, and long-term maintainability for multi-machine fleets. Their team develops new applications and modernizes legacy code using Structured Text (ST), Ladder Diagram (LD), Function Block Diagram (FBD), Sequential Function Chart (SFC), and Instruction List (IL where supported), applying CODESYS V3 object-oriented features (methods, interfaces, inheritance, namespaces) to create modular libraries and testable components. Software structures are aligned to ISA-88/ISA-95 concepts when batch, recipe, or enterprise integration is required, and they implement consistent naming, alarm philosophy, and diagnostics for operations and maintenance. For motion-centric equipment, Engineering Service engineers coordinated multi-axis solutions using CODESYS SoftMotion. They build deterministic task models, axis state machines, homing strategies, and cam/gear relationships, and they implement PLCopen Motion Control function blocks for standardized axis control. Typical scope includes kinematics configuration for gantry/robotic mechanisms (where applicable), jerk/accel tuning based on measured machine behavior, and separation of motion sequencing from HMI commands and permissives to reduce unintended interactions during commissioning. Integration with servo drives and distributed I/O is executed via industrial Ethernet supported by the selected target, including EtherCAT, PROFINET, and EtherNet/IP, with deliverables such as topology diagrams, addressing plans, device parameter backups, and fault-handling strategies to reduce MTTR. Engineering Service develops operator interfaces using CODESYS Visualization, implementing consistent HMI templates for navigation, alarm management, trends, and role-based security. They integrate runtime diagnostics (task load, communication health, device states) and design alarm/event structures that support root-cause troubleshooting rather than simple fault annunciation. Where customers require broader visibility, Engineering Service integrates CODESYS controllers with plant SCADA and data systems using OPC UA and MQTT patterns appropriate to the site architecture, ensuring tag models and time-stamping meet operational requirements. For lifecycle and fleet management, Engineering Service configures CODESYS Automation Server to enable secure remote access, device monitoring, and controlled software deployment. They establish version-controlled release workflows, define rollout/rollback procedures, and implement remote service strategies suitable for OEM field support. Security is addressed through credential management, network segmentation guidance, and alignment with IEC 62443 principles for industrial cybersecurity. When functional safety is in scope, Engineering Service supports projects using CODESYS Safety, coordinating the safety architecture, separation of standard and safety functions, and the validation evidence expected under IEC 61508 and IEC 62061. They help teams define safety requirements, implement safety interlocks, and produce traceable documentation to support verification and commissioning. Across CODESYS engagements, Engineering Service delivers complete project artifacts including software design specifications, I/O lists, network diagrams, simulation/FAT support, commissioning procedures, and as-built documentation—providing vendor-independent automation software that is portable, diagnosable, and ready for long-term support.