Programmable Logic Controllers (PLCs) are the brains behind modern industrial automation. From controlling assembly lines to managing complex packaging systems, PLCs execute the logic that keeps manufacturing running smoothly. At AI Connects Engineering, our automation team delivers professional PLC programming services across all major platforms, helping Singapore manufacturers achieve greater efficiency and reliability.

What is PLC Programming?

A PLC is an industrial computer designed to control manufacturing processes—assembly lines, robotic devices, or any activity requiring high reliability and ease of programming. PLC programming involves creating the logic that determines how machines respond to inputs (sensors, switches, operator commands) and control outputs (motors, valves, indicators).

Unlike general-purpose computers, PLCs are built to withstand harsh industrial environments: extreme temperatures, electrical noise, vibration, and humidity. They provide deterministic, real-time control that's essential for safety-critical applications.

PLC Platforms We Support

Our engineers are proficient across all major PLC brands used in Singapore's manufacturing sector:

Siemens

S7-1200, S7-1500, TIA Portal

Allen-Bradley

ControlLogix, CompactLogix

Mitsubishi

iQ-R, iQ-F, FX Series

Omron

NX, NJ, CP Series

Programming Languages

We develop PLC programs using IEC 61131-3 standard languages, selecting the most appropriate for each application:

Ladder Diagram (LD)

Visual programming resembling electrical relay logic. Ideal for discrete control and easy troubleshooting by maintenance technicians.

Structured Text (ST)

High-level textual language similar to Pascal. Best for complex calculations, data manipulation, and algorithm implementation.

Function Block Diagram (FBD)

Graphical language using function blocks. Excellent for continuous processes and analog signal processing.

Sequential Function Chart (SFC)

Flowchart-style programming for sequential processes. Perfect for batch processes and state machine logic.

Our PLC Programming Services

New System Development

From concept to commissioning, we develop complete PLC control systems for new automation projects. This includes I/O design, control logic development, HMI integration, safety system programming, and comprehensive documentation.

System Migration & Upgrades

Aging PLCs pose reliability and obsolescence risks. We help manufacturers migrate legacy systems to modern platforms while minimizing downtime and preserving institutional knowledge embedded in existing programs.

Troubleshooting & Optimization

When production lines experience issues, our engineers diagnose problems, optimize cycle times, and implement improvements. We also provide remote support capabilities for rapid response to critical situations.

Integration Expertise

PLCs don't operate in isolation. We integrate control systems with HMIs, SCADA systems, robots, vision systems, and enterprise networks. Our team ensures seamless communication between all components of your automation infrastructure.

Industry Applications

  • Assembly Lines – Coordinating conveyors, stations, robots, and quality checks
  • Packaging Systems – Controlling filling, sealing, labeling, and palletizing equipment
  • Material Handling – Managing conveyors, AS/RS systems, and sorting equipment
  • Process Control – Regulating temperature, pressure, flow, and level in continuous processes
  • Test Systems – Automating functional testing, leak testing, and quality inspection
  • Building Automation – HVAC, lighting, access control, and energy management

Safety Systems Programming

For applications requiring functional safety, we design and program safety PLCs compliant with IEC 62061 and ISO 13849. This includes safety I/O configuration, emergency stop circuits, light curtain integration, and safety-rated motion control.

Documentation & Support

Every project includes comprehensive documentation:

  • Functional specifications and I/O lists
  • Program documentation with comments
  • Electrical schematics
  • Operator manuals and training materials
  • As-built drawings and backup programs

Need PLC Programming Support?

Whether you're building a new system or upgrading existing equipment, our automation engineers are ready to help.

Contact Us