PLC Programming & Control Systems
All major PLCs and HMIs — Rockwell, Schneider Electric and Siemens — across LL, 984LL, FBD, SFC and STL.
syTechnologies develops, modifies, troubleshoots and commissions PLC applications for new installations, plant expansions and legacy-control-system upgrades.
PLC platforms
- Schneider Electric — Modicon M340, M580 and legacy Quantum systems using Control Expert/Unity Pro.
- Rockwell Automation — ControlLogix, CompactLogix and MicroLogix systems using Studio 5000 / RSLogix environments.
- Siemens — S7-300, S7-400, S7-1200 and S7-1500 systems using STEP 7 and TIA Portal.
Programming and control
- Ladder Diagram / Ladder Logic.
- Function Block Diagram.
- Structured Text.
- Sequential Function Chart and sequence control.
- Legacy 984 Ladder and STL support where required for migration projects.
- Motor, valve, VSD, soft-starter and instrumentation control.
- PID control, permissives, interlocks, alarms and plant sequences.
Communications and device integration
- Modbus TCP and Modbus RTU.
- EtherNet/IP.
- Profinet and Profibus.
- OPC UA / OPC DA.
- DeviceNet and legacy fieldbus integration where required.
- RS-232 / RS-485 serial communications.
Testing and commissioning
Software can be prepared for simulation, FAT and staged commissioning before live cutover. Site work can include I/O checks, loop checks, sequence testing, drive integration, alarm verification, interlock testing and production start-up support.
Need a quotation?
Send us the scope and we will come back to you. Email sytech@sytechnologies.co.za or use the contact form.