Technical guide, , by Green Automatica engineering team · 2 min read

Schneider Electric Modicon PLC, Harmony HMI and Altivar VFD programming in Kenya

Programming Modicon M221, M241, M251, M340 and M580 PLCs, Harmony HMI screens and Altivar drives with EcoStruxure Machine Expert, Control Expert and SoMove.

Schneider Electric equipment is everywhere in East African panels, from Zelio relays and Modicon PLCs to Altivar drives and Harmony operator panels. We program, configure and troubleshoot complete Schneider control systems for machines, water and wastewater plants, buildings and process lines.

Schneider Electric equipment we program and configure

EquipmentProduct familiesSoftware we use
PLCsModicon M221, M241, M251, M262, M340, M580; Zelio LogicEcoStruxure Machine Expert and Machine Expert Basic, EcoStruxure Control Expert (Unity Pro), Zelio Soft
HMIHarmony GTO, ST6 and STO panelsVijeo Designer, EcoStruxure Operator Terminal Expert
VFDsAltivar ATV12, ATV320, ATV340, ATV600, ATV900SoMove, keypad and web server

Networks and protocols: Modbus RTU and Modbus TCP, EtherNet/IP, CANopen.

What we do on Schneider Electric systems

  • PLC programs and HMI screens for packaging machines, pumping stations and process skids
  • Upgrading older Twido and Zelio systems to Modicon M221 or M241
  • Altivar drive setup: motor tuning, PID, pump cascade, braking and safety functions
  • Modbus integration between PLCs, drives, energy meters and SCADA
  • Troubleshooting PLC faults, communication loss and drive trips

How we work on your Schneider Electric system

  1. Back up first. Before we touch anything, we upload and save the existing program, HMI project and drive parameters, so the machine can always be returned to how it was.
  2. Understand the process. We walk the machine with your operators and maintenance team, and agree in writing what the change or new program must do.
  3. Program and test offline. Logic, screens and drive settings are prepared and checked before site work, to keep downtime short.
  4. Commission on site. We test every input, output, interlock and alarm with your team, then run the machine under real load.
  5. Hand over properly. You receive the final, commented program, HMI project, drive parameter files, I/O list and drawings, plus training for your technicians.

Practical tips from our engineers

Pick the right software for the controller

Modicon M221 uses Machine Expert Basic, the M241, M251 and M262 use Machine Expert, and the M340 and M580 use Control Expert. Starting with the right tool and version avoids conversion problems.

Save Altivar settings with SoMove

Altivar drives store their configuration internally. A SoMove file of every drive lets a replacement unit be set up in minutes.

Add energy meters on Modbus

Schneider power meters on the same Modbus network let the PLC and SCADA track energy per machine, which shows where savings are.

Detailed Schneider Electric guides

Related services

See our PLC programming, SCADA and HMI and VFD and drives services, or read our overview of PLC, HMI and VFD programming for every major brand.

Frequently asked questions

Do you program Schneider Electric PLCs?

Yes. We program Modicon M221, M241, M251, M262, M340 and M580 PLCs and Zelio Logic relays, plus Harmony HMI panels.

Can you configure Altivar drives?

Yes. We configure Altivar ATV12, ATV320, ATV340, ATV600 and ATV900 drives with SoMove, including PID and Modbus control.

Keep reading

Tell us what you need to fix

Describe your site and the problem. An engineer reviews every request and replies with next steps, usually starting with a site assessment.